Thomson Reuters Corporates Status

Onesource Global Trade - Issue with Receiving CBP Replies

Identified - We have identified the issue. It is a known issue on the Census side that CBP developers are currently working to resolve. We do not have an ETA on resolution at this time, but we are closely monitoring it and working with CBP. We will provide updates when we have them. Please continue to use the workaround provided below.

Until this issue is resolved, clients need to request the reply file from their CBP rep and then reach out to Customer Support (IntegrationPoint@ThomsonReuters.com) to assist with getting that imported into the application.
Jul 31, 2026 - 08:32 CDT

Investigating - Thomson Reuters is investigating an issue where replies (Census Override CO and AD/CV (AC) query replies) are not being received in the GTM system. We are actively working with CBP to get this corrected. Until this issue is resolved, clients need to request the reply file from their CBP rep and then reach out to Customer Support (IntegrationPoint@ThomsonReuters.com) to assist with getting that imported into the application.
Jul 30, 2026 - 10:44 CDT

ONESOURCE GlobaL Trade - Content Extracts Degradation

Monitoring - Issue has been mitigated and we are currently monitoring. We will be reaching out affected customers in the near future.
Jul 29, 2026 - 10:59 CDT

Identified - Thomson Reuters is aware that some Content Extract clients are currently experiencing delays or missing content extracts. The team is currently working on a remediation. Content Extract customers experiencing this issue can reach out to the GTM Support team for further information. Once the remediation is in place, Thomson Reuters will be reaching out the affected customers.
Jul 23, 2026 - 11:02 CDT

WorkFlow Tools Operational

AMERS Calendar Operational

AMERS Calendar Classic Operational

AMERS FileRoom Operational

AMERS WorkFlow Operational

AMERS WorkFlow Manager Classic Operational

APAC Calendar Operational

APAC Calendar Classic Operational

APAC FileRoom Operational

APAC WorkFlow Operational

APAC WorkFlow Manager Classic Operational

EMEA Calendar Operational

EMEA Calendar Classic Operational

EMEA FileRoom Operational

EMEA WorkFlow Operational

EMEA WorkFlow Manager Classic Operational

Platform Operational

AMERS (onesourcetax.com) Operational

AMERS (onesourcelogin.com) Operational

AMERS Administration Operational

AMERS API Administration Operational

AMERS UAT (uat.onesourcetax.com) Operational

AMERS UAT (uat.onesourcelogin.com) Operational

APAC (apac1.onesourcetax.com) Operational

APAC (onesourcelogin.com.au) Operational

APAC Administration Operational

APAC API Administration Operational

EMEA (emea1.onesourcetax.com) Operational

EMEA (onesourcelogin.eu) Operational

EMEA Administration Operational

EMEA API Administration Operational

UAT API Administration Operational

UAT Administration Operational

Data Tools Operational

AMERS Audit Manager Operational

AMERS DataFlow Operational

AMERS Data Hub Operational

AMERS General Ledger Manager Operational

AMERS R&D Tax Credit Manager Operational

AMERS SAP Trial Balance Integration Operational

AMERS Workpapers Operational

APAC Audit Manager Operational

APAC DataFlow Operational

APAC Data Hub Operational

APAC General Ledger Manager Operational

APAC R&D Tax Credit Manager Operational

APAC SAP Trial Balance Integration Operational

APAC Workpapers Operational

EMEA Audit Manager Operational

EMEA DataFlow Operational

EMEA Data Hub Operational

EMEA General Ledger Manager Operational

EMEA SAP Trial Balance Integration Operational

EMEA R&D Tax Credit Manager Operational

EMEA Workpapers Operational

Direct Tax Operational

AMERS (web) BEPS Action Manager Operational

AMERS DAC6 Reporter Operational

AMERS Data Query Operational

AMERS GoSystem Tax RS Operational

AMERS GoSystem Tax RS API Operational

AMERS Income Tax Operational

AMERS Income Tax API Operational

AMERS State Apportionment Operational

AMERS (legacy) Statutory Reporting Operational

AMERS (web) Statutory Reporting Operational

AMERS (New) Tax Provision Operational

AMERS Tax Provision Operational

AMERS Uncertain Tax Positions Operational

APAC (legacy) Corporate Tax Operational

APAC (web) Corporate Tax Operational

APAC (web) E-filing Manager (Corporate Tax) Operational

APAC (web) Fringe Benefits Tax Operational

APAC (legacy) Statutory Reporting Operational

APAC (web) Statutory Reporting Operational

APAC Tax Provision Operational

APAC Trusts (AU) Operational

APAC Uncertain Tax Positions Operational

EMEA (web) BEPS Action Manager Operational

EMEA (legacy) Corporate Tax Operational

EMEA (web) Corporate Tax Operational

EMEA (web) E-filing Manager (Corporate Tax) Operational

EMEA DAC6 Reporter Operational

EMEA (legacy) Statutory Reporting Operational

EMEA (web) Statutory Reporting Operational

EMEA Tax Provision Operational

EMEA Uncertain Tax Positions Operational

Global Trade Partial Outage

Global Trade Content Operational

Global Trade - LATAM Operational

Global Trade - pwd by Integration Point Operational

Govt Connectivity BE - PLDA Operational

Govt Connectivity DE - ATLAS Operational

Govt Connectivity FR - DELTA Operational

Govt Connectivity MX - SAAI/COVE Operational

Govt Connectivity NL - AGS Operational

Govt Connectivity UK - CHIEF/CDS Operational

Govt Connectivity US - ABI/AES Partial Outage

GTM Platform Operational

Implementation Environment Operational

ONESOURCE Classifier Operational

Transports AS2 Operational

Transports Client Interchange Web Service Operational

Transports FTP Operational

Indirect Tax Operational

ONESOURCE Determination Enterprise Cloud (AWS AMER) Operational

ONESOURCE Determination Enterprise Cloud (AWS EMEA) Operational

ONESOURCE Determination Enterprise Cloud (OCI AMER) Operational

ONESOURCE Determination Enterprise Cloud (OCI MENA) Operational

ONESOURCE Determination Anywhere (AWS AMER) Operational

ONESOURCE Determination Anywhere (OCI AMER) Operational

ONESOURCE Determination Anywhere (OCI MENA) Operational

Configuration API (AWS AMER) Operational

Configuration API (AWS EMEA) Operational

Configuration API (OCI AMER) Operational

Configuration API (OCI MENA) Operational

ONESOURCE Determination Original Cloud (AMER) Operational

ONESOURCE Determination Original Dedicated Cloud (AMER) Operational

ONESOURCE Determination Original Dedicated Cloud (EMEA) Operational

Certificate Manager Original Cloud Operational

Certificate Manager Enterprise Cloud Operational

Reports and Analytics Enterprise Cloud Operational

Reporting - Original Cloud Operational

US Tax Content Operational

Canada Tax Content Operational

International Tax Content Operational

Content Extract Operational

Fast Sales Tax Operational

ONESOURCE Property Tax Operational

ONESOURCE Sales and Use Tax Compliance (AMER) Operational

ONESOURCE Indirect Compliance (APAC) Operational

APAC (web) E-filing Manager (Indirect Compliance) Operational

ONESOURCE Indirect Compliance (EMEA) Operational

EMEA (web) E-filing Manager (Indirect Compliance) Operational

ONESOURCE Indirect Compliance (UAT) Operational

ONESOURCE E-Invoicing (PROD) Operational

ONESOURCE E-Invoicing (UAT) Operational

ONESOURCE Determination - On Premise Operational

ONESOURCE Determination (APAC) Operational

IDT Integrations Operational

Address Validation Service Operational

BigCommerce Operational

Coupa Operational

Data File Integrator - Enterprise Cloud Operational

Data File Integrator - Original Cloud Operational

Microsoft Dynamics 365 - Commerce Cloud Operational

Microsoft Dynamics 365FOE Operational

Microsoft Dynamics AX 2012 Operational

Microsoft Dynamics GP Operational

NetSuite Legacy/Direct Operational

NetSuite SuiteTax Operational

Oracle EBS R12 Operational

Oracle Fusion Tax Cloud - 1.x Operational

Oracle Fusion Tax Cloud - 2.x Operational

Salesforce Subscription Management Operational

SAP 5.2B Basic (RFC) Operational

SAP Ariba - Cloud Operational

SAP Ariba - OnPremise Operational

SAP Ariba - Original cloud Operational

SAP Business One Operational

SAP C4/HANA Commerce Cloud Operational

SAP Global Next Operational

SAP Global Tax Service Operational

SAP US Tax S4/HANA Cloud Operational

Trust & Info Rptg Operational

AMERS NRA - FNIS & Users Website Operational

AMERS Tax Information Reporting Operational

AMERS Trust Tax Operational

AMERS Trust Tax Insight Operational

Risk Solutions Operational

AMERS Compliance Learning Operational

AMERS Oden Online (State Rules and Regulations) Operational

AMERS Oden Policy Terminator Operational

AMERS Oden Track (web) Operational

AMERS Regulatory Intelligence Operational

ANZ Compliance Learning Operational

APAC Compliance Learning Operational

APAC Regulatory Intelligence Operational

EMEA Compliance Learning Operational

EMEA Regulatory Intelligence Operational

Tax Brazil Operational

Checkpoint Corporate Operational

ONESOURCE DFe Operational

ONESOURCE Tax Analyser Operational

Tax One for SAP® solutions Operational

Tax Brazil - Tax One Operational

AMERS – ONESOURCE Tax One Operational

AMERS – ONESOURCE ECF/REINF Messaging Operational

AMERS - Tax Reform Operational

AMERS - Tax Automation Operational

AMERS - TDM: Tax Data Management Operational

AMERS - OBI: ONESOURCE BRASIL Integration Operational

AMERS - Interfaces Operational

EMEA - ONESOURCE Tax One Operational

EMEA - ONESOURCE ECF/REINF Messaging Operational

EMEA - Tax Reform Operational

EMEA - Tax Automation Operational

EMEA - TDM: Tax Data Management Operational

EMEA - OBI: ONESOURCE BRASIL Integration Operational

EMEA - Interface Operational

Customer Support Operational

Case Management Dashboard Operational

Platform Operational

Workflow Tools Operational

Data Tools Operational

Direct Tax Operational

Global Trade Operational

Indirect Tax Operational

Trust & Info Rptg Operational

Legal Solutions Operational

Risk Solutions Operational

Tax Brazil Operational

Operational

Degraded Performance

Partial Outage

Major Outage

Maintenance

Scheduled Maintenance

Reports and Analytics release Version 2026.07 in EMEA UAT region Aug `4`, `2026` `08:00`-`15:00` CDT

The deployment of Reports and Analytics release version 2026.07 in the EMEA UAT environment is scheduled for 08:00 AM to 3:00 PM CDT. Rest assured that your tax calculation services will not be affected during this maintenance period. However, the Reports and Analytics User interface will be unavailable until the maintenance is completed.
Posted on Jul 30, 2026 - 11:35 CDT

Reports and Analytics release Version 2026.07 in AMER UAT region Aug `5`, `2026` `06:00`-`13:00` CDT

The deployment of Reports and Analytics release version 2026.07 in the AMER UAT environment is scheduled for 06:00 AM to 1:00 PM CDT. Rest assured that your tax calculation services will not be affected during this maintenance period. However, the Reports and Analytics User interface will be unavailable until the maintenance is completed.
Posted on Jul 30, 2026 - 11:36 CDT

ONESOURCE Indirect Compliance Maintenance Event (R2026.08) planned on Thursday 06th August 2026 Aug `6`, `2026` `08:00`-`12:00` CDT

Database maintenance event in progress to deploy R2026.08

There will be limited service during this deployment.
Posted on Jul 28, 2026 - 05:42 CDT

ONESOURCE Indirect Compliance Maintenance Event (R2026.08) planned on Thursday 06th August 2026 Aug `6`, `2026` `19:30`-`23:30` CDT

Database maintenance event in progress to deploy R2026.08

There will be limited service during this deployment.
Posted on Jul 28, 2026 - 05:39 CDT

ONESOURCE Income Tax Maintenance Aug `7`, `2026` `00:00`-`01:30` CDT

ONESOURCE Income Tax will be undergoing maintenance on Friday, Aug 7th between 12:00am – 1:30am CT
Posted on Jul 31, 2026 - 15:17 CDT

2026 Disaster Recovery Testing for ONESOURCE Determination Enterprise Cloud (OCI MENA) Aug `7`, `2026` `08:30`-`14:30` CDT

Disaster Recovery testing between 8:30 AM CDT and 5:00 PM CDT. Customers hosted in (OCI MENA) region will continue to have full access to the ONESOURCE Determination tax calculation service. The Determination user interface is not available during this DR testing window.
Posted on Jul 31, 2026 - 17:07 CDT

ONESOURCE Income Tax Maintenance Aug `9`, `2026` `00:00`-`04:00` CDT

ONESOURCE Income Tax will be undergoing maintenance on Sunday, Aug 9th between 12:00am – 4:00am CT, users may see a 10-15 minute degradation in the application while we are performing the maintenance.
Posted on Jul 31, 2026 - 17:00 CDT

ONESOURCE GTM – AWS Maintenance Aug `9`, `2026` `00:00`-`17:00` CDT

Thomson Reuters will be performing scheduled maintenance on Sunday, Aug 9th, 2026 beginning at 1 AM Eastern time and will conclude by Sunday, Aug 9th, 2026 at 6 PM Eastern time.
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Feb 25, 2026 - 12:44 CST

ONESOURCE Tax Information Release OTIR Release 26.03 11th August 2026 (AMERS) Aug `11`, `2026` `19:00` - Aug `12`, `2026` `06:00` CDT

ONESOURCE Tax Information Reporting Release 26.03 will be installed from 7:00 P.M. (CT) on 11th August 2026 until 06:00 A.M. (CT) on 12th August 2026. System availability and API's may be affected during release time.
Posted on Nov 20, 2025 - 05:33 CST

OSPI Platform – UAT Minor release for August 2026 Aug `12`, `2026` `00:00`-`06:00` CDT

ONESOURCE Platform will be performing scheduled maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services, including authentication and administration, might experience degraded performance. In such cases, we recommend trying after some time. We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team. Thank you for your cooperation.
Posted on Jul 31, 2026 - 03:45 CDT

Reports and Analytics release Version 2026.07 in EMEA PROD region Aug `12`, `2026` `08:00`-`15:00` CDT

The deployment of Reports and Analytics release version 2026.07 in the EMEA PROD environment is scheduled for 08:00 AM to 3:00 PM CDT. Rest assured that your tax calculation services will not be affected during this maintenance period. However, the Reports and Analytics User interface will be unavailable until the maintenance is completed.
Posted on Jul 30, 2026 - 11:39 CDT

OSPI Platform – APAC Minor release for August 2026 Aug `13`, `2026` `05:00`-`11:00` CDT

Reports and Analytics release Version 2026.07 in AMER PROD region Aug `13`, `2026` `06:00`-`13:00` CDT

The deployment of Reports and Analytics release version 2026.07 in the AMER PROD environment is scheduled for 06:00 AM to 1:00 PM CDT. Rest assured that your tax calculation services will not be affected during this maintenance period. However, the Reports and Analytics User interface will be unavailable until the maintenance is completed.
Posted on Jul 30, 2026 - 11:41 CDT

OSPI Platform – EMEA Minor release for August 2026 Aug `13`, `2026` `13:00`-`19:00` CDT

OSPI Platform – AMER Minor release for August 2026 Aug `14`, `2026` `00:00`-`06:00` CDT

OSPI Platform – UAT User Administration release for August 2026 Aug `19`, `2026` `00:00`-`06:00` CDT

ONESOURCE Platform will be performing scheduled maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services, including authorization and administration, might experience degraded performance. In such cases, we recommend trying after some time. We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team. Thank you for your cooperation.
Posted on Jul 31, 2026 - 03:57 CDT

OSPI Platform – APAC User Administration release for August 2026 Aug `20`, `2026` `05:00`-`11:00` CDT

ONESOURCE Platform will be performing scheduled maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services, including authorization and administration, might experience degraded performance. In such cases, we recommend trying after some time. We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team. Thank you for your cooperation.
Posted on Jul 31, 2026 - 03:59 CDT

OSPI Platform – EMEA User Administration release for August 2026 Aug `20`, `2026` `13:00`-`19:00` CDT

ONESOURCE Platform will be performing scheduled maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services, including authorization and administration, might experience degraded performance. In such cases, we recommend trying after some time. We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team. Thank you for your cooperation.
Posted on Jul 31, 2026 - 04:00 CDT

OSPI Platform – AMER User Administration release for August 2026 Aug `21`, `2026` `00:00`-`06:00` CDT

ONESOURCE Platform will be performing scheduled maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services, including authorization and administration, might experience degraded performance. In such cases, we recommend trying after some time. We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team. Thank you for your cooperation.
Posted on Jul 31, 2026 - 04:02 CDT

2026 Disaster Recovery Testing for ONESOURCE Determination Enterprise Cloud and Determination Anywhere (AWS AMER) Aug `22`, `2026` `00:00`-`06:00` CDT

Disaster Recovery testing between 12:01 AM CDT and 6 AM CDT. Customers hosted in (AWS AMER) region will continue to have full access to the ONESOURCE Determination tax calculation service. The Determination user interface is not available during this DR testing window.
Posted on May 27, 2026 - 16:42 CDT

2026 Disaster Recovery Testing for ONESOURCE Determination Enterprise Cloud (AWS EMEA) Aug `22`, `2026` `00:00`-`06:00` CDT

Disaster Recovery testing between 12:01 AM CDT and 6 AM CDT. No service interruption expected. Customers hosted in (AWS EMEA) region will continue to have full access to the ONESOURCE Determination tax calculation service and user interface during this DR testing window.
Posted on May 27, 2026 - 16:43 CDT

2026 Disaster Recovery Testing for ONESOURCE Determination Enterprise Cloud and Determination Anywhere (OCI AMER) Aug `22`, `2026` `00:01`-`06:01` CDT

Disaster Recovery testing between 12:01 AM CDT and 6 AM CDT. Customers hosted in (OCI AMER) region will continue to have full access to the ONESOURCE Determination tax calculation service. The Determination user interface is not available during this DR testing window.
Posted on Jul 03, 2026 - 04:04 CDT

ONESOURCE Tax Information Reporting System Maintenance 22nd August 2026 (AMERS) Aug `22`, `2026` `22:00` - Aug `23`, `2026` `07:00` CDT

ONESOURCE Tax Information Reporting and API's will be unavailable from 10:00 P.M. (CT) on 22nd August 2026 until 07:00 A.M. (CT) on 23rd August 2026 for scheduled maintenance.
Posted on Nov 20, 2025 - 05:34 CST

ONESOURCE GTM – AWS Maintenance Aug `23`, `2026` `00:00`-`17:00` CDT

Thomson Reuters will be performing scheduled maintenance on Sunday, Aug 23rd, 2026 beginning at 1 AM Eastern time and will conclude by Sunday, Aug 23rd, 2026 at 6 PM Eastern time.
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Feb 25, 2026 - 12:45 CST

OSPI Platform – UAT Major release for August 2026 Aug `24`, `2026` `00:00`-`06:00` CDT

OSPI Platform – APAC Major release for August 2026 Aug `25`, `2026` `05:00`-`11:00` CDT

OSPI Platform – EMEA Major release for August 2026 Aug `25`, `2026` `13:00`-`19:00` CDT

OSPI Platform – AMER Major release for August 2026 Aug `26`, `2026` `00:00`-`06:00` CDT

ONESOURCE GTM – AWS Maintenance Sep `6`, `2026` `00:00`-`17:00` CDT

Thomson Reuters will be performing scheduled maintenance on Sunday, Sep 6th, 2026 beginning at 1 AM Eastern time and will conclude by Sunday, Sep 6th, 2026 at 6 PM Eastern time.
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Feb 25, 2026 - 12:45 CST

ONESOURCE GTM – AWS Maintenance Sep `20`, `2026` `00:00`-`17:00` CDT

Thomson Reuters will be performing scheduled maintenance on Sunday, Sep 20th, 2026 beginning at 1 AM Eastern time and will conclude by Sunday, Sep 20th, 2026 at 6 PM Eastern time.
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Feb 25, 2026 - 12:45 CST

ONESOURCE Tax Information Release OTIR Release 26.04 20th October 2026 (AMERS) Oct `20`, `2026` `19:00` - Oct `21`, `2026` `06:00` CDT

ONESOURCE Tax Information Reporting Release 26.04 will be installed from 7:00 P.M. (CT) on  20th October 2026 until 06:00 A.M. (CT) on 21st October 2026. System availability and API's may be affected during release time.
Posted on Nov 20, 2025 - 05:35 CST

ONESOURCE Tax Information Reporting System Maintenance 24th October 2026 (AMERS) Oct `24`, `2026` `22:00` - Oct `25`, `2026` `07:00` CDT

ONESOURCE Tax Information Reporting and API's will be unavailable from 10:00 P.M. (CT) on 24th October 2026 until 07:00 A.M. (CT) on 25th October 2026 for scheduled maintenance.
Posted on Nov 20, 2025 - 05:36 CST

ONESOURCE Tax Information Reporting System Maintenance 21st November 2026 (AMERS) Nov `21`, `2026` `22:00` - Nov `22`, `2026` `07:00` CST

ONESOURCE Tax Information Reporting and API's will be unavailable from 10:00 P.M. (CT) on 21st November  2026 until 07:00 A.M. (CT) on 22nd November 2026 for scheduled maintenance.
Posted on Nov 20, 2025 - 05:37 CST

ONESOURCE Tax Information Release OTIR Release 26.05 1st December 2026 (AMERS) Dec `1`, `2026` `19:00` - Dec `2`, `2026` `06:00` CST

ONESOURCE Tax Information Reporting Release 26.05 will be installed from 7:00 P.M. (CT) on 1st December 2026 until 06:00 A.M. (CT) on 2nd December 2026. System availability and API's may be affected during release time.
Posted on Nov 20, 2025 - 05:38 CST

ONESOURCE Tax Information Release OTIR Release 26.06 22nd December 2026 (AMERS) Dec `22`, `2026` `19:00` - Dec `23`, `2026` `06:00` CST

ONESOURCE Tax Information Reporting Release 26.06 will be installed from 7:00 P.M. (CT) on 22nd December 2026 until 06:00 A.M. (CT) on 23rd December 2026. System availability and API's may be affected during release time.
Posted on Nov 20, 2025 - 05:38 CST

ONESOURCE Tax Information Reporting System Maintenance 26th December 2026 (AMERS) Dec `26`, `2026` `22:00` - Dec `27`, `2026` `07:00` CST

ONESOURCE Tax Information Reporting and API's will be unavailable from 10:00 P.M. (CT) on 26th December 2026 until 07:00 A.M. (CT) on 27th December 2026 for scheduled maintenance.
Posted on Nov 20, 2025 - 05:39 CST

ONESOURCE Tax Information Release OTIR Release 26.07 16th February 2027 (AMERS) Feb `16`, `2027` `19:00` - Feb `17`, `2027` `06:00` CST

ONESOURCE Tax Information Reporting Release 26.07 will be installed from 7:00 P.M. (CT) on 16th February 2027 until 06:00 A.M. (CT) on 17th February 2027. System availability and API's may be affected during release time.
Posted on Nov 20, 2025 - 05:48 CST

Past Incidents

Aug `2`, `2026`

No incidents reported today.

Aug `1`, `2026`

ONESOURCE Corporate Tax - Legacy [EMEA]

Completed - The scheduled maintenance has been completed.
Aug 1, 06:30 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 31, 20:30 CDT

Scheduled - To support ongoing improvements to the reliability and resilience of our platform infrastructure, we will be performing scheduled maintenance on Saturday 1st August, 02:30 BST to 12:30 BST.

During this maintenance window, no downtime is expected however, customers may experience brief and intermittent service disruptions. Any impact is expected to be minimal and short-lived. No changes to product functionality are expected as a result of this maintenance.

Thank you for your understanding and continued partnership.
Jul 23, 08:01 CDT

ONESOURCE Statutory Reporting - Legacy [EMEA]

Completed - The scheduled maintenance has been completed.
Aug 1, 05:30 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 31, 19:30 CDT

Update - We will be undergoing scheduled maintenance during this time.
Jul 23, 05:28 CDT

Scheduled - ONESOURCE Statutory Reporting - Legacy [EMEA] will be undergoing scheduled maintenance during August 1, 2026 01:30 BST to August 1, 2026 11:30 BST.
Jul 23, 05:26 CDT

ONESOURCE E-Invoicing (UAT)-Delayed Log Availability in Unified Logging

Completed - The scheduled maintenance has been completed.
Aug 1, 05:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 28, 05:00 CDT

Scheduled - Customers using ONESOURCE E Invoicing (UAT) may experience a delay of approximately 1.5 hours in log visibility within Unified Logging from Tuesday July 28, 2026 through Friday July 31, 2026, between 11:00 PM and 4:00 AM CEST. Processing is not impacted. Thank you for your patience.
Jul 27, 15:52 CDT

Delay in Data for reports and analytics service in AMER PROD

Resolved - This incident has been resolved.
Aug 1, 03:48 CDT

Update - Reports and Analytics Service in AMER PROD is currently experiencing delay of around 5 hours. We are working on the data catch up. Will notify once complete.
Aug 1, 01:11 CDT

Investigating - We are currently experiencing delay of 7 hours in processing Reports and Analytics Service in AMER PROD . We are working on the data catch up, will notify once complete with our Reports and Analytics service.
Jul 31, 19:16 CDT

Jul `31`, `2026`

Access issues are being observed for several ONESOURCE products. We are working on resolving the issue

Resolved - This incident has been resolved.
Jul 31, 17:15 CDT

Monitoring - The ONESOURCE access issues have been mitigated for most customers. We are continuing to monitor the environment and investigate the root cause to ensure the incident has been fully mitigated.
Jul 31, 15:36 CDT

Identified - We continue to investigate access issues impacting multiple ONESOURCE products. Our teams are actively working on mitigation efforts and are beginning to see signs of service recovery in parts of the platform. Customers may still experience intermittent issues while we work toward full restoration.
Jul 31, 15:20 CDT

Investigating - We are currently experiencing intermittent issues with the ONESOURCE Access feature with our ONESOURCE Login Services. Our team is actively working to resolve this matter as quickly as possible. We apologize for any inconvenience and appreciate your understanding and patience.

Further updates will be provided here as soon as we have more information. If you have any questions, please contact Customer Support.
Jul 31, 14:59 CDT

OAuth Service Latency and UI Unavailability in AMER PROD and OCI PROD

Resolved - We experienced elevated latencies with the OAuth service in the ONESOURCE Indirect Tax Determination Enterprise Cloud, impacting the AMER PROD and OCI PROD environments between 2:00 PM CT and 4:13 PM CT on July 24, 2026. Additionally, the IndirectTax UI was unavailable between 2:40 PM CT and 3:15 PM CT during this window. The issue has since been fully mitigated, and all services are currently operating normally.
Jul 31, 16:49 CDT

OSPI Platform – AMER OWM Minor release for July 2026

Completed - The scheduled maintenance has been completed.
Jul 31, 06:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 31, 00:00 CDT

Scheduled - ONESOURCE Platform will be performing scheduled maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services, including authentication and administration, might experience degraded performance. In such cases, we recommend trying after some time. We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team. Thank you for your cooperation.
Jul 27, 16:15 CDT

Delay in Data for reports and analytics service in AMER PROD

Resolved - The data catch-up has been completed.
Jul 31, 04:34 CDT

Update - Reports and Analytics Service in AMER PROD is currently experiencing delay of around 10 hours. We are working on the data catch up. Will notify once complete.
Jul 31, 01:07 CDT

Investigating - We are currently experiencing delays in processing Reports and Analytics Service in AMER PROD is currently experiencing delay of around 8 hours. We are working on the data catch up, will notify once complete with our Reports and Analytics service.
Jul 30, 19:13 CDT

ONESOURCE Corporate Tax Legacy July UK Release

Completed - The scheduled maintenance has been completed.
Jul 31, 00:30 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 30, 20:30 CDT

Scheduled - ONESOURCE Corporate Tax [EMEA] will be undergoing scheduled maintenance from Friday 31st July 02:30 BST to Friday 31st July 06:30 BST.
Jul 28, 02:18 CDT

Jul `30`, `2026`

OSPI Platform – EMEA OWM Minor release for July 2026

Completed - The scheduled maintenance has been completed.
Jul 30, 19:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 30, 13:00 CDT

OSPI Platform – APAC OWM Minor release for July 2026

Completed - The scheduled maintenance has been completed.
Jul 30, 11:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 30, 05:00 CDT

Jul `29`, `2026`

Delay in Data for reports and analytics service in AMER PROD

Resolved - This incident has been resolved.
Jul 29, 20:44 CDT

Investigating - Reports and Analytics Service in AMER PROD is currently experiencing delay of around 7 hours. We are working on the data catch up, will notify once complete.
Jul 29, 16:49 CDT

Onesource GTM - Certificate Update

Completed - The scheduled maintenance has been completed.
Jul 29, 09:30 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 29, 09:00 CDT

Scheduled - The certificate for the gtm.onesourcetax.com URL was updated on July 19, 2026. If you have certificates hard coded in your ERP or feed systems, you will need to download the new certificate using the instructions below.

Steps to update:
1) To retrieve the updated certificate, you navigate to the endpoint (https://gtm.onesourcetax.com) in a browser.
2) In the address bar there will be a padlock to the left of the URL. Click on the padlock
3) This will give you a drop down, choose Connection is secure option.
4) Then click the certificate icon in the upper right corner . This will give you a pop-up.
5) Click Details tab, and then export in the bottom right corner to download/export the updated certificate.

PLEASE NOTE – the new certificate you download/export should have an expiration date of 2027.

If you are still unable to download the correct certificate, please reach out via email to IntegrationPoint@ThomsonReuters.com for further support.
Jul 28, 16:20 CDT

Jul `28`, `2026`

Delay in Data for Reports and Analytics Service in AMER PROD

Resolved - This incident has been resolved.
Jul 28, 23:47 CDT

Update - Reports and Analytics Service in AMER PROD is currently experiencing delay of around 5 hours. We are working on the data catch up. Will notify once complete.
Jul 28, 20:18 CDT

Investigating - We are currently experiencing delays in processing data for the Reports and Analytics Service. Reports and Analytics Service in AMER PROD is currently experiencing a delay of approximately 6 hours. We are actively working on the data catch-up process and will provide an update once processing has completed.
Jul 28, 13:34 CDT

ONESOURCE Events Backend Services July 2026 release in AMER

Completed - The scheduled maintenance has been completed.
Jul 28, 05:01 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 28, 00:00 CDT

Scheduled - ONESOURCE Events will be performing scheduled maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services may experience some issues. In such cases, we recommend trying after some time. We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team. Thank you for your cooperation.

To explore the capabilities of ONESOURCE Events, please refer to the Guide.
Jul 24, 02:55 CDT

Jul `27`, `2026`

Delay in Data for reports and analytics service in AMER PROD

Resolved - This incident has been resolved.
Jul 27, 22:38 CDT

Investigating - Reports and Analytics Service in AMER PROD is currently experiencing delay of around 7 hours. We are working on the data catch up. Will notify once complete.
Jul 27, 15:29 CDT

ONESOURCE Events Backend Services July 2026 release in EMEA

Completed - The scheduled maintenance has been completed.
Jul 27, 21:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 27, 16:00 CDT

OSPI Platform – EMEA Emergency maintenance for July 2026

Completed - The scheduled maintenance has been completed.
Jul 27, 18:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 27, 12:00 CDT

Scheduled - ONESOURCE Platform will be performing scheduled maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services, including authentication, authorization, and administration, might experience degraded performance. In such cases, we recommend trying after some time. We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team. Thank you for your cooperation.
Jul 23, 16:23 CDT

ONESOURCE Events Backend Services July 2026 release in APAC

Completed - The scheduled maintenance has been completed.
Jul 27, 12:01 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 27, 07:00 CDT

OSPI Platform – UAT Emergency maintenance for July 2026

Completed - The scheduled maintenance has been completed.
Jul 27, 06:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 27, 00:00 CDT

Scheduled - ONESOURCE Platform will be performing scheduled maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services, including authentication, authorization, and administration, might experience degraded performance. In such cases, we recommend trying after some time. We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team. Thank you for your cooperation.
Jul 23, 16:23 CDT

ONESOURCE Tax Provision

Completed - The scheduled maintenance has been completed.
Jul 27, 03:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 26, 21:00 CDT

Scheduled - ONESOURCE Tax Provision will be undergoing server maintenance on July 26-27, 2026.
Jul 24, 15:51 CDT

Jul `26`, `2026`

Manutenção do Ambiente PROD02

Completed - The scheduled maintenance has been completed.
Jul 26, 22:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 24, 22:00 CDT

Scheduled - Informamos que realizaremos no próximo final de semana uma importante atualização de infraestrutura.

A manutenção permitirá ampliar a capacidade de escala, trazer mais agilidade para ajustes de infraestrutura e melhorar a preparação do ambiente para cenários de crescimento de volume ou necessidade pontual de capacidade.

Considere no período inatividade de nossa aplicação, período no qual a aplicação poderá permanecer inacessível.

Para entendimento da aplicação que está instalada acesse.
Jul 23, 09:48 CDT

Onesource Global Trade - Emergency Maintenance

Completed - The scheduled maintenance has been completed.
Jul 26, 11:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 26, 09:00 CDT

Scheduled - Thomson Reuters GTM will be performing an emergency upgrade required by AWS Fargate on Sunday, July 26th starting at 10 am Eastern. During this 2-hour maintenance window clients can expect a few minutes of downtime while the upgrade is being installed.

Should you have any questions, please contact Support.
Jul 24, 14:02 CDT

ONESOURCE Trust Tax System Maintenance Scheduled for July 25-26 (AMERS)

Completed - The scheduled maintenance has been completed.
Jul 26, 10:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 25, 10:00 CDT

Scheduled - Access to ONESOURCE Trust Tax and ONESOURCE Trust Tax Insight applications will be suspended from 10:00 A.M. (CT) on Saturday, July 25, 2026, until 10:00 A.M. (CT) on Sunday, July 26, 2026. We appreciate your understanding while we perform this necessary maintenance.
Jul 24, 02:48 CDT

AMER - ONESOURCE Platform Security Maintenance Application server patching for July 2026

Completed - The scheduled maintenance has been completed.
Jul 26, 08:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 26, 00:00 CDT

Scheduled - ONESOURCE Platform will be undergoing maintenance in AMER on Sunday, Jul 26, 2026, 12 AM CDT - 8 AM CDT.
Users may experience degraded performance from 00:00 AM CDT to 00:30 AM CDT and 04:00 AM CDT to 04:30 AM CDT only.
In case of any issues, we recommend the users to please retry.
We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Jul 3, 10:56 CDT

Delay in Data for reports and analytics service in AMER UAT

Resolved - This incident has been resolved.
Jul 26, 07:49 CDT

Investigating - Reports and Analytics Service in AMER UAT is currently experiencing delay of around 9 hours. We are working on the data catch up, will notify once complete.
Jul 26, 04:35 CDT

ONESOURCE Tax Information Reporting System Maintenance 25th July 2026 (AMERS)

Completed - The scheduled maintenance has been completed.
Jul 26, 07:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 25, 22:00 CDT

Scheduled - ONESOURCE Tax Information Reporting and API's will be unavailable from 10:00 P.M. (CT) on 25th July 2026 until 07:00 A.M. (CT) on 26th July 2026 for scheduled maintenance.
Nov 20, 05:32 CST

Jul `25`, `2026`

ONESOURCE Trusts [APAC] - Downtime notification

Completed - The scheduled maintenance has been completed.
Jul 25, 15:01 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 25, 07:02 CDT

Scheduled - To help maintain the security and reliability of the ONESOURCE Platform, we will be performing scheduled maintenance during the below timings. This includes routine application server patching activities.

The maintenance activity window is scheduled for Saturday, July 25th 22:00 AEST to Sunday, July 26th 06:00 AEST.
Within this window, the expected downtime is between 22:00 AEST to 22:30 AEST and 02:00 AEST to 02:30 AEST, during which ONESOURCE Trusts will be unavailable.

This is an infrastructure-only maintenance activity, and there are no changes to product functionality expected.

Thank you for your understanding and continued partnership.
Jul 9, 08:31 CDT

APAC - ONESOURCE Platform Security Maintenance Application server patching for July 2026

Completed - The scheduled maintenance has been completed.
Jul 25, 15:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 25, 07:01 CDT

Scheduled - ONESOURCE Platform will be undergoing maintenance in APAC on Saturday, Jul 25, 07:00 AM - 3:00 PM CDT.
Users may experience degraded performance from 07:00 AM CDT to 07:30 AM CDT and 11:00 AM to 11:30 AM CDT only.
In case of any issues, we recommend the users to please retry.
We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Jul 3, 10:54 CDT

ONESOURCE Corporate Tax [APAC] - Downtime notification

Completed - The scheduled maintenance has been completed.
Jul 25, 15:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 25, 07:00 CDT

Scheduled - To help maintain the security and reliability of the ONESOURCE Platform, we will be performing scheduled maintenance during the below timings. This includes routine application server patching activities.

The maintenance activity window is scheduled for Saturday, July 25th 22:00 AEST to Sunday, July 26th 06:00 AEST.
Within this window, the expected downtime is between 22:00 AEST to 22:30 AEST and 02:00 AEST to 02:30 AEST, during which ONESOURCE Corporate Tax will be unavailable.

This is an infrastructure-only maintenance activity, and there are no changes to product functionality expected.

Thank you for your understanding and continued partnership.
Jul 9, 08:31 CDT

OSPI Platform – AMER Emergency maintenance for July 2026

Completed - The scheduled maintenance has been completed.
Jul 25, 04:30 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 24, 22:30 CDT

Scheduled - ONESOURCE Platform will be performing scheduled maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services, authentication, authorization, and administration, might experience degraded performance. In such cases, we recommend trying after some time. We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team. Thank you for your cooperation.
Jul 24, 10:49 CDT

Delay in Data for reports and analytics service in AMER PROD

Resolved - This incident has been resolved.
Jul 25, 03:53 CDT

Update - Reports and Analytics Service in AMER PROD is currently experiencing delay of around 6 hours. We are working on the data catch up, will notify once complete.
Jul 24, 20:57 CDT

Investigating - Reports and Analytics Service in AMER PROD is currently experiencing delay of around 8 hours. We are working on the data catch up, will notify once complete.
Jul 24, 14:47 CDT

ONESOURCE Corporate Tax [EMEA] - Downtime notification

Completed - The scheduled maintenance has been completed.
Jul 25, 02:01 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 24, 18:00 CDT

Scheduled - To help maintain the security and reliability of the ONESOURCE Platform, we will be performing scheduled maintenance during the below timings. This includes routine application server patching activities.

The maintenance activity window is scheduled for Saturday, July 25th 00:00 BST to 08:00 BST.
Within this window, the expected downtime is between 00:00 BST to 00:30 BST and 04:00 BST to 04:30 BST, during which ONESOURCE Corporate Tax will be unavailable.

This is an infrastructure-only maintenance activity, and there are no changes to product functionality expected.

Thank you for your understanding and continued partnership.
Jul 9, 08:30 CDT

EMEA - ONESOURCE Platform Security Maintenance Application server patching July 2026

Completed - The scheduled maintenance has been completed.
Jul 25, 02:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 24, 18:00 CDT

Scheduled - ONESOURCE Platform will be undergoing maintenance in EMEA on Friday, Jul 24, 06:00 PM - Jul 25, 02:00 AM CDT
Users may experience degraded performance from 6:00 PM CDT to 6:30 PM CDT and 10:00 PM CDT to 10:30 PM CDT only..
In case of any issues, we recommend the users to please retry.
We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Jul 3, 10:55 CDT

Jul `24`, `2026`

Intermittent Failures and Elevated Latencies for REST API Calls in AWS and OCI Production and UAT Environments

Resolved - Dear Customers,

We experienced intermittent failures and high latencies with the Tax Calculation feature for REST APIs in the ONESOURCE Indirect Tax Determination Enterprise cloud, affecting the AWS AMER UAT, AWS AMER PROD, OCI UAT, and OCI PROD environments between 1:30 PM CT and 5:10 PM CT on July 24, 2026. The issue has now been mitigated.

We apologize for any inconvenience and appreciate your understanding and patience.

Further details will be provided in the formal RCA. If you have any questions, please contact Customer Support.
Jul 24, 19:13 CDT

Investigating - We are currently experiencing intermittent issues with the Tax Calculation API feature with our ONESOURCE Indirect Tax Enterprise service. Our team is actively working to resolve this matter as quickly as possible. We apologize for any inconvenience and appreciate your understanding and patience.

Further updates will be provided here as soon as we have more information. If you have any questions, please contact Customer Support.
Jul 24, 15:26 CDT

OSPI Platform – APAC Emergency maintenance for July 2026

Completed - The scheduled maintenance has been completed.
Jul 24, 13:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 24, 07:00 CDT

Scheduled - ONESOURCE Platform will be performing scheduled maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services, including authentication, authorization, and administration, might experience degraded performance. In such cases, we recommend trying after some time. We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team. Thank you for your cooperation.
Jul 23, 16:23 CDT

Intermittent Tax calculation failures in AMER, EMEA UAT & Production

Resolved - Dear Customers,

We experienced intermittent tax calculation failures affecting XML servlet requests in the UAT and Production environments for ONESOURCE Indirect Tax Determination services across the EMEA and AMER regions. . The issue is already mitigated now.

We sincerely apologize for any inconvenience and appreciate your understanding and patience during the incident.

Further details will be provided in the formal RCA. If you have any questions or require further assistance, please contact Customer Support.
Jul 24, 12:34 CDT

Update - Dear Customers,

We would like to inform you that we are currently experiencing intermittent tax calculation failures for XML servlet requests in the AMER, EMEA UAT and Production environments.. Technical teams are currently working on it with high priority to restore the services. More details to follow soon.

Thank you for your understanding and patience
Jul 24, 11:00 CDT

Investigating - Dear Customers,

We would like to inform you that we are currently experiencing intermittent tax calculation failures for XML servlet requests in the AMER UAT and Production environments. Technical teams are currently working on it with high priority to restore the services. More details to follow soon.

Thank you for your understanding and patience
Jul 24, 10:44 CDT

ONESOURCE Determination – Configuration API Version 2026.04 - Production Release Information (AMERS Region)

Completed - The scheduled maintenance has been completed.
Jul 24, 11:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 24, 04:02 CDT

Scheduled - ONESOURCE Determination – Configuration API Version 2026.04 is being deployed in the AMERS Production environment. No downtime is expected during this deployment window.
Jul 10, 16:38 CDT

ONESOURCE Determination Anywhere – Version 2026.04 Release Information (PROD environment)

Completed - The scheduled maintenance has been completed.
Jul 24, 10:01 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 24, 04:00 CDT

Scheduled - ONESOURCE Determination Anywhere – Version 2026.04 is being deployed in the PROD environment on July 24, 2026. Your access to the tax calculation services and the application will not be interrupted.
Jun 29, 16:00 CDT

ONESOURCE Determination Enterprise Cloud– Version 2026.04 Release Information (PROD AMER environment)

Completed - The scheduled maintenance has been completed.
Jul 24, 10:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 24, 04:01 CDT

Scheduled - ONESOURCE Determination Enterprise Cloud– Version 2026.04 is being deployed in the PROD AMER environment on July 24, 2026. Your access to the tax calculation services and the application will not be interrupted.
Jun 29, 16:00 CDT

OSPI Platform – AMER Major release for July 2026

Completed - The scheduled maintenance has been completed.
Jul 24, 06:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 24, 00:00 CDT

ONESOURCE API Administration UI July 2026 release – AMER

Completed - The scheduled maintenance has been completed.
Jul 24, 05:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 24, 00:01 CDT

Scheduled - ONESOURCE API Administration will undergo scheduled maintenance to enhance system performance, reliability, and UI features. Some services may be temporarily affected; please try again later if you encounter issues. We apologize for any inconvenience and appreciate your patience. For urgent assistance during this period, contact our support team. Thank you for your cooperation. For more on API Administration, see the Guide.
Jul 10, 10:03 CDT

Delay in Data for reports and analytics service in AMER PROD

Resolved - This incident has been resolved.
Jul 24, 04:01 CDT

Update - Reports and Analytics Service in AMER PROD is currently experiencing delay of around 8 hours. We are working on the data catch up. Will notify once complete.
Jul 23, 21:20 CDT

Investigating - Reports and Analytics Service in AMER PROD is currently experiencing delay of around 11 hours. We are working on the data catch up. Will notify once complete.
Jul 23, 14:39 CDT

ONESOURCE Corporate Tax - United Kingdom - Template Release Announcement

Completed - The scheduled maintenance has been completed.
Jul 24, 03:30 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 23, 19:30 CDT

Scheduled - The updated FY24 and FY25 templates, along with the new FY26 templates, will be available from 24 July 2026.

FY24:
• United Kingdom Corporate Tax v1.411
• United Kingdom Corporate Tax - Life v1.105
• United Kingdom Corporate Tax - Group v1.086
• United Kingdom Corporate Tax - Non-OCT v1.013

FY25:
• United Kingdom Corporate Tax v1.420
•United Kingdom Corporate Tax - Life v1.078
• United Kingdom Corporate Tax - Group v1.109
•United Kingdom Corporate Tax - Non-OCT v1.007

FY26:
• United Kingdom Corporate Tax v1.129
• United Kingdom Corporate Tax - Life v1.025
• United Kingdom Corporate Tax - Group v1.019
• United Kingdom Corporate Tax - Non-OCT v1.004

This template release does not require downtime. However, a separate scheduled platform maintenance activity is taking place during the same period and may affect product availability. Please refer to the published maintenance notification for details of any service interruption and plan accordingly.
Jul 20, 11:20 CDT

ONESOURCE Income Tax Maintenance

Completed - The scheduled maintenance has been completed.
Jul 24, 01:30 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 24, 00:00 CDT

Scheduled - ONESOURCE Income Tax will be undergoing maintenance on Friday, July 24th between 12:00am – 1:30am CT.
Jul 21, 17:06 CDT

Jul `23`, `2026`

ONESOURCE Corporate Tax NextGen [EMEA] - Release Announcement

Completed - The scheduled maintenance has been completed.
Jul 23, 23:30 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 23, 17:30 CDT

Scheduled - ONESOURCE Corporate Tax NextGen [EMEA] will be unavailable during the period specified below:
- Thursday, July 23rd 23:30 BST to Friday, July 24th 05:30 BST.

This downtime supports the latest product release (July 2026) and ongoing platform improvements. We will notify you of any changes at the earliest.
Jul 20, 05:57 CDT

ONESOURCE Data Query Maintenance

Completed - The scheduled maintenance has been completed.
Jul 23, 22:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 23, 19:01 CDT

Scheduled - ONESOURCE Data Query will be undergoing maintenance on Thursday, July 23rd between 7:00pm – 10:00pm CT.
Jul 21, 17:06 CDT

ONESOURCE API Administration UI July 2026 release – EMEA

Completed - The scheduled maintenance has been completed.
Jul 23, 21:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 23, 16:00 CDT

Intermittent Intermittent Failures and elevated latencies while making REST API calls in AMER and OCI PROD and UAT

Resolved - Dear Customers,

We experienced intermittent issues with the Tax Calculation REST API in the ONESOURCE Indirect Tax Determination service affecting the AMER AWS PROD, OCI PROD, and UAT environments between 2:56 PM CT and 5:38 PM CT on July 23, 2026. The issue has been mitigated now.

We apologize for any inconvenience and appreciate your understanding and patience.

Further details will be provided in the formal RCA. If you have any questions, please contact Customer Support.
Jul 23, 19:22 CDT

Update - We are currently experiencing intermittent issues with the Tax Calculation API feature with our ONESOURCE Indirect Tax Enterprise service. Our team is actively working to resolve this matter as quickly as possible. We apologize for any inconvenience and appreciate your understanding and patience.

Further updates will be provided here as soon as we have more information. If you have any questions, please contact Customer Support.
Jul 23, 16:16 CDT

Investigating - .
Jul 23, 16:13 CDT

OSPI Platform – EMEA Major release for July 2026

Completed - The scheduled maintenance has been completed.
Jul 23, 19:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 23, 13:00 CDT

Failures Experienced for Tax calculations in UAT AWS and OCI due to Scheduled Maintenance

Resolved - This incident has been resolved.
Jul 23, 14:38 CDT

Update - We are continuing to investigate this issue.
Jul 23, 00:02 CDT

Investigating - Dear Customers, We wanted to inform you that we have observed failures while accessing IDT Tax calculation service in UAT environment for Amer and EMEA regions in AWS and OCI between 22:15 CDT to 22:21 CDT on Jul 22, 2026. This was due to ongoing scheduled maintenance activity. Thank you for your understanding and patience
Jul 23, 00:02 CDT

ONESOURCE API Administration UI July 2026 release – APAC

Completed - The scheduled maintenance has been completed.
Jul 23, 12:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 23, 07:00 CDT

OSPI Platform – APAC Major release for July 2026

Completed - The scheduled maintenance has been completed.
Jul 23, 11:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 23, 05:00 CDT

ONESOURCE API Administration Backend Services July 2026 release in all Production regions

Completed - The scheduled maintenance has been completed.
Jul 23, 06:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 23, 01:00 CDT

Scheduled - ONESOURCE API Administration will be performing scheduled maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services may experience some issues. In such cases, we recommend trying after some time. We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team. Thank you for your cooperation.

To explore the capabilities of API Administration, please refer to the Guide.
Jul 10, 09:58 CDT

ONESOURCE API Administration Backend Services and UI July 2026 release in UAT.

Completed - The scheduled maintenance has been completed.
Jul 23, 03:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 22, 22:00 CDT

ONESOURCE GTM - Export/Import Management Partial Outage

Resolved - The issue has been resolved. We will continue to monitor for the next few hours.
Jul 23, 01:39 CDT

Update - Our team will be initiating the deployment of software changes to address the identified issue starting at 2:00 AM EST. During this time, customers may experience temporary degraded performance while accessing the website and executing backend tasks.
We apologize for any inconvenience and appreciate your understanding and patience.
Further updates will be provided here as soon as we have more information. If you have any questions, please contact Customer Support.
Jul 23, 00:55 CDT

Investigating - ONESOURCE GTM is currently experiencing an issue with the Shipment Processing feature with our Export/Import Management service, which is temporarily unavailable. Our team is actively working to resolve this matter as quickly as possible. We apologize for any inconvenience and appreciate your understanding and patience.
Further updates will be provided here as soon as we have more information. If you have any questions, please contact Customer Support.
Jul 22, 23:56 CDT

Jul `22`, `2026`

Delay in Data for reports and analytics service in AMER PROD

Resolved - This incident has been resolved.
Jul 22, 19:46 CDT

Investigating - Reports and Analytics Service in AMER PROD is currently experiencing delay of around 7 hours. We are working on the data catch up. Will notify once complete.
Jul 22, 16:32 CDT

Intermittent Failures and elevated latencies while making REST calls

Resolved - We experienced intermittent issues with the Tax Calculation REST API in the ONESOURCE Indirect Tax Determination service affecting the AMER AWS PROD, OCI PROD, and UAT environments between 2:18 PM CT and 5:34 PM CT on July 22, 2026.

The issue is mitigated now.

We apologize for any inconvenience and appreciate your understanding and patience.

Further details will be provided in the formal RCA. If you have any questions, please contact Customer Support.
Jul 22, 19:07 CDT

Investigating - We are currently experiencing an issue with the Tax calculation API feature with our ONESOURCE Indirect Tax Enterprise service, which is temporarily unavailable. Our team is actively working to resolve this matter as quickly as possible. We apologize for any inconvenience and appreciate your understanding and patience.

Further updates will be provided here as soon as we have more information. If you have any questions, please contact Customer Support.
Jul 22, 16:31 CDT

Delay in Data for reports and analytics service in AMER PROD

Resolved - This incident has been resolved.
Jul 22, 07:07 CDT

Update - Reports and Analytics Service in AMER PROD is currently experiencing delay of around 7 hours. We are working on the data catch up. Will notify once complete
Jul 22, 02:36 CDT

Update - Reports and Analytics Service in AMER PROD is currently experiencing delay of around 12 hours. We are working on the data catch up. Will notify once complete.
Jul 21, 18:59 CDT

Investigating - Reports and Analytics Service in AMER PROD is currently experiencing delay of around 6 hours. We are working on the data catch up. Will notify once complete.
Jul 21, 11:39 CDT

OSPI Platform – UAT Major release for July 2026

Completed - The scheduled maintenance has been completed.
Jul 22, 06:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 22, 00:00 CDT

Jul `21`, `2026`

ONESOURCE Determination Anywhere – Version 2026.04 Release Information (PROD MENA environment)

Completed - The scheduled maintenance has been completed.
Jul 21, 14:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 21, 08:00 CDT

Scheduled - ONESOURCE Determination Anywhere – Version 2026.04 is being deployed in the PROD environment on July 21, 2026. Your access to the tax calculation services and the application will not be interrupted.
Jun 29, 16:00 CDT

ONESOURCE Determination Enterprise Cloud– Version 2026.04 Release Information (PROD MENA environment)

Completed - The scheduled maintenance has been completed.
Jul 21, 12:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 21, 08:01 CDT

Scheduled - ONESOURCE Determination Enterprise Cloud– Version 2026.04 is being deployed in the PROD MENA environment on July 21, 2026. Your access to the tax calculation services and the application will not be interrupted.
Jun 29, 16:00 CDT

ONESOURCE Determination – Configuration API Version 2026.04 - Production Release Information (EMEA Region)

Completed - The scheduled maintenance has been completed.
Jul 21, 11:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 21, 04:00 CDT

Scheduled - ONESOURCE Determination – Configuration API Version 2026.04 is being deployed in the EMEA Production environment. No downtime is expected during this deployment window.
Jul 10, 16:38 CDT

ONESOURCE Determination Enterprise Cloud– Version 2026.04 Release Information (PROD EMEA environment)

Completed - The scheduled maintenance has been completed.
Jul 21, 08:01 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 21, 04:00 CDT

Scheduled - ONESOURCE Determination Enterprise Cloud– Version 2026.04 is being deployed in the PROD EMEA environment on July 21, 2026. Your access to the tax calculation services and the application will not be interrupted.
Jun 29, 16:00 CDT

UAT - ONESOURCE Platform Security Maintenance Application server patching for July 2026.

Completed - The scheduled maintenance has been completed.
Jul 21, 08:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 21, 00:00 CDT

Scheduled - ONESOURCE Platform will be undergoing maintenance in UAT on Tuesday, Jul 21, 00:00 AM - 8:00 AM CDT.
Users may experience degraded performance from 00:00 AM CDT to 00:30 AM CDT and 04:00 AM to 04:30 AM CDT only.
In case of any issues, we recommend the users to please retry.
We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Jul 3, 10:53 CDT

OSPI Platform – AMER User Administration Minor release for July 2026

Completed - The scheduled maintenance has been completed.
Jul 21, 06:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 21, 00:00 CDT

Scheduled - ONESOURCE Platform will be performing scheduled maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services, including authorization and administration, might experience degraded performance. In such cases, we recommend trying after some time. We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team. Thank you for your cooperation.
Jun 30, 07:20 CDT

Jul `20`, `2026`

OSPI Platform – EMEA User Administration Minor release for July 2026

Completed - The scheduled maintenance has been completed.
Jul 20, 19:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 20, 13:00 CDT

Scheduled - ONESOURCE Platform will be performing scheduled maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services, including authorization and administration, might experience degraded performance. In such cases, we recommend trying after some time. We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team. Thank you for your cooperation.
Jun 30, 07:20 CDT

OSPI Platform – APAC User Administration Minor release for July 2026

Completed - The scheduled maintenance has been completed.
Jul 20, 11:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 20, 05:00 CDT

Scheduled - ONESOURCE Platform will be performing scheduled maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services, including authorization and administration, might experience degraded performance. In such cases, we recommend trying after some time. We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team. Thank you for your cooperation.
Jun 30, 07:19 CDT

ONESOURCE Trust Tax System Maintenance Scheduled for July 17-19 (AMERS)

Completed - The scheduled maintenance has been completed.
Jul 20, 00:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 17, 18:00 CDT

Scheduled - Access to ONESOURCE Trust Tax and ONESOURCE Trust Tax Insight applications will be suspended from 6:00 P.M. (CT) on Friday, July 17, 2026, until 12:00 A.M. (CT) on Monday, July 20, 2026. We appreciate your understanding while we perform this necessary maintenance.
Jul 16, 10:20 CDT

Jul `19`, `2026`

ONESOURCE GTM – AWS Maintenance

Completed - The scheduled maintenance has been completed.
Jul 19, 17:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 19, 00:00 CDT

Scheduled - Thomson Reuters will be performing scheduled maintenance on Sunday, July 19th, 2026 beginning at 1 AM Eastern time and will conclude by Sunday, July 19th, 2026 at 6 PM Eastern time.
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Feb 25, 12:44 CST

Manutenção Programada (Todos os ambientes UAT/PROD)

Completed - The scheduled maintenance has been completed.
Jul 19, 10:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 18, 22:00 CDT

Scheduled - Informamos que será realizada uma manutenção programada nos ambientes ONESOURCE Tax One PROD e UAT, com duração estimada de 12 horas (exceto PROD01).
Ambientes impactados: PROD e UAT
Durante esse período, os ambientes poderão ficar indisponíveis ou apresentar instabilidade.
Para identificar o ambiente em que sua instalação está alocada acesse.
Observação: exemplo considere OSMastersaf02 = PROD02.
Jul 16, 08:58 CDT

AMER - ONESOURCE Platform Security Maintenance Database server patching for Jul 2026

Completed - The scheduled maintenance has been completed.
Jul 19, 07:30 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 19, 01:30 CDT

Scheduled - ONESOURCE Platform will be undergoing maintenance in AMER on Sunday, July 19, 1:30 AM – 7:30 AM CDT.
ONESOURCE Platform will be unavailable from Sunday, July 19, 4:00 AM CDT to 4:20 AM CDT.
In case of any issues, we recommend the users to please retry.
We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Jul 3, 10:59 CDT

ONESOURCE Corporate Tax [EMEA] - Downtime notification

Completed - The scheduled maintenance has been completed.
Jul 19, 02:01 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 18, 20:01 CDT

Scheduled - To help maintain the security and reliability of the ONESOURCE Platform, we will be performing scheduled maintenance during the below timings. This includes routine database server patching activities.

The maintenance activity window is scheduled for Sunday, July 19th 02:00 BST to 08:00 BST.
Within this window, the expected downtime is up to 15 minutes between 04:00 BST to 04:15 BST, during which ONESOURCE Corporate Tax will be unavailable.

This is an infrastructure-only maintenance activity, and there are no changes to product functionality expected.

Thank you for your understanding and continued partnership.
Jul 9, 08:25 CDT

EMEA - ONESOURCE Platform Security Maintenance Database server patching for July 2026

Completed - The scheduled maintenance has been completed.
Jul 19, 02:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 18, 20:01 CDT

Scheduled - ONESOURCE Platform will be undergoing maintenance in EMEA on Saturday, July 18, 8:00 PM – Sunday, July 19, 2:00 AM CDT.
ONESOURCE Platform will be unavailable from Saturday July 18, 10:00 PM CDT to 10:15 PM CDT.
In case of any issues, we recommend the users to please retry.
We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Jul 3, 10:58 CDT

Scheduled Maintenance

Reports and Analytics release Version 2026.07 in EMEA UAT region Aug 4, 2026 08:00-15:00 CDT

Reports and Analytics release Version 2026.07 in AMER UAT region Aug 5, 2026 06:00-13:00 CDT

ONESOURCE Indirect Compliance Maintenance Event (R2026.08) planned on Thursday 06th August 2026 Aug 6, 2026 08:00-12:00 CDT

ONESOURCE Indirect Compliance Maintenance Event (R2026.08) planned on Thursday 06th August 2026 Aug 6, 2026 19:30-23:30 CDT

ONESOURCE Income Tax Maintenance Aug 7, 2026 00:00-01:30 CDT

2026 Disaster Recovery Testing for ONESOURCE Determination Enterprise Cloud (OCI MENA) Aug 7, 2026 08:30-14:30 CDT

ONESOURCE Income Tax Maintenance Aug 9, 2026 00:00-04:00 CDT

ONESOURCE GTM – AWS Maintenance Aug 9, 2026 00:00-17:00 CDT

ONESOURCE Tax Information Release OTIR Release 26.03 11th August 2026 (AMERS) Aug 11, 2026 19:00 - Aug 12, 2026 06:00 CDT

OSPI Platform – UAT Minor release for August 2026 Aug 12, 2026 00:00-06:00 CDT

Reports and Analytics release Version 2026.07 in EMEA PROD region Aug 12, 2026 08:00-15:00 CDT

OSPI Platform – APAC Minor release for August 2026 Aug 13, 2026 05:00-11:00 CDT

Reports and Analytics release Version 2026.07 in AMER PROD region Aug 13, 2026 06:00-13:00 CDT

OSPI Platform – EMEA Minor release for August 2026 Aug 13, 2026 13:00-19:00 CDT

OSPI Platform – AMER Minor release for August 2026 Aug 14, 2026 00:00-06:00 CDT

OSPI Platform – UAT User Administration release for August 2026 Aug 19, 2026 00:00-06:00 CDT

OSPI Platform – APAC User Administration release for August 2026 Aug 20, 2026 05:00-11:00 CDT

OSPI Platform – EMEA User Administration release for August 2026 Aug 20, 2026 13:00-19:00 CDT

OSPI Platform – AMER User Administration release for August 2026 Aug 21, 2026 00:00-06:00 CDT

2026 Disaster Recovery Testing for ONESOURCE Determination Enterprise Cloud and Determination Anywhere (AWS AMER) Aug 22, 2026 00:00-06:00 CDT

2026 Disaster Recovery Testing for ONESOURCE Determination Enterprise Cloud (AWS EMEA) Aug 22, 2026 00:00-06:00 CDT

2026 Disaster Recovery Testing for ONESOURCE Determination Enterprise Cloud and Determination Anywhere (OCI AMER) Aug 22, 2026 00:01-06:01 CDT

ONESOURCE Tax Information Reporting System Maintenance 22nd August 2026 (AMERS) Aug 22, 2026 22:00 - Aug 23, 2026 07:00 CDT

ONESOURCE GTM – AWS Maintenance Aug 23, 2026 00:00-17:00 CDT

OSPI Platform – UAT Major release for August 2026 Aug 24, 2026 00:00-06:00 CDT

OSPI Platform – APAC Major release for August 2026 Aug 25, 2026 05:00-11:00 CDT

OSPI Platform – EMEA Major release for August 2026 Aug 25, 2026 13:00-19:00 CDT

OSPI Platform – AMER Major release for August 2026 Aug 26, 2026 00:00-06:00 CDT

ONESOURCE GTM – AWS Maintenance Sep 6, 2026 00:00-17:00 CDT

ONESOURCE GTM – AWS Maintenance Sep 20, 2026 00:00-17:00 CDT

ONESOURCE Tax Information Release OTIR Release 26.04 20th October 2026 (AMERS) Oct 20, 2026 19:00 - Oct 21, 2026 06:00 CDT

ONESOURCE Tax Information Reporting System Maintenance 24th October 2026 (AMERS) Oct 24, 2026 22:00 - Oct 25, 2026 07:00 CDT

ONESOURCE Tax Information Reporting System Maintenance 21st November 2026 (AMERS) Nov 21, 2026 22:00 - Nov 22, 2026 07:00 CST

ONESOURCE Tax Information Release OTIR Release 26.05 1st December 2026 (AMERS) Dec 1, 2026 19:00 - Dec 2, 2026 06:00 CST

ONESOURCE Tax Information Release OTIR Release 26.06 22nd December 2026 (AMERS) Dec 22, 2026 19:00 - Dec 23, 2026 06:00 CST

ONESOURCE Tax Information Reporting System Maintenance 26th December 2026 (AMERS) Dec 26, 2026 22:00 - Dec 27, 2026 07:00 CST

ONESOURCE Tax Information Release OTIR Release 26.07 16th February 2027 (AMERS) Feb 16, 2027 19:00 - Feb 17, 2027 06:00 CST

Past Incidents

Aug 2, 2026

Aug 1, 2026

Jul 31, 2026

Jul 30, 2026

Jul 29, 2026

Jul 28, 2026

Jul 27, 2026

Jul 26, 2026

Jul 25, 2026

Jul 24, 2026

Jul 23, 2026

Jul 22, 2026

Jul 21, 2026

Jul 20, 2026

Jul 19, 2026

Reports and Analytics release Version 2026.07 in EMEA UAT region Aug `4`, `2026` `08:00`-`15:00` CDT

Reports and Analytics release Version 2026.07 in AMER UAT region Aug `5`, `2026` `06:00`-`13:00` CDT

ONESOURCE Indirect Compliance Maintenance Event (R2026.08) planned on Thursday 06th August 2026 Aug `6`, `2026` `08:00`-`12:00` CDT

ONESOURCE Indirect Compliance Maintenance Event (R2026.08) planned on Thursday 06th August 2026 Aug `6`, `2026` `19:30`-`23:30` CDT

ONESOURCE Income Tax Maintenance Aug `7`, `2026` `00:00`-`01:30` CDT

2026 Disaster Recovery Testing for ONESOURCE Determination Enterprise Cloud (OCI MENA) Aug `7`, `2026` `08:30`-`14:30` CDT

ONESOURCE Income Tax Maintenance Aug `9`, `2026` `00:00`-`04:00` CDT

ONESOURCE GTM – AWS Maintenance Aug `9`, `2026` `00:00`-`17:00` CDT

ONESOURCE Tax Information Release OTIR Release 26.03 11th August 2026 (AMERS) Aug `11`, `2026` `19:00` - Aug `12`, `2026` `06:00` CDT

OSPI Platform – UAT Minor release for August 2026 Aug `12`, `2026` `00:00`-`06:00` CDT

Reports and Analytics release Version 2026.07 in EMEA PROD region Aug `12`, `2026` `08:00`-`15:00` CDT

OSPI Platform – APAC Minor release for August 2026 Aug `13`, `2026` `05:00`-`11:00` CDT

Reports and Analytics release Version 2026.07 in AMER PROD region Aug `13`, `2026` `06:00`-`13:00` CDT

OSPI Platform – EMEA Minor release for August 2026 Aug `13`, `2026` `13:00`-`19:00` CDT

OSPI Platform – AMER Minor release for August 2026 Aug `14`, `2026` `00:00`-`06:00` CDT

OSPI Platform – UAT User Administration release for August 2026 Aug `19`, `2026` `00:00`-`06:00` CDT

OSPI Platform – APAC User Administration release for August 2026 Aug `20`, `2026` `05:00`-`11:00` CDT

OSPI Platform – EMEA User Administration release for August 2026 Aug `20`, `2026` `13:00`-`19:00` CDT

OSPI Platform – AMER User Administration release for August 2026 Aug `21`, `2026` `00:00`-`06:00` CDT

2026 Disaster Recovery Testing for ONESOURCE Determination Enterprise Cloud and Determination Anywhere (AWS AMER) Aug `22`, `2026` `00:00`-`06:00` CDT

2026 Disaster Recovery Testing for ONESOURCE Determination Enterprise Cloud (AWS EMEA) Aug `22`, `2026` `00:00`-`06:00` CDT

2026 Disaster Recovery Testing for ONESOURCE Determination Enterprise Cloud and Determination Anywhere (OCI AMER) Aug `22`, `2026` `00:01`-`06:01` CDT

ONESOURCE Tax Information Reporting System Maintenance 22nd August 2026 (AMERS) Aug `22`, `2026` `22:00` - Aug `23`, `2026` `07:00` CDT

ONESOURCE GTM – AWS Maintenance Aug `23`, `2026` `00:00`-`17:00` CDT

OSPI Platform – UAT Major release for August 2026 Aug `24`, `2026` `00:00`-`06:00` CDT

OSPI Platform – APAC Major release for August 2026 Aug `25`, `2026` `05:00`-`11:00` CDT

OSPI Platform – EMEA Major release for August 2026 Aug `25`, `2026` `13:00`-`19:00` CDT

OSPI Platform – AMER Major release for August 2026 Aug `26`, `2026` `00:00`-`06:00` CDT

ONESOURCE GTM – AWS Maintenance Sep `6`, `2026` `00:00`-`17:00` CDT

ONESOURCE GTM – AWS Maintenance Sep `20`, `2026` `00:00`-`17:00` CDT

ONESOURCE Tax Information Release OTIR Release 26.04 20th October 2026 (AMERS) Oct `20`, `2026` `19:00` - Oct `21`, `2026` `06:00` CDT

ONESOURCE Tax Information Reporting System Maintenance 24th October 2026 (AMERS) Oct `24`, `2026` `22:00` - Oct `25`, `2026` `07:00` CDT

ONESOURCE Tax Information Reporting System Maintenance 21st November 2026 (AMERS) Nov `21`, `2026` `22:00` - Nov `22`, `2026` `07:00` CST

ONESOURCE Tax Information Release OTIR Release 26.05 1st December 2026 (AMERS) Dec `1`, `2026` `19:00` - Dec `2`, `2026` `06:00` CST

ONESOURCE Tax Information Release OTIR Release 26.06 22nd December 2026 (AMERS) Dec `22`, `2026` `19:00` - Dec `23`, `2026` `06:00` CST

ONESOURCE Tax Information Reporting System Maintenance 26th December 2026 (AMERS) Dec `26`, `2026` `22:00` - Dec `27`, `2026` `07:00` CST

ONESOURCE Tax Information Release OTIR Release 26.07 16th February 2027 (AMERS) Feb `16`, `2027` `19:00` - Feb `17`, `2027` `06:00` CST

Aug `2`, `2026`

Aug `1`, `2026`

Jul `31`, `2026`

Jul `30`, `2026`

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Jul `28`, `2026`

Jul `27`, `2026`

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Jul `19`, `2026`