Thomson Reuters Corporates Status

ONESOURCE Tax Information Reporting System Maintenance 22nd November 2025 (AMERS)

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 22, 2025 - 22:00 CST

Scheduled - ONESOURCE Tax Information Reporting will be unavailable from 10:00 P.M. (CT) on 22nd November 2025 until 06:00 A.M. (CT) on 23rd November 2025 for scheduled maintenance.
Nov 22, 2025 22:00 - Nov 23, 2025 07:00 CST

Scheduled System Maintenance

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 22, 2025 - 11:00 CST

Scheduled - Tracker will be undergoing maintenance and unavailable from Saturday 11/22/2025, 9:00 AM PST to Sunday 11/23/2025, 12:00 AM PST
Nov 22, 2025 11:00 - Nov 23, 2025 02:00 CST

Important Notice: The Legal Solutions Status Has Moved

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 20, 2025 - 23:50 CST

Scheduled - We've migrated Legal Solutions to a new status page. Please visit https://legal-status.thomsonreuters.com for the latest product updates and performance notifications. Update your bookmarks and notification preferences on the new page to continue receiving alerts.

We apologize for any inconvenience and appreciate your understanding during this transition.
Nov 20, 2025 23:50 - Dec 20, 2025 23:50 CST

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

WorkFlow Tools Operational

AMERS Calendar Operational

AMERS Calendar Classic Operational

AMERS FileRoom Operational

AMERS WorkFlow Manager Operational

APAC Calendar Operational

APAC Calendar Classic Operational

APAC FileRoom Operational

APAC WorkFlow Manager Operational

EMEA Calendar Operational

EMEA Calendar Classic Operational

EMEA FileRoom Operational

EMEA WorkFlow Manager 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 Operational

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 Operational

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 Anywhere (AWS AMER) Operational

ONESOURCE Determination Anywhere (OCI AMER) Operational

Configuration API (AWS AMER) Operational

Configuration API (AWS EMEA) Operational

Configuration API (OCI AMER) 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 Under Maintenance

AMERS NRA - FNIS & Users Website Operational

AMERS Tax Information Reporting Under Maintenance

AMERS Trust Tax Operational

AMERS Trust Tax Insight Operational

Legal Solutions Under Maintenance

AMERS LEGAL ONE Operational

Legal Tracker - US Under Maintenance

Legal Tracker - AUS Under Maintenance

Legal Tracker - UK Under Maintenance

Legal Tracker - GER Under Maintenance

Legal Tracker - CAN Under Maintenance

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

Tax One - Application [AMERS] Operational

Tax One - Application [UAT AMERS] Operational

Sending and Receiving Files [AMERS] Operational

Sending and Receiving Files [UAT AMERS] Operational

File/Email Processing [AMERS] Operational

File/Email Processing [UAT AMERS] Operational

ECF/REINF (messaging/integration) [AMERS] Operational

ECF/REINF (messaging/integration) [UAT AMERS] Operational

Tax Automation [AMERS] Operational

Tax Automation [UAT AMERS] Operational

OBI [AMERS] Operational

OBI [UAT AMERS] Operational

Tax One - Application [EMEA] Operational

Tax One - Application [UAT EMEA] Operational

Sending and Receiving Files [EMEA] Operational

Sending and Receiving Files [UAT EMEA] Operational

File/Email Processing [EMEA] Operational

File/Email Processing [UAT EMEA] Operational

ECF/REINF (messaging/integration) [EMEA] Operational

ECF/REINF (messaging/integration) [UAT EMEA] Operational

Tax Automation [EMEA] Operational

Tax Automation [UAT EMEA] Operational

OBI [EMEA] Operational

OBI [UAT EMEA] 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

ONESOURCE Statutory Reporting - Web [EMEA] Nov `23`, `2025` `16:30` - Nov `24`, `2025` `00:30` CST

ONESOURCE Statutory Reporting - Web [EMEA] will be undergoing scheduled maintenance during Nov 23, 2025 22:30 GMT to Nov 24, 2025 06:30 GMT.
Posted on Nov 20, 2025 - 10:31 CST

OSPI Platform – AMER Emergency Maintenance for November 2025 Nov `24`, `2025` `00:00`-`06:00` CST

ONESOURCE Platform will be performing emergency 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.
Posted on Nov 20, 2025 - 15:01 CST

ONESOURCE Statutory Reporting - Web [AMERS] Nov `25`, `2025` `16:30` - Nov `26`, `2025` `00:30` CST

ONESOURCE Statutory Reporting - Web [AMERS] will be undergoing scheduled maintenance during Nov 25, 2025 17:30 EST to Nov 26, 2025 01:30 EST.
Posted on Nov 21, 2025 - 04:27 CST

ONESOURCE Tax Information Release OTIR Release 25.05 2nd December 2025 (AMERS) Dec `2`, `2025` `19:00` - Dec `3`, `2025` `06:00` CST

ONESOURCE Tax Information Reporting Release 25.05 will be installed from 7:00 P.M. (CT) on 2nd December 2025 until 06:00 A.M. (CT) on 3d December 2025. System availability may be affected during release time.
Posted on Aug 20, 2024 - 10:05 CDT

ONESOURCE Indirect Compliance Maintenance Event (R2025.12) planned on Thursday 04th December 2025 Dec `3`, `2025` `18:30`-`22:30` CST

Database maintenance event in progress to deploy R2025.12

There will be limited service during this deployment.
Posted on Nov 21, 2025 - 00:32 CST

ONESOURCE Indirect Compliance Maintenance Event (R2025.12) planned on Thursday 04th December 2025 Dec `4`, `2025` `07:00`-`11:00` CST

Database maintenance event in progress to deploy R2025.12

There will be limited service during this deployment.
Posted on Nov 21, 2025 - 00:29 CST

ONESOURCE GTM – AWS Maintenance Dec `7`, `2025` `00:00`-`17:00` CST

Thomson Reuters will be performing scheduled maintenance on Sunday, December 7th, 2025 beginning at 1 AM Eastern time and will conclude by Sunday, December 7th, 2025 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 Nov 19, 2025 - 10:41 CST

ONESOURCE GTM – AWS Maintenance Dec `7`, `2025` `00:00`-`17:00` CST

Scheduled System Maintenance Dec `20`, `2025` `11:00`-`19:00` CST

Tracker will be undergoing maintenance and unavailable on Saturday 12/20/2025 , from 9:00 AM PST to 5:00 PM PST.
Posted on Jan 23, 2025 - 12:06 CST

ONESOURCE GTM – AWS Maintenance Dec `21`, `2025` `00:00`-`17:00` CST

Thomson Reuters will be performing scheduled maintenance on Sunday, December 21th, 2025 beginning at 1 AM Eastern time and will conclude by Sunday, December 21th, 2025 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 Nov 19, 2025 - 17:35 CST

ONESOURCE GTM – AWS Maintenance Dec `21`, `2025` `00:00`-`17:00` CST

ONESOURCE Tax Information Reporting System Maintenance 27th December 2025 (AMERS) Dec `27`, `2025` `22:00` - Dec `28`, `2025` `07:00` CST

ONESOURCE Tax Information Reporting will be unavailable from 10:00 P.M. (CT) on 27th December 2025 until 06:00 A.M. (CT) on 28th December 2025 for scheduled maintenance.
Posted on Aug 20, 2024 - 09:57 CDT

ONESOURCE Tax Information Release OTIR Release 25.06 30th December 2025 (AMERS) Dec `30`, `2025` `19:00` - Dec `31`, `2025` `06:00` CST

ONESOURCE Tax Information Reporting Release 25.06 will be installed from 7:00 P.M. (CT) on 30th December 2025 until 06:00 A.M. (CT) on 31st December 2025. System availability and API's may be affected during release time.
Posted on Aug 20, 2024 - 10:07 CDT

ONESOURCE Tax Information Release OTIR Release 25.07 17th February 2026 (AMERS) Feb `17`, `2026` `19:00` - Feb `18`, `2026` `06:00` CST

ONESOURCE Tax Information Reporting Release 25.07 will be installed from 7:00 P.M. (CT) on 17th February 2026 until 06:00 A.M. (CT) on 18th February 2026. System availability and API's may be affected during release time.
Posted on Jan 21, 2025 - 04:31 CST

ONESOURCE Tax Information Reporting System Maintenance 21st March 2026 (AMERS) Mar `21`, `2026` `22:00` - Mar `22`, `2026` `07:00` CDT

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

ONESOURCE Tax Information Release OTIR Release 26.01 21st April 2026 (AMERS) Apr `21`, `2026` `19:00` - Apr `22`, `2026` `06:00` CDT

ONESOURCE Tax Information Reporting Release 26.01 will be installed from 7:00 P.M. (CT) on 21st April 2026 until 06:00 A.M. (CT) on 22nd April 2026. System availability and API's may be affected during release time.
Posted on Nov 20, 2025 - 05:23 CST

ONESOURCE Tax Information Reporting System Maintenance 25th April 2026 (AMERS) Apr `25`, `2026` `22:00` - Apr `26`, `2026` `07:00` CDT

ONESOURCE Tax Information Reporting and API's will be unavailable from 10:00 P.M. (CT) on 25th April until 07:00 A.M. (CT) on 26th April for scheduled maintenance.
Posted on Nov 20, 2025 - 05:24 CST

ONESOURCE Tax Information Reporting System Maintenance 23rd May 2026 (AMERS) May `23`, `2026` `22:00` - May `24`, `2026` `07:00` CDT

ONESOURCE Tax Information Reporting and API's will be unavailable from 10:00 P.M. (CT) on 23rd May  2026 until 07:00 A.M. (CT) on 24th May 2026 for scheduled maintenance.
Posted on Nov 20, 2025 - 05:25 CST

ONESOURCE Tax Information Release OTIR Release 26.02 16th June 2026 (AMERS) Jun `16`, `2026` `19:00` - Jun `17`, `2026` `06:00` CDT

ONESOURCE Tax Information Reporting Release 26.02 will be installed from 7:00 P.M. (CT) on 16th June 2026 until 06:00 A.M. (CT) on 17th June 2026. System availability and API's may be affected during release time.
Posted on Nov 20, 2025 - 05:26 CST

ONESOURCE Tax Information Reporting System Maintenance 27th June 2026 (AMERS) Jun `27`, `2026` `22:00` - Jun `28`, `2026` `07:00` CDT

ONESOURCE Tax Information Reporting and API's will be unavailable from 10:00 P.M. (CT) on 27th June 2026 until 07:00 A.M. (CT) on 28th June  2026 for scheduled maintenance.
Posted on Nov 20, 2025 - 05:46 CST

ONESOURCE Tax Information Reporting System Maintenance 25th July 2026 (AMERS) Jul `25`, `2026` `22:00` - Jul `26`, `2026` `07:00` CDT

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.
Posted on Nov 20, 2025 - 05:32 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

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 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

Nov 23, 2025

No incidents reported today.

Nov 22, 2025

ONESOURCE Tax Provision

Completed - The scheduled maintenance has been completed.
Nov 22, 06:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 21, 20:00 CST

Scheduled - ONESOURCE Tax Provision will be undergoing maintenance activities on November 21-22, 2025.
Nov 18, 14:52 CST

DataFlow NextGen– AMER Production Emergency Database Maintenance for November 2025

Completed - The scheduled maintenance has been completed.
Nov 22, 03:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 21, 21:01 CST

Scheduled - DataFlow NextGen will be undergoing database maintenance in AMER, on Friday, Nov 21st, 09:00 PM - 03:00 AM CST
Nov 21, 17:57 CST

Delay in Data for reports and analytics service in AMER PROD

Resolved - This incident has been resolved.
Nov 22, 01:03 CST

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.
Nov 21, 15:49 CST

Update - Reports and Analytics Service in AMER PROD is currently experiencing delay of around 16 hours. We are working on the data catch up. Will notify once complete.
Nov 21, 15:11 CST

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.
Nov 21, 06:05 CST

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.
Nov 21, 00:19 CST

Nov 21, 2025

ONESOURCE Determination Enterprise Cloud: Urgent Database Maintenance in AMERS PROD Environment

Completed - The scheduled maintenance has been completed.
Nov 21, 21:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 21, 18:00 CST

Scheduled - ONESOURCE Determination Enterprise Cloud in the AMER PROD environment is undergoing database maintenance. UI access will be temporarily unavailable. Tax calculation services will not be interrupted.
Nov 21, 15:49 CST

ONESOURCE Statutory Reporting - Web [APAC]

Completed - The scheduled maintenance has been completed.
Nov 21, 18:07 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 21, 12:07 CST

Scheduled - ONESOURCE Statutory Reporting - Web [APAC] is undergoing scheduled maintenance
Nov 21, 12:06 CST

Gosystem Tax RS users not able to open returns or not able to login to the applications.

Resolved - This incident has been resolved.
Nov 21, 17:55 CST

Update - This issue is mitigated, and we are closely monitoring.
Nov 21, 11:30 CST

Update - Intermittent Issues: We are currently experiencing intermittent issues with logging in and also not being able to get to return screen feature with our Gosystem Tax RS service.
Nov 21, 10:34 CST

Update - This issue is mitigated, and we are closely monitoring.
Nov 21, 09:55 CST

Monitoring - This issue is mitigated, and we are closely monitoring.
Nov 21, 09:26 CST

Investigating - Intermittent Issues: We are currently experiencing intermittent issues with logging in and also not being able to get to return screen feature with our Gosystem Tax RS service.
Nov 21, 08:48 CST

ONESOURCE Statutory Reporting - Web [APAC]

Completed - The scheduled maintenance has been completed.
Nov 21, 12:00 CST

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

Scheduled - ONESOURCE Statutory Reporting - Web [APAC] will be undergoing scheduled maintenance during Nov 21, 2025 21:00 AEDT to Nov 22, 2025 05:00 AEDT.
Nov 20, 06:22 CST

ONESOURCE Tax Information Reporting System Maintenance 27th June 2026 (AMERS)

Completed - The scheduled maintenance has been completed.
Nov 21, 07:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 20, 22:00 CST

Scheduled - ONESOURCE Tax Information Reporting and API's will be unavailable from 10:00 P.M. (CT) on 27th June  2026 until 07:00 A.M. (CT) on 28th June 2026 for scheduled maintenance.
Nov 20, 05:31 CST

ONESOURCE Tax Information Reporting System Maintenance 27th June 2026 (AMERS)

Completed - The scheduled maintenance has been completed.
Nov 21, 07:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 20, 22:01 CST

Scheduled - ONESOURCE Tax Information Reporting and API's will be unavailable from 10:00 P.M. (CT) on 27th June 2026 until 07:00 A.M. (CT) on 28th June 2026 for scheduled maintenance.
Nov 20, 05:27 CST

ONESOURCE Tax Information Release OTIR Release 26.07 16th February 2027 (AMERS)

Completed - The scheduled maintenance has been completed.
Nov 21, 06:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 20, 19:01 CST

Scheduled - 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.
Nov 20, 05:41 CST

ONESOURCE Income Tax

Completed - The scheduled maintenance has been completed.
Nov 21, 06:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 20, 20:00 CST

Scheduled - ONESOURCE Income Tax Release 2025.005 will be installed from 8:00 PM (CT) on Thursday, November 20th, 2025 until 6:00 AM (CT) on Friday, November 21st, 2025. ONESOURCE Income Tax will be unavailable during this time
Nov 14, 14:14 CST

ONESOURCE Tax Provision [AMERS]

Completed - The scheduled maintenance has been completed.
Nov 21, 05:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 20, 23:00 CST

Scheduled - ONESOURCE Tax Provision will be undergoing release and maintenance activities on November 20-21, 2025.
Nov 14, 16:21 CST

ONESOURCE Workpapers [AMERS]

Completed - The scheduled maintenance has been completed.
Nov 21, 03:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 20, 23:01 CST

Scheduled - ONESOURCE Workpapers will be unavailable from Nov 20, 2025, 11:00 P.M. (CT) until Nov 20, 2025 3:00 A.M. (CT) for scheduled maintenance.
Nov 18, 11:59 CST

Nov 20, 2025

OSPI Platform – EMEA Emergency Maintenance for November 2025

Completed - The scheduled maintenance has been completed.
Nov 20, 21:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 20, 15:00 CST

Scheduled - ONESOURCE Platform will be performing emergency 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.
Nov 20, 14:58 CST

Delay in Data for reports and analytics service in AMER PROD

Resolved - This incident has been resolved.
Nov 20, 20:12 CST

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.
Nov 20, 20:07 CST

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.
Nov 20, 13:10 CST

ONESOURCE Data Query

Completed - The scheduled maintenance has been completed.
Nov 20, 20:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 20, 15:01 CST

Scheduled - ONESOURCE Data Query will be undergoing maintenance on Thursday, Nov 20th 3:00pm – 8:00pm CT.
Nov 20, 08:03 CST

ONESOURCE Tax Provision [EMEA]

Completed - The scheduled maintenance has been completed.
Nov 20, 19:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 20, 15:00 CST

Scheduled - ONESOURCE Tax Provision will be undergoing release and maintenance activities on November 20, 2025.
Nov 14, 16:21 CST

ONESOURCE Workpapers [EMEA]

Completed - The scheduled maintenance has been completed.
Nov 20, 17:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 20, 15:01 CST

Scheduled - ONESOURCE Workpapers will be unavailable from Nov 20, 2025, 3:00 P.M. (CT) until Nov 20, 2025 5:00 P.M. (CT) for scheduled maintenance.
Nov 18, 11:59 CST

Reports and Analytics release Version 2025.11 in AMER PROD region

Completed - The scheduled maintenance has been completed.
Nov 20, 14:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 20, 07:00 CST

Scheduled - The deployment of Reports and Analytics release version 2025.11 in the AMER PROD environment is scheduled for 07:00 AM to 2:00 PM CDT. Rest assured that your access to the user interface and tax calculation services will not be affected during this maintenance period.
Nov 19, 17:09 CST

ONESOURCE Determination Anywhere – Version 2025.06 Release Information (PROD environment)

Completed - The scheduled maintenance has been completed.
Nov 20, 13:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 20, 07:01 CST

Scheduled - ONESOURCE Determination Anywhere – Version 2025.06 is being deployed in the PROD environment on November 20, 2025. Your access to the tax calculation services and the application will not be interrupted.
Nov 20, 00:22 CST

ONESOURCE Workpapers [APAC]

Completed - The scheduled maintenance has been completed.
Nov 20, 12:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 20, 09:00 CST

Scheduled - ONESOURCE Workpapers will be unavailable from Nov 20, 2025, 9:00 A.M. (CT) until Nov 20, 2025 12:00 P.M. (CT) for scheduled maintenance.
Nov 18, 11:59 CST

ONESOURCE Determination Enterprise Cloud– Version 2025.06 Release Information (PROD AMER environment)

Completed - The scheduled maintenance has been completed.
Nov 20, 11:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 20, 05:01 CST

Scheduled - ONESOURCE Determination Enterprise Cloud– Version 2025.06 is being deployed in the PROD AMER environment on November 20, 2025. Your access to the tax calculation services and the application will not be interrupted.
Nov 20, 00:19 CST

Reports and Analytics release Version 2025.11 in EMEA PROD region

Completed - The scheduled maintenance has been completed.
Nov 20, 10:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 20, 03:01 CST

Scheduled - The deployment of Reports and Analytics release version 2025.11 in the EMEA PROD environment is scheduled for 03:00 AM to 10:00 AM CDT. Rest assured that your access to the user interface and tax calculation services will not be affected during this maintenance period.
Nov 19, 17:09 CST

ONESOURCE Determination Enterprise Cloud– Version 2025.06 Release Information (PROD EMEA environment)

Completed - The scheduled maintenance has been completed.
Nov 20, 07:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 20, 03:00 CST

Scheduled - ONESOURCE Determination Enterprise Cloud– Version 2025.06 is being deployed in the PROD EMEA environment on November 20, 2025. Your access to the tax calculation services and the application will not be interrupted.
Nov 20, 00:16 CST

ONESOURCE API Administration November 2025 release – AMER

Completed - The scheduled maintenance has been completed.
Nov 20, 05:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 20, 00:00 CST

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.
Nov 11, 09:28 CST

Nov 19, 2025

ONESOURCE API Administration November 2025 release – EMEA

Completed - The scheduled maintenance has been completed.
Nov 19, 21:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 19, 16:00 CST

ONESOURCE API Administration November 2025 release – APAC

Completed - The scheduled maintenance has been completed.
Nov 19, 12:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 19, 07:00 CST

OSPI Platform – APAC Major release for November 2025

Completed - The scheduled maintenance has been completed.
Nov 19, 08:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 19, 02:00 CST

Scheduled - Due to issues identified during our final pre-deployment checks and out of an abundance of caution, we decided to reschedule the planned APAC release. A previous message incorrectly indicated that the release had already been completed; please disregard that earlier notice. We apologize for any confusion this may have caused. The issue has been resolved, and the APAC deployment has now been rescheduled for November 19 at 2:00 a.m. CDT.
Nov 18, 15:04 CST

ONESOURCE API Administration Backend Services November 2025 release in all Production regions

Completed - The scheduled maintenance has been completed.
Nov 19, 06:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 19, 01:00 CST

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.
Nov 11, 09:25 CST

ONESOURCE API Administration Backend Services and UI November 2025 release in UAT.

Completed - The scheduled maintenance has been completed.
Nov 19, 03:00 CST

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

ONESOURCE Determination Enterprise Cloud – Roll back from version 2025.06 to 2025.05 in PROD

Completed - The scheduled maintenance has been completed.
Nov 19, 00:05 CST

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

Scheduled - ONESOURCE Determination Enterprise Cloud release 2025.06 delayed in PROD rolled back to 2025.05 version.
Nov 18, 23:42 CST

Nov 18, 2025

ONESOURCE Determination Enterprise Cloud – Roll back from version 2025.06 to 2025.05 in PROD

Completed - The scheduled maintenance has been completed.
Nov 18, 16:45 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 18, 16:40 CST

Scheduled - Dear Customers,

We want to inform you about a recent change in PROD regarding the application versions for Determination Enterprise Cloud. There is no action required on your part at this time.
As previously communicated, version 2025.06 was released into PROD for Determination Enterprise applications AMER region earlier today, November 18th. However, due to observed performance degradation and increased latency in the Production environment after the deployment, we reverted from 2025.06 to the previous version, 2025.05. Please note that 2025.05 is currently the active version in Determination Enterprise Production.

We understand this may disrupt your workflow and sincerely apologize for any inconvenience this may cause. We realize that changes in production environments can be challenging, and we appreciate your patience as we work to improve your experience. Our team is working diligently to resolve the performance issues and ensure a smooth release.

Here are the key updates:

• The reversion from version 2025.06 to 2025.05 in PROD occurred today after the AMER region deployment.
• The enhancements and issues addressed in version 2025.06 are not yet available in PROD and remain applicable in UAT.
• Version 2025.06 will be released to PROD on November 20 for Determination Enterprise Cloud (AWS EMEA, AWS AMER, OCI AMER).
• For details on the enhancements and fixes in this release, please review the 2025.06 Determination Enterprise Release Notes.

We value your continued partnership and thank you for your understanding as we work to deliver the best possible experience.

Thank you for your continued partnership.

ONESOURCE Indirect Tax Product Management
Nov 18, 16:31 CST

Increased Latency and Intermittent failures for Tax calls in AMER PROD

Resolved - The issue has been mitigated for Tax Calculation service in AMER PROD at 03:32 PM EST. Please update the status page back to green.
Nov 18, 16:03 CST

Investigating - Intermittent Issues: We are currently experiencing intermittent issues with the Tax Calculations feature with our ONESOURCE Determination Enterprise Cloud service.
Nov 18, 10:03 CST

ONESOURCE Determination Anywhere – Version 2025.06 Release Information (PROD environment)

Completed - The scheduled maintenance has been completed.
Nov 18, 11:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 18, 05:00 CST

Scheduled - ONESOURCE Determination Anywhere – Version 2025.06 is being deployed in the PROD environment on November 18, 2025. Your access to the tax calculation services and the application will not be interrupted.
Oct 26, 23:58 CDT

ONESOURCE Determination Enterprise Cloud– Version 2025.06 Release Information (PROD AMER environment)

Completed - The scheduled maintenance has been completed.
Nov 18, 09:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 18, 03:00 CST

Scheduled - ONESOURCE Determination Enterprise Cloud– Version 2025.06 is being deployed in the PROD AMER environment on November 18, 2025. Your access to the tax calculation services and the application will not be interrupted.
Oct 26, 23:24 CDT

Nov 17, 2025

Delay in Data for reports and analytics service in AMER UAT

Resolved - This incident has been resolved.
Nov 17, 20:22 CST

Investigating - Reports and Analytics Service in AMER UAT is currently experiencing delay of 5 hours. We are working on the data catch up, will notify once complete.
Nov 17, 16:04 CST

ONESOURCE Determination – Enterprise Cloud 2025.06 PROD patch (EMEA)

Completed - The scheduled maintenance has been completed.
Nov 17, 12:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 17, 08:00 CST

Scheduled - ONESOURCE Determination – Enterprise Cloud Version 2025.06 patch is being deployed in the PROD environment in the EMEA region on November 17, 2025, at 8:00 AM CST. Your access to the tax calculation services and the application will not be interrupted.
Nov 14, 13:13 CST

Delay in Data for reports and analytics service in AMER PROD

Resolved - This incident has been resolved.
Nov 17, 10:39 CST

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.
Nov 17, 10:09 CST

Reports and Analytics release Version 2025.11 in AMER UAT region

Completed - The scheduled maintenance has been completed.
Nov 17, 10:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 17, 03:00 CST

Scheduled - The deployment of Reports and Analytics release version 2025.11 in the AMER UAT environment is scheduled for 3:00 AM to 10:00 AM CDT. Reports and Analytics User interface will be unavailable until the maintenance is completed. Indirect Tax calculation remains unaffected.
Nov 13, 15:53 CST

OSPI Platform – UAT Major release for November 2025

Completed - The scheduled maintenance has been completed.
Nov 17, 06:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 17, 00:00 CST

Scheduled - ONESOURCE Platform 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.
Nov 14, 12:04 CST

Nov 16, 2025

Delay in Data for reports and analytics service in AMER UAT

Resolved - This incident has been resolved.
Nov 16, 22:42 CST

Investigating - Reports and Analytics Service in AMER UAT is currently experiencing delay of around 15 hours. We are working on the data catch up, will notify once complete
Nov 16, 22:42 CST

ONESOURCE GTM – AWS Maintenance

Completed - The scheduled maintenance has been completed.
Nov 16, 17:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 16, 00:00 CST

Scheduled - Thomson Reuters will be performing scheduled maintenance on Sunday, November 16th, 2025 beginning at 1 AM Eastern time and will conclude by Sunday, November 16th, 2025 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.
Oct 30, 07:56 CDT

Nov 15, 2025

No incidents reported.

Nov 14, 2025

Reports and Analytics release Version 2025.11 in EMEA UAT region

Completed - The scheduled maintenance has been completed.
Nov 14, 10:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 14, 03:00 CST

Scheduled - The deployment of Reports and Analytics release version 2025.11 in the EMEA UAT environment is scheduled for 03:00 AM to 10:00 AM CDT. Reports and Analytics User interface will be unavailable until the maintenance is completed. Indirect Tax calculation remains unaffected.
Nov 13, 15:53 CST

OSPI Platform – UAT Major release for November 2025

Completed - The scheduled maintenance has been completed.
Nov 14, 06:00 CST

Update - Scheduled maintenance is still in progress. We will provide updates as necessary.
Nov 14, 00:58 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 14, 00:00 CST

Nov 13, 2025

ONESOURCE Trust Tax 25.05 Scheduled Release and System Downtime for Nov 12-13 (AMERS)

Completed - The scheduled maintenance has been completed.
Nov 13, 00:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 12, 20:00 CST

Scheduled - Access to all ONESOURCE Trust Tax applications will be suspended beginning at 8:00 P.M. (CT) on Wednesday, November 12, 2025. The 25.05 release of ONESOURCE Trust Tax will be available no later than 12:00 A.M. (CT) on Thursday, November 13.
Nov 12, 05:56 CST

Nov 12, 2025

Nov 11, 2025

Delay in Data for reports and analytics service in AMER PROD

Resolved - This incident has been resolved.
Nov 11, 20:44 CST

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.
Nov 11, 16:53 CST

Delay in Data for reports and analytics service in AMER UAT

Resolved - This incident has been resolved.
Nov 11, 16:22 CST

Investigating - Processing Delayed: We are currently experiencing delays in processing, Reports and Analytics Service in AMER UAT is currently experiencing delay of around 6 hours. We are working on the data catch up. Will notify once complete.
Nov 11, 04:12 CST

ONESOURCE Determination Enterprise Cloud– Version 2025.06 Release Information (PROD EMEA environment)

Completed - The scheduled maintenance has been completed.
Nov 11, 13:00 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 11, 09:00 CST

Scheduled - ONESOURCE Determination Enterprise Cloud– Version 2025.06 is being deployed in the PROD EMEA environment on November 11, 2025. Your access to the tax calculation services and the application will not be interrupted.
Oct 26, 23:20 CDT

ONESOURCE Oracle Fusion Rate to Regime Content release for LATAM NOVEMBER 2025

Completed - The scheduled maintenance has been completed.
Nov 11, 12:30 CST

Scheduled - ONESOURCE Oracle Fusion Rate to Regime Content release Content for LATAM region for NOVEMBER 2025 has been released. It is available in both Integration UI and customer portal for download.
Nov 10, 10:19 CST

Nov 10, 2025

ONESOURCE GTM - Emergency Maintenance Tonight (Nov 10th)

Completed - The scheduled maintenance has been completed.
Nov 10, 22:30 CST

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 10, 21:00 CST

Scheduled - Thomson Reuters has been notified of hardware degradation in the AWS environment that is affecting some customers. To prevent an unplanned outage, we're proactively failing over and migrating affected services ahead of the provider's planned decommission date.

This emergency maintenance will take place tonight, Monday, November 10, 2025, from 10:00 pm Eastern to 11:30 pm Eastern. During this window, customers will not be able to access their GTM instance.

Customers that will be affected by this emergency maintenance have received a system message within their GTM instance.

We appreciate your understanding as we take this preventative step to ensure reliability.
Nov 10, 12:45 CST

Nov 9, 2025

No incidents reported.

Scheduled Maintenance

ONESOURCE Statutory Reporting - Web [EMEA] Nov 23, 2025 16:30 - Nov 24, 2025 00:30 CST

OSPI Platform – AMER Emergency Maintenance for November 2025 Nov 24, 2025 00:00-06:00 CST

ONESOURCE Statutory Reporting - Web [AMERS] Nov 25, 2025 16:30 - Nov 26, 2025 00:30 CST

ONESOURCE Tax Information Release OTIR Release 25.05 2nd December 2025 (AMERS) Dec 2, 2025 19:00 - Dec 3, 2025 06:00 CST

ONESOURCE Indirect Compliance Maintenance Event (R2025.12) planned on Thursday 04th December 2025 Dec 3, 2025 18:30-22:30 CST

ONESOURCE Indirect Compliance Maintenance Event (R2025.12) planned on Thursday 04th December 2025 Dec 4, 2025 07:00-11:00 CST

ONESOURCE GTM – AWS Maintenance Dec 7, 2025 00:00-17:00 CST

ONESOURCE GTM – AWS Maintenance Dec 7, 2025 00:00-17:00 CST

Scheduled System Maintenance Dec 20, 2025 11:00-19:00 CST

ONESOURCE GTM – AWS Maintenance Dec 21, 2025 00:00-17:00 CST

ONESOURCE GTM – AWS Maintenance Dec 21, 2025 00:00-17:00 CST

ONESOURCE Tax Information Reporting System Maintenance 27th December 2025 (AMERS) Dec 27, 2025 22:00 - Dec 28, 2025 07:00 CST

ONESOURCE Tax Information Release OTIR Release 25.06 30th December 2025 (AMERS) Dec 30, 2025 19:00 - Dec 31, 2025 06:00 CST

ONESOURCE Tax Information Release OTIR Release 25.07 17th February 2026 (AMERS) Feb 17, 2026 19:00 - Feb 18, 2026 06:00 CST

ONESOURCE Tax Information Reporting System Maintenance 21st March 2026 (AMERS) Mar 21, 2026 22:00 - Mar 22, 2026 07:00 CDT

ONESOURCE Tax Information Release OTIR Release 26.01 21st April 2026 (AMERS) Apr 21, 2026 19:00 - Apr 22, 2026 06:00 CDT

ONESOURCE Tax Information Reporting System Maintenance 25th April 2026 (AMERS) Apr 25, 2026 22:00 - Apr 26, 2026 07:00 CDT

ONESOURCE Tax Information Reporting System Maintenance 23rd May 2026 (AMERS) May 23, 2026 22:00 - May 24, 2026 07:00 CDT

ONESOURCE Tax Information Release OTIR Release 26.02 16th June 2026 (AMERS) Jun 16, 2026 19:00 - Jun 17, 2026 06:00 CDT

ONESOURCE Tax Information Reporting System Maintenance 27th June 2026 (AMERS) Jun 27, 2026 22:00 - Jun 28, 2026 07:00 CDT

ONESOURCE Tax Information Reporting System Maintenance 25th July 2026 (AMERS) Jul 25, 2026 22:00 - Jul 26, 2026 07:00 CDT

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

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

ONESOURCE Statutory Reporting - Web [EMEA] Nov `23`, `2025` `16:30` - Nov `24`, `2025` `00:30` CST

OSPI Platform – AMER Emergency Maintenance for November 2025 Nov `24`, `2025` `00:00`-`06:00` CST

ONESOURCE Statutory Reporting - Web [AMERS] Nov `25`, `2025` `16:30` - Nov `26`, `2025` `00:30` CST

ONESOURCE Tax Information Release OTIR Release 25.05 2nd December 2025 (AMERS) Dec `2`, `2025` `19:00` - Dec `3`, `2025` `06:00` CST

ONESOURCE Indirect Compliance Maintenance Event (R2025.12) planned on Thursday 04th December 2025 Dec `3`, `2025` `18:30`-`22:30` CST

ONESOURCE Indirect Compliance Maintenance Event (R2025.12) planned on Thursday 04th December 2025 Dec `4`, `2025` `07:00`-`11:00` CST

ONESOURCE GTM – AWS Maintenance Dec `7`, `2025` `00:00`-`17:00` CST

ONESOURCE GTM – AWS Maintenance Dec `7`, `2025` `00:00`-`17:00` CST

Scheduled System Maintenance Dec `20`, `2025` `11:00`-`19:00` CST

ONESOURCE GTM – AWS Maintenance Dec `21`, `2025` `00:00`-`17:00` CST

ONESOURCE GTM – AWS Maintenance Dec `21`, `2025` `00:00`-`17:00` CST

ONESOURCE Tax Information Reporting System Maintenance 27th December 2025 (AMERS) Dec `27`, `2025` `22:00` - Dec `28`, `2025` `07:00` CST

ONESOURCE Tax Information Release OTIR Release 25.06 30th December 2025 (AMERS) Dec `30`, `2025` `19:00` - Dec `31`, `2025` `06:00` CST

ONESOURCE Tax Information Release OTIR Release 25.07 17th February 2026 (AMERS) Feb `17`, `2026` `19:00` - Feb `18`, `2026` `06:00` CST

ONESOURCE Tax Information Reporting System Maintenance 21st March 2026 (AMERS) Mar `21`, `2026` `22:00` - Mar `22`, `2026` `07:00` CDT

ONESOURCE Tax Information Release OTIR Release 26.01 21st April 2026 (AMERS) Apr `21`, `2026` `19:00` - Apr `22`, `2026` `06:00` CDT

ONESOURCE Tax Information Reporting System Maintenance 25th April 2026 (AMERS) Apr `25`, `2026` `22:00` - Apr `26`, `2026` `07:00` CDT

ONESOURCE Tax Information Reporting System Maintenance 23rd May 2026 (AMERS) May `23`, `2026` `22:00` - May `24`, `2026` `07:00` CDT

ONESOURCE Tax Information Release OTIR Release 26.02 16th June 2026 (AMERS) Jun `16`, `2026` `19:00` - Jun `17`, `2026` `06:00` CDT

ONESOURCE Tax Information Reporting System Maintenance 27th June 2026 (AMERS) Jun `27`, `2026` `22:00` - Jun `28`, `2026` `07:00` CDT

ONESOURCE Tax Information Reporting System Maintenance 25th July 2026 (AMERS) Jul `25`, `2026` `22:00` - Jul `26`, `2026` `07:00` CDT

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

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