All Systems 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
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 Operational
AMERS NRA - FNIS & Users Website Operational
AMERS Tax Information Reporting Operational
AMERS Trust Tax Operational
AMERS Trust Tax Insight Operational
Legal Solutions Operational
AMERS LEGAL ONE Operational
Legal Tracker - US Operational
Legal Tracker - AUS Operational
Legal Tracker - UK Operational
Legal Tracker - GER Operational
Legal Tracker - CAN 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
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 Oracle Fusion Rate to Regime Content release for AEM OCTOBER 2025 Oct 3, 2025 12:30 - Oct 4, 2025 12:30 CDT

ONESOURCE Oracle Fusion Rate to Regime Content release Content for AEM region for OCTOBER 2025 has been released. It is available in both Integration UI and customer portal for download.
Posted on Oct 03, 2025 - 03:13 CDT

ONESOURCE Oracle Fusion Rate to Regime Content release for US OCTOBER 2025 Oct 3, 2025 12:30 - Oct 4, 2025 12:30 CDT

ONESOURCE Oracle Fusion Rate to Regime Content release Content for US region for OCTOBER 2025 has been released. It is available in both Integration UI and customer portal for download.
Posted on Oct 03, 2025 - 03:27 CDT

ONESOURCE Oracle Fusion Rate to Regime Content release for EMEA OCTOBER 2025 Oct 3, 2025 12:30 - Oct 4, 2025 12:30 CDT

ONESOURCE Oracle Fusion Rate to Regime Content release Content for EMEA region for OCTOBER 2025 has been released. It is available in both Integration UI and customer portal for download.
Posted on Oct 03, 2025 - 03:25 CDT

ONESOURCE Oracle Fusion Rate to Regime Content release for INDIA OCTOBER 2025 Oct 3, 2025 12:30 - Oct 4, 2025 12:30 CDT

ONESOURCE Oracle Fusion Rate to Regime Content release Content for INDIA region for OCTOBER 2025 has been released. It is available in both Integration UI and customer portal for download.
Posted on Oct 03, 2025 - 03:18 CDT

ONESOURCE Income Tax Oct 7, 2025 00:00-01:30 CDT

ONESOURCE Income Tax will be undergoing maintenance on Tuesday, Oct 7th between 12:00am – 1:30am CT
Posted on Oct 02, 2025 - 09:41 CDT

Planned Database Maintenance for ONESOURCE Determination Enterprise Cloud (AWS - AMER and EMEA) Oct 10, 2025 19:00-23:00 CDT

ONESOURCE Determination: Planned maintenance event to upgrade databases being deployed in the UAT environment in the AWS – AMER and EMEA regions. Downtime is expected on UI and configuration components during this window. Tax calculation services will remain operational.
Posted on Sep 19, 2025 - 17:07 CDT

ONESOURCE Determination Original Cloud: UAT Database Maintenance Oct 12, 2025 23:00 - Oct 13, 2025 02:00 CDT

ONESOURCE Determination Original Cloud UAT is undergoing maintenance from October 12 at 11:00 PM to October 13 at 2:00 AM. During this maintenance window, you will not be able to access the ONESOURCE Determination Original Cloud application in the UAT Environment. However, you can continue to access the Tax Calculation services and other Determination functions.
Posted on Oct 03, 2025 - 00:47 CDT

ONESOURCE Determination Original Cloud: UAT Database Maintenance Oct 13, 2025 23:00 - Oct 14, 2025 02:00 CDT

ONESOURCE Determination Original Cloud UAT is undergoing maintenance from October 13 at 11:00 PM to October 14 at 2:00 AM. During this maintenance window, you will not be able to access the ONESOURCE Determination Original Cloud application in the UAT Environment. However, you can continue to access the Tax Calculation services and other Determination functions.
Posted on Oct 03, 2025 - 00:48 CDT

Planned Database Maintenance for ONESOURCE Determination Enterprise Cloud (AWS AMER and EMEA) Oct 18, 2025 07:30-11:30 CDT

ONESOURCE Determination: Planned maintenance event to upgrade databases being deployed in the PRODUCTION environment in the AWS – AMER and EMEA regions. Downtime is expected on UI and configuration components during this window. Tax calculation services will remain operational.
Posted on Sep 19, 2025 - 17:08 CDT

ONESOURCE GTM – AWS Maintenance Oct 19, 2025 00:00-17:00 CDT

Thomson Reuters will be performing scheduled maintenance on Sunday, October 19th, 2025 beginning at 1 AM Eastern time and will conclude by Sunday, October 19th, 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 Sep 23, 2025 - 12:29 CDT

ONESOURCE Tax Information Release OTIR Release 25.04 21st October 2025 (AMERS) Oct 21, 2025 19:00 - Oct 22, 2025 06:00 CDT

ONESOURCE Tax Information Reporting Release 25.04 will be installed from 7:00 P.M. (CT) on 21st October 2025 until 06:00 A.M. (CT) on 22nd October 2025. System availability and API's may be affected during release time.
Posted on Aug 20, 2024 - 09:30 CDT

OSPI Platform – UAT Major release for October 2025 Oct 23, 2025 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 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 Sep 17, 2025 - 10:04 CDT

OSPI Platform – APAC Major release for October 2025 Oct 24, 2025 07:00-13:00 CDT

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.
Posted on Sep 17, 2025 - 10:03 CDT

Scheduled System Maintenance Oct 25, 2025 11:00-19:00 CDT

Tracker will be undergoing maintenance and unavailable on Saturday 10/25/2025 , from 9:00 AM PST to 5:00 PM PST.
Posted on Jan 23, 2025 - 12:06 CST

ONESOURCE Tax Information Reporting System Maintenance 25th October 2025 (AMERS) Oct 25, 2025 22:00 - Oct 26, 2025 06:00 CDT

ONESOURCE Tax Information Reporting will be unavailable from 10:00 P.M. (CT) on 25th October 2025 until 06:00 A.M. (CT) on 26th October 2025 for scheduled maintenance.
Posted on Aug 20, 2024 - 09:16 CDT

OSPI Platform – EMEA Major release for October 2025 Oct 28, 2025 16:00-22:00 CDT

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.
Posted on Sep 17, 2025 - 10:03 CDT

OSPI Platform – AMER Major release for October 2025 Oct 30, 2025 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 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 Sep 17, 2025 - 10:03 CDT

Scheduled System Maintenance Nov 22, 2025 11:00-19:00 CST

Tracker will be undergoing maintenance and unavailable on Saturday 11/22/2025 , from 9:00 AM PST to 5:00 PM PST.
Posted on Jan 23, 2025 - 12:06 CST

ONESOURCE Tax Information Reporting System Maintenance 22nd November 2025 (AMERS) Nov 22, 2025 22:00 - Nov 23, 2025 07:00 CST

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.
Posted on Aug 20, 2024 - 09:17 CDT

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

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 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 until 06:00 A.M. (CT) on 18th February. System availability and API's may be affected during release time.
Posted on Jan 21, 2025 - 04:31 CST
Oct 5, 2025
ONESOURCE GTM – AWS Maintenance
Completed - The scheduled maintenance has been completed.
Oct 5, 12:08 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Oct 5, 00:00 CDT
Scheduled - Thomson Reuters will be performing scheduled maintenance on Sunday, October 5th, 2025 beginning at 1 AM Eastern time and will conclude by Sunday, October 5th, 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.
Sep 23, 12:29 CDT
ONESOURCE Corporate Tax NextGen [APAC]
Completed - The scheduled maintenance has been completed.
Oct 5, 11:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Oct 5, 07:30 CDT
Scheduled - ONESOURCE Corporate Tax NextGen [APAC] will be undergoing scheduled maintenance from Sunday October 5th 23:30 AEDT to Monday October 6th 03:30 AEDT.
Oct 3, 10:05 CDT
ONESOURCE Trusts [APAC]
Completed - The scheduled maintenance has been completed.
Oct 5, 11:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Oct 5, 07:30 CDT
Scheduled - ONESOURCE TRUSTS [APAC] will be undergoing scheduled maintenance from Sunday October 5th 23:30 AEDT to Monday October 6th 03:30 AEDT.
Oct 3, 10:05 CDT
ONESOURCE Trust Tax System Maintenance Scheduled for October 4-5 (AMERS)
Completed - The scheduled maintenance has been completed.
Oct 5, 02:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Oct 4, 22:00 CDT
Scheduled - Access to ONESOURCE Trust Tax and ONESOURCE Trust Tax Insight applications will be suspended from 10:00 P.M. (CT) on Saturday, October 4, 2025 until 2:00 A.M. (CT) on Sunday, October 5, 2025. We appreciate your understanding while we perform this necessary maintenance.
Sep 25, 23:51 CDT
Oct 4, 2025
Oct 3, 2025
Delay in Data for reports and analytics service in AMER PROD
Resolved - This incident has been resolved.
Oct 3, 06:13 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.
Oct 2, 19:24 CDT
Oct 2, 2025
Delay in Data for Reports and Analytics service in AMER PROD
Resolved - This incident has been resolved.
Oct 2, 10:38 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.
Oct 2, 05:30 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.
Oct 1, 20:18 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.
Oct 1, 14:37 CDT
Oct 1, 2025
ONESOURCE Corporate Tax NextGen [EMEA]
Completed - The scheduled maintenance has been completed.
Oct 1, 20:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Oct 1, 19:30 CDT
Scheduled - ONESOURCE Corporate Tax NextGen [EMEA] will be undergoing scheduled maintenance from
Thursday October 2nd 01:30 BST to Thursday October 2nd 02:30 BST.


The upgrade will help ensure system stability and optimal performance during high usage periods.
Oct 1, 04:22 CDT
ONESOURCE Determination Anywhere 2025.05 PROD patch (AMER)
Completed - The scheduled maintenance has been completed.
Oct 1, 11:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Oct 1, 07:01 CDT
Scheduled - ONESOURCE Determination Anywhere 2025.05 patch will be deployed in the PROD environment for the AMER region on October 01, 2025, at 7:00 AM CST. Please be assured that your access to tax calculation services and the application will remain uninterrupted during this time.
Sep 24, 16:23 CDT
ONESOURCE Determination – Enterprise Cloud 2025.05 PROD patch (AMER)
Completed - The scheduled maintenance has been completed.
Oct 1, 09:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Oct 1, 05:00 CDT
Scheduled - ONESOURCE Determination – Enterprise cloud Version 2025.05 patch is being deployed in the PROD environment in the AMER region on October 01, 2025, at 5:00 AM CST. Your access to the tax calculation services and the application will not be interrupted.
Sep 25, 16:20 CDT
ONESOURCE Determination – Enterprise Cloud 2025.05 PROD patch (EMEA)
Completed - The scheduled maintenance has been completed.
Oct 1, 07:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Oct 1, 03:00 CDT
Scheduled - ONESOURCE Determination – Enterprise cloud Version 2025.05 patch is being deployed in the PROD environment in the EMEA region on October 01, 2025, at 3:00 AM CST. Your access to the tax calculation services and the application will not be interrupted.
Sep 25, 16:20 CDT
Delay in Data for reports and analytics service in AMER PROD
Resolved - This incident has been resolved.
Oct 1, 06:50 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
Sep 30, 19:09 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
Sep 30, 04:09 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.
Sep 29, 21:09 CDT
Sep 30, 2025
ONESOURCE Statutory Reporting - Web [EMEA]
Completed - The scheduled maintenance has been completed.
Sep 30, 23:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 30, 19:30 CDT
Scheduled - ONESOURCE Statutory Reporting - Web [EMEA] will be undergoing scheduled maintenance during Oct 1, 2025 1:30 BST to Oct 1, 2025 05:30 BST.
Sep 28, 23:55 CDT
We are experiencing Tax calculation API failures in EMEA UAT
Resolved - This incident has been resolved.
Sep 30, 13:54 CDT
Investigating - We are currently experiencing an issue with the Tax Calculation API feature with our ONESOURCE Indirect Tax 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.
Sep 30, 13:23 CDT
PROD - Token Generation Failures while using IDT API's
Resolved - This incident has been resolved.
Sep 30, 10:21 CDT
Monitoring - We are aware that some customers have experienced intermittent failures with Oauth Token generation in PROD environment between 08:46 AM CT to 08:51 AM CT while using Tax Calculation API's. More details to follow soon regarding this incident. Thank you for your understanding and patience.
Sep 29, 09:49 CDT
ONESOURCE Statutory Reporting - Web [APAC]
Completed - The scheduled maintenance has been completed.
Sep 30, 09:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 30, 05:00 CDT
Scheduled - ONESOURCE Statutory Reporting - Web [APAC] will be undergoing scheduled maintenance during Sep 30, 2025 20:00 AEST to Oct 1, 2025 00:00 AEST.
Sep 28, 23:54 CDT
Sep 29, 2025
Tax Calculation failures in EMEA UAT for SOAP and REST API
Resolved - This incident has been resolved.
Sep 29, 20:56 CDT
Investigating - We are currently experiencing intermittent issues with the Tax Calculation Service feature with our ONESOURCE Indirect Tax 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.
Sep 29, 17:04 CDT
ONESOURCE Determination Anywhere 2025.05 UAT patch (AMER)
Completed - The scheduled maintenance has been completed.
Sep 29, 11:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 29, 07:01 CDT
Scheduled - ONESOURCE Determination Anywhere 2025.05 patch will be deployed in the UAT environment for the AMER region on September 29, 2025, at 7:00 AM CST. Please be assured that your access to tax calculation services and the application will remain uninterrupted during this time.
Sep 24, 16:22 CDT
ONESOURCE Determination – Enterprise Cloud 2025.05 UAT patch (AMER)
Completed - The scheduled maintenance has been completed.
Sep 29, 09:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 29, 05:00 CDT
Scheduled - ONESOURCE Determination – Enterprise cloud Version 2025.05 patch is being deployed in the UAT environment in the AMER region on September 29, 2025, at 5:00 AM CST. Your access to the tax calculation services and the application will not be interrupted.
Sep 25, 16:12 CDT
ONESOURCE Determination – Enterprise Cloud 2025.05 UAT patch (EMEA)
Completed - The scheduled maintenance has been completed.
Sep 29, 07:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 29, 03:00 CDT
Scheduled - ONESOURCE Determination – Enterprise cloud Version 2025.05 patch is being deployed in the UAT environment in the EMEA region on September 29, 2025, at 3:00 AM CST. Your access to the tax calculation services and the application will not be interrupted.
Sep 25, 16:12 CDT
Sep 28, 2025
Delay in Data for reports and analytics service in AMER PROD
Resolved - This incident has been resolved.
Sep 28, 19:05 CDT
ONESOURCE Tax Information Reporting
Completed - The scheduled maintenance has been completed.
Sep 28, 07:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 27, 22:00 CDT
Scheduled - ONESOURCE Tax Information Reporting and API’s will be unavailable from 10:00 P.M. (CT) on Saturday, September 27, 2025, until 7:00 A.M. (CT) on Sunday, September 28, 2025, for scheduled maintenance. We appreciate your understanding while we perform this necessary maintenance.
Sep 11, 13:58 CDT
ONESOURCE Sales & Use Tax
Completed - The scheduled maintenance has been completed.
Sep 28, 06:01 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 28, 00:01 CDT
Scheduled - ONESOURCE Sales & Use Tax will be undergoing maintenance on Sunday, September 28th 12:00am – 6:00am CT, users may see a brief degradation in the application while we are performing the maintenance.
Sep 25, 16:15 CDT
GoSystem Tax RS
Completed - The scheduled maintenance has been completed.
Sep 28, 06:01 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 28, 00:01 CDT
Scheduled - GoSystem Tax RS will be undergoing maintenance on Sunday, September 28th 12:00am – 6:00am CT, users may see a brief degradation in the application while we are performing the maintenance.
Sep 25, 16:15 CDT
ONESOURCE Income Tax
Completed - The scheduled maintenance has been completed.
Sep 28, 06:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 28, 00:00 CDT
Scheduled - ONESOURCE Income Tax will be undergoing maintenance on Sunday, September 28th 12:00am – 6:00am CT, users may see a brief degradation in the application while we are performing the maintenance.
Sep 24, 14:01 CDT
Sep 27, 2025
ONESOURCE Statutory Reporting - Legacy [EMEA]
Completed - The scheduled maintenance has been completed.
Sep 27, 21:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 27, 09:00 CDT
Scheduled - ONESOURCE Statutory Reporting - Legacy [EMEA] will be undergoing scheduled maintenance during Sep 27, 2025 15:00 BST to Sep 28, 2025 03:00 BST.
Sep 26, 11:37 CDT
ONESOURCE Corporate Tax Legacy Network change
Completed - The scheduled maintenance has been completed.
Sep 27, 19:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 27, 08:00 CDT
Scheduled - ONESOURCE Corporate Tax [EMEA] will be undergoing scheduled maintenance from Saturday 27th September 15:00 BST to Sunday 28th September 02:00 BST.
Sep 26, 06:08 CDT
Sep 26, 2025
ONESOURCE Trusts [APAC]
Completed - The scheduled maintenance has been completed.
Sep 26, 16:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 26, 10:31 CDT
Scheduled - ONESOURCE TRUSTS [APAC] will be undergoing scheduled maintenance from Saturday September 27th 1:30 AEST to Saturday September 27th 7:30 AEST.


This maintenance window enables the deployment of our upcoming platform release: R2025.3.
We appreciate your patience as we work to bring you new enhancements.
Sep 25, 02:14 CDT
ONESOURCE Corporate Tax NextGen [APAC]
Completed - The scheduled maintenance has been completed.
Sep 26, 16:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 26, 10:30 CDT
Scheduled - ONESOURCE Corporate Tax NextGen [APAC] will be undergoing scheduled maintenance from Saturday September 27th 1:30 AEST to Saturday September 27th 7:30 AEST.


This maintenance window enables the deployment of our upcoming platform release: R2025.3.
We appreciate your patience as we work to bring you new enhancements.
Sep 25, 02:15 CDT
Delay in Data for reports and analytics service in AMER PROD
Resolved - This incident has been resolved.
Sep 26, 03:37 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.
Sep 25, 21:58 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.
Sep 25, 16:08 CDT
ONESOURCE Income Tax
Completed - The scheduled maintenance has been completed.
Sep 26, 01:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 26, 00:00 CDT
Scheduled - ONESOURCE Income Tax will be undergoing maintenance on Friday, Sept 26th between 12:00am – 1:30am CT
Sep 23, 12:25 CDT
Sep 25, 2025
ONESOURCE Data Query
Completed - The scheduled maintenance has been completed.
Sep 25, 22:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 25, 18:00 CDT
Scheduled - ONESOURCE Data Query will be undergoing maintenance on Thursday, Sept 25th between 6:00pm – 10:00pm CT
Sep 23, 12:25 CDT
ONESOURCE Oracle Fusion Rate to Regime Content release for CANADA OCTOBER 2025
Completed - The scheduled maintenance has been completed.
Sep 25, 12:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 24, 12:30 CDT
Scheduled - ONESOURCE Oracle Fusion Rate to Regime Content release Content for CANADA region for OCTOBER 2025 has been released. It is available in both Integration UI and customer portal for download.
Sep 24, 09:20 CDT
Intermittent Issues with ONESOURCE Corporate Tax application
Resolved - This incident has been resolved.
Sep 25, 10:18 CDT
Investigating - We are currently experiencing intermittent issues with the Calculation feature with our Workbook 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.
Sep 25, 09:09 CDT
ONESOURCE E-Invoicing Release Notes (R1.8.0.0)- Thursday 9th Sept 2025
Completed - The scheduled maintenance has been completed.
Sep 25, 05:20 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 25, 05:15 CDT
Scheduled - ONESOURCE E-Invoicing Release Notes (R1.8.0.0)- Thursday 25th Sept 2025
Sep 25, 05:02 CDT
Sep 24, 2025
ONESOURCE Tax Provision
Completed - The scheduled maintenance has been completed.
Sep 24, 02:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 23, 22:00 CDT
Scheduled - ONESOURCE Tax Provision will be undergoing maintenance activities on September 23, 2025.
September 23-24, 2025: 10:00 PM to 2:00 AM CST (AMERS)

Users may experience downtime in ONESOURCE Tax Provision due to these activities.
Sep 23, 15:26 CDT
Sep 23, 2025
ONESOURCE Tax Provision
Completed - The scheduled maintenance has been completed.
Sep 23, 17:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 23, 16:50 CDT
Scheduled - ONESOURCE Tax Provision will be undergoing maintenance activities on September 23, 2025.
September 23, 2025, 3:00 PM to 4:00 PM CST (EMEA)

Users may experience downtime in ONESOURCE Tax Provision due to these activities.
Sep 23, 15:49 CDT
ONESOURCE Determination Anywhere – Version 2025.05 Release Information (PROD environment)
Completed - The scheduled maintenance has been completed.
Sep 23, 09:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 23, 05:00 CDT
Scheduled - ONESOURCE Determination Anywhere – Version 2025.05 is being deployed in the PROD environment on September 23, 2025. Your access to the tax calculation services and the application will not be interrupted.
Aug 26, 16:38 CDT
ONESOURCE Determination – Configuration API Version 2025.5 Production Release Information (AMERS Region)
Completed - The scheduled maintenance has been completed.
Sep 23, 08:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 23, 05:00 CDT
Scheduled - ONESOURCE Determination – Configuration API Version 2025.5 is being deployed in the AMERS Production environment. No downtime is expected during this deployment window.
Sep 3, 10:44 CDT
ONESOURCE Determination Enterprise Cloud– Version 2025.05 Release Information (PROD AMER environment)
Completed - The scheduled maintenance has been completed.
Sep 23, 07:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 23, 03:00 CDT
Scheduled - ONESOURCE Determination Enterprise Cloud– Version 2025.05 is being deployed in the PROD AMER environment on September 23, 2025. Your access to the tax calculation services and the application will not be interrupted.
Aug 26, 16:38 CDT
Sep 22, 2025
Delay in Data for reports and analytics service in AMER PROD
Resolved - This incident has been resolved.
Sep 22, 14:39 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.
Sep 22, 11:58 CDT
ONESOURCE Statutory Reporting - Web [APAC]
Completed - The scheduled maintenance has been completed.
Sep 22, 10:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 22, 09:00 CDT
Scheduled - ONESOURCE Statutory Reporting - Web [APAC] will be undergoing scheduled maintenance during Sep 23, 2025 00:00 AEST to Sep 23, 2025 01:00 AEST.
Sep 22, 08:55 CDT
ONESOURCE Statutory Reporting - Web [AMERS]
Completed - The scheduled maintenance has been completed.
Sep 22, 01:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 21, 19:30 CDT
Scheduled - ONESOURCE Statutory Reporting - Web [AMERS] will be undergoing scheduled maintenance during Sep 21, 2025 20:30 EDT to Sep 22, 2025 02:30 EDT.
Sep 19, 02:47 CDT
Sep 21, 2025
ONESOURCE GTM – AWS Maintenance
Completed - The scheduled maintenance has been completed.
Sep 21, 17:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 21, 00:00 CDT
Scheduled - Thomson Reuters will be performing scheduled maintenance on Sunday, September 21th, 2025 beginning at 1 AM Eastern time and will conclude by Sunday, September 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.
Aug 26, 12:01 CDT
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