Thomson Reuters Corporates Status

Delay in Data for reports and analytics service in AMER PROD

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.
Apr 03, 2026 - 00:21 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.
Apr 02, 2026 - 10:40 CDT

Update - Reports and Analytics Service in AMER PROD is currently experiencing delay of around 11 hours. We are working on the data catch up. Will notify once complete.
Apr 02, 2026 - 03:34 CDT

Update - Reports and Analytics Service in AMER PROD is currently experiencing delay of around 12 hours. We are working on the data catch up. Will notify once complete.
Apr 01, 2026 - 20:52 CDT

Investigating - Reports and Analytics Service in AMER PROD is currently experiencing delay of around 11 hours. We are working on the data catch up. Will notify once complete.
Apr 01, 2026 - 14:16 CDT

General Ledger Manager Classic [EMEA]

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Apr 02, 2026 - 22:30 CDT

Scheduled - ONESOURCE General Ledger Manager Classic will be unavailable from April 2nd 2026, 10:30 P.M. (CT) until April 3rd 2026, 3:30 A.M. (CT) for scheduled maintenance.
Apr 2, 2026 22:30 - Apr 3, 2026 03:30 CDT

ONESOURCE Oracle Fusion Rate to Regime Content release for AEM APRIL 2026

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Apr 02, 2026 - 15:00 CDT

Scheduled - ONESOURCE Oracle Fusion Rate to Regime Content release Content for AEM region for APRIL 2026 has been released. It is available in Integration UI for download.
Apr 2, 2026 15:00 - Apr 3, 2026 15:00 CDT

WorkFlow Tools Operational

AMERS Calendar Operational

AMERS Calendar Classic Operational

AMERS FileRoom Operational

AMERS WorkFlow Operational

AMERS WorkFlow Manager Classic Operational

APAC Calendar Operational

APAC Calendar Classic Operational

APAC FileRoom Operational

APAC WorkFlow Operational

APAC WorkFlow Manager Classic Operational

EMEA Calendar Operational

EMEA Calendar Classic Operational

EMEA FileRoom Operational

EMEA WorkFlow Operational

EMEA WorkFlow Manager Classic Operational

Platform Operational

AMERS (onesourcetax.com) Operational

AMERS (onesourcelogin.com) Operational

AMERS Administration Operational

AMERS API Administration Operational

AMERS UAT (uat.onesourcetax.com) Operational

AMERS UAT (uat.onesourcelogin.com) Operational

APAC (apac1.onesourcetax.com) Operational

APAC (onesourcelogin.com.au) Operational

APAC Administration Operational

APAC API Administration Operational

EMEA (emea1.onesourcetax.com) Operational

EMEA (onesourcelogin.eu) Operational

EMEA Administration Operational

EMEA API Administration Operational

UAT API Administration Operational

Data Tools Under Maintenance

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 Under Maintenance

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 Degraded Performance

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 Degraded Performance

Reporting - Original Cloud Operational

US Tax Content Operational

Canada Tax Content Operational

International Tax Content Operational

Content Extract Operational

Fast Sales Tax Operational

ONESOURCE Property Tax Operational

ONESOURCE Sales and Use Tax Compliance (AMER) Operational

ONESOURCE Indirect Compliance (APAC) Operational

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

ONESOURCE Indirect Compliance (EMEA) Operational

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

ONESOURCE Indirect Compliance (UAT) Operational

ONESOURCE E-Invoicing (PROD) Operational

ONESOURCE E-Invoicing (UAT) Operational

ONESOURCE Determination - On Premise Operational

ONESOURCE Determination (APAC) Operational

IDT Integrations Operational

Address Validation Service Operational

BigCommerce Operational

Coupa Operational

Data File Integrator - Enterprise Cloud Operational

Data File Integrator - Original Cloud Operational

Microsoft Dynamics 365 - Commerce Cloud Operational

Microsoft Dynamics 365FOE Operational

Microsoft Dynamics AX 2012 Operational

Microsoft Dynamics GP Operational

NetSuite Legacy/Direct Operational

NetSuite SuiteTax Operational

Oracle EBS R12 Operational

Oracle Fusion Tax Cloud - 1.x Operational

Oracle Fusion Tax Cloud - 2.x Operational

Salesforce Subscription Management Operational

SAP 5.2B Basic (RFC) Operational

SAP Ariba - Cloud Operational

SAP Ariba - OnPremise Operational

SAP Ariba - Original cloud Operational

SAP Business One Operational

SAP C4/HANA Commerce Cloud Operational

SAP Global Next Operational

SAP Global Tax Service Operational

SAP US Tax S4/HANA Cloud Operational

Trust & Info Rptg Operational

AMERS NRA - FNIS & Users Website Operational

AMERS Tax Information Reporting Operational

AMERS Trust Tax Operational

AMERS Trust Tax Insight Operational

Risk Solutions Operational

AMERS Compliance Learning Operational

AMERS Oden Online (State Rules and Regulations) Operational

AMERS Oden Policy Terminator Operational

AMERS Oden Track (web) Operational

AMERS Regulatory Intelligence Operational

ANZ Compliance Learning Operational

APAC Compliance Learning Operational

APAC Regulatory Intelligence Operational

EMEA Compliance Learning Operational

EMEA Regulatory Intelligence Operational

Tax Brazil Operational

Checkpoint Corporate Operational

ONESOURCE DFe Operational

ONESOURCE Tax Analyser Operational

Tax One for SAP® solutions Operational

Tax Brazil - Tax One Operational

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 INDIA APRIL 2026 Apr `2`, `2026` `12:30` - Apr `3`, `2026` `12:30` CDT

ONESOURCE Oracle Fusion Rate to Regime Content release Content for INDIA region for APRIL 2026 has been released. It is available in Integration UI for download.
Posted on Apr 02, 2026 - 08:15 CDT

ONESOURCE Trusts [APAC] Apr `3`, `2026` `10:30`-`16:30` CDT

Update - We will be undergoing scheduled maintenance during this time.
Mar 31, 2026 - 04:27 CDT

Scheduled - ONESOURCE TRUSTS [APAC] will undergo scheduled maintenance and will be unavailable from Saturday, April 4th 02:30 AEDT to 08:30 AEDT.

This maintenance window enables the deployment of our upcoming platform release: R2026.1.
We appreciate your patience as we work to bring you new enhancements.
Mar 31, 2026 - 04:27 CDT

ONESOURCE Corporate Tax NextGen [APAC] Apr `3`, `2026` `10:30`-`16:30` CDT

Update - We will be undergoing scheduled maintenance during this time.
Mar 31, 2026 - 04:25 CDT

Scheduled - ONESOURCE Corporate Tax NextGen [APAC] will undergo scheduled maintenance and will be unavailable from Saturday, April 4th 02:30 AEDT to 08:30 AEDT.

This maintenance window enables the deployment of our upcoming platform release: R2026.1.
We appreciate your patience as we work to bring you new enhancements.
Mar 31, 2026 - 04:25 CDT

ONESOURCE GTM – AWS Maintenance Apr `5`, `2026` `00:00`-`17:00` CDT

Thomson Reuters will be performing scheduled maintenance on Sunday, April 5th, 2026 beginning at 1 AM Eastern time and will conclude by Sunday, April 5th, 2026 at 6 PM Eastern time.
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Feb 25, 2026 - 12:44 CST

ONESOURCE Determination – Enterprise cloud Version 2026.02.02 Production Release Information (EMEA Region) Apr `6`, `2026` `04:00`-`08:00` CDT

ONESOURCE Determination – Enterprise Cloud Version 2026.02.02 Patch release - is being deployed in the PROD environment in the EMEA region on April 06, 2026. Your access to the tax calculation services and the application will not be interrupted.
Posted on Apr 01, 2026 - 05:18 CDT

ONESOURCE Determination – Enterprise cloud Version 2026.02.02 Production Release Information (AMERS Region) Apr `6`, `2026` `06:00`-`10:00` CDT

Update - We will be undergoing scheduled maintenance during this time.
Apr 01, 2026 - 05:17 CDT

Scheduled - ONESOURCE Determination – Enterprise Cloud Version 2026.02.02 Patch release - is being deployed in the PROD environment in the AMER region on April 06, 2026. Your access to the tax calculation services and the application will not be interrupted.
Apr 01, 2026 - 05:13 CDT

ONESOURCE Fringe Benefits Tax Apr `6`, `2026` `06:00`-`10:00` CDT

ONESOURCE Fringe Benefits Tax will be unavailable from Monday April 6th 2026, 22:00 AEDT to Tuesday April 7th, 2026 02:00 AEDT
Posted on Apr 02, 2026 - 06:09 CDT

ONESOURCE Determination Anywhere 2026.02 PROD patch (AMER) Apr `6`, `2026` `08:00`-`12:00` CDT

ONESOURCE Determination Anywhere 2026.02 patch will be deployed in the PROD environment for the AMER region on April 06, 2026, at 8:00 AM CST. Please be assured that your access to tax calculation services and the application will remain uninterrupted during this time.
Posted on Apr 01, 2026 - 05:01 CDT

ONESOURCE GTM – AWS Maintenance Apr `19`, `2026` `00:00`-`17:00` CDT

Thomson Reuters will be performing scheduled maintenance on Sunday, April 19th, 2026 beginning at 1 AM Eastern time and will conclude by Sunday, April 19th, 2026 at 6 PM Eastern time.
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Feb 25, 2026 - 12:44 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 GTM – AWS Maintenance May `3`, `2026` `00:00`-`17:00` CDT

Thomson Reuters will be performing scheduled maintenance on Sunday, May 3rd, 2026 beginning at 1 AM Eastern time and will conclude by Sunday, May 3rd, 2026 at 6 PM Eastern time.
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Feb 25, 2026 - 12:44 CST

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

Thomson Reuters will be performing scheduled maintenance on Sunday, May 17th, 2026 beginning at 1 AM Eastern time and will conclude by Sunday, May 17th, 2026 at 6 PM Eastern time.
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Feb 25, 2026 - 12:44 CST

ONESOURCE Tax Information 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 GTM – AWS Maintenance Jun `7`, `2026` `00:00`-`17:00` CDT

Thomson Reuters will be performing scheduled maintenance on Sunday, June 7th, 2026 beginning at 1 AM Eastern time and will conclude by Sunday, June 7th, 2026 at 6 PM Eastern time.
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Feb 25, 2026 - 12:44 CST

ONESOURCE Tax Information Release OTIR Release 26.02 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 GTM – AWS Maintenance Jun `21`, `2026` `00:00`-`17:00` CDT

Thomson Reuters will be performing scheduled maintenance on Sunday, June 21th, 2026 beginning at 1 AM Eastern time and will conclude by Sunday, June 21th, 2026 at 6 PM Eastern time.
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Feb 25, 2026 - 12:44 CST

ONESOURCE Tax Information 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 GTM – AWS Maintenance Jul `5`, `2026` `00:00`-`17:00` CDT

Thomson Reuters will be performing scheduled maintenance on Sunday, July 5th, 2026 beginning at 1 AM Eastern time and will conclude by Sunday, July 5th, 2026 at 6 PM Eastern time.
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Feb 25, 2026 - 12:44 CST

ONESOURCE GTM – AWS Maintenance Jul `19`, `2026` `00:00`-`17:00` CDT

Thomson Reuters will be performing scheduled maintenance on Sunday, July 19th, 2026 beginning at 1 AM Eastern time and will conclude by Sunday, July 19th, 2026 at 6 PM Eastern time.
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Feb 25, 2026 - 12:44 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 GTM – AWS Maintenance Aug `9`, `2026` `00:00`-`17:00` CDT

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Past Incidents

Apr 3, 2026

ONESOURCE Income Tax Maintenance

Completed - The scheduled maintenance has been completed.
Apr 3, 01:30 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Apr 3, 00:00 CDT

Scheduled - ONESOURCE Income Tax will be undergoing maintenance on Friday, April 3rd between 12:00am – 1:30am CT
Mar 30, 15:43 CDT

Apr 2, 2026

ONESOURCE Corporate Tax NextGen [EMEA]

Completed - The scheduled maintenance has been completed.
Apr 2, 23:30 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Apr 2, 17:30 CDT

Update - We will be undergoing scheduled maintenance during this time.
Mar 31, 05:47 CDT

Scheduled - ONESOURCE Corporate Tax NextGen [EMEA] will undergo scheduled maintenance and will be unavailable from Thursday, April 2nd 23:30 BST to Friday, April 3rd 05:30 BST.

This maintenance window enables the deployment of our upcoming platform release: R2026.1.
We appreciate your patience as we work to bring you new enhancements.
Mar 31, 05:47 CDT

ONESOURCE Indirect Compliance Maintenance Event (R2026.04) planned on Thursday 02nd April 2026

Completed - The scheduled maintenance has been completed.
Apr 2, 23:30 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Apr 2, 19:30 CDT

Scheduled - Database maintenance event in progress to deploy R2026.04

There will be limited service during this deployment.
Mar 26, 03:34 CDT

ONESOURCE Indirect Compliance Maintenance Event (R2026.04) planned on Thursday 2nd April 2026

Completed - The scheduled maintenance has been completed.
Apr 2, 12:01 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Apr 2, 08:00 CDT

Scheduled - Database maintenance event in progress to deploy R2026.04

There will be limited service during this deployment.
Mar 26, 03:31 CDT

ONESOURCE Determination Anywhere 2026.02 UAT patch (AMER)

Completed - The scheduled maintenance has been completed.
Apr 2, 12:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Apr 2, 08:01 CDT

Scheduled - ONESOURCE Determination Anywhere 2026.02 patch will be deployed in the UAT environment for the AMER region on April 02, 2026, at 8:00 AM CST. Please be assured that your access to tax calculation services and the application will remain uninterrupted during this time.
Apr 1, 05:00 CDT

ONESOURCE Determination – Enterprise cloud Version 2026.02.02 Patch Release (AMER Region)

Completed - The scheduled maintenance has been completed.
Apr 2, 10:01 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Apr 2, 06:00 CDT

Scheduled - Dear Valued Customers,

We want to inform that we will release a patch for ONESOURCE Determination – Enterprise Cloud Version 2026.02 in the UAT and PROD environments for the AMER region. This additional release is intended to resolve issues identified in the UAT and PROD environments.

The patch deployment revised date is planned as follows:

- DET Cloud UAT – April 02nd, 2026, at 7:00 AM EST. (AMER)
- DET Cloud PROD - April 06th, 2026, at 7:00 AM EST. (AMER)

To learn more about the impact please refer to the Release Schedule section of the Determination 2026.02.02 patch release notes.

We sincerely apologize for any inconvenience this may cause and appreciate your understanding.

Warm regards,
ONESOURCE Indirect Tax Product Management
Apr 2, 04:13 CDT

ONESOURCE Determination – Enterprise cloud Version 2026.02.02 Patch Release (AMER Region)

Completed - The scheduled maintenance has been completed.
Apr 2, 10:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Apr 2, 06:01 CDT

Update - We will be undergoing scheduled maintenance during this time.
Apr 1, 05:16 CDT

Scheduled - ONESOURCE Determination – Enterprise Cloud Version 2026.02.02 Patch release - is being deployed in the UAT environment in the AMER region on April 02, 2026. Your access to the tax calculation services and the application will not be interrupted.
Apr 1, 05:11 CDT

ONESOURCE Determination – Enterprise cloud Version 2026.02.02 Patch Release update (EMEA Region)

Completed - The scheduled maintenance has been completed.
Apr 2, 08:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Apr 2, 04:00 CDT

Scheduled - ONESOURCE Determination – Enterprise Cloud Version 2026.02.02 patch release - is being deployed in the UAT environment in the EMEA region on April 02, 2026. Your access to the tax calculation services and the application will not be interrupted.
Apr 1, 05:15 CDT

ONESOURCE Pagero E-Invoicing integration for SAP S/4HANA release version 2.2.1.0 March 31st, 2026

Completed - The scheduled maintenance has been completed.
Apr 2, 04:31 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Apr 2, 04:30 CDT

Scheduled - Hello,

This is to notify you of an update that E-Invoicing SAP S/4HANA 2.2.1.0 package is released successfully:

The release notes link provide an overview of updates and other features, enhancements or fixes that may be of interest.
SAP S4 2.2.1.0 Release Notes

Thank You,
ONESOURCE E-Invoicing Team
Apr 2, 04:10 CDT

Apr 1, 2026

Reports and Analytics release Version 2026.02 in AMER PROD region

Completed - The scheduled maintenance has been completed.
Apr 1, 11:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Apr 1, 10:40 CDT

Scheduled - The deployment of Reports and Analytics release version 2026.02 in the AMER PROD environment is scheduled for 04:00 AM to 11:00 AM CDT. Rest assured that your access to the user interface and tax calculation services will not be affected during this maintenance period.
Apr 1, 10:31 CDT

Intermittent High latency and failures for Tax calculations in AWS AMER UAT

Resolved - Dear Customers,

We experienced intermittent high latency and failures with tax calculations requests for SOAP & REST services in the ONESOURCE Indirect Tax Determination - AMER UAT environment between 7:22AM and 8:20 AM ET on 1st April. The issue is mitigated now.

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

Further details will be provided in the formal RCA. If you have any questions, please contact Customer Support.
Apr 1, 10:55 CDT

Monitoring - A fix has been implemented and we are monitoring the results.
Apr 1, 08:18 CDT

Investigating - We are currently experiencing intermittent issues with the Tax calculations (Soap and Rest API) feature with our Onesource Indirect Tax Determination Enterprise service.
Apr 1, 07:25 CDT

Performance Degradation on ABACUS

Resolved - This incident has been resolved.
Apr 1, 07:02 CDT

Update - We are continuing to investigate this issue.
Mar 31, 05:43 CDT

Investigating - We are currently experiencing a performance issue with the Abacus [Legacy CorporateTax] application . 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.
Mar 31, 05:39 CDT

Intermittent High Latency for tax calculations in AWS AMER PROD

Resolved - Dear Customers,

We experienced intermittent high latency issues with tax calculations requests for SOAP & REST services in the ONESOURCE Indirect Tax Determination - AMER Production environment between 4:30 AM and 4:51 AM ET on 1st April. The issue is mitigated now.

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

Further details will be provided in the formal RCA. If you have any questions, please contact Customer Support.
Apr 1, 05:25 CDT

Monitoring - A fix has been implemented and we are monitoring the results.
Apr 1, 05:06 CDT

Investigating - We are currently experiencing intermittent issues with the Tax calculation service feature with our Onesource Indirect Tax Determination Enterprise service.
Apr 1, 04:07 CDT

ONESOURCE API Administration Emergency Maintenance in AMER

Completed - The scheduled maintenance has been completed.
Apr 1, 03:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Apr 1, 00:00 CDT

Scheduled - ONESOURCE Events will have a minor controlled infrastructure configuration update to stabilize and optimize performance to support the upcoming April peak tax season. There will not be any impact during this maintenance. During this time, publishers will be able to connect/publish events. Subscribers/webhooks will remain configured and will receive new events.

If you experience issues or face delays in receiving events, please retry after some time. We apologize for the inconvenience and appreciate your patience. For urgent assistance, please contact our support team.
Mar 31, 15:11 CDT

ONESOURCE Determination Original Cloud: UAT OS Patching

Completed - The scheduled maintenance has been completed.
Apr 1, 02:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 31, 23:00 CDT

Scheduled - ONESOURCE Determination Original Cloud UAT is undergoing maintenance from March 31st, 2026 at 11:00 PM CST to April 1st, 2026 at 2:00 AM CST. 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.
Mar 25, 23:56 CDT

Mar 31, 2026

Intermittent Latency Observed for Tax Calculation REST API Across AMER, EMEA, OCI UAT/PROD

Resolved - Dear Customers,

We experienced intermittent latencies with the Tax Calculation REST APIs in ONESOURCE Indirect Tax Determination across the AMER, EMEA, and OCI in both UAT and PROD environments between 12:00 PM and 12:15 PM CST on March 31.

The issue has now been mitigated.

We apologize for any inconvenience this may have caused and appreciate your understanding and patience. We are actively looking into the root cause. If you have any questions, please contact Customer Support.
Mar 31, 12:56 CDT

Investigating - We are currently experiencing intermittent issues with the Tax calculation REST API feature with our ONESOURCE Indirect Tax Determination Enterprise. 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.
Mar 31, 12:48 CDT

ONESOURCE Oracle Fusion Rate to Regime Content release for CANADA APRIL 2026

Completed - The scheduled maintenance has been completed.
Mar 31, 12:30 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 30, 12:30 CDT

Scheduled - ONESOURCE Oracle Fusion Rate to Regime Content release Content for CANADA region for APRIL 2026 has been released. It is available in Integration UI for download.
Mar 30, 06:25 CDT

ONESOURCE Determination Anywhere – Version 2026.02 Release Information (PROD environment)

Completed - The scheduled maintenance has been completed.
Mar 31, 11:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 31, 05:00 CDT

Scheduled - ONESOURCE Determination Anywhere – Version 2026.02 is being deployed in the PROD environment on March 31, 2026. Your access to the tax calculation services and the application will not be interrupted.
Feb 27, 03:44 CST

ONESOURCE Determination Enterprise Cloud– Version 2026.02 Release Information (PROD AMER environment)

Completed - The scheduled maintenance has been completed.
Mar 31, 09:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 31, 03:00 CDT

Scheduled - ONESOURCE Determination Enterprise Cloud– Version 2026.02 is being deployed in the PROD AMER environment on March 31, 2026. Your access to the tax calculation services and the application will not be interrupted.
Feb 27, 03:42 CST

Mar 30, 2026

Intermittent High Latency and failures for tax calculations in AWS AMER UAT

Resolved - This incident has been resolved.
Mar 30, 03:18 CDT

Investigating - We are currently experiencing intermittent issues with the Tax calculations feature with our Onesource Indirect Tax Determination Enterprise service.
Mar 30, 02:34 CDT

ONESOURCE Statutory Reporting - Web [EMEA]

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

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 29, 17:30 CDT

Scheduled - ONESOURCE Statutory Reporting - Web [EMEA] will be undergoing scheduled maintenance during Mar 29, 2026 23:30 BST to Mar 30, 2026 07:30 BST.
Mar 27, 10:24 CDT

Mar 29, 2026

ONESOURCE Statutory Reporting - Web [AMERS]

Completed - The scheduled maintenance has been completed.
Mar 29, 05:30 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 29, 03:00 CDT

Scheduled - ONESOURCE Statutory Reporting - Web [AMERS] will be undergoing scheduled maintenance during Mar 28, 2026 19:30 EDT to Mar 29, 2026 06:30 EDT.
Mar 29, 02:52 CDT

ONESOURCE Statutory Reporting - Web [AMERS]

Completed - The scheduled maintenance has been completed.
Mar 29, 02:30 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 28, 18:30 CDT

Scheduled - ONESOURCE Statutory Reporting - Web [AMERS] will be undergoing scheduled maintenance during Mar 28, 2026 19:30 EDT to Mar 29, 2026 03:30 EDT.
Mar 27, 10:23 CDT

Mar 28, 2026

ONESOURCE Statutory Reporting - Web [APAC]

Completed - The scheduled maintenance has been completed.
Mar 28, 13:00 CDT

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

Scheduled - ONESOURCE Statutory Reporting - Web [APAC] will be undergoing scheduled maintenance during Mar 28, 2026 21:00 AEDT to Mar 29, 2026 05:00 AEDT.
Mar 27, 10:22 CDT

ONESOURCE Statutory Reporting - Legacy [EMEA]

Completed - The scheduled maintenance has been completed.
Mar 28, 01:30 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 27, 19:30 CDT

Scheduled - ONESOURCE Statutory Reporting - Legacy [EMEA] will be undergoing scheduled maintenance during Mar 28, 2026 00:30 GMT to Mar 28, 2026 06:30 GMT.
Mar 27, 05:01 CDT

Mar 27, 2026

ONESOURCE Trusts [APAC]

Completed - The scheduled maintenance has been completed.
Mar 27, 14:30 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 27, 10:30 CDT

Scheduled - ONESOURCE TRUSTS [APAC] will undergo scheduled maintenance and will be unavailable from Saturday, March 28th 02:30 AEDT to 06:30 AEDT.
Mar 25, 23:49 CDT

ONESOURCE Corporate Tax NextGen [APAC]

Completed - The scheduled maintenance has been completed.
Mar 27, 14:30 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 27, 10:30 CDT

Scheduled - ONESOURCE Corporate Tax NextGen [APAC] will undergo scheduled maintenance and will be unavailable from Saturday, March 28th 02:30 AEDT to 06:30 AEDT.
Mar 25, 23:48 CDT

ONESOURCE Fringe Benefits Tax

Completed - The scheduled maintenance has been completed.
Mar 27, 10:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 27, 06:00 CDT

Scheduled - ONESOURCE Fringe Benefits Tax will be unavailable from Friday March 27th 22:00 AEDT to Saturday March 28th 02:00 AEDT
Mar 25, 00:02 CDT

UAT - ONESOURCE Platform Emergency Maintenance

Completed - The scheduled maintenance has been completed.
Mar 27, 04:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 27, 02:00 CDT

Scheduled - ONESOURCE Platform will be undergoing an emergency maintenance in UAT on March 27, 02:00 AM CST - 04:00 AM CST. This maintenance is required to ensure optimal performance and reliability.
ONESOURCE Platform will be available during this maintenance.

We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team.

Thank you for your cooperation.
Mar 26, 16:58 CDT

ONESOURCE Income Tax Maintenance

Completed - The scheduled maintenance has been completed.
Mar 27, 01:30 CDT

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

Scheduled - ONESOURCE Income Tax will be undergoing maintenance on Friday, March 27th between 12:00am – 1:30am CT
Mar 16, 16:23 CDT

Mar 26, 2026

ONESOURCE GTM - IP : Issue with Content Integration

Resolved - The nightly refresh job has been completed and the Content Integration feature is working .
Mar 26, 22:31 CDT

Investigating - We are currently experiencing an delay with the Content Integration feature with our nightly refresh job did not complete as expected. Our teams are actively working to resolve this and expect the refresh to be completed later today, within approximately 9–10 hours.
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.”
Mar 26, 09:34 CDT

ONESOURCE Statutory Reporting - Web [AMERS]

Completed - The scheduled maintenance has been completed.
Mar 26, 22:30 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 26, 20:30 CDT

Scheduled - ONESOURCE Statutory Reporting - Web [AMERS] will be undergoing scheduled maintenance during Mar 26, 2026 21:30 EST to Mar 26, 2026 23:30 EST.
Mar 25, 07:22 CDT

ONESOURCE Global Trade - Emergency Maintenance for US AWS Environment

Resolved - The emergency maintenance has been completed
Mar 26, 22:28 CDT

Update - The emergency maintenance is currently in progress. We will provide updates as necessary.
Mar 26, 20:56 CDT

Investigating - ONESOURCE Global Trade will be undergoing emergency maintenance tonight March 26th starting at 9.30 PM EST in the US AWS environment to address some important vulnerabilities.
This maintenance will run until 1:30 AM EST, and during this maintenance window clients can expect intermittent down times of up to 10 minutes.
Mar 26, 15:40 CDT

ONESOURCE Corporate Tax NextGen [EMEA]

Completed - The scheduled maintenance has been completed.
Mar 26, 21:30 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 26, 17:30 CDT

Scheduled - ONESOURCE Corporate Tax NextGen [EMEA] will undergo scheduled maintenance and will be unavailable from Thursday, March 26th 22:30 GMT to Friday, March 27th 02:30 GMT
Mar 26, 01:12 CDT

ONESOURCE Global Trade - Emergency Maintenance for EU AWS Environment

Resolved - The emergency maintenance has been completed.
Mar 26, 20:55 CDT

Update - The emergency maintenance has been completed.
Mar 26, 20:53 CDT

Investigating - ONESOURCE Global Trade will be undergoing emergency maintenance tonight March 26th starting at 5.30PM EST in the EU AWS environment to address some important vulnerabilities.
This maintenance will run until 9.30 PM EST, and during this maintenance window clients can expect intermittent down times of up to 10 minutes.
Mar 26, 15:36 CDT

ONESOURCE Statutory Reporting - Web [EMEA]

Completed - The scheduled maintenance has been completed.
Mar 26, 20:30 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 26, 18:30 CDT

Scheduled - ONESOURCE Statutory Reporting - Web [EMEA] will be undergoing scheduled maintenance during Mar 26, 2026 23:30 GMT to Mar 27, 2026 01:30 GMT.
Mar 25, 07:21 CDT

Delay in Data for reports and analytics service in AMER PROD

Resolved - This incident has been resolved.
Mar 26, 16:07 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.
Mar 26, 12:58 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.
Mar 26, 05:00 CDT

ONESOURCE Statutory Reporting - Web [APAC]

Completed - The scheduled maintenance has been completed.
Mar 26, 08:30 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 26, 06:30 CDT

Scheduled - ONESOURCE Statutory Reporting - Web [APAC] will be undergoing scheduled maintenance during Mar 26, 2026 22:30 AEDT to Mar 27, 2026 00:30 AEDT.
Mar 25, 07:19 CDT

Mar 25, 2026

Delay in Data for Reports and Analytics service in AMER PROD

Resolved - This incident has been resolved.
Mar 25, 21:17 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.
Mar 25, 17:26 CDT

Infrastructure Instability across servers

Resolved - This incident has been resolved.
Mar 25, 09:24 CDT

Identified - To resolve some infrastructure instability, we are performing some emergency maintenance. This emergency maintenance may cause temporary performance degradation for a subset of clients. This degradation could last for 30 minutes following the maintenance which will occur between 3/24/2026 2:30pm and 3/24/2026 3:00pm
Mar 24, 14:59 CDT

ONESOURCE Determination – Configuration API Version 2026.2 Production Release Information (AMERS Region)

Completed - The scheduled maintenance has been completed.
Mar 25, 08:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 25, 04:00 CDT

Scheduled - ONESOURCE Determination – Configuration API Version 2026.2 is being deployed in the AMERS Production environment. No downtime is expected during this deployment window.
Mar 16, 17:12 CDT

Mar 24, 2026

Intermittent Latency Observed for Tax Calculation REST API Across AMER, EMEA, OCI UAT/PROD

Resolved - Dear Customers,

We experienced intermittent latencies with the Tax Calculation REST APIs in ONESOURCE Indirect Tax Determination across the AMER, EMEA, and OCI in both UAT and PROD environments between 01:03 PM and 01:08 PM CST on March 24.

The issue has now been mitigated.

We apologize for any inconvenience this may have caused and appreciate your understanding and patience. We are actively looking into the root cause. If you have any questions, please contact Customer Support.
Mar 24, 14:05 CDT

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

Further updates will be provided here as soon as we have more information. If you have any questions, please contact Customer Support.
Mar 24, 13:51 CDT

ONESOURCE Pagero E-Invoicing integration for Oracle Fusion CMK release version 2.0.0.0 March 24th, 2026

Completed - The scheduled maintenance has been completed.
Mar 24, 10:45 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 24, 10:40 CDT

Scheduled - The package of E-Invoicing Oracle Fusion CMK Release 2.0.0.0 is released.
March 24th, 2026
Mar 24, 10:38 CDT

ONESOURCE IDT Determination Enterprise Cloud - Backend Maintenance in the PROD Environment (AMER-AWS) – Important Update

Completed - The scheduled maintenance has been completed.
Mar 24, 10:30 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 24, 10:25 CDT

Scheduled - Dear Valued Customers,

The maintenance activity planned for the ONESOURCE Determination Enterprise Cloud platform in the PROD AWS environment has been postponed from its original date on April 01, 2026 10:00 AM, to complete additional validation, prioritizing platform stability and minimizing any potential disruption.

The revised dates for this maintenance will be provided soon.

Please get in touch with the Thomson Reuters customer support team with any questions.

Thank you,
ONESOURCE Indirect Tax Product Management
Mar 24, 10:20 CDT

Intermittent failures on ONESOURCE Global Trade - Latam Webservices

Resolved - A fix has been implemented and we are monitoring the results.
Mar 23, 21:15 BRT

Dear Customers,
We experienced intermittent issue with Integration Webservices feature in the ONESOURCE Global Trade -Latam in the Production environment between 7:30 AM BRT and 9:30 PM BRT on March 23th. The issue is already mitigated now.
We apologize for any inconvenience and appreciate your understanding and patience.
Mar 24, 08:32 CDT

Update - We are continuing to investigate this issue.
Mar 24, 07:35 CDT

Investigating - We are currently experiencing intermittent issues with the Integration Webservices feature with our ONESOURCE Global Trade - Latam 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.
Mar 23, 13:19 CDT

ONESOURCE Determination – Configuration API Version 2026.2 Production Release Information (EMEA Region)

Completed - The scheduled maintenance has been completed.
Mar 24, 08:00 CDT

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

Scheduled - ONESOURCE Determination – Configuration API Version 2026.2 is being deployed in the EMEA Production environment. No downtime is expected during this deployment window.
Mar 16, 17:12 CDT

ONESOURCE Determination Enterprise Cloud– Version 2026.02 Release Information (PROD EMEA environment)

Completed - The scheduled maintenance has been completed.
Mar 24, 07:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 24, 03:00 CDT

Scheduled - ONESOURCE Determination Enterprise Cloud– Version 2026.02 is being deployed in the PROD EMEA environment on March 24, 2026. Your access to the tax calculation services and the application will not be interrupted.
Feb 27, 03:41 CST

ONESOURCE Tax Provision (AMERS)

Completed - The scheduled maintenance has been completed.
Mar 24, 02:00 CDT

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

Scheduled - ONESOURCE Tax Provision will be undergoing release and maintenance activities on March 23-24, 2026.
Mar 16, 11:08 CDT

Mar 23, 2026

ONESOURCE Tax Provision (EMEA)

Completed - The scheduled maintenance has been completed.
Mar 23, 17:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 23, 15:00 CDT

Scheduled - ONESOURCE Tax Provision will be undergoing release and maintenance activities on March 23 2026
Mar 16, 11:07 CDT

ONESOURCE Trust Tax Maintenance

Completed - The scheduled maintenance has been completed.
Mar 23, 16:35 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 23, 15:01 CDT

Scheduled - We will be undergoing scheduled maintenance during this time.
Mar 23, 15:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 23, 15:00 CDT

Scheduled - We will be undergoing scheduled maintenance during this time.
Mar 23, 14:44 CDT

Intermittent failures while generating reports - AMER PROD

Resolved - This incident has been resolved.
Mar 23, 13:17 CDT

Monitoring - A fix has been implemented and we are monitoring the results.
Mar 13, 13:04 CDT

Update - Dear Customers,

We experienced intermittent issue with Reports & Analytics feature in the ONESOURCE Indirect Tax Determination - AMER Production environment between 5:30 AM ET and 10:30 AM ET on March 13th. The issue is already mitigated now.

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

Further details will be provided in the formal RCA. If you have any questions, please contact Customer Support.
Mar 13, 11:39 CDT

Investigating - Intermittent Issues: We are currently experiencing intermittent issues with the Reporting and analytics feature with our NextGen Reporting and analytics service.
Mar 13, 10:01 CDT

Mar 22, 2026

ONESOURCE GTM – AWS Maintenance

Completed - The scheduled maintenance has been completed.
Mar 22, 17:00 CDT

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

Scheduled - Thomson Reuters will be performing scheduled maintenance on Sunday, March 22nd, 2026 beginning at 1 AM Eastern time and will conclude by Sunday, March 22nd, 2026 at 6 PM Eastern time.

The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.

If you have any questions or concerns, please contact Customer Support.
Jan 20, 13:11 CST

ONESOURCE Statutory Reporting - Legacy [EMEA]

Completed - The scheduled maintenance has been completed.
Mar 22, 12:00 CDT

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

Scheduled - ONESOURCE Statutory Reporting - Legacy [EMEA] will be undergoing a change as we will be moving our Production environment from our current London data center (LHR2) to our Wokingham (LHR3) data center from 21 March 2026 to 22 March 2026 (Timings TBD)
Feb 24, 09:43 CST

ONESOURCE Trust Tax System Maintenance Scheduled for March 21-22 (AMERS)

Completed - The scheduled maintenance has been completed.
Mar 22, 10:00 CDT

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

Scheduled - Access to ONESOURCE Trust Tax and ONESOURCE Trust Tax Insight applications will be suspended from 8:00 P.M. (CT) on Saturday, March 21, 2026, until 10:00 A.M. (CT) on Sunday, March 22, 2026. We appreciate your understanding while we perform this necessary maintenance.
Mar 20, 04:31 CDT

ONESOURCE Corporate Tax - Legacy [EMEA]

Completed - The scheduled maintenance has been completed.
Mar 22, 07:30 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 20, 19:30 CDT

Update - ONESOURCE Corporate Tax - Legacy [EMEA] will be undergoing a change as we will be moving our Production environment from our current London data centre (LHR2) to our Wokingham (LHR3) data centre from Saturday 21st March 00:30 GMT to Sunday 22nd March 12:30 GMT.
Mar 10, 04:11 CDT

Scheduled - ONESOURCE Corporate Tax - Legacy [EMEA] will be undergoing a change as we will be moving our Production environment from our current London data centre (LHR2) to our Wokingham (LHR3) data centre from 21 March 2026 to 22 March 2026 (Timings TBD).
Mar 2, 09:40 CST

ONESOURCE Tax Information Reporting System Maintenance 21st March 2026 (AMERS)

Completed - The scheduled maintenance has been completed.
Mar 22, 07:00 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 21, 22:00 CDT

Scheduled - 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.
Nov 20, 05:21 CST

Mar 21, 2026

ONESOURCE Indirect Tax calculation failures in REST API - AMER PROD

Resolved - Tax calculation failures affected REST API transactions in AMER PROD from 9:45 to 9:50 a.m. CST. The systems have auto-healed, and we are investigating the root cause. We will complete the RCA and share additional details soon.
Mar 21, 11:52 CDT

Identified - We experienced tax calculation failures for our REST API transactions in AMER PROD between 9:45 AM - 9:50 AM CST. We are actively monitoring the situation and will soon update on the latest status.
Mar 21, 10:10 CDT

ONESOURCE Income Tax Maintenance

Completed - The scheduled maintenance has been completed.
Mar 21, 11:18 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 21, 04:18 CDT

Scheduled - ONESOURCE Income Tax will continue with maintenance until 11:00 AM central time on Saturday March 21. During this maintenance you will notice service unavailability and degraded performance.
Mar 21, 04:17 CDT

GoSystem Tax RS Maintenance

Completed - The scheduled maintenance has been completed.
Mar 21, 11:15 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 21, 04:15 CDT

Scheduled - GoSystem Tax RS will continue with maintenance until 11:00 AM central time on Saturday March 21. During this maintenance you will notice service unavailability and degraded performance.
Mar 21, 04:14 CDT

GoSystem Tax RS Maintenance

Completed - The scheduled maintenance needs to be extended until 8:00 AM central time.
Mar 21, 08:00 CDT

In progress - Scheduled maintenance is currently in progress and will continue until 8:00 AM central time.
Mar 20, 22:00 CDT

Scheduled - GoSystem Tax RS will be undergoing maintenance on Friday, March 20th from 10:00 PM to 4:00 AM central time. During this maintenance you will notice service unavailability and degraded performance.
Mar 20, 12:16 CDT

ONESOURCE Tax Provision

Completed - The scheduled maintenance has been completed.
Mar 21, 07:30 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 20, 22:30 CDT

Scheduled - Dear Customers,

Please be aware that ONESOURCE Tax Provision will be undergoing server maintenance on March 20-21, 2026.

The maintenance activities will take place on:
March 20-21, 2026, 10:30 PM to 7:30 AM CT (AMERS)

Users may experience degraded performance in ONESOURCE Tax Provision due to these activities.

Thank you for your continued support, and we look forward to providing you with the best possible tax provision solution.

Warmest regards,
ONESOURCE Tax Provision Product Management
Mar 4, 10:46 CST

ONESOURCE Data Query and Data Query-Reporting Maintenance

Completed - The scheduled maintenance has been completed.
Mar 21, 04:01 CDT

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

Scheduled - ONESOURCE Data Query/Data Query-Reporting will be undergoing maintenance from Friday March 20th 10:00pm – Saturday, March 21st 4:00am CT, users may see a degradation in the application while we are performing the maintenance.
Mar 20, 13:30 CDT

ONESOURCE Income Tax Maintenance

Completed - The scheduled maintenance needs to be extended until 8:00 AM central time.
Mar 21, 04:00 CDT

In progress - Scheduled maintenance is currently in progress and will continue until 8:00 AM central time.
Mar 20, 22:01 CDT

Scheduled - ONESOURCE Income Tax will be undergoing maintenance on Friday, March 20th from 10:00 PM to 4:00 AM central time. During this maintenance you will notice service unavailability and degraded performance.
Mar 20, 12:21 CDT

Mar 20, 2026

ONESOURCE E-Invoicing Release Notes (OEI2026.R1.0.0)- Thursday 19th March 2026

Completed - The scheduled maintenance has been completed.
Mar 20, 11:01 CDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 20, 11:00 CDT

Scheduled - ONESOURCE E-Invoicing Release Notes (OEI2026.R1.0.0)- Thursday 19th March 2026
Mar 20, 10:31 CDT

ONESOURCE Income Tax Maintenance

Completed - The scheduled maintenance has been completed.
Mar 20, 01:30 CDT

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

Scheduled - ONESOURCE Income Tax will be undergoing maintenance on Friday, March 20th between 12:00am – 1:30am CT
Mar 16, 16:23 CDT

Scheduled Maintenance

ONESOURCE Oracle Fusion Rate to Regime Content release for INDIA APRIL 2026 Apr 2, 2026 12:30 - Apr 3, 2026 12:30 CDT

ONESOURCE Trusts [APAC] Apr 3, 2026 10:30-16:30 CDT

ONESOURCE Corporate Tax NextGen [APAC] Apr 3, 2026 10:30-16:30 CDT

ONESOURCE GTM – AWS Maintenance Apr 5, 2026 00:00-17:00 CDT

ONESOURCE Determination – Enterprise cloud Version 2026.02.02 Production Release Information (EMEA Region) Apr 6, 2026 04:00-08:00 CDT

ONESOURCE Determination – Enterprise cloud Version 2026.02.02 Production Release Information (AMERS Region) Apr 6, 2026 06:00-10:00 CDT

ONESOURCE Fringe Benefits Tax Apr 6, 2026 06:00-10:00 CDT

ONESOURCE Determination Anywhere 2026.02 PROD patch (AMER) Apr 6, 2026 08:00-12:00 CDT

ONESOURCE GTM – AWS Maintenance Apr 19, 2026 00:00-17:00 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 GTM – AWS Maintenance May 3, 2026 00:00-17:00 CDT

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

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

ONESOURCE GTM – AWS Maintenance Jun 7, 2026 00:00-17:00 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 GTM – AWS Maintenance Jun 21, 2026 00:00-17:00 CDT

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

ONESOURCE GTM – AWS Maintenance Jul 5, 2026 00:00-17:00 CDT

ONESOURCE GTM – AWS Maintenance Jul 19, 2026 00:00-17:00 CDT

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Past Incidents

ONESOURCE Oracle Fusion Rate to Regime Content release for INDIA APRIL 2026 Apr `2`, `2026` `12:30` - Apr `3`, `2026` `12:30` CDT

ONESOURCE Trusts [APAC] Apr `3`, `2026` `10:30`-`16:30` CDT

ONESOURCE Corporate Tax NextGen [APAC] Apr `3`, `2026` `10:30`-`16:30` CDT

ONESOURCE GTM – AWS Maintenance Apr `5`, `2026` `00:00`-`17:00` CDT

ONESOURCE Determination – Enterprise cloud Version 2026.02.02 Production Release Information (EMEA Region) Apr `6`, `2026` `04:00`-`08:00` CDT

ONESOURCE Determination – Enterprise cloud Version 2026.02.02 Production Release Information (AMERS Region) Apr `6`, `2026` `06:00`-`10:00` CDT

ONESOURCE Fringe Benefits Tax Apr `6`, `2026` `06:00`-`10:00` CDT

ONESOURCE Determination Anywhere 2026.02 PROD patch (AMER) Apr `6`, `2026` `08:00`-`12:00` CDT

ONESOURCE GTM – AWS Maintenance Apr `19`, `2026` `00:00`-`17:00` 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 GTM – AWS Maintenance May `3`, `2026` `00:00`-`17:00` CDT

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

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

ONESOURCE GTM – AWS Maintenance Jun `7`, `2026` `00:00`-`17:00` 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 GTM – AWS Maintenance Jun `21`, `2026` `00:00`-`17:00` CDT

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

ONESOURCE GTM – AWS Maintenance Jul `5`, `2026` `00:00`-`17:00` CDT

ONESOURCE GTM – AWS Maintenance Jul `19`, `2026` `00:00`-`17:00` CDT

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

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

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

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

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

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

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

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

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

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

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

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

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

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