Delay in Data for reports and analytics service in AMER UAT
Update - Reports and Analytics Service in AMER UAT is currently experiencing delay of around 8 hours. We are working on the data catch up, will notify once complete.
Sep 07, 2025 - 08:22 CDT
Identified - Reports and Analytics Service in AMER UAT is currently experiencing delay of around 6 hours. We are working on the data catch up, will notify once complete.
Sep 07, 2025 - 02:11 CDT
ONESOURCE GTM – AWS Maintenance
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 07, 2025 - 00:00 CDT
Scheduled - Thomson Reuters will be performing scheduled maintenance on Sunday, September 7th, 2025 beginning at 1 AM Eastern time and will conclude by Sunday, September 7th, 2025 at 6 PM Eastern time.

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

If you have any questions or concerns, please contact Customer Support.
Sep 7, 2025 00:00-17:00 CDT
Failures while authentication token validation and generation in AMER and EMEA region
Update - Between 11:35 PM to 11:41 PM ET on 03rd September, We observed issues with the Authentication Service feature with our REST API Tax calculation service in AMER, EMEA, OCI-Prod & UAT, and issue is resolved.
Sep 03, 2025 - 23:10 CDT
Monitoring - Between 11:35 PM to 11:41 PM ET on 03rd September, We observed issues with the Authentication Service feature with our REST API Tax calculation service in AMER, EMEA, OCI-Prod & UAT. Issue got mitigated now, we're closely monitoring the situation.

We apologize for any inconvenience and appreciate your understanding and patience.
Sep 03, 2025 - 23:00 CDT
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 Under Maintenance
Global Trade Content Under Maintenance
Global Trade - LATAM Operational
Global Trade - pwd by Integration Point Under Maintenance
Govt Connectivity BE - PLDA Under Maintenance
Govt Connectivity DE - ATLAS Under Maintenance
Govt Connectivity FR - DELTA Under Maintenance
Govt Connectivity MX - SAAI/COVE Under Maintenance
Govt Connectivity NL - AGS Under Maintenance
Govt Connectivity UK - CHIEF/CDS Under Maintenance
Govt Connectivity US - ABI/AES Under Maintenance
GTM Platform Under Maintenance
Implementation Environment Under Maintenance
ONESOURCE Classifier Operational
Transports AS2 Under Maintenance
Transports Client Interchange Web Service Under Maintenance
Transports FTP Under Maintenance
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
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 INDIA SEPTEMBER 2025 Sep 2, 2025 12:30 - Sep 3, 2025 12:30 CDT

ONESOURCE Oracle Fusion Rate to Regime Content release Content for INDIA region for SEPTEMBER 2025 has been released. It is available in both Integration UI and customer portal for download.
Posted on Sep 02, 2025 - 03:17 CDT

ONESOURCE Oracle Fusion Rate to Regime Content release for AEM SEPTEMBER 2025 Sep 3, 2025 12:30 - Sep 4, 2025 12:30 CDT

ONESOURCE Oracle Fusion Rate to Regime Content release Content for AEM region for SEPTEMBER 2025 has been released. It is available in both Integration UI and customer portal for download.
Posted on Sep 03, 2025 - 05:03 CDT

ONESOURCE Statutory Reporting - Web [EMEA] Sep 7, 2025 19:30 - Sep 8, 2025 01:30 CDT

ONESOURCE Statutory Reporting - Web [EMEA] will be undergoing scheduled maintenance during Sep 8, 2025 01:30 BST to Sep 8, 2025 07:30 BST.
Posted on Sep 03, 2025 - 10:36 CDT

ONESOURCE Determination Anywhere – Version 2025.05 Release Information (PROD environment) Sep 16, 2025 05:00-09:00 CDT

ONESOURCE Determination Anywhere – Version 2025.05 is being deployed in the PROD environment on September 16th, 2025. Your access to the tax calculation services and the application will not be interrupted.
Posted on Aug 13, 2025 - 16:24 CDT

ONESOURCE Determination – Configuration API Version 2025.5 Production Release Information (EMEA Region) Sep 16, 2025 05:00-08:00 CDT

ONESOURCE Determination – Configuration API Version 2025.5 is being deployed in the EMEA Production environment. No downtime is expected during this deployment window.
Posted on Sep 03, 2025 - 10:47 CDT

ONESOURCE Determination Enterprise Cloud– Version 2025.05 Release Information (PROD EMEA environment) Sep 16, 2025 08:00-12:00 CDT

ONESOURCE Determination Enterprise Cloud– Version 2025.05 is being deployed in the PROD EMEA environment on September 16, 2025. Your access to the tax calculation services and the application will not be interrupted.
Posted on Aug 26, 2025 - 16:38 CDT

Planned Database Maintenance for ONESOURCE Determination Enterprise Cloud (AWS AMER and EMEA) Sep 20, 2025 07:30-10:30 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 Aug 07, 2025 - 16:02 CDT

Scheduled System Maintenance Sep 20, 2025 11:00-19:00 CDT

Tracker will be undergoing maintenance and unavailable on Saturday 09/20/2025 , from 9:00 AM PST to 5:00 PM PST.
Posted on Jan 23, 2025 - 12:06 CST

ONESOURCE GTM – AWS Maintenance Sep 21, 2025 00:00-17:00 CDT

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.
Posted on Aug 26, 2025 - 12:01 CDT

ONESOURCE Determination Enterprise Cloud– Version 2025.05 Release Information (PROD AMER environment) Sep 23, 2025 03:00-07:00 CDT

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.
Posted on Aug 26, 2025 - 16:38 CDT

ONESOURCE Determination – Configuration API Version 2025.5 Production Release Information (AMERS Region) Sep 23, 2025 05:00-08:00 CDT

ONESOURCE Determination – Configuration API Version 2025.5 is being deployed in the AMERS Production environment. No downtime is expected during this deployment window.
Posted on Sep 03, 2025 - 10:44 CDT

ONESOURCE Determination Anywhere – Version 2025.05 Release Information (PROD environment) Sep 23, 2025 05:00-09:00 CDT

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.
Posted on Aug 26, 2025 - 16:38 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

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

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
Sep 7, 2025

Unresolved incidents: Delay in Data for reports and analytics service in AMER UAT, ONESOURCE GTM – AWS Maintenance.

Sep 6, 2025

No incidents reported.

Sep 5, 2025
ONESOURCE Indirect Compliance Maintenance Event (R2025.09) planned on Friday 5th September 2025
Completed - The scheduled maintenance has been completed.
Sep 5, 13:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 5, 09:00 CDT
Scheduled - Database maintenance event in progress to deploy R2025.09

There will be limited service during this deployment.
Aug 26, 04:11 CDT
ONESOURCE Oracle Fusion Rate to Regime Content release for US SEPTEMBER 2025
Completed - The scheduled maintenance has been completed.
Sep 5, 12:30 CDT
Scheduled - ONESOURCE Oracle Fusion Rate to Regime Content release Content for US region for SEPTEMBER 2025 has been released. It is available in both Integration UI and customer portal for download.
Sep 4, 09:35 CDT
ONESOURCE Statutory Reporting - Web [APAC]
Completed - The scheduled maintenance has been completed.
Sep 5, 11:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 5, 05:00 CDT
Scheduled - ONESOURCE Statutory Reporting - Web [APAC] will be undergoing scheduled maintenance during Sep 5, 2025 20:00 AEST to Sep 6, 2025 02:00 AEST.
Sep 3, 10:35 CDT
Delay in Data for reports and analytics service in AMER UAT
Resolved - This incident has been resolved.
Sep 5, 06:53 CDT
Update - Reports and Analytics Service in AMER UAT is currently experiencing delay of around 10 hours. We are working on the data catch up, will notify once complete.
Sep 5, 02:12 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 4, 22:37 CDT
ONESOURCE Indirect Compliance Maintenance Event (R2025.09) planned on Thursday 4th September 2025
Completed - The scheduled maintenance has been completed.
Sep 5, 02:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 4, 22:00 CDT
Scheduled - Database maintenance event in progress to deploy R2025.09

There will be limited service during this deployment.
Aug 26, 04:09 CDT
ONESOURCE Income Tax
Completed - The scheduled maintenance has been completed.
Sep 5, 01:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 5, 00:00 CDT
Scheduled - ONESOURCE Income Tax will be undergoing maintenance on Friday, Sept 5th between 12:00am – 1:30am CT
Sep 3, 13:13 CDT
Sep 4, 2025

Unresolved incident: Failures while authentication token validation and generation in AMER and EMEA region.

Sep 3, 2025
ONESOURCE Determination – Configuration API Version 2025.5 Release Information (EMEA  Region)
Completed - The scheduled maintenance has been completed.
Sep 3, 11:01 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 3, 11:00 CDT
Scheduled - Dear Valued Customers,

We are excited to announce the release of ONESOURCE Determination – Configuration API Version 2025.5 in the UAT and Production environments in the EMEA region. The release will take place on

UAT – September 02nd, 2025, at 6:00 AM EST.
PROD – September 16th, 2025, at 6:00 AM EST.

No downtime is expected during this deployment window.

To learn more about the impact please refer to the Release Schedule section of the Configuration APIs release notes.

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

Warmest regards,
ONESOURCE Indirect Tax Product Management
Sep 3, 10:46 CDT
ONESOURCE Determination – Configuration API Version 2025.5 UAT Release Information (AMERS Region)
Completed - The scheduled maintenance has been completed.
Sep 3, 11:01 CDT
Scheduled - Dear Valued Customers,

We are excited to announce the release of ONESOURCE Determination – Configuration API Version 2025.5 in the UAT and Production environments in the AMERS region. The release will take place on

UAT – September 03rd, 2025, at 6:00 AM EST.
PROD – September 23rd, 2025, at 6:00 AM EST.

No downtime is expected during this deployment window.

To learn more about the impact please refer to the Release Schedule section of the Configuration APIs release notes.

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

Warmest regards,
ONESOURCE Indirect Tax Product Management
Sep 3, 10:43 CDT
Rendering certain fonts when viewing tax return PDFs in browser
Resolved - This incident has been resolved.
Sep 3, 08:44 CDT
Update - Google has released a fix in Chromium that addresses the issue rendering certain fonts when viewing tax return PDFs in browsers using Chromium (such as Chrome and Edge). Again, we apologize for any inconvenience and appreciate your understanding and patience while we worked to resolve this issue.
Aug 27, 19:01 CDT
Update - In GoSystem we are currently experiencing an issue rendering certain fonts when viewing tax return PDFs in browsers that use a recently updated version of Chromium (such as Chrome and Edge).

Update: We expect Google to release a fix to Chromium that will address this issue in the first week of September. We will keep you informed of any updates to this timeline. In the meantime, we advise users to open tax return PDFs in a PDF reader such as Adobe Acrobat Reader, where they are rendering correctly. We apologize for any inconvenience and appreciate your understanding and patience
Aug 19, 22:44 CDT
Investigating - We are currently experiencing an issue with the rendering of tax returns in certain versions of Chromium feature with our GoSystem 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.
Aug 14, 17:11 CDT
Sep 2, 2025
ONESOURCE Determination Anywhere – Version 2025.05 Release Information (UAT environment)
Completed - The scheduled maintenance has been completed.
Sep 2, 09:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 2, 05:00 CDT
Scheduled - ONESOURCE Determination Anywhere – Version 2025.05 is being deployed in the UAT environment on September 02, 2025. Your access to the tax calculation services and the application will not be interrupted.
Aug 26, 16:34 CDT
ONESOURCE Determination Enterprise Cloud– Version 2025.05 Release Information (UAT AMER environment)
Completed - The scheduled maintenance has been completed.
Sep 2, 07:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 2, 03:00 CDT
Scheduled - ONESOURCE Determination Enterprise Cloud– Version 2025.05 is being deployed in the UAT AMER environment on September 02, 2025. Your access to the tax calculation services and the application will not be interrupted.
Aug 26, 16:34 CDT
Sep 1, 2025
ONESOURCE Fringe Benefits Tax
Completed - The scheduled maintenance has been completed.
Sep 1, 10:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 1, 06:00 CDT
Scheduled - ONESOURCE Fringe Benefits Tax will be undergoing maintenance on Monday September 1st 21:00 AEST to Tuesday September 2nd 01:00 AEST i.e. Monday September 1st 06:00 CDT. to 10:00 CDT.
Aug 29, 02:00 CDT
Aug 31, 2025

No incidents reported.

Aug 30, 2025

No incidents reported.

Aug 29, 2025
ONESOURCE Determination Enterprise Cloud– Version 2025.05 Release Information (UAT EMEA environment)
Completed - The scheduled maintenance has been completed.
Aug 29, 12:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 29, 08:00 CDT
Scheduled - ONESOURCE Determination Enterprise Cloud– Version 2025.05 is being deployed in the UAT EMEA environment on August 29, 2025. Your access to the tax calculation services and the application will not be interrupted.
Aug 26, 16:33 CDT
ONESOURCE Statutory Reporting - Legacy [EMEA]
Completed - The scheduled maintenance has been completed.
Aug 29, 01:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 28, 21:30 CDT
Scheduled - ONESOURCE Statutory Reporting - Legacy [EMEA] will be undergoing scheduled maintenance during Aug 29, 2025 03:30 BST to Aug 29, 2025 07:30 BST.
Aug 28, 03:44 CDT
Delay in Data for reports and analytics service in AMER PROD
Resolved - This incident has been resolved.
Aug 29, 00:14 CDT
Investigating - Processing Delayed: We are currently experiencing delays in processing Indirect Tax with our Reports and Analytics Enterprise Cloud service.

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.
Aug 28, 20:45 CDT
Aug 28, 2025
ONESOURCE Statutory Reporting - Legacy [APAC]
Completed - The scheduled maintenance has been completed.
Aug 28, 13:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 28, 09:00 CDT
Scheduled - ONESOURCE Statutory Reporting - Legacy [APAC] will be undergoing scheduled maintenance during Aug 29, 2025 00:00 AEST to Aug 29, 2025 04:00 AEST.
Aug 28, 03:43 CDT
OSPI Platform – AMER Emergency maintenance in August 2025
Completed - The scheduled maintenance has been completed.
Aug 28, 06:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 28, 00:00 CDT
Scheduled - ONESOURCE Platform will be performing emergency maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services may experience some issues. In such cases, we recommend trying after some time. We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team. Thank you for your cooperation.
Aug 27, 22:48 CDT
Delay in Data for reports and analytics service in AMER PROD
Resolved - This incident has been resolved.
Aug 28, 03:43 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.
Aug 27, 22:48 CDT
Update - Reports and Analytics Service in AMER PROD is currently experiencing delay of around 5 hours. We are working on the data catch up, will notify once complete.
Aug 27, 20:17 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.
Aug 27, 09:02 CDT
Update - Reports and Analytics Service in AMER PROD is currently experiencing delay of around 10 hours. We are working on the data catch up, will notify once complete.
Aug 27, 02:58 CDT
Update - Reports and Analytics Service in AMER PROD is currently experiencing delay of around 9 hours. We are working on the data catch up, will notify once complete.
Aug 26, 20:56 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.
Aug 26, 15:07 CDT
ONESOURCE Tax Information Reporting Additional Fixes Deployment Scheduled for 8/27
Completed - The scheduled maintenance has been completed.
Aug 28, 02:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 27, 19:00 CDT
Scheduled - Additional Fixes to 25.03 release will be deployed between 7:00 P.M. (CT) on Wednesday, August 27, 2025, to 2:00 A.M. (CT) on Thursday, August 28, 2025. System availability and API's may be affected during release time.
Aug 27, 03:08 CDT
Aug 27, 2025
ONESOURCE Oracle Fusion Rate to Regime Content release for CANADA SEPTEMBER 2025
Completed - The scheduled maintenance has been completed.
Aug 27, 06:32 CDT
Scheduled - ONESOURCE Oracle Fusion Rate to Regime Content release Content for CANADA region for SEPTEMBER 2025 has been released. It is available in both Integration UI and customer portal for download.
Aug 26, 03:59 CDT
ONESOURCE Oracle Fusion Rate to Regime Content release for CANADA AUGUST 2025
Completed - The scheduled maintenance has been completed.
Aug 27, 06:32 CDT
Scheduled - ONESOURCE Oracle Fusion Rate to Regime Content release Content for CANADA region for AUGUST 2025 has been released. It is available in both Integration UI and customer portal for download.
Jul 23, 04:06 CDT
Aug 26, 2025
ONESOURCE Determination – Configuration API Version 2025.05 Release Information (AMERS and EMEA Region) DELAYED
Completed - The scheduled maintenance has been completed.
Aug 26, 11:50 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 26, 11:45 CDT
Scheduled - The ONESOURCE Determination Configuration API 2025.05 release in UAT has been delayed from its original date due to additional testing requirements for optimal performance and reliability.

Our team is addressing these items and will provide a new UAT release date once quality assurance is complete.

Thank you for your understanding and continued support.

ONESOURCE Indirect Tax Product Management
Aug 26, 11:43 CDT
ONESOURCE Determination – Configuration API Version 2025.05
Completed - The scheduled maintenance has been completed.
Aug 26, 11:01 CDT
Scheduled - The ONESOURCE Determination Configuration API 2025.05 release in UAT has been delayed from its original date due to additional testing requirements for optimal performance and reliability.

Our team is addressing these items and will provide a new UAT release date once quality assurance is complete.

Thank you for your understanding and continued support.
ONESOURCE Indirect Tax Product Management
Aug 26, 10:57 CDT
ONESOURCE API Administration August 2025 release – AMER
Completed - The scheduled maintenance has been completed.
Aug 26, 05:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 26, 00:00 CDT
Update - Rescheduled - ONESOURCE API Administration will undergo scheduled maintenance to enhance system performance, reliability, and UI features. Some services may be temporarily affected; please try again later if you encounter issues. We apologize for any inconvenience and appreciate your patience. For urgent assistance during this period, contact our support team. Thank you for your cooperation.

For more on API Administration, see the Guide
Aug 20, 13:22 CDT
Scheduled - ONESOURCE API Administration will undergo scheduled maintenance to enhance system performance, reliability, and UI features. Some services may be temporarily affected; please try again later if you encounter issues. We apologize for any inconvenience and appreciate your patience. For urgent assistance during this period, contact our support team. Thank you for your cooperation.

For more on API Administration, see the Guide
Aug 12, 23:02 CDT
ONESOURCE Statutory Reporting - Web [AMERS]
Completed - The scheduled maintenance has been completed.
Aug 26, 01:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 25, 19:30 CDT
Scheduled - ONESOURCE Statutory Reporting - Web [AMERS] will be undergoing scheduled maintenance during Aug 25, 2025 20:30 EDT to Aug 26, 2025 02:30 EDT.
Aug 25, 02:23 CDT
Aug 25, 2025
ONESOURCE API Administration Aug 2025 release – EMEA
Completed - The scheduled maintenance has been completed.
Aug 25, 21:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 25, 16:00 CDT
Update - Rescheduled - Scheduled
ONESOURCE API Administration will undergo scheduled maintenance to enhance system performance, reliability, and UI features. Some services may be temporarily affected; please try again later if you encounter issues. We apologize for any inconvenience and appreciate your patience. For urgent assistance during this period, contact our support team. Thank you for your cooperation.

For more on API Administration, see the Guide
Aug 20, 13:22 CDT
Scheduled - ONESOURCE API Administration will undergo scheduled maintenance to enhance system performance, reliability, and UI features. Some services may be temporarily affected; please try again later if you encounter issues. We apologize for any inconvenience and appreciate your patience. For urgent assistance during this period, contact our support team. Thank you for your cooperation.

For more on API Administration, see the Guide
Aug 12, 23:00 CDT
ONESOURCE API Administration August 2025 release – APAC
Completed - The scheduled maintenance has been completed.
Aug 25, 12:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 25, 07:00 CDT
Update - Rescheduled - ONESOURCE API Administration will undergo scheduled maintenance to enhance system performance, reliability, and UI features. Some services may be temporarily affected; please try again later if you encounter issues. We apologize for any inconvenience and appreciate your patience. For urgent assistance during this period, contact our support team. Thank you for your cooperation.

For more on API Administration, see the Guide
Aug 20, 13:22 CDT
Scheduled - ONESOURCE API Administration will undergo scheduled maintenance to enhance system performance, reliability, and UI features. Some services may be temporarily affected; please try again later if you encounter issues. We apologize for any inconvenience and appreciate your patience. For urgent assistance during this period, contact our support team. Thank you for your cooperation.

For more on API Administration, see the Guide
Aug 12, 22:59 CDT
ONESOURCE API Administration Backend Services August 2025 release in all Production regions
Completed - The scheduled maintenance has been completed.
Aug 25, 06:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 25, 01:00 CDT
Update - Rescheduled - ONESOURCE API Administration will be performing scheduled maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services may experience some issues. In such cases, we recommend trying after some time. We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team. Thank you for your cooperation.

To explore the capabilities of API Administration, please refer to the Guide
Aug 20, 13:22 CDT
Scheduled - ONESOURCE API Administration will be performing scheduled maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services may experience some issues. In such cases, we recommend trying after some time. We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team. Thank you for your cooperation.

To explore the capabilities of API Administration, please refer to the Guide
Aug 12, 22:57 CDT
OSPI Platform – AMER Major release for August 2025
Completed - The scheduled maintenance has been completed.
Aug 25, 06:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 25, 00:00 CDT
Scheduled - ONESOURCE Platform will be performing scheduled maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services 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.
Jul 22, 22:45 CDT
ONESOURCE API Administration Backend Services and UI August 2025 release in UAT.
Completed - The scheduled maintenance has been completed.
Aug 25, 03:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 24, 22:00 CDT
Update - We will be undergoing scheduled maintenance during this time.
Aug 20, 22:38 CDT
Update - Rescheduled - ONESOURCE API Administration will undergo scheduled maintenance to enhance system performance, reliability, and UI features. Some services may be temporarily affected; please try again later if you encounter issues. We apologize for any inconvenience and appreciate your patience. For urgent assistance during this period, contact our support team. Thank you for your cooperation. For more on API Administration, see the Guide
Aug 20, 13:23 CDT
Scheduled - ONESOURCE API Administration will undergo scheduled maintenance to enhance system performance, reliability, and UI features. Some services may be temporarily affected; please try again later if you encounter issues. We apologize for any inconvenience and appreciate your patience. For urgent assistance during this period, contact our support team. Thank you for your cooperation. For more on API Administration, see the Guide
Aug 12, 22:55 CDT
Aug 24, 2025
Authorization failures during RestAPI tax calculation requests - AMER PROD
Resolved - This incident has been resolved.
Aug 24, 22:33 CDT
Monitoring - Between 8:32 AM to 8:36 AM ET on 22nd August, we observed issues with the Authentication Service feature with our REST API Tax calculation service in Amer Prod. Issue got mitigated now, we're closely monitoring the situation. We apologize for any inconvenience and appreciate your understanding and patience.
Aug 22, 08:21 CDT
ONESOURCE Trust Tax System Maintenance Scheduled for August 23-24 (AMERS)
Completed - The scheduled maintenance has been completed.
Aug 24, 10:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 23, 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, August 23, 2025 until 10:00 A.M. (CT) on Sunday, August 24, 2025. We appreciate your understanding while we perform this necessary maintenance.
Aug 22, 09:18 CDT
ONESOURCE Tax Information Reporting System Maintenance 23rd August 2025 (AMERS)
Completed - The scheduled maintenance has been completed.
Aug 24, 07:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 23, 22:00 CDT
Scheduled - ONESOURCE Tax Information Reporting will be unavailable from 10:00 P.M. (CT) on 23rd August 2025 until 06:00 A.M. (CT) on 24th August 2025 for scheduled maintenance.
Aug 20, 09:14 CDT
ONESOURCE Income Tax Maintenance
Completed - The scheduled maintenance has been completed.
Aug 24, 06:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 24, 00:01 CDT
Scheduled - ONESOURCE Income Tax will be undergoing maintenance on Sunday, August 24th between 12:00am – 6:00am CT, users may see a brief degradation in the application while we are performing the maintenance.
Jul 21, 15:34 CDT
GoSystem Tax RS Maintenance
Completed - The scheduled maintenance has been completed.
Aug 24, 06:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 24, 00:00 CDT
Scheduled - GoSystem Tax RS will be undergoing maintenance on Sunday, August 24th between 12:00am – 6:00am CT, users may see a brief degradation in the application while we are performing the maintenance.
Jul 21, 15:30 CDT
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