Problem rendering certain fonts in GoSystem when viewing tax return PDFs in browser
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, 2025 - 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, 2025 - 17:11 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 Operational
Global Trade Content Operational
Global Trade - LATAM Operational
Global Trade - pwd by Integration Point Operational
Govt Connectivity BE - PLDA Operational
Govt Connectivity DE - ATLAS Operational
Govt Connectivity FR - DELTA Operational
Govt Connectivity MX - SAAI/COVE Operational
Govt Connectivity NL - AGS Operational
Govt Connectivity UK - CHIEF/CDS Operational
Govt Connectivity US - ABI/AES Operational
GTM Platform Operational
Implementation Environment Operational
ONESOURCE Classifier Operational
Transports AS2 Operational
Transports Client Interchange Web Service Operational
Transports FTP Operational
Indirect Tax Operational
ONESOURCE Determination Enterprise Cloud (AWS AMER) ? Operational
ONESOURCE Determination Enterprise Cloud (AWS EMEA) ? Operational
ONESOURCE Determination Enterprise Cloud (OCI AMER) ? Operational
ONESOURCE Determination Anywhere (AWS AMER) ? Operational
ONESOURCE Determination Anywhere (OCI AMER) ? Operational
Configuration API (AWS AMER) Operational
Configuration API (AWS EMEA) Operational
Configuration API (OCI AMER) Operational
ONESOURCE Determination Original Cloud (AMER) ? Operational
ONESOURCE Determination Original Dedicated Cloud (AMER) ? Operational
ONESOURCE Determination Original Dedicated Cloud (EMEA) ? Operational
Certificate Manager Original Cloud ? Operational
Certificate Manager Enterprise Cloud ? Operational
Reports and Analytics Enterprise Cloud ? Operational
Reporting - Original Cloud ? Operational
US Tax Content ? Operational
Canada Tax Content ? Operational
International Tax Content ? Operational
Content Extract ? Operational
Fast Sales Tax ? Operational
ONESOURCE Property Tax ? Operational
ONESOURCE Sales and Use Tax Compliance (AMER) ? Operational
ONESOURCE Indirect Compliance (APAC) ? Operational
APAC (web) E-filing Manager (Indirect Compliance) Operational
ONESOURCE Indirect Compliance (EMEA) ? Operational
EMEA (web) E-filing Manager (Indirect Compliance) Operational
ONESOURCE Indirect Compliance (UAT) ? Operational
ONESOURCE E-Invoicing (PROD) ? Operational
ONESOURCE E-Invoicing (UAT) ? Operational
ONESOURCE Determination - On Premise ? Operational
ONESOURCE Determination (APAC) ? Operational
IDT Integrations ? Operational
Address Validation Service Operational
BigCommerce Operational
Coupa Operational
Data File Integrator - Enterprise Cloud Operational
Data File Integrator - Original Cloud Operational
Microsoft Dynamics 365 - Commerce Cloud Operational
Microsoft Dynamics 365FOE Operational
Microsoft Dynamics AX 2012 Operational
Microsoft Dynamics GP Operational
NetSuite Legacy/Direct Operational
NetSuite SuiteTax Operational
Oracle EBS R12 Operational
Oracle Fusion Tax Cloud - 1.x Operational
Oracle Fusion Tax Cloud - 2.x Operational
Salesforce Subscription Management Operational
SAP 5.2B Basic (RFC) Operational
SAP Ariba - Cloud Operational
SAP Ariba - OnPremise Operational
SAP Ariba - Original cloud Operational
SAP Business One Operational
SAP C4/HANA Commerce Cloud Operational
SAP Global Next Operational
SAP Global Tax Service Operational
SAP US Tax S4/HANA Cloud Operational
Trust & Info Rptg Operational
AMERS NRA - FNIS & Users Website Operational
AMERS Tax Information Reporting Operational
AMERS Trust Tax Operational
AMERS Trust Tax Insight Operational
Legal Solutions Operational
AMERS LEGAL ONE Operational
Legal Tracker - US Operational
Legal Tracker - AUS Operational
Legal Tracker - UK Operational
Legal Tracker - GER Operational
Legal Tracker - CAN Operational
Risk Solutions Operational
AMERS Compliance Learning Operational
AMERS Oden Online (State Rules and Regulations) Operational
AMERS Oden Policy Terminator Operational
AMERS Oden Track (web) Operational
AMERS Regulatory Intelligence Operational
ANZ Compliance Learning Operational
APAC Compliance Learning Operational
APAC Regulatory Intelligence Operational
EMEA Compliance Learning Operational
EMEA Regulatory Intelligence Operational
Tax Brazil Operational
Checkpoint Corporate Operational
ONESOURCE DFe Operational
ONESOURCE Tax Analyser Operational
Tax One for SAP® solutions Operational
Tax Brazil - Tax One Operational
Tax One - Application [AMERS] Operational
Tax One - Application [UAT AMERS] Operational
Sending and Receiving Files [AMERS] Operational
Sending and Receiving Files [UAT AMERS] Operational
File/Email Processing [AMERS] Operational
File/Email Processing [UAT AMERS] Operational
ECF/REINF (messaging/integration) [AMERS] Operational
ECF/REINF (messaging/integration) [UAT AMERS] Operational
Tax Automation [AMERS] Operational
Tax Automation [UAT AMERS] Operational
OBI [AMERS] Operational
OBI [UAT AMERS] Operational
Tax One - Application [EMEA] Operational
Tax One - Application [UAT EMEA] Operational
Sending and Receiving Files [EMEA] Operational
Sending and Receiving Files [UAT EMEA] Operational
File/Email Processing [EMEA] Operational
File/Email Processing [UAT EMEA] Operational
ECF/REINF (messaging/integration) [EMEA] Operational
ECF/REINF (messaging/integration) [UAT EMEA] Operational
Tax Automation [EMEA] Operational
Tax Automation [UAT EMEA] Operational
OBI [EMEA] Operational
OBI [UAT EMEA] Operational
Customer Support Operational
Case Management Dashboard Operational
Platform Operational
Workflow Tools Operational
Data Tools Operational
Direct Tax Operational
Global Trade Operational
Indirect Tax Operational
Trust & Info Rptg Operational
Legal Solutions Operational
Risk Solutions Operational
Tax Brazil Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance

Scheduled Maintenance

ONESOURCE Oracle Fusion Rate to Regime Content release for CANADA AUGUST 2025 Jul 23, 2025 12:30 - Jul 24, 2025 12:30 CDT

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.
Posted on Jul 23, 2025 - 04:06 CDT

ONESOURCE Oracle Fusion Rate to Regime Content release for LATAM AUGUST 2025 Aug 20, 2025 12:30 - Aug 21, 2025 12:30 CDT

ONESOURCE Oracle Fusion Rate to Regime Content release Content for LATAM region for AUGUST 2025 has been released. It is available in both Integration UI and customer portal for download.
Posted on Aug 20, 2025 - 08:22 CDT

ONESOURCE Trust Tax 25.04 Scheduled Release and System Downtime for Aug 20-21 (AMERS) Aug 20, 2025 20:00-21:00 CDT

Access to all ONESOURCE Trust Tax applications will be suspended beginning at 8:00 P.M. (CT) on Wednesday, August 20, 2025. The 25.04 release of ONESOURCE Trust Tax will be available no later than 12:00 A.M. (CT) on Thursday, August 21.
Posted on Aug 19, 2025 - 15:41 CDT

ONESOURCE Tax Provision [EMEA] Aug 21, 2025 15:00-17:00 CDT

ONESOURCE Tax Provision will be undergoing release and maintenance activities on August 21, 2025.
Posted on Aug 19, 2025 - 14:42 CDT

OSPI Platform – EMEA Major release for August 2025 Aug 21, 2025 16:00-22:00 CDT

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

Thank you for your cooperation.
Posted on Jul 22, 2025 - 22:44 CDT

ONESOURCE Data Query Aug 21, 2025 16:00-20:00 CDT

ONESOURCE Data Query will be undergoing maintenance on Thursday, Aug 21st between 4:00pm – 8:00pm CT
Posted on Aug 15, 2025 - 11:44 CDT

ONESOURCE Tax Provision [AMERS] Aug 21, 2025 23:00 - Aug 22, 2025 02:00 CDT

ONESOURCE Tax Provision will be undergoing release and maintenance activities on August 21-22, 2025.
Posted on Aug 19, 2025 - 14:42 CDT

ONESOURCE Income Tax Aug 22, 2025 00:00-01:30 CDT

ONESOURCE Income Tax will be undergoing maintenance on Friday, Aug 22nd between 12:00am – 1:30am CT
Posted on Aug 15, 2025 - 11:44 CDT

Planned Database Maintenance for ONESOURCE Determination Enterprise Cloud (AWS - AMER and EMEA) Aug 23, 2025 07:30-10:30 CDT

ONESOURCE Determination: Planned maintenance event to upgrade databases being deployed in the UAT environment in the AWS – AMER and EMEA regions. Downtime is expected on UI and configuration components during this window. Tax calculation services will remain operational.
Posted on Aug 07, 2025 - 16:03 CDT

Scheduled System Maintenance Aug 23, 2025 11:00-19:00 CDT

Tracker will be undergoing maintenance and unavailable on Saturday 08/23/2025 , from 9:00 AM PST to 5:00 PM PST.
Posted on Jan 23, 2025 - 11:57 CST

ONESOURCE Tax Information Reporting System Maintenance 23rd August 2025 (AMERS) Aug 23, 2025 22:00 - Aug 24, 2025 07:00 CDT

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.
Posted on Aug 20, 2024 - 09:14 CDT

GoSystem Tax RS Maintenance Aug 24, 2025 00:00-06:00 CDT

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.
Posted on Jul 21, 2025 - 15:30 CDT

ONESOURCE Income Tax Maintenance Aug 24, 2025 00:00-06:00 CDT

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.
Posted on Jul 21, 2025 - 15:34 CDT

ONESOURCE API Administration Backend Services and UI August 2025 release in UAT. Aug 24, 2025 22:00 - Aug 25, 2025 02:00 CDT

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
Posted on Aug 12, 2025 - 22:55 CDT

OSPI Platform – AMER Major release for August 2025 Aug 25, 2025 00:00-06:00 CDT

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

Thank you for your cooperation.
Posted on Jul 22, 2025 - 22:45 CDT

ONESOURCE API Administration Backend Services August 2025 release in all Production regions Aug 25, 2025 01:00-06:00 CDT

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
Posted on Aug 12, 2025 - 22:57 CDT

ONESOURCE API Administration Aug 2025 release – EMEA Aug 25, 2025 16:00-21:00 CDT

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
Posted on Aug 12, 2025 - 23:00 CDT

ONESOURCE API Administration August 2025 release – AMER Aug 26, 2025 00:00-05:00 CDT

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
Posted on Aug 12, 2025 - 23:02 CDT

ONESOURCE API Administration August 2025 release – APAC Aug 27, 2025 07:00-12:00 CDT

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
Posted on Aug 12, 2025 - 22:59 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

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 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
Aug 20, 2025
OSPI Platform – APAC Major release for August 2025
Completed - The scheduled maintenance has been completed.
Aug 20, 13:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 20, 07:00 CDT
Scheduled - ONESOURCE Platform will be performing scheduled maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services 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, 22:43 CDT
ONESOURCE Oracle Fusion Rate to Regime Content release for BRAZIL AUGUST 2025
Completed - The scheduled maintenance has been completed.
Aug 20, 12:30 CDT
Scheduled - ONESOURCE Oracle Fusion Rate to Regime Content release Content for BRAZIL region for AUGUST 2025 has been released. It is available in both Integration UI and customer portal for download.
Aug 19, 03:37 CDT
Calculation Module – Intermittent Access Disruption
Resolved - This incident has been resolved.
Aug 20, 11:11 CDT
Investigating - We are currently experiencing intermittent issues with the calculation feature. Users may encounter an 'Unknown Error' banner when attempting to open or work within the calculation module.
Aug 20, 09:48 CDT
Aug 19, 2025
Delay in Data for reports and analytics service in AMER UAT
Resolved - This incident has been resolved.
Aug 19, 07:23 CDT
Update - Reports and Analytics Service in AMER UAT is currently experiencing delay of 4 hours. We are working on the data catch up, will notify once complete
Aug 18, 22:13 CDT
Investigating - Reports and Analytics Service in AMER UAT is currently experiencing delay of 5 hours. We are working on the data catch up, will notify once complete.
Aug 18, 15:10 CDT
OSPI Platform – UAT Major release for August 2025
Completed - The scheduled maintenance has been completed.
Aug 19, 06:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 19, 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, 22:42 CDT
Delay in Data for reports and analytics service in AMER PROD
Resolved - This incident has been resolved.
Aug 19, 04:25 CDT
Update - Reports and Analytics Service in AMER PROD is currently experiencing delay of 4 hours. We are working on the data catch up, will notify once complete.
Aug 18, 23:33 CDT
Investigating - Reports and Analytics Service in AMER PROD is currently experiencing delay of 6 hours. We are working on the data catch up, will notify once complete.
Aug 18, 22:58 CDT
Aug 18, 2025
Tax calculations failures using REST API's in EMEA Production environment
Resolved - This incident has been resolved.
Aug 18, 15:23 CDT
Monitoring - We experienced issues with Tax calculations services using REST API's in EMEA Production environment, which was temporarily unavailable between 3:53 AM and 3:58 AM ET on 13th August, 2025. 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 13, 08:16 CDT
Intermittent failure while Authentication Token Generation and Validation in Amers region
Resolved - This incident has been resolved.
Aug 18, 15:18 CDT
Monitoring - We are currently experiencing intermittent issues with the Authentication Service feature with our Tax calculation service in Amer Prod and UAT. 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 18, 10:02 CDT
Onesource GTM - SSL/Wildcard Certificate Update
Completed - Please note this certificate has now been updated. Please follow the instructions below to get the new certificate.

Steps to update:
1) To retrieve the updated certificate, you navigate to the endpoint in a browser. (example: https://CLIENTNAME.integrationpoint.net)
2) In the address bar there will be a padlock to the left of the URL. Click on the padlock
3) This will give you a drop down, choose Connection is secure option.
4) Then click the certificate icon in the upper right corner . This will give you a pop-up.
5) Click Details tab, and then export in the bottom right corner to download/export the updated certificate.
Aug 18, 10:41 CDT
Scheduled - We will be updating the Integration Point wildcard/SSL certificate on August 18, 2025, at 8 PM Eastern. After this update, if you have certificates hard coded in your ERP or feed systems, you will need to download the new certificate. Please wait until after 8 pm Eastern on the 18th to attempt this download.

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

PLEASE NOTE – the new certificate you download/export should have an expiration date of 2026. If it doesn’t, please try again as you may have tried to download before we were able to deploy the new certificate.
Aug 4, 16:25 CDT
Intermittent failure while Authentication Token Generation and Validation in Amers region
Resolved - This incident has been resolved.
Aug 18, 09:27 CDT
Investigating - We are currently experiencing intermittent issues with the Authentication Service feature with our Tax calculation service in Amer Prod and UAT. 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 18, 05:19 CDT
Aug 17, 2025
ONESOURCE GTM – AWS Maintenance
Completed - The scheduled maintenance has been completed.
Aug 17, 09:53 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 17, 08:53 CDT
Scheduled - Thomson Reuters will be performing scheduled maintenance on Sunday, August 17th, 2025 beginning at 1 AM Eastern time and will conclude by Sunday, August 17th, 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.
Jul 21, 08:55 CDT
GoSystem Tax RS Maintenance
Completed - The scheduled maintenance has been completed.
Aug 17, 06:01 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 17, 00:00 CDT
Scheduled - GoSystem Tax RS will be undergoing maintenance on Sunday, August 17th between 12:00am – 6:00am CT, users may see a brief degradation in the application while we are performing the maintenance.
Jul 21, 15:29 CDT
ONESOURCE Income Tax Maintenance
Completed - The scheduled maintenance has been completed.
Aug 17, 06:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 17, 00:01 CDT
Scheduled - ONESOURCE Income Tax will be undergoing maintenance on Sunday, August 17th between 12:00am – 6:00am CT, users may see a brief degradation in the application while we are performing the maintenance.
Jul 21, 15:33 CDT
Aug 16, 2025
2025 Disaster Recovery Testing for ONESOURCE Determination – Original Cloud and Original Dedicated Cloud (AMER region)
Completed - The scheduled maintenance has been completed.
Aug 16, 03:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 15, 23:00 CDT
Scheduled - Disaster Recovery testing is in progress. Please click here to learn about the timing of the testing, and additional details related to this event.
Jul 3, 15:57 CDT
Aug 15, 2025
Some GST users are getting authentication errors when logging in
Resolved - This incident has been resolved.
Aug 15, 11:16 CDT
Investigating - We are currently experiencing intermittent issues with the Gosystem Tax login error feature, some customers are receiving an error message when trying to login in. 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 15, 10:54 CDT
Delay in Data for reports and analytics service in AMER PROD
Resolved - This incident has been resolved.
Aug 15, 07:46 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 15, 03:56 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.
Aug 14, 21:47 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 14, 15:49 CDT
Aug 14, 2025
ONESOURCE Oracle Fusion Rate to Regime Content release for EMEA AUGUST 2025
Completed - The scheduled maintenance has been completed.
Aug 14, 12:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 13, 12:30 CDT
Scheduled - ONESOURCE Oracle Fusion Rate to Regime Content release Content for EMEA region for AUGUST 2025 has been released. It is available in both Integration UI and customer portal for download.
Aug 13, 11:49 CDT
Aug 13, 2025
Intermittent issues with the ONESOURCE Income Tax and GoSystem chat support
Resolved - This incident has been resolved.
Aug 13, 12:28 CDT
Investigating - Intermittent Issues: We are currently experiencing intermittent issues with the Chat Support feature with our ONESOURCE Income Tax and GoSystem.
Aug 11, 04:28 CDT
OSPI Platform – AMER Maintenance
Completed - The scheduled maintenance has been completed.
Aug 13, 06:01 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 12, 21:00 CDT
Scheduled - ONESOURCE Platform will be performing emergency maintenance for systems modernization. During this time, user administration functionality, such as creating or modifying users may be temporarily affected. If you experience any issues, please try again later.

We apologize for the inconvenience and appreciate your patience. For urgent assistance, contact our support team.

Thank you for your understanding.
Aug 11, 16:14 CDT
OSP Platform – AMER Emergency Maintenance
Completed - The scheduled maintenance has been completed.
Aug 13, 06:01 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 13, 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 11, 15:50 CDT
ONESOURCE Tax Information Release OTIR Release 25.03 12th August 2025 (AMERS)
Completed - The scheduled maintenance has been completed.
Aug 13, 06:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 12, 19:00 CDT
Scheduled - ONESOURCE Tax Information Reporting Release 25.03 will be installed from 7:00 P.M. (CT) on 12th August 2025 until 06:00 A.M. (CT) on 13th August 2025. System availability and API's may be affected during release time.
Aug 20, 09:29 CDT
Aug 12, 2025
OSP Platform – EMEA Emergency Maintenance
Completed - The scheduled maintenance has been completed.
Aug 12, 20:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 12, 14:00 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 11, 15:50 CDT
OSP Platform – APAC Emergency Maintenance
Completed - The scheduled maintenance has been completed.
Aug 12, 13:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 12, 07:00 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 11, 15:50 CDT
ONESOURCE Fringe Benefits Tax
Completed - The scheduled maintenance has been completed.
Aug 12, 10:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 12, 06:01 CDT
Scheduled - ONESOURCE Fringe Benefits Tax will be undergoing maintenance to address an issue with PDF generated versions of the FBT return from Tuesday August 12th 21:00 AEST to Wednesday August 13th 01:00 AEST i.e. Tuesday August 12th 06:00 CDT. to 10:00 CDT.
Aug 11, 02:54 CDT
Tax calculation failures for both SOAP & REST APIs in OCI AMER Production environment
Resolved - This incident has been resolved.
Aug 12, 09:07 CDT
Monitoring - Dear Customers,

There were tax calculation failures for both SOAP & REST APIs on Aug 08, 2025 between 1:06 PM and 1:08 PM CDT in the OCI AMERS region. This issue has been resolved. We are working on finding root cause and will share more details soon.

If you have any questions please reach out to Thomson Reuters Customer Support.

Thank you for your understanding and patience.
Aug 8, 14:29 CDT
OSP Platform – UAT Emergency Maintenance
Completed - The scheduled maintenance has been completed.
Aug 12, 06:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 12, 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 11, 15:50 CDT
Aug 11, 2025
GoSystem Tax RS Maintenance
Completed - The scheduled maintenance has been completed.
Aug 11, 06:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 10, 00:00 CDT
Scheduled - GoSystem Tax RS will be undergoing maintenance on Sunday, August 10th 12:00am – Monday, August 11th 6:00am CT, users may see a brief degradation in the application while we are performing the maintenance.
Jul 21, 15:29 CDT
AMER - ONESOURCE Platform Security Maintenance Application server patching in August 2025.
Completed - The scheduled maintenance has been completed.
Aug 11, 06:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 11, 00:00 CDT
Scheduled - ONESOURCE Platform will be undergoing maintenance in AMER on Monday, August 11, 12:00 AM - 6:00 AM CST.
Users may experience degraded performance from 12:00 AM CST to 12:30 AM CST and 02:00 AM CST to 02:30 AM CST only.

In case of any issues, we recommend the users to please retry.

We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Jul 17, 14:40 CDT
Aug 10, 2025
AMER - ONESOURCE Platform Security Maintenance Database server patching in August 2025.
Completed - The scheduled maintenance has been completed.
Aug 10, 07:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 10, 01:30 CDT
Scheduled - ONESOURCE Platform will be undergoing maintenance in AMER on Sunday August 10, 01:30 AM - 07:30 AM CST.
ONESOURCE Platform will be unavailable from Sunday August 10, 4:00 AM CST to 4:20 AM CST.

We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Jul 16, 17:27 CDT
EMEA - ONESOURCE Platform Security Maintenance Database server patching in August 2025.
Completed - The scheduled maintenance has been completed.
Aug 10, 02:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 9, 20:00 CDT
Scheduled - ONESOURCE Platform will be undergoing maintenance in EMEA on Saturday, August 09, 08:00 PM – Sunday, August 10, 02:00 AM CST.
ONESOURCE Platform will be unavailable from Saturday August 09,10:00 PM CST to 10:15 PM CST.

We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Jul 16, 17:27 CDT
Aug 9, 2025
Delay in Data for reports and analytics service in AMER PROD
Resolved - This incident has been resolved.
Aug 9, 23:22 CDT
Update - Reports and Analytics Service in AMER PROD is currently experiencing delay of around 16 hours. We are working on the data catch up, will notify once complete.
Aug 9, 19:04 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 8, 20:25 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.
Aug 8, 10:45 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.
Aug 8, 04:54 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.
Aug 7, 22:43 CDT
Update - Reports and Analytics Service in AMER PROD is currently experiencing delay of around 13 hours. We are working on the data catch up, will notify once complete.
Aug 7, 16:39 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.
Aug 7, 09:46 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 7, 02:06 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.
Aug 6, 19:14 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 6, 08:32 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 6, 02:21 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 5, 19:07 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.
Aug 5, 13:25 CDT
APAC - ONESOURCE Platform Security Maintenance Database server patching in August 2025.
Completed - The scheduled maintenance has been completed.
Aug 9, 14:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 9, 08:00 CDT
Scheduled - ONESOURCE Platform will be undergoing maintenance in APAC on Saturday, August 09, 08:00 AM - 02:00 PM CST.
ONESOURCE Platform will be unavailable from Saturday August 09, 10:00 AM CST to 10:15 AM CST.

We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Jul 17, 14:42 CDT
UAT - ONESOURCE Platform Security Maintenance Database server patching in August 2025.
Completed - The scheduled maintenance has been completed.
Aug 9, 07:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 9, 02:30 CDT
Scheduled - ONESOURCE Platform will be undergoing maintenance in UAT on Saturday, August 09, 02:30 AM - 07:30 AM CST.
ONESOURCE Platform will be unavailable from Saturday, August 09, 4:00 AM CST to 4:15 AM CST.

We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Jul 17, 14:41 CDT
ONESOURCE Indirect Tax performing Disaster Recovery (DR) Testing for the ONESOURCE Data File Integrator - Enterprise Cloud on AWS - 09 August 2025.
Completed - The scheduled maintenance has been completed.
Aug 9, 06:04 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 9, 00:02 CDT
Scheduled - ONESOURCE Indirect Tax is performing disaster recovery (DR) testing for the ONESOURCE Indirect Tax for Data File Integrator on August 09, 2025.

This DR testing will impact the ONESOURCE Determination – Enterprise cloud customers who are hosted into the following environments:
• AWS AMER region
• AWS EMEA region

Please review the details below and share the information with your IT department.

The ONESOURCE Determination user interface will be inaccessible starting from 12:01 AM. As a result, the integration configuration & logs will be inaccessible until the completion of the maintenance.

All batches will be on hold (not processed) during the entire maintenance window and will resume automatically after that.

Thomson Reuters maintains the status of all the ONESOURCE applications on the System Page. Once the testing is completed, the indicators next to the products that participate in the DR testing will be changed from red to green, indicating the application is up and running in Production.
Aug 5, 23:07 CDT
ONESOURCE Indirect Tax performing Disaster Recovery (DR) Testing for the ONESOURCE Address Validation Service on AWS - 09 August 2025.
Completed - The scheduled maintenance has been completed.
Aug 9, 06:04 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 9, 00:04 CDT
Scheduled - ONESOURCE Indirect Tax is performing disaster recovery (DR) testing for the ONESOURCE Address Validation Service on August 09, 2025.

This DR testing will impact the ONESOURCE Determination – Enterprise cloud customers who are hosted into the following environments:
• AWS AMER region
• AWS EMEA region

Please review the details below and share the information with your IT department.

There is no downtime for the address validation services.

Thomson Reuters maintains the status of all the ONESOURCE applications on the System Page. Once the testing is completed, the indicators next to the products that participate in the DR testing will be changed from red to green, indicating the application is up and running in Production.
Aug 5, 23:05 CDT
ONESOURCE Indirect Tax performing Disaster Recovery (DR) Testing for the ONESOURCE Global Tax for SAP Ariba Solutions on OCI - 09 August 2025.
Completed - The scheduled maintenance has been completed.
Aug 9, 06:04 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 9, 00:01 CDT
Scheduled - ONESOURCE Indirect Tax is performing disaster recovery (DR) testing for the ONESOURCE Global Tax for SAP Ariba Solutions on August 09, 2025.

This DR testing will impact the ONESOURCE Determination – Enterprise cloud customers who are hosted into the following environments:
• OCI AMER region

Please review the details below and share the information with your IT department.

The ONESOURCE Determination user interface will be inaccessible starting from 12:01 AM. As a result, the integration configuration & logs will be inaccessible until the completion of the maintenance.

The tax calculation service for Ariba also will not be available during the maintenance window.

Thomson Reuters maintains the status of all the ONESOURCE applications on the System Page. Once the testing is completed, the indicators next to the products that participate in the DR testing will be changed from red to green, indicating the application is up and running in Production.
Aug 5, 22:58 CDT
ONESOURCE Indirect Tax performing Disaster Recovery (DR) Testing for the ONESOURCE Integration for Oracle Fusion Tax on AWS - 09 August 2025.
Completed - The scheduled maintenance has been completed.
Aug 9, 06:03 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 9, 00:03 CDT
Scheduled - ONESOURCE Indirect Tax is performing disaster recovery (DR) testing for the ONESOURCE Integration for Oracle Fusion Tax on August 09, 2025.

This DR testing will impact the ONESOURCE Determination – Enterprise cloud customers who are hosted into the following environments:
• AWS AMER region
• AWS EMEA region

Please review the details below and share the information with your IT department.

The ONESOURCE Determination user interface will be inaccessible starting from 12:01 AM. As a result, the integration configuration & logs will be inaccessible until the completion of the maintenance.

There is no downtime for the online transactions performed on the ERP. All batches will be on hold (not processed) during the entire maintenance window and will resume automatically after that.

Thomson Reuters maintains the status of all the ONESOURCE applications on the System Page. Once the testing is completed, the indicators next to the products that participate in the DR testing will be changed from red to green, indicating the application is up and running in Production.
Aug 5, 23:11 CDT
ONESOURCE Indirect Tax performing Disaster Recovery (DR) Testing for the ONESOURCE Integration for Oracle Fusion Tax on OCI - 09 August 2025.
Completed - The scheduled maintenance has been completed.
Aug 9, 06:03 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 9, 00:03 CDT
Scheduled - ONESOURCE Indirect Tax is performing disaster recovery (DR) testing for the ONESOURCE Integration for Oracle Fusion Tax on August 09, 2025.

This DR testing will impact the ONESOURCE Determination – Enterprise cloud customers who are hosted into the following environments:
• OCI AMER region

Please review the details below and share the information with your IT department.

The ONESOURCE Determination user interface will be inaccessible starting from 12:01 AM. As a result, the integration configuration & logs will be inaccessible until the completion of the maintenance.

The tax calculation for online transactions performed on the ERP also will not be available during the maintenance window. All batches will be on hold (not processed) during the entire maintenance window and will resume automatically after that.

Thomson Reuters maintains the status of all the ONESOURCE applications on the System Page. Once the testing is completed, the indicators next to the products that participate in the DR testing will be changed from red to green, indicating the application is up and running in Production.
Aug 5, 23:12 CDT
ONESOURCE Indirect Tax performing Disaster Recovery (DR) Testing for the ONESOURCE Global Tax Services Integration for SAP on AWS - 09 August 2025.
Completed - The scheduled maintenance has been completed.
Aug 9, 06:03 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 9, 00:01 CDT
Scheduled - ONESOURCE Indirect Tax is performing disaster recovery (DR) testing for the ONESOURCE Global Tax Services Integration for SAP on August 09, 2025.

This DR testing will impact the ONESOURCE Determination – Enterprise cloud customers who are hosted into the following environments:
• AWS AMER region

Please review the details below and share the information with your IT department.

The ONESOURCE Determination user interface will be inaccessible starting from 12:01 AM. As a result, the integration configuration & logs will be inaccessible until the completion of the maintenance.

There is no downtime for the tax calculation services.

Thomson Reuters maintains the status of all the ONESOURCE applications on the System Page. Once the testing is completed, the indicators next to the products that participate in the DR testing will be changed from red to green, indicating the application is up and running in Production.
Aug 5, 22:59 CDT
ONESOURCE Indirect Tax performing Disaster Recovery (DR) Testing for the ONESOURCE Data File Integrator - Enterprise Cloud on OCI - 09 August 2025.
Completed - The scheduled maintenance has been completed.
Aug 9, 06:02 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 9, 00:01 CDT
Scheduled - ONESOURCE Indirect Tax is performing disaster recovery (DR) testing for the ONESOURCE Indirect Tax for Data File Integrator on August 09, 2025.

This DR testing will impact the ONESOURCE Determination – Enterprise cloud customers who are hosted into the following environments:
• OCI AMER region

Please review the details below and share the information with your IT department.

The ONESOURCE Determination user interface will be inaccessible starting from 12:01 AM. As a result, the integration configuration & logs will be inaccessible until the completion of the maintenance.

All batches will be on hold (not processed) during the entire maintenance window and will resume automatically after that.

Thomson Reuters maintains the status of all the ONESOURCE applications on the System Page. Once the testing is completed, the indicators next to the products that participate in the DR testing will be changed from red to green, indicating the application is up and running in Production.
Aug 5, 23:08 CDT
ONESOURCE Indirect Tax performing Disaster Recovery (DR) Testing for the ONESOURCE Global Tax for SAP Ariba Solutions on AWS - 09 August 2025.
Completed - The scheduled maintenance has been completed.
Aug 9, 06:02 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 9, 00:01 CDT
Scheduled - ONESOURCE Indirect Tax is performing disaster recovery (DR) testing for the ONESOURCE Global Tax for SAP Ariba Solutions on August 09, 2025.

This DR testing will impact the ONESOURCE Determination – Enterprise cloud customers who are hosted into the following environments:
• AWS AMER region

Please review the details below and share the information with your IT department.

The ONESOURCE Determination user interface will be inaccessible starting from 12:01 AM. As a result, the integration configuration & logs will be inaccessible until the completion of the maintenance.

There is no downtime for the tax calculation services.

Thomson Reuters maintains the status of all the ONESOURCE applications on the System Page. Once the testing is completed, the indicators next to the products that participate in the DR testing will be changed from red to green, indicating the application is up and running in Production.
Aug 5, 22:54 CDT
2025 Disaster Recovery Testing for ONESOURCE Determination Enterprise Cloud (AWS EMEA)
Completed - The scheduled maintenance has been completed.
Aug 9, 06:02 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 9, 00:02 CDT
Scheduled - Disaster Recovery testing between 12:01 AM CDT and 6 AM CDT. No service interruption expected. Customers hosted in (AWS EMEA) region will continue to have full access to the ONESOURCE Determination tax calculation service and user interface during this DR testing window.
Jul 24, 16:31 CDT
ONESOURCE Indirect Tax performing Disaster Recovery (DR) Testing for the ONESOURCE Indirect Tax Integration for BigCommerce on AWS - 09 August 2025.
Completed - The scheduled maintenance has been completed.
Aug 9, 06:01 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 9, 00:04 CDT
Scheduled - ONESOURCE Indirect Tax is performing disaster recovery (DR) testing for the ONESOURCE Indirect Tax Integration for BigCommerce on August 09, 2025.

This DR testing will impact the ONESOURCE Determination – Enterprise cloud customers who are hosted into the following environments:
• AWS AMER region

Please review the details below and share the information with your IT department.

The ONESOURCE Determination user interface will be inaccessible starting from 12:01 AM. As a result, the integration configuration & logs will be inaccessible until the completion of the maintenance.

There is no downtime for the tax calculation services.

Thomson Reuters maintains the status of all the ONESOURCE applications on the System Page. Once the testing is completed, the indicators next to the products that participate in the DR testing will be changed from red to green, indicating the application is up and running in Production.
Aug 5, 23:09 CDT
ONESOURCE Indirect Tax performing Disaster Recovery (DR) Testing for the ONESOURCE Address Validation Service on OCI - 09 August 2025.
Completed - The scheduled maintenance has been completed.
Aug 9, 06:01 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 9, 00:04 CDT
Scheduled - ONESOURCE Indirect Tax is performing disaster recovery (DR) testing for the ONESOURCE Address Validation Service on August 09, 2025.

This DR testing will impact the ONESOURCE Determination – Enterprise cloud customers who are hosted into the following environments:
• OCI AMER region

Please review the details below and share the information with your IT department.

The Address Validation services will not be available during the maintenance window.

Thomson Reuters maintains the status of all the ONESOURCE applications on the System Page. Once the testing is completed, the indicators next to the products that participate in the DR testing will be changed from red to green, indicating the application is up and running in Production.
Aug 5, 23:06 CDT
2025 Disaster Recovery Testing for ONESOURCE Determination Enterprise Cloud and Determination Anywhere (AWS AMER)
Completed - The scheduled maintenance has been completed.
Aug 9, 06:01 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 9, 00:03 CDT
Scheduled - Disaster Recovery testing between 12:01 AM CDT and 6 AM CDT. Customers hosted in (AWS AMER) region will continue to have full access to the ONESOURCE Determination tax calculation service. The Determination user interface is not available during this DR testing window.
Jul 24, 16:31 CDT
ONESOURCE Indirect Tax performing Disaster Recovery (DR) Testing for the ONESOURCE Indirect Tax Integration for Coupa on AWS - 09 August 2025.
Completed - The scheduled maintenance has been completed.
Aug 9, 06:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 9, 00:02 CDT
Scheduled - ONESOURCE Indirect Tax is performing disaster recovery (DR) testing for the ONESOURCE Indirect Tax Integration for Coupa on August 09, 2025.

This DR testing will impact the ONESOURCE Determination – Enterprise cloud customers who are hosted into the following environments:
• AWS AMER region

Please review the details below and share the information with your IT department.

The ONESOURCE Determination user interface will be inaccessible starting from 12:01 AM. As a result, the integration configuration & logs will be inaccessible until the completion of the maintenance.

There is no downtime for the tax calculation services.

Thomson Reuters maintains the status of all the ONESOURCE applications on the System Page. Once the testing is completed, the indicators next to the products that participate in the DR testing will be changed from red to green, indicating the application is up and running in Production.
Aug 5, 23:10 CDT
2025 Disaster Recovery (DR) Testing for ONESOURCE Determination Enterprise Cloud and Determination Anywhere (OCI AMER)
Completed - The scheduled maintenance has been completed.
Aug 9, 06:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 9, 00:00 CDT
Scheduled - Disaster Recovery testing between 12:01 AM CDT and 6 AM CDT. Customers using OCI in the AMER region will be unable to access the ONESOURCE Determination tax calculation service and the user interface during this 6-hour DR testing window. Tax calculation with Determination Anywhere will not be affected.
Jul 24, 16:31 CDT
2025 Disaster Recovery Testing for ONESOURCE Determination – Original Cloud and Original Dedicated Cloud (AMER region)
Completed - The scheduled maintenance has been completed.
Aug 9, 03:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 8, 23:00 CDT
Scheduled - Disaster Recovery testing is in progress. Please click here to learn about the timing of the testing, and additional details related to this event.
Jul 3, 15:57 CDT
EMEA - ONESOURCE Platform Security Maintenance Application server patching in August 2025.
Completed - The scheduled maintenance has been completed.
Aug 9, 00:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 8, 18:00 CDT
Scheduled - ONESOURCE Platform will be undergoing maintenance in EMEA on Friday, August 08, 06:00 PM – Saturday, August 09, 12:00 AM CST.
Users may experience degraded performance from 06:00 PM CST to 06:30 PM CST and from 08:00 PM CST to 08:30 PM CST only.

In case of any issues, we recommend the users to please retry.

We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Jul 16, 17:27 CDT
Aug 8, 2025
APAC - ONESOURCE Platform Security Maintenance Application server patching in August 2025.
Completed - The scheduled maintenance has been completed.
Aug 8, 13:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 8, 07:00 CDT
Scheduled - ONESOURCE Platform will be undergoing maintenance in APAC on Friday, August 08, 07:00 AM - 01:00 PM CST .
Users may experience degraded performance from 07:00 AM CST to 07:30 AM CST and from 9:00 AM to 09:30 AM CST only.

In case of any issues, we recommend the users to please retry.

We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Jul 16, 17:27 CDT
ONESOURCE Income Tax
Completed - The scheduled maintenance has been completed.
Aug 8, 01:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 8, 00:00 CDT
Scheduled - ONESOURCE Income Tax will be undergoing maintenance on Friday, August 8th between 12:00am – 1:30am CT
Aug 6, 10:14 CDT
Aug 7, 2025
Aug 6, 2025
OSPI Platform – AMER Emergency maintenance in August 2025
Completed - The scheduled maintenance has been completed.
Aug 6, 21:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 6, 15:00 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 6, 13:08 CDT
ONESOURCE Oracle Fusion Rate to Regime Content release for AEM AUGUST 2025
Completed - The scheduled maintenance has been completed.
Aug 6, 12:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 5, 14:00 CDT
Scheduled - ONESOURCE Oracle Fusion Rate to Regime Content release Content for AEM region for AUGUST 2025 has been released. It is available in both Integration UI and customer portal for download.
Aug 5, 13:49 CDT
ONESOURCE Oracle Fusion Rate to Regime Content release for US AUGUST 2025
Completed - The scheduled maintenance has been completed.
Aug 6, 12:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 5, 14:00 CDT
Scheduled - ONESOURCE Oracle Fusion Rate to Regime Content release Content for US region for AUGUST 2025 has been released. It is available in both Integration UI and customer portal for download.
Aug 5, 13:50 CDT
UAT - ONESOURCE Platform Security Maintenance Application server patching in August 2025.
Completed - The scheduled maintenance has been completed.
Aug 6, 06:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 6, 00:00 CDT
Scheduled - ONESOURCE Platform will be undergoing maintenance in UAT on Wednesday, August 06, 12:00 AM - 6:00 AM CST
Users may experience degraded performance from 12:00 AM CST to 12:30 AM CST and 02:00 AM to 02:30 AM CST only.

In case of any issues, we recommend the users to please retry.

We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Jul 16, 17:27 CDT
ONESOURCE Statutory Reporting - Web [EMEA]
Completed - The scheduled maintenance has been completed.
Aug 6, 01:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 5, 19:30 CDT
Scheduled - ONESOURCE Statutory Reporting - Web [EMEA] will be undergoing scheduled maintenance during Aug 6, 2025 01:30 BST to Aug 6, 2025 07:30 BST.
Jul 31, 10:12 CDT
ONESOURCE Statutory Reporting - Web [AMERS]
Completed - The scheduled maintenance has been completed.
Aug 6, 01:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 5, 19:30 CDT
Scheduled - ONESOURCE Statutory Reporting - Web [AMERS] will be undergoing scheduled maintenance during Aug 5, 2025 20:30 EDT to Aug 6, 2025 02:30 EDT.
Jul 31, 10:11 CDT
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