Monitoring - This issue has been mitigated, and we will continue to monitor.
Oct 05, 2026 - 16:03 CDT
Oct 05, 2026 - 16:03 CDT
Investigating - Thomson Reuters is currently investigating an issue that is resulting in intermittent connection issues with the Global Trade Content solution. Clients may not be able to run HTS validations or any other type of validations at this time.
Oct 05, 2026 - 15:00 CDT
Oct 05, 2026 - 15:00 CDT
Monitoring - The issue has been resolved and we are continuing to monitor.
Oct 05, 2026 - 14:43 CDT
Oct 05, 2026 - 14:43 CDT
Identified - Thomson Reuters is aware of an issue with the Global Trade Management system that is affecting multiple areas of the application, including but not limited to FIFO processing, saving shipments, running reports, etc. We are currently working on resolving this issue.
Oct 05, 2026 - 13:53 CDT
Oct 05, 2026 - 13:53 CDT
WorkFlow Tools
Operational
AMERS Calendar
Operational
AMERS Calendar Classic
Operational
AMERS FileRoom
Operational
AMERS WorkFlow
Operational
AMERS WorkFlow Manager Classic
Operational
APAC Calendar
Operational
APAC Calendar Classic
Operational
APAC FileRoom
Operational
APAC WorkFlow
Operational
APAC WorkFlow Manager Classic
Operational
EMEA Calendar
Operational
EMEA Calendar Classic
Operational
EMEA FileRoom
Operational
EMEA WorkFlow
Operational
EMEA WorkFlow Manager Classic
Operational
Platform
Operational
AMERS (onesourcetax.com)
Operational
AMERS (onesourcelogin.com)
Operational
AMERS Administration
Operational
AMERS API Administration
Operational
AMERS UAT (uat.onesourcetax.com)
Operational
AMERS UAT (uat.onesourcelogin.com)
Operational
APAC (apac1.onesourcetax.com)
Operational
APAC (onesourcelogin.com.au)
Operational
APAC Administration
Operational
APAC API Administration
Operational
EMEA (emea1.onesourcetax.com)
Operational
EMEA (onesourcelogin.eu)
Operational
EMEA Administration
Operational
EMEA API Administration
Operational
UAT API Administration
Operational
UAT Administration
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
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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 Enterprise Cloud (OCI MENA)
Operational
ONESOURCE Determination Anywhere (AWS AMER)
Operational
ONESOURCE Determination Anywhere (OCI AMER)
Operational
ONESOURCE Determination Anywhere (OCI MENA)
Operational
Configuration API (AWS AMER)
Operational
Configuration API (AWS EMEA)
Operational
Configuration API (OCI AMER)
Operational
Configuration API (OCI MENA)
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
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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
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
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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
AMERS – ONESOURCE Tax One
Operational
AMERS – ONESOURCE ECF/REINF Messaging
Operational
AMERS - Tax Reform
Operational
AMERS - Tax Automation
Operational
AMERS - TDM: Tax Data Management
Operational
AMERS - OBI: ONESOURCE BRASIL Integration
Operational
AMERS - Interfaces
Operational
EMEA - ONESOURCE Tax One
Operational
EMEA - ONESOURCE ECF/REINF Messaging
Operational
EMEA - Tax Reform
Operational
EMEA - Tax Automation
Operational
EMEA - TDM: Tax Data Management
Operational
EMEA - OBI: ONESOURCE BRASIL Integration
Operational
EMEA - Interface
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 BRAZIL SEPTEMBER 2026 Oct 8, 2026 12:30 - Oct 9, 2026 12:30 CDT
ONESOURCE Oracle Fusion Rate to Regime Content release Content for INDIA region for SEPTEMBER 2026 has been released. It is available in Integration UI for download. Please note that there will be no incremental file for September 2026.
Posted on Oct 08, 2026 - 09:06 CDT
Posted on Oct 08, 2026 - 09:06 CDT
ONESOURCE Oracle Fusion Rate to Regime Content release for AEM OCTOBER 2026 Oct 8, 2026 12:30 - Oct 9, 2026 12:30 CDT
ONESOURCE Oracle Fusion Rate to Regime Content release Content for AEM region for OCTOBER 2026 has been released. It is available in Integration UI for download. Please note that there are no incremental content files for October 2026.
Posted on Oct 08, 2026 - 07:24 CDT
Posted on Oct 08, 2026 - 07:24 CDT
ONESOURCE Fringe Benefits Tax Oct 14, 2026 06:00-10:00 CDT
ONESOURCE Fringe Benefits Tax will be unavailable from Wednesday 14th October 2026 22:00 AEDT to Thursday 15th October 2026 02:00 AEDT
Posted on Oct 12, 2026 - 02:00 CDT
Posted on Oct 12, 2026 - 02:00 CDT
ONESOURCE Corporate Tax NextGen - Release Announcement Oct 15, 2026 17:30-23:30 CDT
ONESOURCE Corporate Tax NextGen will be unavailable during the period specified below:
Thursday October 15th, 23:30 BST to Friday October 16th, 05:30 BST
This downtime supports the latest product release (October 2026) and ongoing platform improvements. We appreciate your patience as we continue to enhance your experience.
Posted on Oct 13, 2026 - 03:42 CDT
Thursday October 15th, 23:30 BST to Friday October 16th, 05:30 BST
This downtime supports the latest product release (October 2026) and ongoing platform improvements. We appreciate your patience as we continue to enhance your experience.
Posted on Oct 13, 2026 - 03:42 CDT
ONESOURCE Trusts - Release Announcement Oct 16, 2026 10:30-16:30 CDT
ONESOURCE Trusts will be unavailable during the period specified below:
Saturday October 17th, 02:30 AEDT to 08:30 AEDT
This downtime supports the latest product release (October 2026) and ongoing platform improvements. We appreciate your patience as we continue to enhance your experience.
Posted on Oct 13, 2026 - 03:45 CDT
Saturday October 17th, 02:30 AEDT to 08:30 AEDT
This downtime supports the latest product release (October 2026) and ongoing platform improvements. We appreciate your patience as we continue to enhance your experience.
Posted on Oct 13, 2026 - 03:45 CDT
ONESOURCE Corporate Tax - Release Announcement Oct 16, 2026 10:30-16:30 CDT
ONESOURCE Corporate Tax will be unavailable during the period specified below:
Saturday October 17th, 02:30 AEDT to 08:30 AEDT
This downtime supports the latest product release (October 2026) and ongoing platform improvements. We appreciate your patience as we continue to enhance your experience.
Posted on Oct 13, 2026 - 03:43 CDT
Saturday October 17th, 02:30 AEDT to 08:30 AEDT
This downtime supports the latest product release (October 2026) and ongoing platform improvements. We appreciate your patience as we continue to enhance your experience.
Posted on Oct 13, 2026 - 03:43 CDT
ONESOURCE GTM4 – Maintenance Oct 18, 2026 00:00-17:00 CDT
Thomson Reuters will be performing scheduled maintenance on Sunday, October 18th, 2026 beginning at 1 AM Eastern time and will conclude by Sunday, October 18th, 2026 at 6 PM Eastern time.
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Sep 23, 2026 - 05:37 CDT
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Sep 23, 2026 - 05:37 CDT
ONESOURCE IDT Determination Enterprise Cloud – Scheduled Maintenance Notification (PROD EMEA environment) Oct 19, 2026 20:00-22:00 CDT
ONESOURCE IDT Determination Enterprise Cloud will undergo scheduled maintenance in the PROD EMEA environment on October 19, 2026, from 8:00 PM to 10:00 PM CDT. A brief UI disruption of approximately 10–15 minutes is expected, affecting UI system functionality and user experience; the Calc engine will remain operational.
Posted on Sep 29, 2026 - 11:02 CDT
Posted on Sep 29, 2026 - 11:02 CDT
ONESOURCE IDT Determination Enterprise Cloud – Scheduled Maintenance Notification (PROD AMER environment) Oct 19, 2026 22:00 - Oct 20, 2026 00:00 CDT
ONESOURCE IDT Determination Enterprise Cloud will undergo scheduled maintenance in the PROD AMER environment from 10:00 PM CDT on October 19 to 12:00 AM CDT on October 20, 2026. A brief UI disruption of approximately 10–15 minutes is expected, affecting UI system functionality and user experience; the Calc engine will remain operational.
Posted on Sep 29, 2026 - 11:03 CDT
Posted on Sep 29, 2026 - 11:03 CDT
ONESOURCE Tax Information Release OTIR Release 26.04 20th October 2026 (AMERS) Oct 20, 2026 19:00 - Oct 21, 2026 06:00 CDT
ONESOURCE Tax Information Reporting Release 26.04 will be installed from 7:00 P.M. (CT) on 20th October 2026 until 06:00 A.M. (CT) on 21st October 2026. System availability and API's may be affected during release time.
Posted on Nov 20, 2025 - 05:35 CST
Posted on Nov 20, 2025 - 05:35 CST
OSPI Platform – UAT Minor release for October 2026 Oct 21, 2026 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, including authentication and administration, might experience degraded performance. In such cases, we recommend trying after some time. We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team. Thank you for your cooperation.
Posted on Sep 29, 2026 - 10:01 CDT
Posted on Sep 29, 2026 - 10:01 CDT
OSPI Platform – APAC Minor release for October 2026 Oct 22, 2026 05:00-11:00 CDT
ONESOURCE Platform will be performing scheduled maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services, including authentication and administration, might experience degraded performance. In such cases, we recommend trying after some time. We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team. Thank you for your cooperation.
Posted on Sep 29, 2026 - 10:04 CDT
Posted on Sep 29, 2026 - 10:04 CDT
OSPI Platform – EMEA Minor release for October 2026 Oct 22, 2026 13:00-19:00 CDT
ONESOURCE Platform will be performing scheduled maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services, including authentication and administration, might experience degraded performance. In such cases, we recommend trying after some time. We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team. Thank you for your cooperation.
Posted on Sep 29, 2026 - 10:08 CDT
Posted on Sep 29, 2026 - 10:08 CDT
ONESOURCE Tax Provision Oct 22, 2026 15:00-17:00 CDT
Dear Customers,
Please be aware that ONESOURCE Tax Provision will be undergoing release and maintenance activities on October 22-23, 2026. We are excited to announce the release of a number of enhancements and fixes to improve your product experience.
The production release will take place on:
October 22, 2026, 3:00 PM to 5:00 PM CT (EMEA)
October 22-23, 2026: 11:00 PM to 2:00 AM CT (AMERS)
Users may experience downtime in ONESOURCE Tax Provision due to these activities.
To learn more about what is being released, please refer to the Release Notes section of Tax Provision Help.
Thank you for your continued support, and we look forward to providing you with the best possible tax provision solution.
Warmest regards,
ONESOURCE Tax Provision Product Management
Posted on Oct 13, 2026 - 03:54 CDT
Please be aware that ONESOURCE Tax Provision will be undergoing release and maintenance activities on October 22-23, 2026. We are excited to announce the release of a number of enhancements and fixes to improve your product experience.
The production release will take place on:
October 22, 2026, 3:00 PM to 5:00 PM CT (EMEA)
October 22-23, 2026: 11:00 PM to 2:00 AM CT (AMERS)
Users may experience downtime in ONESOURCE Tax Provision due to these activities.
To learn more about what is being released, please refer to the Release Notes section of Tax Provision Help.
Thank you for your continued support, and we look forward to providing you with the best possible tax provision solution.
Warmest regards,
ONESOURCE Tax Provision Product Management
Posted on Oct 13, 2026 - 03:54 CDT
ONESOURCE Tax Provision - EMEA Oct 22, 2026 15:00-17:00 CDT
ONESOURCE Tax Provision will be undergoing release and maintenance activities.
Posted on Oct 13, 2026 - 03:54 CDT
Posted on Oct 13, 2026 - 03:54 CDT
ONESOURCE Tax Provision - AMERS Oct 22, 2026 23:00 - Oct 23, 2026 02:00 CDT
ONESOURCE Tax Provision will be undergoing release and maintenance activities
Posted on Oct 13, 2026 - 03:55 CDT
Posted on Oct 13, 2026 - 03:55 CDT
OSPI Platform – AMER Minor release for October 2026 Oct 23, 2026 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, including authentication and administration, might experience degraded performance. In such cases, we recommend trying after some time. We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team. Thank you for your cooperation.
Posted on Sep 29, 2026 - 10:13 CDT
Posted on Sep 29, 2026 - 10:13 CDT
OSPI Platform – UAT User Administration release for October 2026 Oct 23, 2026 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, including authorization and administration, might experience degraded performance.
In such cases, we recommend trying after some time. We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team.
Thank you for your cooperation.
Posted on Sep 29, 2026 - 11:07 CDT
During this maintenance window, certain services, including authorization and administration, might experience degraded performance.
In such cases, we recommend trying after some time. We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team.
Thank you for your cooperation.
Posted on Sep 29, 2026 - 11:07 CDT
ONESOURCE Tax Provision Oct 23, 2026 19:30 - Oct 25, 2026 11:30 CDT
ONESOURCE Tax Provision will undergo server maintenance activities on October 23-25, 2026.
Posted on Oct 13, 2026 - 03:57 CDT
Posted on Oct 13, 2026 - 03:57 CDT
ONESOURCE Determination Enterprise Cloud – Emergency Database Maintenance Notification (UAT EMEA environment) Oct 24, 2026 03:00-09:00 CDT
ONESOURCE Determination Enterprise Cloud will undergo emergency database maintenance in the UAT EMEA environment on October 24, 2026, from 3:00 AM to 9:00 AM CDT. There will be no impact to the SOAP or REST APIs during this maintenance — tax calculation services remain fully available throughout. The only impact is to the application user interface, which will be unavailable for approximately 2 hours, between 3:00 AM and 5:00 AM CDT.
Posted on Oct 13, 2026 - 03:36 CDT
Posted on Oct 13, 2026 - 03:36 CDT
ONESOURCE Determination – Emergency Database Maintenance Notification (UAT AMER environment) Oct 24, 2026 03:00-09:00 CDT
ONESOURCE Determination (Enterprise Cloud and Determination Anywhere) will undergo emergency database maintenance in the UAT AMER environment on October 24, 2026, from 3:00 AM to 9:00 AM CDT. There will be no impact to the SOAP or REST APIs during this maintenance — tax calculation services remain fully available throughout. The only impact is to the application user interface, which will be unavailable for approximately 2 hours, between 3:00 AM and 5:00 AM CDT.
Posted on Oct 13, 2026 - 03:37 CDT
Posted on Oct 13, 2026 - 03:37 CDT
UAT - ONESOURCE Platform Database Maintenance - October 2026. Oct 24, 2026 03:00-09:00 CDT
ONESOURCE Platform will be undergoing scheduled maintenance in UAT on Saturday, Oct 24, 3:00 AM – 9:00 AM CDT
ONESOURCE Platform will be unavailable from Saturday Oct 24, 3:00 AM CDT to 5:00 AM CDT. 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.
Posted on Oct 06, 2026 - 16:11 CDT
ONESOURCE Platform will be unavailable from Saturday Oct 24, 3:00 AM CDT to 5:00 AM CDT. 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.
Posted on Oct 06, 2026 - 16:11 CDT
APAC - ONESOURCE Platform Database Maintenance - October 2026. Oct 24, 2026 11:00-17:00 CDT
ONESOURCE Platform will be undergoing scheduled maintenance in APAC on Saturday, Oct 24, 11:00 AM CDT to 05:00 PM CDT.
ONESOURCE Platform will be unavailable from Saturday Oct 24, 11:00 AM CDT to 01:00 PM CDT. 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.
Posted on Oct 06, 2026 - 16:11 CDT
ONESOURCE Platform will be unavailable from Saturday Oct 24, 11:00 AM CDT to 01:00 PM CDT. 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.
Posted on Oct 06, 2026 - 16:11 CDT
EMEA - ONESOURCE Platform Database Maintenance - October 2026. Oct 24, 2026 18:00 - Oct 25, 2026 00:00 CDT
ONESOURCE Platform will be undergoing scheduled maintenance in EMEA on Saturday Oct 24, 06:00 PM CDT to 11:59 PM CDT.
ONESOURCE Platform will be unavailable from Saturday Oct 24, 06:00 PM CDT to 08:00 PM CDT. 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.
Posted on Oct 06, 2026 - 16:11 CDT
ONESOURCE Platform will be unavailable from Saturday Oct 24, 06:00 PM CDT to 08:00 PM CDT. 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.
Posted on Oct 06, 2026 - 16:11 CDT
ONESOURCE Determination Enterprise Cloud – Emergency Database Maintenance Notification (PROD EMEA environment) Oct 24, 2026 18:00 - Oct 25, 2026 00:00 CDT
ONESOURCE Determination Enterprise Cloud will undergo emergency database maintenance in the PROD EMEA environment on October 24, 2026, from 6:00 PM to 11:59 PM CDT. There will be no impact to the SOAP or REST APIs during this maintenance — tax calculation services remain fully available throughout. The only impact is to the application user interface, which will be unavailable for approximately 2 hours, between 6:00 PM and 8:00 PM CDT.
Posted on Oct 13, 2026 - 03:39 CDT
Posted on Oct 13, 2026 - 03:39 CDT
ONESOURCE Tax Information Reporting System Maintenance 24th October 2026 (AMERS) Oct 24, 2026 22:00 - Oct 25, 2026 07:00 CDT
ONESOURCE Tax Information Reporting and API's will be unavailable from 10:00 P.M. (CT) on 24th October 2026 until 07:00 A.M. (CT) on 25th October 2026 for scheduled maintenance.
Posted on Nov 20, 2025 - 05:36 CST
Posted on Nov 20, 2025 - 05:36 CST
ONESOURCE Determination – Emergency Database Maintenance Notification (PROD AMER environment) Oct 25, 2026 02:00-14:00 CDT
ONESOURCE Determination (Enterprise Cloud and Determination Anywhere) will undergo emergency database maintenance in the PROD AMER environment on October 25, 2026, from 2:00 AM to 2:00 PM CDT. There will be no impact to the SOAP or REST APIs during this maintenance — tax calculation services remain fully available throughout. The only impact is to the application user interface, which will be unavailable for approximately 2.5 hours, between 2:00 AM and 4:30 AM CDT.
Posted on Oct 13, 2026 - 03:40 CDT
Posted on Oct 13, 2026 - 03:40 CDT
AMER - ONESOURCE Platform Database Maintenance - October 2026. Oct 25, 2026 02:00-14:00 CDT
ONESOURCE Platform will be undergoing scheduled maintenance in AMER on Sunday Oct 25, 02:00 AM CDT - 02:00 PM CDT.
ONESOURCE Platform will be unavailable from Sunday, Oct 25, 2:00 AM CDT to 4:30 AM CDT.
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.
Posted on Oct 06, 2026 - 16:11 CDT
ONESOURCE Platform will be unavailable from Sunday, Oct 25, 2:00 AM CDT to 4:30 AM CDT.
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.
Posted on Oct 06, 2026 - 16:11 CDT
OSPI Platform – APAC User Administration release for October 2026 Oct 26, 2026 05:00-11:00 CDT
ONESOURCE Platform will be performing scheduled maintenance on our systems to ensure optimal performance and reliability.
During this maintenance window, certain services, including authorization and administration, might experience degraded performance. In such cases, we recommend trying after some time.
We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team.
Thank you for your cooperation.
Posted on Sep 29, 2026 - 11:08 CDT
During this maintenance window, certain services, including authorization and administration, might experience degraded performance. In such cases, we recommend trying after some time.
We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team.
Thank you for your cooperation.
Posted on Sep 29, 2026 - 11:08 CDT
OSPI Platform – EMEA User Administration release for October 2026 Oct 26, 2026 13:00-19:00 CDT
ONESOURCE Platform will be performing scheduled maintenance on our systems to ensure optimal performance and reliability.
During this maintenance window, certain services, including authorization and administration, might experience degraded performance. In such cases, we recommend trying after some time.
We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team.
Thank you for your cooperation.
Posted on Sep 29, 2026 - 11:09 CDT
During this maintenance window, certain services, including authorization and administration, might experience degraded performance. In such cases, we recommend trying after some time.
We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team.
Thank you for your cooperation.
Posted on Sep 29, 2026 - 11:09 CDT
OSPI Platform – AMER User Administration release for October 2026 Oct 27, 2026 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, including authorization and administration, might experience degraded performance. In such cases, we recommend trying after some time.
We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team.
Thank you for your cooperation.
Posted on Sep 29, 2026 - 11:10 CDT
During this maintenance window, certain services, including authorization and administration, might experience degraded performance. In such cases, we recommend trying after some time.
We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team.
Thank you for your cooperation.
Posted on Sep 29, 2026 - 11:10 CDT
ONESOURCE API Administration Backend Services and UI Oct 2026 release in UAT Oct 28, 2026 22:00 - Oct 29, 2026 03:00 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 Oct 06, 2026 - 05:35 CDT
Posted on Oct 06, 2026 - 05:35 CDT
OSPI Platform – UAT Major release for October 2026 Oct 29, 2026 00:00-09:00 CDT
ONESOURCE Platform will be performing scheduled maintenance on our systems to ensure optimal performance and reliability.
During this maintenance window, certain services, including authentication and administration, might experience degraded performance. 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 Oct 13, 2026 - 09:45 CDT
During this maintenance window, certain services, including authentication and administration, might experience degraded performance. 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 Oct 13, 2026 - 09:45 CDT
ONESOURCE API Administration Backend Services Oct 2026 release in all Production regions Oct 29, 2026 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 Oct 06, 2026 - 05:40 CDT
To explore the capabilities of API Administration, please refer to the Guide.
Posted on Oct 06, 2026 - 05:40 CDT
ONESOURCE API Administration UI Oct 2026 release – APAC Oct 29, 2026 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 Oct 06, 2026 - 05:42 CDT
Posted on Oct 06, 2026 - 05:42 CDT
ONESOURCE API Administration UI Oct 2026 release – EMEA Oct 29, 2026 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 Oct 06, 2026 - 05:45 CDT
Posted on Oct 06, 2026 - 05:45 CDT
ONESOURCE API Administration UI Oct 2026 release – AMER Oct 30, 2026 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 Oct 06, 2026 - 05:48 CDT
Posted on Oct 06, 2026 - 05:48 CDT
OSPI Platform – APAC Major release for October 2026 Oct 30, 2026 05:00-14:00 CDT
ONESOURCE Platform will be performing scheduled maintenance on our systems to ensure optimal performance and reliability.
During this maintenance window, certain services, including authentication and administration, might experience degraded performance. 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 Oct 13, 2026 - 09:46 CDT
During this maintenance window, certain services, including authentication and administration, might experience degraded performance. 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 Oct 13, 2026 - 09:46 CDT
OSPI Platform – EMEA Major release for October 2026 Oct 31, 2026 13:00-22:00 CDT
ONESOURCE Platform will be performing scheduled maintenance on our systems to ensure optimal performance and reliability.
During this maintenance window, certain services, including authentication and administration, might experience degraded performance. 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 Oct 13, 2026 - 09:47 CDT
During this maintenance window, certain services, including authentication and administration, might experience degraded performance. 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 Oct 13, 2026 - 09:47 CDT
OSPI Platform – AMER Major release for October 2026 Nov 1, 2026 00:00-08:00 CST
ONESOURCE Platform will be performing scheduled maintenance on our systems to ensure optimal performance and reliability.
During this maintenance window, certain services, including authentication and administration, might experience degraded performance. 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 Oct 13, 2026 - 09:47 CDT
During this maintenance window, certain services, including authentication and administration, might experience degraded performance. 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 Oct 13, 2026 - 09:47 CDT
ONESOURCE Events Backend Services October 2026 release in APAC Nov 3, 2026 07:00-12:00 CST
ONESOURCE Events 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 ONESOURCE Events, please refer to the Guide.
Posted on Oct 06, 2026 - 05:11 CDT
Posted on Oct 06, 2026 - 05:11 CDT
ONESOURCE Events Backend Services October 2026 release in EMEA Nov 3, 2026 16:00-21:00 CST
ONESOURCE Events 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 ONESOURCE Events, please refer to the Guide.
Posted on Oct 06, 2026 - 05:15 CDT
Posted on Oct 06, 2026 - 05:15 CDT
ONESOURCE Events Backend Services October 2026 release in AMER Nov 4, 2026 00:00-05:00 CST
This maintenance will start on November 4, 2026 at 12:00 CDT, midnight.
ONESOURCE Events 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 ONESOURCE Events, please refer to the Guide.
Posted on Oct 06, 2026 - 05:19 CDT
ONESOURCE Events 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 ONESOURCE Events, please refer to the Guide.
Posted on Oct 06, 2026 - 05:19 CDT
ONESOURCE GTM4 – Maintenance Nov 8, 2026 00:00-17:00 CST
Thomson Reuters will be performing scheduled maintenance on Sunday, November 8th, 2026 beginning at 1 AM Eastern time and will conclude by Sunday, November 8th, 2026 at 6 PM Eastern time.
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Sep 23, 2026 - 05:41 CDT
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Sep 23, 2026 - 05:41 CDT
ONESOURCE Tax Information Reporting System Maintenance 21st November 2026 (AMERS) Nov 21, 2026 22:00 - Nov 22, 2026 07:00 CST
ONESOURCE Tax Information Reporting and API's will be unavailable from 10:00 P.M. (CT) on 21st November 2026 until 07:00 A.M. (CT) on 22nd November 2026 for scheduled maintenance.
Posted on Nov 20, 2025 - 05:37 CST
Posted on Nov 20, 2025 - 05:37 CST
ONESOURCE GTM4 – Maintenance Nov 22, 2026 00:00-17:00 CST
Thomson Reuters will be performing scheduled maintenance on Sunday, November 22nd, 2026 beginning at 1 AM Eastern time and will conclude by Sunday, November 22nd, 2026 at 6 PM Eastern time.
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Sep 23, 2026 - 05:41 CDT
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Sep 23, 2026 - 05:41 CDT
ONESOURCE Tax Information Release OTIR Release 26.05 1st December 2026 (AMERS) Dec 1, 2026 19:00 - Dec 2, 2026 06:00 CST
ONESOURCE Tax Information Reporting Release 26.05 will be installed from 7:00 P.M. (CT) on 1st December 2026 until 06:00 A.M. (CT) on 2nd December 2026. System availability and API's may be affected during release time.
Posted on Nov 20, 2025 - 05:38 CST
Posted on Nov 20, 2025 - 05:38 CST
ONESOURCE GTM4 – Maintenance Dec 6, 2026 00:00-17:00 CST
Thomson Reuters will be performing scheduled maintenance on Sunday, December 6th, 2026 beginning at 1 AM Eastern time and will conclude by Sunday, December 6th, 2026 at 6 PM Eastern time.
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Sep 23, 2026 - 05:43 CDT
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Sep 23, 2026 - 05:43 CDT
ONESOURCE GTM4 – Maintenance Dec 20, 2026 00:00-17:00 CST
Thomson Reuters will be performing scheduled maintenance on Sunday, December 20th, 2026 beginning at 1 AM Eastern time and will conclude by Sunday, December 20th, 2026 at 6 PM Eastern time.
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Sep 23, 2026 - 05:44 CDT
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Sep 23, 2026 - 05:44 CDT
ONESOURCE Tax Information Release OTIR Release 26.06 22nd December 2026 (AMERS) Dec 22, 2026 19:00 - Dec 23, 2026 06:00 CST
ONESOURCE Tax Information Reporting Release 26.06 will be installed from 7:00 P.M. (CT) on 22nd December 2026 until 06:00 A.M. (CT) on 23rd December 2026. System availability and API's may be affected during release time.
Posted on Nov 20, 2025 - 05:38 CST
Posted on Nov 20, 2025 - 05:38 CST