All Systems Operational

WorkFlow Tools Operational
AMERS Calendar Operational
AMERS Calendar Classic Operational
AMERS FileRoom Operational
AMERS WorkFlow Operational
AMERS WorkFlow Manager Classic Operational
APAC Calendar Operational
APAC Calendar Classic Operational
APAC FileRoom Operational
APAC WorkFlow Operational
APAC WorkFlow Manager Classic Operational
EMEA Calendar Operational
EMEA Calendar Classic Operational
EMEA FileRoom Operational
EMEA WorkFlow Operational
EMEA WorkFlow Manager Classic Operational
Platform Operational
AMERS (onesourcetax.com) Operational
AMERS (onesourcelogin.com) Operational
AMERS Administration Operational
AMERS API Administration Operational
AMERS UAT (uat.onesourcetax.com) Operational
AMERS UAT (uat.onesourcelogin.com) Operational
APAC (apac1.onesourcetax.com) Operational
APAC (onesourcelogin.com.au) Operational
APAC Administration Operational
APAC API Administration Operational
EMEA (emea1.onesourcetax.com) Operational
EMEA (onesourcelogin.eu) Operational
EMEA Administration Operational
EMEA API Administration Operational
UAT API Administration Operational
Data Tools 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 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 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
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
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

AMER - ONESOURCE Platform Emergency Maintenance May 16, 2026 06:00-09:00 CDT

ONESOURCE Platform will be performing a maintenance in AMER on our systems to ensure optimal performance and reliability.

ONESOURCE Platform will be available during this maintenance.

We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Posted on Apr 22, 2026 - 13:40 CDT

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

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

ONESOURCE Tax Provision EMEA May 18, 2026 15:00-17:00 CDT

ONESOURCE Tax Provision will be undergoing release and maintenance activities on May 18, 2026.
Posted on May 11, 2026 - 09:23 CDT

ONESOURCE Tax Provision May 18, 2026 15:00-15:01 CDT

ONESOURCE Tax Provision will be undergoing release and maintenance activities on May 18-19, 2026.
Posted on May 11, 2026 - 09:21 CDT

ONESOURCE Tax Provision AMERS May 18, 2026 23:00 - May 19, 2026 02:00 CDT

ONESOURCE Tax Provision will be undergoing release and maintenance activities on May 18-19, 2026.
Posted on May 11, 2026 - 09:24 CDT

Reports and Analytics release Version 2026.04 in AMER PROD region May 19, 2026 06:00-13:00 CDT

Update - The deployment of Reports and Analytics release version 2026.04 in the AMER PROD environment is scheduled for 06:00 AM to 10:00 AM CDT. Rest assured that your access to the user interface and tax calculation services will not be affected during this maintenance period.
May 13, 2026 - 08:25 CDT
Scheduled - The deployment of Reports and Analytics release version 2026.04 in the AMER PROD environment is scheduled for 04:00 AM to 11:00 AM CDT. Rest assured that your access to the user interface and tax calculation services will not be affected during this maintenance period.
Apr 14, 2026 - 06:10 CDT

OSPI Platform – UAT User Administration Minor release for May 2026 May 22, 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 May 07, 2026 - 16:01 CDT

ONESOURCE Tax Provision May 22, 2026 15:00-15:01 CDT

ONESOURCE Tax Provision will be undergoing release and maintenance activities on May 22-23, 2026.
Posted on May 11, 2026 - 09:28 CDT

ONESOURCE Tax Provision EMEA May 22, 2026 15:00-17:00 CDT

ONESOURCE Tax Provision will be undergoing release and maintenance activities on May 22, 2026.
Posted on May 11, 2026 - 09:30 CDT

ONESOURCE Tax Provision AMERS May 22, 2026 23:00 - May 23, 2026 02:00 CDT

ONESOURCE Tax Provision will be undergoing release and maintenance activities on May 22-23, 2026.
Posted on May 11, 2026 - 09:30 CDT

ONESOURCE Platform Backend Service Maintenance in APAC May 23, 2026 05:00-08:00 CDT

ONESOURCE Platform will be performing maintenance on one of our backend services in APAC to ensure optimal performance and reliability.
ONESOURCE Platform will be available during this maintenance.
We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Posted on May 07, 2026 - 16:26 CDT

ONESOURCE Platform Backend Service Maintenance in EMEA May 23, 2026 09:00-12:00 CDT

ONESOURCE Platform will be performing maintenance on one of our backend services in EMEA to ensure optimal performance and reliability.
ONESOURCE Platform will be available during this maintenance.
We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Posted on May 07, 2026 - 16:26 CDT

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

ONESOURCE Tax Information Reporting and API's will be unavailable from 10:00 P.M. (CT) on 23rd May  2026 until 07:00 A.M. (CT) on 24th May 2026 for scheduled maintenance.
Posted on Nov 20, 2025 - 05:25 CST

OSPI Platform – APAC User Administration Minor release for May 2026 May 25, 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 May 07, 2026 - 16:01 CDT

OSPI Platform – EMEA User Administration Minor release for May 2026 May 25, 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 May 07, 2026 - 16:01 CDT

OSPI Platform – AMER User Administration Minor release for May 2026 May 26, 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 May 07, 2026 - 16:01 CDT

OSPI Platform – UAT Major release for May 2026 May 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 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 May 07, 2026 - 16:11 CDT

ONESOURCE Determination Enterprise Cloud– Version 2026.03 Release Information (PROD EMEA environment) May 27, 2026 04:00-08:00 CDT

ONESOURCE Determination Enterprise Cloud– Version 2026.03 is being deployed in the PROD EMEA environment on May 27, 2026. Your access to the tax calculation services and the application will not be interrupted.
Posted on May 01, 2026 - 06:47 CDT

ONESOURCE Determination Enterprise Cloud– Version 2026.03 Release Information (PROD MENA environment) May 27, 2026 08:00-12:00 CDT

ONESOURCE Determination Enterprise Cloud– Version 2026.03 is being deployed in the PROD MENA environment on May 27, 2026. Your access to the tax calculation services and the application will not be interrupted.
Posted on May 01, 2026 - 06:50 CDT

ONESOURCE Determination Anywhere – Version 2026.03 Release Information (PROD MENA environment) May 27, 2026 10:00-16:00 CDT

ONESOURCE Determination Anywhere – Version 2026.03 is being deployed in the PROD environment on May 27, 2026. Your access to the tax calculation services and the application will not be interrupted.
Posted on May 01, 2026 - 06:56 CDT

OSPI Platform – APAC Major release for May 2026 May 28, 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 May 07, 2026 - 16:11 CDT

OSPI Platform – EMEA Major release for May 2026 May 28, 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 May 07, 2026 - 16:11 CDT

OSPI Platform – AMER Major release for May 2026 May 29, 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 May 07, 2026 - 16:11 CDT

ONESOURCE Platform Backend Service Maintenance in AMER May 30, 2026 00:00-03:00 CDT

ONESOURCE Platform will be performing maintenance on one of our backend services in AMER to ensure optimal performance and reliability.
ONESOURCE Platform will be available during this maintenance.
We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Posted on May 07, 2026 - 16:26 CDT

ONESOURCE Determination Enterprise Cloud– Version 2026.03 Release Information (PROD AMER environment) Jun 4, 2026 04:00-10:00 CDT

ONESOURCE Determination Enterprise Cloud– Version 2026.03 is being deployed in the PROD AMER environment on June 04, 2026. Your access to the tax calculation services and the application will not be interrupted.
Posted on May 01, 2026 - 06:53 CDT

ONESOURCE Determination Anywhere – Version 2026.03 Release Information (PROD environment) Jun 4, 2026 06:00-12:00 CDT

ONESOURCE Determination Anywhere – Version 2026.03 is being deployed in the PROD environment on June 04, 2026. Your access to the tax calculation services and the application will not be interrupted.
Posted on May 01, 2026 - 06:59 CDT

Reports and Analytics release Version 2026.05 in EMEA UAT region Jun 4, 2026 08:00-15:00 CDT

The deployment of Reports and Analytics release version 2026.05 in the EMEA UAT environment is scheduled for 08:00 AM to 3:00 PM CDT. Rest assured that your access to the user interface and tax calculation services will not be affected during this maintenance period.
Posted on Apr 14, 2026 - 06:18 CDT

Reports and Analytics release Version 2026.05 in AMER UAT region Jun 5, 2026 04:00-11:00 CDT

The deployment of Reports and Analytics release version 2026.05 in the AMER UAT environment is scheduled for 04:00 AM to 11:00 AM CDT. Rest assured that your access to the user interface and tax calculation services will not be affected during this maintenance period.
Posted on Apr 14, 2026 - 06:16 CDT

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

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

Reports and Analytics release Version 2026.05 in EMEA PROD region Jun 10, 2026 08:00-15:00 CDT

The deployment of Reports and Analytics release version 2026.05 in the EMEA PROD environment is scheduled for 08:00 AM to 3:00 PM CDT. Rest assured that your access to the user interface and tax calculation services will not be affected during this maintenance period.
Posted on Apr 14, 2026 - 06:22 CDT

Reports and Analytics release Version 2026.05 in AMER PROD region Jun 11, 2026 04:00-11:00 CDT

The deployment of Reports and Analytics release version 2026.05 in the AMER PROD environment is scheduled for 04:00 AM to 11:00 AM CDT. Rest assured that your access to the user interface and tax calculation services will not be affected during this maintenance period.
Posted on Apr 14, 2026 - 06:20 CDT

ONESOURCE Tax Information Release OTIR Release 26.02 16th June 2026 (AMERS) Jun 16, 2026 19:00 - Jun 17, 2026 06:00 CDT

ONESOURCE Tax Information Reporting Release 26.02 will be installed from 7:00 P.M. (CT) on 16th June 2026 until 06:00 A.M. (CT) on 17th June 2026. System availability and API's may be affected during release time.
Posted on Nov 20, 2025 - 05:26 CST

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

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

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

ONESOURCE Tax Information Reporting and API's will be unavailable from 10:00 P.M. (CT) on 27th June 2026 until 07:00 A.M. (CT) on 28th June  2026 for scheduled maintenance.
Posted on Nov 20, 2025 - 05:46 CST

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

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

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

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

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

ONESOURCE Tax Information Reporting and API's will be unavailable from 10:00 P.M. (CT) on 25th July 2026 until 07:00 A.M. (CT) on 26th July 2026 for scheduled maintenance.
Posted on Nov 20, 2025 - 05:32 CST

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

ONESOURCE Tax Information Reporting Release 26.07 will be installed from 7:00 P.M. (CT) on 16th February 2027 until 06:00 A.M. (CT) on 17th February 2027. System availability and API's may be affected during release time.
Posted on Nov 20, 2025 - 05:48 CST
May 15, 2026
Manutenção Programada UAT/PROD – Inatividade ONESOURCE Tax One
Completed - The scheduled maintenance has been completed.
May 15, 22:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 15, 12:00 CDT
Scheduled - Informamos que, como parte do nosso processo de melhoria contínua, será realizada uma manutenção programada nas bases UAT e PROD do ONESOURCE Tax One neste final de semana.

Durante a janela de manutenção, o ambiente poderá ficar indisponível.
May 14, 13:01 CDT
Reports and Analytics release Version 2026.04 in EMEA PROD region
Completed - The scheduled maintenance has been completed.
May 15, 15:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 15, 08:00 CDT
Scheduled - The deployment of Reports and Analytics release version 2026.04 in the EMEA PROD environment is scheduled for 08:00 AM to 3:00 PM CDT. Rest assured that your access to the user interface and tax calculation services will not be affected during this maintenance period.
May 13, 08:28 CDT
ONESOURCE IDT Determination Enterprise Cloud 2026.03 UAT Environment – Action Required: Clear Browser Cache Upon Initial Login
Completed - The scheduled maintenance has been completed.
May 15, 12:31 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 15, 12:30 CDT
Scheduled - Action may be required after login to UAT (Release 2026.03): clear browser cache or use incognito mode if a blank page appears.
May 15, 11:59 CDT
ONESOURCE Oracle Fusion Rate to Regime Content release for INDIA MAY 2026
Completed - The scheduled maintenance has been completed.
May 15, 12:31 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 14, 12:30 CDT
Scheduled - ONESOURCE Oracle Fusion Rate to Regime Content release Content for INDIA region for MAY 2026 has been released. It is available in Integration UI for download.
May 14, 10:03 CDT
ONESOURCE Oracle Fusion Rate to Regime Content release for LATAM MAY 2026
Completed - The scheduled maintenance has been completed.
May 15, 12:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 14, 12:30 CDT
Scheduled - ONESOURCE Oracle Fusion Rate to Regime Content release Content for LATAM region for MAY 2026 has been released. It is available in Integration UI for download.
May 14, 10:05 CDT
ONESOURCE API Administration UI May 2026 release – AMER
Completed - The scheduled maintenance has been completed.
May 15, 05:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 15, 00:00 CDT
Scheduled - ONESOURCE API Administration will undergo scheduled maintenance to enhance system performance, reliability, and UI features. Some services may be temporarily affected; please try again later if you encounter issues. We apologize for any inconvenience and appreciate your patience. For urgent assistance during this period, contact our support team. Thank you for your cooperation. For more on API Administration, see the Guide.
May 6, 08:04 CDT
Delay in Data for reports and analytics service in AMER UAT
Resolved - This incident has been resolved.
May 15, 01:13 CDT
Update - Reports and Analytics Service in AMER UAT is currently experiencing delay of 1 day. We are working on the data catch up. Will notify once complete.
May 14, 21:26 CDT
Update - Reports and Analytics Service in AMER UAT is currently experiencing delay of around 18 hours. We are working on the data catch up. Will notify once complete.
May 14, 09:21 CDT
Update - Reports and Analytics Service in AMER UAT is currently experiencing delay of around 13 hours. We are working on the data catch up. Will notify once complete.
May 14, 02:11 CDT
Investigating - Reports and Analytics Service in AMER UAT is currently experiencing delay of around 6 hours. We are working on the data catch up, will notify once complete.
May 13, 20:06 CDT
May 14, 2026
ONESOURCE API Administration UI May 2026 release – EMEA
Completed - The scheduled maintenance has been completed.
May 14, 21:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 14, 16:00 CDT
Scheduled - ONESOURCE API Administration will undergo scheduled maintenance to enhance system performance, reliability, and UI features. Some services may be temporarily affected; please try again later if you encounter issues. We apologize for any inconvenience and appreciate your patience. For urgent assistance during this period, contact our support team. Thank you for your cooperation. For more on API Administration, see the Guide.
May 6, 08:03 CDT
ONESOURCE Determination Anywhere – Version 2026.03 Release Information (UAT environment)
Completed - The scheduled maintenance has been completed.
May 14, 12:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 14, 06:01 CDT
Scheduled - ONESOURCE Determination Anywhere – Version 2026.03 is being deployed in the UAT environment on May 14, 2026. Your access to the tax calculation services and the application will not be interrupted.
Apr 29, 14:52 CDT
ONESOURCE API Administration UI May 2026 release – APAC
Completed - The scheduled maintenance has been completed.
May 14, 12:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 14, 07:00 CDT
Scheduled - ONESOURCE API Administration will undergo scheduled maintenance to enhance system performance, reliability, and UI features. Some services may be temporarily affected; please try again later if you encounter issues. We apologize for any inconvenience and appreciate your patience. For urgent assistance during this period, contact our support team. Thank you for your cooperation. For more on API Administration, see the Guide.
May 6, 08:02 CDT
ONESOURCE Determination Enterprise Cloud– Version 2026.03 Release Information (UAT AMER environment)
Completed - The scheduled maintenance has been completed.
May 14, 10:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 14, 04:00 CDT
Scheduled - ONESOURCE Determination Enterprise Cloud– Version 2026.03 is being deployed in the UAT AMER environment on May 14, 2026. Your access to the tax calculation services and the application will not be interrupted.
Apr 29, 14:52 CDT
ONESOURCE E-Invoicing Release Notes (OEI2026.R2.0.0) - Thursday 14th May 2026
Completed - The scheduled maintenance has been completed.
May 14, 08:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 14, 06:01 CDT
Scheduled - ONESOURCE E-Invoicing Release Notes (OEI2026.R2.0.0)- Thursday 14th May 2026
May 14, 03:17 CDT
OSPI Platform – AMER Emergency Minor release for May 2026
Completed - The scheduled maintenance has been completed.
May 14, 06:02 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 14, 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, 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.
May 7, 15:52 CDT
ONESOURCE API Administration Backend Services May 2026 release in all Production regions
Completed - The scheduled maintenance has been completed.
May 14, 06:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 14, 01:00 CDT
Scheduled - ONESOURCE API Administration will be performing scheduled maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services may experience some issues. In such cases, we recommend trying after some time. We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team. Thank you for your cooperation.

To explore the capabilities of API Administration, please refer to the Guide.
May 6, 08:00 CDT
ONESOURCE API Administration Backend Services and UI May  2026 release in UAT.
Completed - The scheduled maintenance has been completed.
May 14, 03:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 13, 22:00 CDT
Scheduled - ONESOURCE API Administration will undergo scheduled maintenance to enhance system performance, reliability, and UI features. Some services may be temporarily affected; please try again later if you encounter issues. We apologize for any inconvenience and appreciate your patience. For urgent assistance during this period, contact our support team. Thank you for your cooperation. For more on API Administration, see the Guide.
May 6, 07:58 CDT
May 13, 2026
OSPI Platform – EMEA Emergency Minor release for May 2026
Completed - The scheduled maintenance has been completed.
May 13, 19:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 13, 13:00 CDT
Scheduled - ONESOURCE Platform will be performing emergency maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services, 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.
May 7, 15:52 CDT
OSPI Platform – APAC Emergency Minor release for May 2026
Completed - The scheduled maintenance has been completed.
May 13, 11:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 13, 05:00 CDT
Scheduled - ONESOURCE Platform will be performing emergency maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services, 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.
May 7, 15:52 CDT
May 12, 2026
ONESOURCE Oracle Fusion Rate to Regime Content release for EMEA MAY 2026
Completed - The scheduled maintenance has been completed.
May 12, 16:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 11, 16:30 CDT
Scheduled - ONESOURCE Oracle Fusion Rate to Regime Content release Content for EMEA region for MAY 2026 has been released. It is available in Integration UI for download.
May 11, 16:28 CDT
ONESOURCE Determination Anywhere – Version 2026.03 Release Information (UAT MENA environment)
Completed - The scheduled maintenance has been completed.
May 12, 16:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 12, 10:00 CDT
Scheduled - ONESOURCE Determination Anywhere – Version 2026.03 is being deployed in the UAT MENA environment on May 12, 2026. Your access to the tax calculation services and the application will not be interrupted.
Apr 29, 14:52 CDT
Reports and Analytics release Version 2026.04 in AMER UAT region
Completed - The scheduled maintenance has been completed.
May 12, 13:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 12, 06:00 CDT
Update - The deployment of Reports and Analytics release version 2026.04 in the AMER UAT environment is scheduled for 06:00 AM to 01:00 PM CDT. Rest assured that your access to the user interface and tax calculation services will not be affected during this maintenance period.
May 7, 10:13 CDT
Scheduled - The deployment of Reports and Analytics release version 2026.04 in the AMER UAT environment is scheduled for 06:00 AM to 01:00 PM CDT. Rest assured that your access to the user interface and tax calculation services will not be affected during this maintenance period.
May 6, 23:35 CDT
ONESOURCE Determination Enterprise Cloud– Version 2026.03 Release Information (UAT MENA environment)
Completed - The scheduled maintenance has been completed.
May 12, 12:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 12, 08:00 CDT
Scheduled - ONESOURCE Determination Enterprise Cloud– Version 2026.03 is being deployed in the UAT MENA environment on May 12, 2026, at 8:00 AM CST. Your access to the tax calculation services and the application will not be interrupted.
Apr 29, 14:52 CDT
ONESOURCE Determination Enterprise Cloud– Version 2026.03 Release Information (UAT EMEA environment)
Completed - The scheduled maintenance has been completed.
May 12, 08:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 12, 04:00 CDT
Scheduled - ONESOURCE Determination Enterprise Cloud– Version 2026.03 is being deployed in the UAT EMEA environment on May 12, 2026, at 4:00 AM CST. Your access to the tax calculation services and the application will not be interrupted.
Apr 29, 14:52 CDT
OSPI Platform – UAT Emergency Minor release for May 2026
Completed - The scheduled maintenance has been completed.
May 12, 06:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 12, 00:01 CDT
Scheduled - ONESOURCE Platform will be performing emergency 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.
May 7, 15:52 CDT
Delay in Data for reports and analytics service in AMER PROD
Resolved - This incident has been resolved.
May 12, 02:55 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.
May 11, 20:44 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.
May 11, 14:48 CDT
GoSystem Tax RS Maintenance
Completed - The scheduled maintenance has been completed.
May 12, 00:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 11, 20:00 CDT
Scheduled - GoSystem Tax RS will be undergoing necessary maintenance on May 11, 2026, from 8:00 PM CT to 11:59 PM CT. During this period, you may notice brief interruptions in service as the maintenance work is carried out.
May 7, 14:56 CDT
May 11, 2026
Reports and Analytics release Version 2026.04 in EMEA UAT region
Completed - The scheduled maintenance has been completed.
May 11, 15:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 11, 08:00 CDT
Scheduled - The deployment of Reports and Analytics release version 2026.04 in the EMEA UAT environment is scheduled for 08:00 AM to 3:00 PM CDT. Rest assured that your access to the user interface and tax calculation services will not be affected during this maintenance period.
May 6, 23:32 CDT
Intermitência na Geração do SPED Fiscal – Ambiente PROD01
Resolved - This incident has been resolved.
May 11, 11:48 CDT
Investigating - Informamos que o ambiente de produção do ONESOURCE Tax One (PROD01) encontra-se com instabilidade momentânea, impactando na performance da geração do SPED Fiscal.

A previsão de retorno até 14hs.

Para identificação do ambiente acesse
May 7, 10:16 CDT
Certificate Manager Enterprise Cloud-Soap & Rest Service unavailable in EMEA PROD
Resolved - This incident has been resolved.
May 11, 08:45 CDT
Monitoring - Dear Customers, Between 06:58 AM CT and 08:45 AM CT, customers in EMEA PROD experienced an outage of the Certificate Manager Enterprise Cloud SOAP and REST services. The issue has been fully mitigated, and all services have been successfully restored.

We apologize for the inconvenience caused and appreciate your understanding and patience.
Further details will be shared in the formal RCA. If you have any questions, please contact Customer Support
May 11, 06:58 CDT
High latency and Intermittent failures for Tax calculations in AMER PROD
Resolved - Dear Customers,

We had experienced intermittent issues with tax calculation service (REST API) and Authentication token generations in the ONESOURCE Indirect Tax Determination - AMER Production environment between 07:51 AM and 8:03 AM EST. The issue is mitigated.

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

Further details will be provided in the formal RCA. If you have any questions, please contact Customer Support.
May 11, 08:15 CDT
Identified - We are currently experiencing intermittent issues with the Tax calculation Service feature with our Onesource Indirect Tax Determination Enterprise service.
May 11, 07:44 CDT
AMER - ONESOURCE Platform Security Maintenance Application server patching for April 2026.
Completed - The scheduled maintenance has been completed.
May 11, 08:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 11, 00:00 CDT
Scheduled - ONESOURCE Platform will be undergoing maintenance in AMER on Monday, May 11, 2026, 12 AM CDT - 8 AM CDT.
Users may experience degraded performance from 00:00 AM CDT to 00:30 AM CDT and 04:00 AM CDT to 04:30 AM CDT 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.
Apr 22, 14:10 CDT
Intermittent failures for Tax calculations in AMER PROD
Resolved - This incident has been resolved.
May 11, 05:16 CDT
Monitoring - Dear Customers,

We had experienced intermittent issues with tax calculation service (REST API) and Authentication token generations in the ONESOURCE Indirect Tax Determination - AMER Production environment between 01:54 AM and 2:08 AM EST . The issue is mitigated.

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

Further details will be provided in the formal RCA. If you have any questions, please contact Customer Support.
May 11, 02:20 CDT
May 10, 2026
ONESORCE GTM4 Login issue
Resolved - This incident has been resolved.
May 10, 21:49 CDT
Monitoring - The ONESOURCE Global Trade login issue is resolved, and the team will continue to monitor. The disruption was due to an AWS US-East (N. Virginia) outage. More updates will be provided as available.
May 7, 22:12 CDT
Investigating - We are currently experiencing an issue that is affecting some customers' ability to log in to the application. Our team is actively working to resolve this matter as quickly as possible.  We apologize for any inconvenience and appreciate your understanding and patience.  

Further updates will be provided here as soon as we have more information. If you have any questions, please contact Customer Support
May 7, 20:25 CDT
AMER - ONESOURCE Platform Security Maintenance Database server patching for April 2026.
Completed - The scheduled maintenance has been completed.
May 10, 07:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 10, 00:00 CDT
Scheduled - ONESOURCE Platform will be undergoing maintenance in AMER on Sunday May 10, 12:00 AM CDT - 07:30 AM CDT.
ONESOURCE Platform will be unavailable from Sunday May 10, 4:00 AM CDT to 4:20 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.
Apr 22, 14:17 CDT
EMEA - ONESOURCE Platform Security Maintenance Database server patching for April 2026.
Completed - The scheduled maintenance has been completed.
May 10, 02:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 9, 18:00 CDT
Scheduled - ONESOURCE Platform will be undergoing maintenance in EMEA on Saturday May 09, 06:00 PM CDT – Sunday May 10, 02:00 AM CDT.
ONESOURCE Platform will be unavailable from Saturday May 09, 10:00 PM CDT to 10:15 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.
Apr 22, 14:17 CDT
May 9, 2026
ONESOURCE Corporate Tax - Legacy [EMEA]
Completed - The scheduled maintenance has been completed.
May 9, 19:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 9, 09:00 CDT
Scheduled - Planned infrastructure maintenance notice
We will be performing an infrastructure maintenance during this window. The application will be unavailable while this work is carried out. There are no functional changes as part of this activity.

Saturday May 9, 15:00 BST to Sunday May 10, 01:00 BST
Apr 30, 00:16 CDT
ONESOURCE Statutory Reporting - Legacy [EMEA]
Completed - The scheduled maintenance has been completed.
May 9, 18:01 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 9, 08:00 CDT
Scheduled - ONESOURCE Statutory Reporting - Legacy [EMEA] will be undergoing scheduled maintenance during May 09, 2026 14:00 BST to May 10, 2026 00:00 BST.
Apr 29, 08:42 CDT
EMEA - ONESOURCE Platform Emergency Maintenance
Completed - The scheduled maintenance has been completed.
May 9, 17:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 9, 14:00 CDT
Scheduled - ONESOURCE Platform will be performing an emergency maintenance in EMEA on our systems to ensure optimal performance and reliability.

ONESOURCE Platform will be available during this maintenance.

We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Apr 22, 13:40 CDT
ONESOURCE IDT Determination Enterprise Cloud – Scheduled maintenance in the AWS AMER PROD environment (May 09)
Completed - The scheduled maintenance has been completed.
May 9, 16:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 9, 12:00 CDT
Scheduled - We are performing a scheduled maintenance in ONESOURCE Determination Enterprise Cloud AWS AMER PROD environment on May 09. This activity may cause brief interruptions to tax calculations. Failed transactions must be reprocessed by customers after maintenance.
May 4, 16:13 CDT
APAC - ONESOURCE Platform Security Maintenance Database server patching for April 2026.
Completed - The scheduled maintenance has been completed.
May 9, 14:01 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 9, 06:00 CDT
Scheduled - ONESOURCE Platform will be undergoing maintenance in APAC on Saturday, May 09, 06:00 AM CDT to 02:00 PM CDT.
ONESOURCE Platform will be unavailable from Saturday May 09, 10:00 AM CDT to 10:15 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.
Apr 22, 14:17 CDT
UAT - ONESOURCE Platform Security Maintenance Database server patching for April 2026.
Completed - The scheduled maintenance has been completed.
May 9, 07:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 9, 00:30 CDT
Scheduled - Message: ONESOURCE Platform will be undergoing maintenance in UAT on Saturday May 09, 12:30 AM CDT - 07:30 AM CDT.
ONESOURCE Platform will be unavailable from Saturday May 09, 4:00 AM CDT to 4:15 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.
Apr 22, 14:17 CDT
EMEA - ONESOURCE Platform Security Maintenance Application server patching April 2026.
Completed - The scheduled maintenance has been completed.
May 9, 02:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 8, 18:00 CDT
Scheduled - ONESOURCE Platform will be undergoing maintenance in EMEA on Friday, May 8, 2026, 6 PM CDT to May 9, 2026, 2 AM CDT.
Users may experience degraded performance from 6:00 PM CDT to 6:30 PM CDT and 10:00 PM CDT to 10:30 PM CDT 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.
Apr 22, 14:10 CDT
Delay in Data for reports and analytics service in AMER PROD
Resolved - This incident has been resolved.
May 9, 00:29 CDT
Update - We are continuing to investigate this issue.
May 9, 00:29 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.
May 8, 20:15 CDT
May 8, 2026
On-Going AWS Outage || Expected application degradation
Resolved - This incident has been resolved.
May 8, 21:00 CDT
Investigating - We are currently experiencing intermittent issues with the Reporting Entity Creation feature with our BDS service due to ongoing AWS Outage in AMERS Region. 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.
May 7, 21:22 CDT
Certificate Manager Enterprise Cloud-Rest Service unavailable in OCI PROD
Resolved - The issue has been fully mitigated, and the services have been restored. We will work on the root cause analysis.
May 8, 16:27 CDT
Investigating - Dear Customers,

We wanted to inform you that Certificate Manager service temporarily unavailable In OCI production environment. Technical teams are currently working on it with high priority, more details to follow soon.

Thank you for your understanding and patience .
May 8, 09:41 CDT
Onesource GTM - Export Management Partial Outage
Resolved - This incident has been resolved and we will continue to monitor.
May 8, 14:10 CDT
Identified - Thomson Reuters is aware of an issue with the Export Management module and the DPS connection. The team is working on a remediation now and will update here once that is in place.
May 8, 13:15 CDT
Onesource Indirect Tax Enterprise Rest API outage in UAT(AMER/EMEA/OCI)
Resolved - This incident has been resolved.
May 8, 00:15 CDT
Monitoring - A fix has been implemented and we are monitoring the results.
May 7, 23:15 CDT
Update - We want to keep you informed: as of May 07, 2026 at 19:33 CST, customers may be experiencing a complete outage with the Tax Calculation API feature in our OneSource Indirect Tax Enterprise service. The affected regions include UAT AMER, EMEA, and OCI.

The good news is that our team has already identified the root cause and is actively working to restore full service as quickly as possible.

We truly appreciate your patience and understanding during this time. Please continue to monitor this page for live updates, and we will keep you informed every step of the way.
May 7, 21:12 CDT
Investigating - We are currently experiencing an issue with the Tax calculation API feature with our Onesource Indirect Tax Enterprise
service, which is temporarily unavailable.
May 7, 20:58 CDT
May 7, 2026
Delay in Data for reports and analytics service in AMER PROD
Resolved - This incident has been resolved.
May 7, 19:09 CDT
Investigating - Reports and Analytics Service in AMER PROD is currently experiencing delay of around 8 hours. We are working on the data catch up. Will notify once complete.
May 6, 19:43 CDT
Failed to load account information. Please try again.
Resolved - This incident has been resolved.
May 7, 15:48 CDT
Monitoring - The hotfix has been deployed. The Failed to load account information error is no longer being seen when launching Indirect Tax Compliance.

Additionally, the tabs within Indirect Tax Compliance should no longer load blank pages.
May 7, 10:48 CDT
Identified - We have identified the underlying cause and have developed a code fix to address the issue. We plan to deploy a hotfix to Production for ONESOURCE Indirect Compliance (EMEA) at 21:00 IST / 16:30 BST. We will provide an update to confirm once the deployment is complete.

Again, we would like to apologise for the inconvenience.
May 7, 10:29 CDT
Update - We are continuing to investigate this issue.
May 6, 08:36 CDT
Investigating - We're aware of users facing an error of "Failed to load account information. Please try again." when launching ONESOURCE Indirect Tax Compliance. We're also aware of users facing blank tabs within ONESOURCE Indirect Tax Compliance.

These issues are being investigated with a high priority by our Platform teams.

Resetting the user via Administration > Edit > Product Permissions tab: Indirect Tax Compliance by one of the Platform administrators should resolve the issue.

Please raise a case with support if the issue persists.

Apologies for the inconvenience
May 6, 03:33 CDT
APAC - ONESOURCE Platform Security Maintenance Application server patching for April 2026 .
Completed - The scheduled maintenance has been completed.
May 7, 15:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 7, 07:00 CDT
Scheduled - ONESOURCE Platform will be undergoing maintenance in APAC on Thursday, May 7, 2026, 7 AM CDT - 3 PM CDT.
Users may experience degraded performance from 07:00 AM CDT to 07:30 AM CDT and 11:00 AM CDT to 11:30 AM CDT 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.
Apr 22, 14:10 CDT
Reports and Analytics release Version 2026.04 in AMER UAT region
Completed - The scheduled maintenance has been completed.
May 7, 11:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 7, 04:00 CDT
Scheduled - The deployment of Reports and Analytics release version 2026.04 in the AMER UAT environment is scheduled for 04:00 AM to 11:00 AM CDT. Rest assured that your access to the user interface and tax calculation services will not be affected during this maintenance period.
Apr 14, 05:40 CDT
ONESOURCE Fringe Benefits Tax
Completed - The scheduled maintenance has been completed.
May 7, 09:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 7, 05:30 CDT
Scheduled - ONESOURCE Fringe Benefits Tax will be unavailable from Thursday May 7th 2026, 20:30 AEST to Friday May 8th, 2026 00:30 AEST
May 6, 20:21 CDT
May 6, 2026
Delay in Data for reports and analytics service in AMER PROD
Resolved - This incident has been resolved.
May 6, 16:35 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.
May 6, 00:37 CDT
Update - Reports and Analytics Service in AMER PROD is currently experiencing delay of around 7 hours. We are working on the data catch up. Will notify once complete.
May 5, 19:02 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.
May 5, 09:03 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.
May 5, 01:33 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.
May 4, 19:11 CDT
Reports and Analytics release Version 2026.04 in EMEA UAT region
Completed - The scheduled maintenance has been completed.
May 6, 15:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 6, 08:00 CDT
Scheduled - The deployment of Reports and Analytics release version 2026.04 in the EMEA UAT environment is scheduled for 08:00 AM to 3:00 PM CDT. Rest assured that your access to the user interface and tax calculation services will not be affected during this maintenance period.
Apr 14, 05:42 CDT
ONESOURCE IDT Determination Enterprise Cloud – Scheduled maintenance in the AWS AMER PROD environment (May 06)
Completed - The scheduled maintenance has been completed.
May 6, 09:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 6, 05:00 CDT
Scheduled - We are performing a scheduled maintenance in ONESOURCE Determination Enterprise Cloud AWS AMER PROD environment on May 06. This activity may cause brief interruptions to tax calculations. Failed transactions must be reprocessed by customers after maintenance.
May 4, 16:13 CDT
UAT - ONESOURCE Platform Security Maintenance Application server patching for April 2026.
Completed - The scheduled maintenance has been completed.
May 6, 08:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 6, 00:00 CDT
Scheduled - ONESOURCE Platform will be undergoing maintenance in UAT on Wednesday, May 6, 2026, 12 AM CST - 8 AM CST.

Users may experience degraded performance from 00:00 AM CST to 00:30 AM CST and 04:00 AM to 04:30 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.
Apr 22, 14:10 CDT
OSPI Platform – AMER Emergency maintenance for May 2026
Completed - The scheduled maintenance has been completed.
May 6, 07:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 6, 03:00 CDT
Scheduled - ONESOURCE Platform will be performing scheduled maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services, 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.
May 4, 12:08 CDT
ONESOURCE Statutory Reporting - Web [EMEA]
Completed - The scheduled maintenance has been completed.
May 6, 01:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 5, 19:30 CDT
Scheduled - ONESOURCE Statutory Reporting - Web [EMEA] will be undergoing scheduled maintenance during May 6, 2026 01:30 BST to May 6, 2026 07:30 BST.
Apr 30, 07:40 CDT
May 5, 2026
OSPI Platform – EMEA Emergency maintenance for May 2026
Completed - The scheduled maintenance has been completed.
May 5, 18:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 5, 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, 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.
May 4, 12:08 CDT
OSPI Platform – APAC Emergency maintenance for May 2026
Completed - The scheduled maintenance has been completed.
May 5, 12:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 5, 08:00 CDT
Scheduled - ONESOURCE Platform will be performing emergency maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services, 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.
May 4, 12:08 CDT
ONESOURCE Income Tax and GoSystem Tax RS - PDF Print returns Error
Resolved - This incident has been resolved.
May 5, 10:53 CDT
Investigating - We are currently experiencing an issue with the Print to PDF feature with our ONESOURCE Income Tax and GoSystem Tax RS 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.
May 5, 09:57 CDT
ONESOURCE Determination – Configuration API Version 2026.03 Release Information (AMERS Region)
Completed - The scheduled maintenance has been completed.
May 5, 08:01 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 5, 04:00 CDT
Scheduled - ONESOURCE Determination – Configuration API Version 2026.3 is being deployed in the AMERS Production environment. No downtime is expected during this deployment window.
May 5, 03:43 CDT
ONESOURCE Determination – Configuration API Version 2026.3 Release Information (EMEA Region)
Completed - The scheduled maintenance has been completed.
May 5, 08:01 CDT
Scheduled - ONESOURCE Determination – Configuration API Version 2026.3 is being deployed in the EMEA Production environment. No downtime is expected during this deployment window.
May 5, 03:46 CDT
OSPI Platform – UAT Emergency maintenance for May 2026
Completed - The scheduled maintenance has been completed.
May 5, 07:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 5, 03:00 CDT
Scheduled - ONESOURCE Platform will be performing emergency maintenance on our systems to ensure optimal performance and reliability. During this maintenance window, certain services, 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.
May 4, 12:08 CDT
Intermittent High Latency and failures for Tax calculations in OCI PROD
Resolved - This incident has been resolved.
May 5, 01:33 CDT
Update - We are currently experiencing intermittent issues with the Tax calculations feature with our OneSource Indirect Tax Determination Enterprise service. Our team is actively working to resolve this matter as quickly as possible. We apologize for any inconvenience and appreciate your understanding and patience.

Further updates will be provided here as soon as we have more information. If you have any questions, please contact Customer Support.
May 5, 00:23 CDT
Investigating - We are currently experiencing intermittent issues with Tax calculations feature with OneSource Indirect Tax Determination Enterprise service.
May 5, 00:03 CDT
ONESOURCE Income Tax Maintenance
Completed - The scheduled maintenance has been completed.
May 5, 01:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 5, 00:00 CDT
Scheduled - ONESOURCE Income Tax will be undergoing maintenance on Tuesday, May 5th between 12:00am – 1:30am CT.
May 4, 11:23 CDT
ONESOURCE Statutory Reporting - Web [AMERS]
Completed - The scheduled maintenance has been completed.
May 5, 01:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 4, 19:30 CDT
Scheduled - ONESOURCE Statutory Reporting - Web [AMERS] will be undergoing scheduled maintenance during May 4, 2026 20:30 EDT to May 5, 2026 02:30 EDT.
Apr 30, 07:39 CDT
May 4, 2026
ONESOURCE Trusts [APAC]
Completed - The scheduled maintenance has been completed.
May 4, 14:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 4, 10:30 CDT
Scheduled - ONESOURCE Trusts [APAC] will undergo scheduled maintenance and will be unavailable from Tuesday, May 5th 01:30 AEST to 05:30 AEST.
Apr 28, 13:18 CDT
ONESOURCE Corporate Tax NextGen [APAC]
Completed - The scheduled maintenance has been completed.
May 4, 14:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 4, 10:30 CDT
Scheduled - ONESOURCE Corporate Tax NextGen [APAC] will undergo scheduled maintenance and will be unavailable from Tuesday, May 5th 01:30 AEST to 05:30 AEST.
Apr 28, 13:16 CDT
Parada da Aplicação - Manutenção PROD02
Completed - The scheduled maintenance has been completed.
May 4, 12:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 4, 11:00 CDT
Scheduled - Teremos uma parada da aplicação das 11:00hs às 12:30hs.
Considere a aplicação fora do ar neste período.
Para entendimento da aplicação que está instalada acesse.
May 4, 09:14 CDT
ONESOURCE Statutory Reporting - Web [APAC]
Completed - The scheduled maintenance has been completed.
May 4, 11:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 4, 05:00 CDT
Scheduled - ONESOURCE Statutory Reporting - Web [APAC] will be undergoing scheduled maintenance during May 4, 2026 20:00 AEDT to May 5, 2026 02:00 AEDT.
Apr 30, 07:39 CDT
Instabilidade Momentânea PROD02
Resolved - Este incidente foi resolvido.
May 4, 10:49 CDT
Investigating - Informamos que identificamos uma instabilidade momentânea generalizada na aplicação ONESOURCE Tax One, especificamente no ambiente PROD02.
O impacto percebido pelos usuários está relacionado à lentidão na navegação entre telas, aumento no tempo de execução dos processamentos e processos abortados.
Nosso time técnico permanece em sala na execução de ações imediatas que têm previsão de aproximadamente 1 hora para solução.
Para identificar o ambiente em que sua instalação está alocada acesse.
May 4, 09:03 CDT
Oauth token failures in EMEA PROD
Resolved - This incident has been resolved.
May 4, 09:01 CDT
Monitoring - We experienced intermittent issue with tax calculation REST API in the ONESOURCE Indirect Tax Determination - EMEA Production environment between 08:02 AM and 08:06 AM ET on May 2nd. The issue is already mitigated now.

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

Further details will be provided in the formal RCA. If you have any questions, please contact Customer Support.
May 2, 08:19 CDT
Investigating - We are currently experiencing intermittent issues with the Tax Calculations feature with our Onesource Indirect Tax Determination Enterprise service.
May 2, 08:13 CDT
May 3, 2026
ONESOURCE GTM – AWS Maintenance
Completed - The scheduled maintenance has been completed.
May 3, 17:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 3, 00:00 CDT
Scheduled - Thomson Reuters will be performing scheduled maintenance on Sunday, May 3rd, 2026 beginning at 1 AM Eastern time and will conclude by Sunday, May 3rd, 2026 at 6 PM Eastern time.
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Feb 25, 12:44 CST
Manutenção Programada PROD02
Completed - The scheduled maintenance has been completed.
May 3, 10:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 1, 22:00 CDT
Scheduled - Com a finalidade de melhoria contínua de nossas aplicações, será realizada manutenção programada neste final de semana.

Impacto: Durante o período de manutenção haverá indisponibilidade da funcionalidade
Para identificar o ambiente em que sua instalação está alocada acesse.

Observação: considere OSMastersaf02 = PROD02.
Apr 30, 10:45 CDT
May 2, 2026
Intermittent tax calculation failures in OCI PROD AMER
Resolved - This incident has been resolved.
May 2, 23:30 CDT
Investigating - Dear Customers,

We experienced intermittent issues with tax calculation service in the ONESOURCE Indirect Tax Determination - AMER Production environment between 12:26 AM and 12:30 AM EST on May 3rd. The issue is already mitigated.

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

Further details will be provided in the formal RCA. If you have any questions, please contact Customer Support.
May 2, 23:25 CDT
May 1, 2026
APAC - ONESOURCE Platform Emergency Maintenance
Completed - The scheduled maintenance has been completed.
May 1, 16:00 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 1, 13:00 CDT
Scheduled - ONESOURCE Platform will be performing an emergency maintenance in APAC on our systems to ensure optimal performance and reliability.

ONESOURCE Platform will be available during this maintenance.

We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Apr 22, 13:40 CDT
ONESOURCE Income Tax
Completed - The scheduled maintenance has been completed.
May 1, 01:30 CDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 1, 00:00 CDT
Scheduled - ONESOURCE Income Tax will be undergoing maintenance on Friday, May 1st between 12:00am – 1:30am CT.
Apr 27, 15:07 CDT
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