Thomson Reuters incident
High latency and Intermittent failures for Tax calculations in AMER PROD
Resolved after 31 minutes, affecting ONESOURCE Determination Enterprise Cloud (AWS AMER), on May 11, 2026.
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.
Affected components
Update timeline
- identified May 11, 2026, 12:44 PM UTC
We are currently experiencing intermittent issues with the Tax calculation Service feature with our Onesource Indirect Tax Determination Enterprise service.
- resolved May 11, 2026, 01:15 PM UTC
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.
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