Thomson Reuters incident

High latency and Intermittent failures for Tax calculations in AMER PROD

Thomson Reuters experienced a minor incident on May 11, 2026 affecting ONESOURCE Determination Enterprise Cloud (AWS AMER), lasting 31m. The incident has been resolved; the full update timeline is below.

Started: May 11, 2026, 12:44 PM UTC
Resolved: May 11, 2026, 01:15 PM UTC
Duration: 31m
Detected by Pingoru: May 11, 2026, 12:44 PM UTC

Affected components

ONESOURCE Determination Enterprise Cloud (AWS AMER)

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.