Thomson Reuters incident

Intermittent failures for Tax calculations in AMER PROD

Thomson Reuters experienced a notice incident on May 11, 2026 affecting ONESOURCE Determination Enterprise Cloud (AWS AMER), lasting 2h 55m. The incident has been resolved; the full update timeline is below.

Started: May 11, 2026, 07:20 AM UTC
Resolved: May 11, 2026, 10:16 AM UTC
Duration: 2h 55m
Detected by Pingoru: May 11, 2026, 07:20 AM UTC

Affected components

ONESOURCE Determination Enterprise Cloud (AWS AMER)

Update timeline

monitoring May 11, 2026, 07:20 AM 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 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.
resolved May 11, 2026, 10:16 AM UTC

This incident has been resolved.