Thomson Reuters incident

Intermittent High Latency for tax calculations in AWS AMER PROD

Thomson Reuters experienced a minor incident on April 1, 2026 affecting ONESOURCE Determination Enterprise Cloud (AWS AMER), lasting 1h 18m. The incident has been resolved; the full update timeline is below.

Started: Apr 01, 2026, 09:07 AM UTC
Resolved: Apr 01, 2026, 10:25 AM UTC
Duration: 1h 18m
Detected by Pingoru: Apr 01, 2026, 09:07 AM UTC

Affected components

ONESOURCE Determination Enterprise Cloud (AWS AMER)

Update timeline

investigating Apr 01, 2026, 09:07 AM UTC

We are currently experiencing intermittent issues with the Tax calculation service feature with our Onesource Indirect Tax Determination Enterprise service.
monitoring Apr 01, 2026, 10:06 AM UTC

A fix has been implemented and we are monitoring the results.
resolved Apr 01, 2026, 10:25 AM UTC

Dear Customers, We experienced intermittent high latency issues with tax calculations requests for SOAP & REST services in the ONESOURCE Indirect Tax Determination - AMER Production environment between 4:30 AM and 4:51 AM ET on 1st April. The issue is 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.