Thomson Reuters incident
Intermittent tax calculation failures in AMER and OCI PROD
Resolved on May 17, 2026, affecting ONESOURCE Determination Enterprise Cloud (AWS AMER) and ONESOURCE Determination Enterprise Cloud (OCI AMER).
We experienced intermittent issues with tax calculation service in the ONESOURCE Indirect Tax Determination - AMER and OCI Production environments between 07:06 AM and 07:12 AM CST on May 16th. 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.
Affected components
Update timeline
- resolved May 17, 2026, 12:08 AM UTC
We experienced intermittent issues with tax calculation service in the ONESOURCE Indirect Tax Determination - AMER and OCI Production environments between 07:06 AM and 07:12 AM CST on May 16th. 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.
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