Thomson Reuters incident
Failures Experienced for Tax calculations in UAT AWS and OCI due to Scheduled Maintenance
Resolved after 14 hours 36 minutes, affecting ONESOURCE Determination Enterprise Cloud (AWS AMER) and ONESOURCE Determination Enterprise Cloud (AWS EMEA) and 1 more, on July 23, 2026.
We are continuing to investigate this issue.
Affected components
Update timeline
- investigating Jul 23, 2026, 05:02 AM UTC
Dear Customers, We wanted to inform you that we have observed failures while accessing IDT Tax calculation service in UAT environment for Amer and EMEA regions in AWS and OCI between 22:15 CDT to 22:21 CDT on Jul 22, 2026. This was due to ongoing scheduled maintenance activity. Thank you for your understanding and patience
- investigating Jul 23, 2026, 05:02 AM UTC
We are continuing to investigate this issue.
- resolved Jul 23, 2026, 07:38 PM UTC
This incident has been resolved.
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