Thomson Reuters incident
Access issues are being observed for several ONESOURCE products. We are working on resolving the issue
Resolved after 2 hours 16 minutes, affecting AMERS (onesourcetax.com), on July 31, 2026.
The ONESOURCE access issues have been mitigated for most customers. We are continuing to monitor the environment and investigate the root cause to ensure the incident has been fully mitigated.
Affected components
Update timeline
- investigating Jul 31, 2026, 07:59 PM UTC
We are currently experiencing intermittent issues with the ONESOURCE Access feature with our ONESOURCE Login Services. Our team is actively working to resolve this matter as quickly as possible. We apologize for any inconvenience and appreciate your understanding and patience. Further updates will be provided here as soon as we have more information. If you have any questions, please contact Customer Support.
- identified Jul 31, 2026, 08:20 PM UTC
We continue to investigate access issues impacting multiple ONESOURCE products. Our teams are actively working on mitigation efforts and are beginning to see signs of service recovery in parts of the platform. Customers may still experience intermittent issues while we work toward full restoration.
- monitoring Jul 31, 2026, 08:36 PM UTC
The ONESOURCE access issues have been mitigated for most customers. We are continuing to monitor the environment and investigate the root cause to ensure the incident has been fully mitigated.
- resolved Jul 31, 2026, 10:15 PM UTC
This incident has been resolved.
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