Welcome to the Thomson Reuters Corporate Tax and Trade Status page – This is the centralized resource for real-time visibility into the performance and availability of all Thomson Reuters Corporate Tax and Trade products.
This portal provides updates on service status, ongoing incidents, scheduled maintenance, and performance issues across our Corporate Tax and Trade product suite. Our goal is to keep you informed with timely, accurate information so you can plan your work accordingly.
For proactive notifications, subscribe to updates to receive alerts about status changes and incidents affecting your specific Corporate Tax and Trade products.
UAT - ONESOURCE Platform Security Maintenance Database server patching for April 2026.
Scheduled Maintenance
Report for Thomson Reuters Corporates
Completed
The scheduled maintenance has been completed.
In progress
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Scheduled
Message: ONESOURCE Platform will be undergoing maintenance in UAT on Saturday May 09, 12:30 AM CDT - 07:30 AM CDT.
ONESOURCE Platform will be unavailable from Saturday May 09, 4:00 AM CDT to 4:15 AM CDT
In case of any issues, we recommend the users to please retry.
We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
ONESOURCE Platform will be unavailable from Saturday May 09, 4:00 AM CDT to 4:15 AM CDT
In case of any issues, we recommend the users to please retry.
We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
This scheduled maintenance affected: Platform (AMERS UAT (uat.onesourcetax.com), AMERS UAT (uat.onesourcelogin.com)).