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.
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UAT - ONESOURCE Platform Security Maintenance Application server patching for July 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
ONESOURCE Platform will be undergoing maintenance in UAT on Tuesday, Jul 21, 00:00 AM - 8:00 AM CDT.
Users may experience degraded performance from 00:00 AM CDT to 00:30 AM CDT and 04:00 AM to 04:30 AM CDT only.
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.
Users may experience degraded performance from 00:00 AM CDT to 00:30 AM CDT and 04:00 AM to 04:30 AM CDT only.
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), UAT Administration).