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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Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted Mar 31, 2026 - 23:00 CDT
Scheduled
ONESOURCE Determination Original Cloud UAT is undergoing maintenance from March 31st, 2026 at 11:00 PM CST to April 1st, 2026 at 2:00 AM CST. During this maintenance window, you will not be able to access the ONESOURCE Determination Original Cloud application in the UAT Environment. However, you can continue to access the Tax Calculation services and other Determination functions.
Posted Mar 25, 2026 - 23:56 CDT
This scheduled maintenance affected: Indirect Tax (ONESOURCE Determination Original Cloud (AMER)).
