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.
ONESOURCE IDT Determination Enterprise Cloud - Urgent Platform Maintenance in the UAT Environment
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.
Update
We will be undergoing scheduled maintenance during this time.
Scheduled
We are performing an urgent ONESOURCE Determination Enterprise Cloud platform maintenance activity in the UAT environment on January 9, 2026, between 1:00 AM - 2:00 AM CST. You might encounter occasional errors with the User Interface and REST APIs during this activity, which may result in temporary tax calculation issues. If this happens, simply try your request again.
This scheduled maintenance affected: Indirect Tax (ONESOURCE Determination Enterprise Cloud (AWS AMER), ONESOURCE Determination Enterprise Cloud (AWS EMEA), ONESOURCE Determination Enterprise Cloud (OCI AMER)).