How to find your firm ID

Alerts and notices

You may need your firm ID when you contact support or complete forms related to your Thomson Reuters CS Professional Suite software. You can find your firm ID in your CS Web Account or in your CS Professional Suite applications.

CS Web Account

Log in to and look in the My Firm section of the page.

CS Professional application

Open your CS Professional application (such as Accounting CS or UltraTax CS) and choose Help > About.