Welcome to the CS Professional Suite from Thomson Tax & Accounting

For nearly 30 years, we've served the needs of accountants and tax professionals exclusively with the broadest and most advanced line of seamlessly integrated software and services available, through the CS Professional Suite.

Your success is our mission. By applying the most advanced technologies and deep product integration, the CS Professional Suite enables users to experience unprecedented productivity, achieve maximum profitability, and provide unsurpassed client service.

We invite you to learn why more than 50,000 customers have chosen to partner with the CS Professional Suite.