Top-rated Tax and Accounting Software

The CS Professional Suite from Thomson Reuters

More than 50,000 accountants and tax professionals rely on our integrated accounting software and services for tax preparation, document management, payroll processing, practice management, and much more.

By applying the most advanced technologies and deep product integration, our tax and accounting software enables firms to experience unprecedented productivity, achieve maximum profitability, and provide unsurpassed client service.

We invite you to experience our software in action, browse outstanding product reviews, and read testimonials from some of our many satisfied clients.

Last Week for Early Bird Discount

28th Annual CS Users' Conference

Grapevine TX – November 5-8, 2008

The Early Bird discount and Free Financing end August 29!

Register now...

2008 Best Practices Summer Series classes

Summer Series training classes

Watch your firm's skills grow this summer, with best practices training available regionally or online!

Browse our classes and special discounts

The Technology Innovation Awards

Technology Innovation Awards

Engagement CS is one of two Thomson Reuters products honored by The CPA Technology Advisor.

Read the press release

What's Your Story? Share It And Win

"I Love My Job"

Read success stories from our users, and tell us your story for a chance to appear in a forthcoming ad!

Visit our microsite

News & Events

Support & Services

Labor Day closure

CS Professional Suite support will be unavailable on Monday, September 1st, as our offices will be closed for Labor Day.

Visit our Knowledgebase for 24/7 online assistance

Website maintenance

CS Web Accounts will be temporarily unavailable on Saturday, August 30th, while we implement scheduled enhancements to our website. We apologize for any inconvenience.

Review our recent website enhancements

Products & Solutions

UltraTax CS icon

UltraTax CS earns top score with IRS

The IRS's 2007 Software Error Reject Code Report ranked UltraTax CS #1 for federal 1040 electronic filing acceptance.

Read Press Release

More News & Events
Subscribe to our News Feed

Trade Shows

  • 8/27-8/28
    Atlanta, GA
    Southeastern Accounting Show
  • 8/28-8/31
    Fajardo, Puerto Rico
    CPA Convention 2008
  • 9/9-9/10
    San Diego, CA
    IRS Nationwide Forum

More Trade Shows

The Pulse

What's your longest client relationship?