Connecticut State Department of Revenue Services

Individual Income Tax Filers:  DRS will be holding a webinar on Wednesday, April 2, at 10:00 a.m.  This session will provide information for filing 2024 Connecticut income tax returns and helpful tips for electronically filing such returns. Select here to register.

New Businesses:  DRS will be holding a webinar on Wednesday, April 16, at 10:00 a.m. This session will provide an overview of the requirements for registering a new business with DRS. Select here to register.

Tax Guides for Businesses

  1. IP 2018(5), Getting Started in Business
  2. Status Letters
  3. IP 2009(13), Sales and Use Taxes Guide for Manufacturers, Fabricators, and Processors
  4. IP 2018(2), Building Contractors' Guide to Sales and Use Taxes
  5. Online Guide to Connecticut Business Tax Credits
  6. DRS-045, Can I Be Held Personally Liable For Payment of Business-Related Taxes?