Connecticut State Department of Revenue Services

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- Walk-in services at all DRS branch office locations remain suspended.

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Tax Guides for Businesses

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