Stay informed about coronavirus (COVID-19): Connecticut residents are urged to continue taking precautions to prevent the spread of COVID-19. For the latest information, visit ct.gov/coronavirus.
Walk-in services at all DRS branch office locations remain suspended.
Email the Priority One Taxpayer Assistance Program: DRSPriorityOne_CollectionsAssist@po.state.ct.us.
Please check our
Frequently Asked Questions page.
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IP 2006(9), International Fuel Tax Agreement Manual
IP 2006(19), Guide to Calculating Annualized Estimated Corporation Business Tax Installments and Worksheet CT-1120AE
IP 2006(35), Building Contractors Guide to Sales and Use Taxes
IP 2006(29), Licensed Non-Stamping Distributor's Guide to Connecticut Cigarette Tax Laws and Other Cigarette-Related Laws
IP 2006(24), Estimated Connecticut Income Taxes
IP 2006(17), Personal Taxes
IP 2006(28), Licensed Stamping Distributor's Guide to Connecticut Cigarette Tax Laws and Other Cigarette-Related Laws
IP 2006(15), Guide to Connecticut Business Tax Credits
IP 2006(25), A Guide to Calculating Your Annualized Estimated Income Tax Installments and Worksheet CT-1040 AES
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IP 2006(26), Licensed Cigarette Dealer's Guide to Connecticut Cigarette Tax Laws and Other Cigarette-Related Laws
IP 2006(14), Federal/State Electronic Filing Handbook
IP 2006(21), Q & A on the Business Entity Tax
IP 2006(27), Guide to Connecticut Cigarette Tax Laws and Other Cigarette-Related Laws for Persons Operating and Servicing Fewer Than 25 Cigarette Vending Machines
IP 2006(18), Connecticut Tax Tips for Senior Citizens