Department of Revenue Services

Official Website: https://portal.ct.gov/DRS

The mission of the Department of Revenue Services is to instill public confidence in the integrity and fairness of tax collection; achieve the highest level of voluntary taxpayer compliance; continuously improve agency performance; contribute to the fiscal and economic well-being of the state; and provide a positive and professional workplace.

Forms & Documents

Browse all Department of Revenue Services government forms

21 - 40 of 98 forms

Form Title Topics
Amended Corporation Business Tax Return
Amended Corporation Business Tax Return Instructions
Amended Income Tax Return for Individuals
Application for Exchange of Research and Development or Research and Experimental
Application for Extension of Time for Payment of Income Tax
Application for Extension of Time to File Connecticut Income Tax Return for Individuals
Application for Extension of Time to File Corporation Business Tax Return (with instructions)
Apprenticeship Training Tax Credit
Bioscience Worksheet
Business Tax Credit Summary
Certificate of Authority to Collect Connecticut Use Tax
Change of Address
Change of Resident Status - Special Accruals Connecticut Surety Bond Form
Change of Resident Status - Special Accruals Other Acceptable Security Form
Claim of Right Credit
Computation of Interest Due on Underpayment of Estimated Tax (with instructions)
Connecticut Alternative Minimum Tax Return
Connecticut Electronic Filing Payment Voucher
Connecticut Electronic Withdrawal Payment Record
Corporation Business Tax Change of Address

Contact Information & Office Locations

All 4 contact points

Bridgeport Office

Address:
10 Middle Street
Bridgeport, CT 06604

Phone numbers:
  • (877) 729-6691
Hours of operation:
  • Monday through Friday 8:30 a.m. – 4:30 p.m.

Main Office

Address:
450 Columbus Blvd.
Suite 1
Hartford, CT 06103

Phone numbers:
  • (860) 297-5962
  • (800) 382-9463 (within CT, outside Greater Hartford area only)
  • (860) 297-4911 (Hearing Impaired, TDD/TT users only)
Emails:
  • drs.webmaster@po.state.ct.us
Hours of operation:
  • Monday through Friday 8:30 a.m. – 4:30 p.m.

Norwich Office

Address:
401 West Thames Street
Building #700
Norwich, CT 06360

Phone numbers:
  • (877) 729-6691
Hours of operation:
  • Monday through Friday 8:30 a.m. – 4:30 p.m.

Waterbury Office

Address:
55 West Main Street
Suite 100
Waterbury, CT 06702

Phone numbers:
  • (877) 729-6691
Hours of operation:
  • Monday through Friday 8:30 a.m. – 4:30 p.m.

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