DRS: Business Tax Return and Payment Due Dates

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Department of
Revenue Services

25 Sigourney St Ste 2

Hartford CT 06106-5032

860-297-5962

(From anywhere)

1-800-382-9463

(Within Outside Greater

Hartford area only)

(TDD/TT Users only
call 860-297-4911)

Business Tax Return and Payment Due Dates

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Mandatory Electronic Filers	All Other Filers
2009 EFT Calendar of Payment Due Dates for Required to Pay Electronically NOTE: The EFT Calendar is for Mandated electronic filers ONLY To avoid possible penalty and interest charges, ACH debit taxpayers must initiate their transaction prior to 4:30pm. See calendar for exact due dates. IP 2007(8), Paying Connecticut Taxes by Electronic Funds Transfer	2009 Alphabetical Listing of Return and Due Dates by Tax Types

When it's time to file, please File Online. The Taxpayer Service Center (TSC) is a free, fast, easy, and secure way to conduct business with DRS.

Connecticut business taxpayers can electronically file and pay most Connecticut business tax returns using the Taxpayer Service Center (TSC-BUS).