Connecticut | Personal Tax Extension | Form CT-1040 EXT | Application for Extension of Time to File Connecticut Income Tax Return for Individuals

Modified on Wed, 12 Apr 2023 at 05:20 AM

State Abbreviation CT
State Name Connecticut
Extension Status Approved with Federal Extension
Return Due Date

April 18, 2023

Extended Due Date

October 16, 2023

Other Information
  • Connecticut grants an automatic 6 month extension provided you have been approved for a federal extension by the IRS.
  • You will be subject to interest and may be subject to a penalty on any amount of tax not paid on or before the original due date of your return.
Online Payment Connecticut | Online Tax Extension Payment
Payment Voucher Title Form CT-1040 EXT, Application for Extension of Time to File Connecticut Income Tax Return for Individuals
State Payment Agency Department of Revenue Services, State of Connecticut
Mailing Address with Payment No payment included:

Department of Revenue Services, State of Connecticut
P.O. Box 2976
Hartford, CT 06104-2976.

With payment included:

Department of Revenue Services, State of Connecticut
P.O. Box 2977
Hartford, CT 06104-2977
Online Payment Options | Credit Card Visit www.acipayonline.com and select “state payments.” A convenience fee will be charged by the service provider.
Online Payment Options | ACH Debit To make direct payment from a bank account, visit the TSC at https://portal.ct.gov/TSC and follow the prompts or visit https://drsindtax.ct.gov to make a payment without logging into the TSC.
Failure to File Penalties Greater of $50 or 10% of unpaid tax.
Failure to Pay Penalties 10% of unpaid tax.

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