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State of Connecticut
Business Income Tax Extensions

File Only a State Tax
Extension

$5.95 for a State Tax Extension PDF

 

File Your Business Federal
Tax Extension

IRS Form 7004 - $34.95

Your state extension PDF is FREE

General Instructions

Connecticut Filing Due Date: Corporation business tax returns are due on the 15th day of the month following the due date of the equivalent Federal return (for fiscal year filers) or May 15th for C-corps and April 15th for S-corps.

Extended Deadline with Connecticut Tax Extension: Connecticut offers a 6-month extension, which moves the filing deadline to October 1 (for calendar year filers).

Connecticut Tax Extension Form: Use Form CT-1120 to apply for a Connecticut extension. This form can be filed by paper mail or online via Connecticut’s Taxpayer Service Center (TSC). 

Connecticut Extension Payment Requirement: An extension of time to file is not an extension of time to pay. If you owe Connecticut tax, it must be paid by the original due date to avoid penalties and interest. You can mail your extension payment with Form CT-1120, or you can pay electronically through the Taxpayer Service Center (TSC).

Connecticut Tax Extension Tip: If you have filed a Federal tax extension, you do not have to give a reason for needing the Connecticut tax extension. But if you don’t have a valid Federal extension, you are required to provide “reasonable cause” for requesting an extension for your Connecticut return.

 

Connecticut State Income Tax Extension Forms

Website: Connecticut Department of Revenue Services

Form CT-1120 EXT (Application for Extension of Time to File Corporation Business Tax Return)

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FileLater provides a secure online solution for individuals and businesses seeking to e-file an IRS income tax extension. FileLater is an authorized IRS e-file provider and files both IRS 4868 and IRS 7004 forms electronically. Prices determined at the time of efile and are subject to change without notice.
Owned and Operated in the United States.

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Need help or support? Contact us

FileLater provides a secure online solution for individuals and businesses seeking to e-file an IRS income tax extension. FileLater is an authorized IRS e-file provider and files both IRS Form 4868 and IRS Form 7004 electronically. Prices determined at the time of efile and are subject to change without notice.
Owned and Operated in the United States.

© 2022 InterSearch Tax Solutions, Inc..