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ProWeb: How Do I file an Application for Extension of Time to File for Connecticut?

Connecticut allows an automatic ex-tension to October 15 if no additional tax is due and if a federal extension request is filed. If additional tax is due, file Form CT-1040 EXT, Application for Extension of Time to File Connecticut Income Tax Return for Individuals, to request an extension to October 15. If federal Form 4868 has been filed with the IRS, no reason for the request is required. If a federal extension was not requested, the taxpayer must have good cause for the Connecticut request. An extension of time to file does not extend the time to pay tax due

To access the Connecticut CT1040EXT, from the main menu of the Connecticut state return select: 

  • Miscellaneous Forms 
  • Extension of Time to File. Form CT1040EXT 

 

Note: Electronic filing is not supported in ProWeb for the state extension at this time. The federal extension payment may be sent electronically, however the state extension will have to be mailed. 

 

Additional Information: 

Connecticut State Tax Information

Where Do I Set Up Estimated Payments for Connecticut?