NEW Highway Use Fee - Registration is now open for certain carriers to register for the new Connecticut Highway Use Fee - Click here for more information.


IMPORTANT INFORMATION - the following tax types are now available in myconneCT: Individual Income Tax, Attorney Occupational Tax, Unified Gift and Estate Tax, Controlling Interest Transfer Tax, and Alcoholic Beverage Tax. - Click here for the latest information.

Modernized e-File (MeF)

General Information

The Connecticut Department of Revenue Services, in conjunction with the Internal Revenue Service (IRS), accepts electronically filed business income tax and individual income tax returns as part of the IRS Modernized e-File (MeF) Program. MeF is a web-based system that allows electronic filing of tax returns through the Internet. MeF uses the widely accepted Extensible Markup Language (XML) format.

Electronic Filing Information for Taxpayer Service Center (TSC)

Individuals
Businesses