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.

Withholding Tax - Nexus

Anyone who maintains an office in Connecticut or who transacts business within this state and is considered an employer for federal tax purposes is an employer for Connecticut tax purposes and must withhold Connecticut income tax. An employer must register with the Department of Revenue Services by completing REG-1, Business Taxes Registration Application. This application is also used to register for most other state business taxes, including the sales and use tax and corporation business tax.

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