50-State Sales Tax Compliance Guide
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Connecticut Sales & Use Tax Licensing

Licensing requirements for Connecticut businesses.

Business entities that sell tangible goods or offer services may need to register for sales and use taxes at the state level. Most states require businesses to either incorporate or foreign qualify prior to registering for a sales and use tax account, and many states also ask for the IRS issued EIN number as a part of tax registration.

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Sales & Use Tax Licensure

This section applies to businesses that are applying for a license in Connecticut for the first time.

Agency:Connecticut Department of Revenue Services

Form REG-1: Business Taxes Registration Application

Filing Method:

Form or online

Agency Fee:

$100 for sales and use tax

Remote Sales Threshold:

$100,000 in sales and 200 separate transactions

Enforcement Start Date: