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Tax filing resources for individuals, businesses, and other online filing methods.
Find information on filing requirements, income tax information, resources, and FAQs.
The Department of Revenue Services (DRS) provides a list of information for business owners regarding registering a business and information on business taxes.
Find a list of all current year forms from the Connecticut Department of Revenue Services.
Businesses can find information on filing sales and use tax, filing due dates, tax rates, and more.
Find the current and previous year mill rate listings by city/town.
Use this application to register your business with the Connecticut Department of Revenue Services.
Fill out this form for Connecticut tax withholdings.