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Connecticut Department Of Revenue, Connecticut Tax

Connecticut Business Corporate Tax, Connecticut Personal Income Tax, Connecticut Sales Tax Rates

What is the Connecticut corporate net income tax rate?


There is a $250 minimum payment to submit the tax return, even if you don’t make any money. There is also the BET tax with a $200 minimum.

What are the Connecticut personal net income tax rates?

$0-10,000      3%
$10,000+       5%

What is the average Connecticut sales tax rate?


Are there standard deductions?

Single:  n/a
Joint:  n/a

Are there personal exemptions?

Single:  $13,000
Dependants:  $0

What forms do you file for your Connecticut taxes?

C corporations:   Form CT-1120
S corporations:  Form CT-1120SI
Partnerships:  Form CT-1065
Individual:  Form CT-1040 Non resident: CT-1040NR

Estimated tax payments?

Form CT 1040ES. Connecticut follows the IRS standards for estimated payments. If you will owe $1000 or more in tax for the current year, you are required to make 90% of the tax due, over quarterly payments. It has to be at least 100% of the previous year, even if you think you won’t make as much in the current year.

Connecticut Department of Revenue:

Connecticut Department of Revenue
25 Sigourney Street STE 2
Hartford, CT 06106
T: 800-382-9463 or 860-297-5962

Department of Revenue Website

If you use Northwest Registered Agent as your Connecticut non profits for only $100.

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