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Connecticut State Taxes

Connecticut State Taxes

Connecticut State Tax ? Individual Income Tax

The individual income tax rates for Connecticut are as follows:

  • 3% on the first $10,000 of taxable income
  • 5% on taxable income of $10,001 or more

The following individuals must file a Connecticut income tax return (based on filing status):

  • ‘ ‘Single’ with gross income over $12,000
  • ‘ ‘Married filing separately’ with gross income over $13,000
  • ‘ ‘Head of household’ with gross income over $19,000
  • ‘ ‘Married filing jointly’ or ‘qualifying widow(er) with dependent child’ with     gross income over $24,000

Connecticut State Tax ? Corporate Tax

The corporate business tax applies to corporations doing business in Connecticut. There are two different corporate tax rates ? corporations must use/pay whichever rate results in a higher tax. The tax rates are as follows:

  • 7.5% tax on corporate income, or
  • 3.1 mills per dollar of capital (minimum tax of $250; maximum tax of $1,000,000)

Connecticut State Tax ? Sales & Use Tax

Connecticut’s sales and use tax applies to taxable goods and services at a rate of 6%.

Connecticut State Tax ? Property Tax

Property tax is administered by local governments (cities and towns), not by the State Department of Revenue. All real and personal property in Connecticut is subject to taxation. For more information about property tax, contact your local assessor’s office.

Connecticut State Tax Forms

Form CT-1040 (Connecticut Resident Income Tax Return)
Form CT-1040 EXT (Application for Extension of Time to File Connecticut Income Tax Return for Individuals)
Form CT-1040ES (Estimated Connecticut Income Tax Payment Coupon for Individuals)
Form CT-1040NR/PY (Connecticut Nonresident and Part-Year Resident Income Tax Return)
Form CT-1040X (Amended Connecticut Income Tax Return for Individuals)
Form OP-186 (Individual Use Tax Return)
Form CT-1120 (Corporation Business Tax Return)

Connecticut State Tax Resources

State of Connecticut Department of Revenue Services:

File returns, make payments, update your information and more at the Department of Revenue Services ‘Online Services’ center:

Connecticut State Income Tax Calculator:

Connecticut State Income Tax Tables:

Connecticut Property Tax Credit Calculator:

Connecticut Department of Revenue ‘Taxpayer Answer Center:’

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