Connecticut State Tax Guide

State tax rates and rules for income, sales, property, fuel, cigarette, and other taxes that impact Connecticut residents.

Bottom Line

Middle-Class Families: Least Tax-Friendly (Go to the Kiplinger Tax Map for Middle-Class Families)

Retirees: Least Tax-Friendly (Go to the Kiplinger Tax Map for Retirees)

The Constitution State is a tax nightmare for many residents. Connecticut's median property tax rate is the third-highest in the U.S., so the $10,000 cap on the federal tax deduction for state and local taxes stings a bit more here.

Subscribe to Kiplinger’s Personal Finance

Be a smarter, better informed investor.

Save up to 74%

Sign up for Kiplinger’s Free E-Newsletters

Profit and prosper with the best of expert advice on investing, taxes, retirement, personal finance and more - straight to your e-mail.

Profit and prosper with the best of expert advice - straight to your e-mail.

Sign up

Income taxes are generally above average, too. But at least things are improving for seniors. The state is gradually eliminating taxes on pensions and annuities for retirees with income under a certain threshold, and the state will start phasing out its tax on distributions from traditional IRAs for many retirees starting in 2023.

Connecticut also imposes an estate tax and a gift tax (it's the only state with a gift tax).

One good thing is that sales taxes are on below average in Connecticut (partly because there are no local sales taxes).

Connecticut Income Taxes

Connecticut Income Tax Range

Low: 3% (on up to $20,000 of taxable income for married joint filers and up to $10,000 for those filing individually)

High: 6.99% (on the amount over $1 million for married joint filers and over $500,000 for those filing individually)

Connecticut Taxation of Social Security Benefits

Social Security income is fully exempt for single taxpayers with federal adjusted gross income of less than $75,000 and for married taxpayers filing jointly with federal AGI of less than $100,000. Taxpayers who exceed these thresholds can still deduct 75% of their federally taxable Social Security benefits on their Connecticut tax return.

Connecticut Tax Breaks for Other Retirement Income

Beginning in 2022, income from a pension or annuity is exempt for joint filers with less than $100,000 of federal adjusted gross income and other taxpayers with less than $75,000 of federal AGI (42% was exempt for the 2021 tax year).

Beginning in 2023, 25% of any distribution from a traditional IRA is exempt for joint filers with less than $100,000 of federal adjusted gross income and other taxpayers with less than $75,000 of federal AGI. The exemption percentage is increased to 50% in 2024, 75% in 2025, and 100% in 2026 and thereafter.

To the extent it's included in federal AGI, 50% of income from the Connecticut teachers' retirement system is exempt. Teachers can claim this tax break or the general pension exemption, but not both.

Military pensions and Railroad Retirement benefits are fully exempt.

Connecticut Sales Tax

The state taxes most items at 6.35%, and localities are not allowed to add to that.

  • Groceries: Exempt
  • Clothing: Taxable (6.35% for items under $1,000; 7.75% for items over $1,000; items costing less than $50 are fully exempt)
  • Motor Vehicles: Taxable (6.35% for vehicles under $50,000; 7.75% for vehicles over $50,000; 4.5% for non-resident military personnel on full-time active duty in the state)
  • Prescription Drugs: Exempt

Connecticut Real Property Taxes

In Connecticut, the median property tax rate is $1,957 per $100,000 of assessed home value.

Connecticut Property Tax Breaks for Retirees

Connecticut offers property tax credits to homeowners who are at least 65 years old and meet income restrictions. For the 2022 tax relief program, income ceilings are $46,400 in 2021 for married couples (with a maximum benefit of $1,250) and $38,100 in 2021 for singles (with a maximum benefit of $1,000). Renters under those income ceilings may qualify for a rebate. Municipalities may provide additional tax relief for seniors.

Connecticut Motor Fuel Taxes

Gasoline: 35.75¢ per gallon.

Diesel: 40.1¢ per gallon (49.2¢ per gallon effective July 1, 2022).

Connecticut Sin Taxes

Cigarettes and little cigars: $4.35 per pack

Snuff: $3 per ounce

Chewing and smoking tobacco: 50% of the wholesale price

Cigars: 50% of the wholesale price ($0.50 cap)

Vapor products: $0.40 per ml for closed systems, 10% of wholesale price for other vapor products.

Beer: $0.23 per gallon ($0.19 per gallon effective July 1, 2023)

Wine: $0.79 per gallon ($1.98 for sparkling wine)

Liquor: $5.95 per gallon

Marijuana: State retail tax at rate of $0.00625 per milligram of total THC for cannabis plant material, $0.0275 per milligram of total THC for cannabis edible products, and $0.009 per milligram of total THC for other cannabis products; municipal tax of 3%; general state sales tax

Connecticut Estate and Inheritance Taxes

Connecticut has an estate tax with a $12.92 million exemption for 2023 (i.e., the same amount as the federal estate tax exemption). The tax due is limited to $15 million.

Connecticut is the only state with a gift tax on assets you give away while you're alive. If you made taxable gifts during the year, state law requires that you file a Connecticut estate and gift tax return to identify such gifts. However, taxes are due in 2023 only when the aggregate value of gifts made since 2005 exceeds $12.92 million.

The state imposes estate and gift taxes at a flat 12% rate.

Rocky Mengle
Senior Tax Editor,

Rocky was a Senior Tax Editor for Kiplinger from October 2018 to January 2023. He has more than 20 years of experience covering federal and state tax developments. Before coming to Kiplinger, he worked for Wolters Kluwer Tax & Accounting and Kleinrock Publishing, where he provided breaking news and guidance for CPAs, tax attorneys, and other tax professionals. He has also been quoted as an expert by USA Today, Forbes, U.S. News & World Report, Reuters, Accounting Today, and other media outlets. Rocky has a law degree from the University of Connecticut and a B.A. in History from Salisbury University.