Connecticut has a graduated state individual income tax, with rates ranging from 2.00 percent to 6.99 percent. Connecticut has a 7.50 percent corporate income tax rate, a 6.35 percent state sales tax rate, and an average combined state and local sales tax rate of 6.35 percent. The Connecticut corporate income tax includes a 10 percent surtax that effectively results in a top rate of 8.25 percent for businesses with $100 million or more in annual income. Connecticut has a 1.54 percent effective property tax rate on owner-occupied housing value. Connecticut has an estate tax. Connecticut’s gas tax is 25 cents per gallon, but the state additionally levies an 8.1 percent petroleum gross earnings tax. Connecticut’s cigarette excise tax is $4.35 per pack of 20 cigarettes.
Connecticut raises tax revenue primarily through property taxes (35.3 percent of total state and local tax revenue), individual income taxes (26.0 percent), and general sales taxes (16.3 percent). Connecticut collects $9,388 in state and local tax collections per capita, carries $12,052 in state and local debt per capita, and has a 66 percent funded ratio of public pension plans. Connecticut’s tax system ranks 47th overall on the 2026 State Tax Competitiveness Index.
Each state’s tax code is a multifaceted system with many moving parts, and Connecticut is no exception. Use the tabs below to compare Connecticut taxes with other states and to see how Connecticut raises tax revenue. You can also browse our tax maps, which are compiled from our annual publication, Facts & Figures 2026: How Does Your State Compare?
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The State Tax Competitiveness Index enables policymakers, taxpayers, and business leaders to gauge how their states’ tax systems compare. While there are many ways to show how much state governments collect in taxes, the Index evaluates how well states structure their tax systems and provides a road map for improvement.
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Facts & Figures serves as a one-stop state tax data resource that compares all 50 states on over 40 measures of tax rates, collections, burdens, and more.
2 min read
Individual income taxes are a major source of state government revenue, accounting for more than a third of state tax collections. How do income taxes compare in your state?
9 min read
Retail sales taxes are an essential part of most states’ revenue toolkits, responsible for nearly a quarter of combined state and local tax collections.
18 min read
Forty-four states levy a corporate income tax, with top rates ranging from a 2 percent flat rate in North Carolina to an 11.5 percent top marginal rate in New Jersey. Four states—Georgia, Nebraska, North Carolina, and Pennsylvania—reduced their corporate income tax rates effective January 1, 2026.
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Property taxes are the primary tool for financing local governments. While no taxpayers in high-tax jurisdictions will be celebrating their yearly payments, property taxes are largely rooted in the benefit principle of taxation: the people paying the property tax bills are most often the ones benefiting from the services.
9 min read
Twenty-six states and the District of Columbia had notable tax changes take effect on January 1, 2021. Because most states’ legislative sessions were cut short in 2020 due to the COVID-19 pandemic, fewer tax changes were adopted in 2020 than in a typical year.
24 min read
The coronavirus relief package represents the second-largest recovery legislation, behind only the CARES Act, for a combined total of more than $3 trillion in support.
8 min read
On Monday, members of the bipartisan Gang of Eight negotiating an end-of-year pandemic relief package announced that they had settled on language and had divided the package into two bills: a pandemic aid package and a $160 billion state and local support package.
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A typical American household with four phones on a “family share” wireless plan can expect to pay about $270 per year (or 22 percent of their cell phone bill) in taxes, fees, and surcharges.
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President Joe Biden’s tax plan would yield combined top marginal state and local rates in excess of 60 percent in three states: California, Hawaii, and New Jersey (also New York City).
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State tax revenue collections were down 5.5 percent in FY 2020, driven by a dismal final quarter (April through June) as states began to feel the impact of the COVID-19 pandemic. While these early losses are certainly not desirable, they are manageable and far better than many feared.
16 min read
Property tax burdens in Connecticut continue to increase even as property values decline, whereas other states—including neighboring Massachusetts and New York—have managed to keep the growth of property tax burdens in check.
42 min read
Nineteen states had notable tax changes take effect on July 1, 2020. Pandemic-shortened sessions contributed to less—and different—activity on the tax front than is seen in most years, and will likely yield an unusually active summer and autumn, with many legislatures considering new measures during special sessions.
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