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?
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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
Newer products like spirits-based hard seltzers and ready-to-drink cocktails have fueled growth, while also blurring the lines of a categorical tax system. The result has been a spirited competition throughout the alcohol industry for market share, including calls to reform tax policy.
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Gross receipts taxes impose costs on consumers, workers, and shareholders alike. Shifting from these economically damaging taxes can thus be a part of states’ plans for improving their tax codes in an increasingly competitive tax landscape.
7 min read
Gas tax revenues have decoupled from road expenses and have been unable to support road funding in recent years. As such, states nationwide are exploring ways to supplement or replace gas tax revenues.
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At the end of 2025, the individual tax provisions in the Tax Cuts and Jobs Act (TCJA) expire all at once. Without congressional action, most taxpayers will see a notable tax increase relative to current policy in 2026.
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States have generally tried to encourage capital investment. Throwback and throwout rules are an unfortunate example of penalizing it.
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One relatively easy but meaningful step policymakers can take to make future tax seasons less burdensome is to modernize their state’s nonresident income tax filing, withholding, and reciprocity laws.
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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.
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Savings and investment are critical activities, both for individuals’ and families’ financial security and for the health of the national economy as a whole. As such, policymakers should consider how they can help mitigate—rather than add to—tax codes’ biases against saving and investment.
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With state tax revenues receding from all-time highs, there’s been a great deal of handwringing about whether states can afford the tax cuts adopted over the past few years. Given that 27 states reduced the rate of a major tax between 2021 and 2023, is there reason for concern?
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Reforming economic nexus thresholds would not only be better for businesses but for states as well. It is more cost-effective for states to focus on—and simplify—compliance for a reasonable number of sellers than to impose rules that have low compliance and are costly to administer.
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