How does Connecticut’s tax code compare? Connecticut has a graduated state individual income tax, with rates ranging from 2.00 percent to 6.99 percent. Connecticut has a 7.5 percent corporate income tax rate. Connecticut also has a 6.35 percent state sales tax rate and does not have local sales taxes. Connecticut has a 1.78 percent effective property tax rate on owner-occupied housing value.
Connecticut has an estate tax. Connecticut has a 25 cents per gallon gas tax rate and a $4.35 cigarette excise tax rate. The State of Connecticut collects $9,469 in state and local tax collections per capita. Connecticut has $14,903 in state and local debt per capita and has a 58 percent funded ratio of public pension plans. Connecticut’s tax system ranks 47th overall on the 2025 State Tax Competitiveness Index.
Each state’s tax code is a multifaceted system with many moving parts, and Connecticut is no exception. The first step towards understanding Connecticut’s tax code is knowing the basics. How does Connecticut collect tax revenue? Click the tabs below to learn more! You can also explore our state tax maps, which are compiled from our annual publication, Facts & Figures 2024: 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.
115 min read
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
Tax burdens rose across the country as pandemic-era economic changes caused taxable income, activities, and property values to rise faster than net national product. Tax burdens in 2020, 2021, and 2022 are all higher than in any other year since 1978.
24 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?
8 min read
Graduated corporate rates are inequitable—that is, the size of a corporation bears no necessary relation to the income levels of the owners.
7 min read
Retail sales taxes are an essential part of most states’ revenue toolkits, responsible for 32 percent of state tax collections and 13 percent of local tax collections (24 percent of combined collections).
9 min read
While many factors influence business location and investment decisions, sales taxes are something within lawmakers’ control that can have immediate impacts.
12 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.
6 min read
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.
36 min read
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).
4 min read
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