Tax Bracket Calculator · Connecticut

Connecticut Tax Brackets 2026

Your income faces two sets of brackets: the 2026 federal brackets and Connecticut's state brackets. This page shows both, plus your real combined rate.

Data verified November 10, 2026 against official sources (see below).

Filing Status

Annual Gross Income

Federal tax

$7,670

22.0% marginal · 10.2% effective

Connecticut tax

$3,375

5.5% marginal · 4.5% effective

Combined

$11,045

14.7% of gross income

Your income through the Connecticut 2026 brackets
Connecticut rate	Income in bracket	Tax in bracket
2.0%	$10,000	$200
4.5%	$40,000	$1,800
5.5%	$25,000	$1,375

Federal and Connecticut tax at common incomes

Single filer, 2026 standard deduction, no credits. Your combined marginal rate is the federal bracket plus the Connecticut bracket on the same dollar.

Federal and Connecticut income tax by income, single filer, 2026
Gross income	Federal tax	Connecticut tax	Combined	Effective rate
$40,000	$2,620	$1,550	$4,170	10.4%
$60,000	$5,020	$2,550	$7,570	12.6%
$75,000	$7,670	$3,375	$11,045	14.7%
$100,000	$13,170	$4,750	$17,920	17.9%
$150,000	$24,734	$7,750	$32,484	21.7%
$200,000	$36,734	$10,750	$47,484	23.7%

Connecticut 2026 brackets (single filer)

Connecticut taxable income after the $0 state standard deduction (single) falls into these brackets:

Connecticut 2026 income tax brackets, single filer
Rate	Taxable income from	To
2.00%	$0	$10,000
4.50%	$10,000	$50,000
5.50%	$50,000	$100,000
6.00%	$100,000	$200,000
6.50%	$200,000	$250,000
6.90%	$250,000	$500,000
6.99%	$500,000	and up

Compare other states

Sources and how we calculate

Published by Financial Calculator. Editorial policy. Publisher attribution, not a claim of professional review.

Connecticut brackets and standard deduction come from the Connecticut revenue department's published 2026 figures (rolling verification recorded in our data files). City and county income taxes are not included.

Figures last checked on November 10, 2026. Read our calculation methodology for data sources and update schedule.

How We Calculate & Keep This Accurate

We subtract the 2026 standard deduction from gross income, walk the federal brackets, then apply the Connecticutstate standard deduction and brackets to the same income. The combined marginal rate adds both top rates because both taxes hit the same dollar. Credits, pre-tax deductions, and local taxes are not included; the paycheck calculator models those.

Published by Financial Calculator. Editorial policy. No named professional review is implied.

Primary Sources

Data & Freshness

Figures reflect 2026 tax-year data.

Last updated November 10, 2026 · Maintained by the Financial Calculator editorial team.

Read our calculation methodology.

Connecticut tax bracket FAQs

Common questions about Connecticut and federal income tax brackets in 2026.

What is the Connecticut income tax rate in 2026?

Connecticut has progressive income tax brackets in 2026, topping out at 6.99%, on top of the federal brackets.

How much tax do I pay on $75,000 in Connecticut?

A single filer earning $75,000 in Connecticut pays about $7,670 in federal income tax and $3,375 in Connecticut tax — $11,045 combined, an effective rate of 14.7% (standard deduction, no credits).

What is the difference between marginal and effective tax rate?

Your marginal rate is the rate on your last dollar of income; your effective rate is the average across every dollar. Only income inside a bracket is taxed at that bracket's rate, so moving into a higher bracket never makes your whole income get taxed harder.

Does Connecticut have local or city income taxes?

This page shows the Connecticut state income tax only. Some cities and counties charge their own income taxes; check our city tax pages or your local revenue department.