CONNECTICUT INCOME TAX · TAX YEAR 2026

2026 Connecticut income tax calculator

Estimate Connecticut income tax with the 2026 brackets, personal exemption, phase-outs and personal tax credit, plus federal income tax and take-home pay.

Your estimate

Enable JavaScript to calculate your estimate.

Connecticut take-home pay by salary

Take-home pay is wages minus Connecticut tax, federal income tax, Social Security and Medicare. Paychecks split the annual estimate evenly; your actual withholding depends on your W-4 and pay schedule.

Single filer, tax year 2026, wages only
Salary	State tax	Take-home pay	Every two weeks
$50,000	$1,800	$40,555	$1,560
$75,000	$3,475	$58,118	$2,235
$100,000	$4,975	$74,205	$2,854
$150,000	$8,225	$105,566	$4,060
$200,000	$11,250	$137,677	$5,295

Connecticut tax brackets for 2026

Connecticut taxes income at seven rates from 2% to 6.99%. The rates, exemptions and credit tables are set by statute rather than indexed, none changed for 2026, and the Department of Revenue Services says its 2026 withholding rules are unchanged from 2025. As income rises, Connecticut takes back the benefit of the 2% bracket and then of the other lower brackets, so high earners pay about their top rate on all of their income.

Single and married filing separately — tax year 2026
Rate	Taxable income
2%	Up to $10,000
4.5%	Over $10,000 through $50,000
5.5%	Over $50,000 through $100,000
6%	Over $100,000 through $200,000
6.5%	Over $200,000 through $250,000
6.9%	Over $250,000 through $500,000
6.99%	Over $500,000

Married filing jointly — tax year 2026
Rate	Taxable income
2%	Up to $20,000
4.5%	Over $20,000 through $100,000
5.5%	Over $100,000 through $200,000
6%	Over $200,000 through $400,000
6.5%	Over $400,000 through $500,000
6.9%	Over $500,000 through $1,000,000
6.99%	Over $1,000,000

Head of household — tax year 2026
Rate	Taxable income
2%	Up to $16,000
4.5%	Over $16,000 through $80,000
5.5%	Over $80,000 through $160,000
6%	Over $160,000 through $320,000
6.5%	Over $320,000 through $400,000
6.9%	Over $400,000 through $800,000
6.99%	Over $800,000

Connecticut income tax questions

Does Connecticut have a state income tax?

Yes. Connecticut taxes income at graduated rates from 2% to 6.99% for 2026. Higher earners lose the benefit of the lower brackets through a phase-out add-back and a recapture amount.

How much is Connecticut income tax on $100,000?

A single filer with $100,000 in wages and no other income, 401(k) contributions or dependents owes about $4,975.00 in Connecticut income tax for 2026, 4.98% of wages. After federal income tax, Social Security and Medicare, take-home pay is about $74,205.00, or $2,854.04 every two weeks.

What is the Connecticut standard deduction for 2026?

Connecticut has no standard deduction. Instead, each return gets one personal exemption: $15,000 for single filers, $24,000 for joint filers, $19,000 for heads of household and $12,000 for married couples filing separately. It shrinks by $1,000 for each $1,000 of AGI above $30,000, $48,000, $38,000 or $24,000, so a single filer loses it entirely above $44,000. Dependents add no exemptions. A personal tax credit worth 1% to 75% of the tax also applies at lower incomes.

Does Connecticut tax Social Security?

Partly. Connecticut exempts all taxable benefits when federal AGI is under $75,000 for single filers and married couples filing separately, or $100,000 for joint filers and heads of household, and taxes at most 25% of benefits above that.

Connecticut Social Security tax rules

Does Connecticut tax retirement income?

Partly. Connecticut subtracts all pension and 401(k) and IRA income when federal AGI is under $75,000 ($100,000 joint), a smaller share above that and none at $100,000 ($150,000 joint) or more, and it exempts military retirement pay.

Connecticut retirement income tax for 2026

How does Connecticut tax capital gains?

As ordinary income at Connecticut's regular rates. Gains also raise the AGI that drives the phase-out add-back, recapture and personal tax credit. Long-term gains get lower federal rates than this calculator applies to other income, so use the capital gains tax calculator for the federal side.

How this calculator works

Connecticut starts from federal AGI and has no standard deduction. The calculator subtracts the personal exemption for your filing status, which falls by $1,000 for each $1,000 (or part) of AGI over the threshold, and applies the rate schedule.

It then adds the 2% rate phase-out add-back, which moves the first bracket to the 4.5% rate in ten steps once AGI passes $56,500 for single filers, $100,500 for joint filers, $78,500 for heads of household or $50,250 for separate filers, and the benefit recapture, which starts at AGI of $105,000 for single and separate filers, $210,000 for joint filers and $168,000 for heads of household. Finally it subtracts the personal tax credit, a share of that tax from 75% down to 1% that ends above AGI of $64,500 for single filers, $100,500 for joint filers, $78,500 for heads of household and $52,500 for separate filers.

Worked example

A single filer with $75,000 in wages, no other income, no 401(k) contributions and no dependents has $75,000.00 of Connecticut taxable income and about $3,475.00 in Connecticut income tax, 4.63% of wages. After federal income tax of $7,670.00 and $5,737.50 in Social Security and Medicare, estimated take-home pay is $58,117.50, or $4,843.13 a month.

What this estimate excludes

The Connecticut earned income tax credit, the property tax credit, the Social Security and pension and annuity subtractions, other modifications and credits, and Connecticut Paid Leave contributions withheld from wages.

Connecticut sources

Federal tax uses IRS Revenue Procedure 2025-32. Read the full assumptions and sources.