Payroll & Tax

Connecticut Paycheck Calculator 2025-26

Updated April 2025

2025-26 CT & Federal tax rates

Reviewed by a CPA

Enter Your Pay DetailsFree - No signup

Annual Gross Salary

Pay Frequency

Filing Status

Deductions & Adjustments

401(k) Contribution

% / yr

Health Insurance (pre-tax/mo)

Other Pre-tax Deductions (mo)

How the Connecticut Paycheck Calculator Works

This calculator estimates your Connecticut take-home pay for the 2025-26 tax year. It applies federal income tax using 2025 IRS brackets, Connecticut progressive state income tax with a personal exemption, FICA taxes, and any pre-tax deductions you enter.

Connecticut State Income Tax (2025-26)

Connecticut has seven progressive tax brackets ranging from 2% to 6.99%. Unlike most states, Connecticut uses a personal exemption ($15,000 for single filers) rather than a standard deduction to reduce taxable income before applying the brackets.

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Personal exemption, not standard deduction: Connecticut uses a personal exemption of $15,000 (single) or $24,000 (married) to reduce taxable income. This is smaller than the federal standard deduction, which means Connecticut income taxes apply to more of your gross income than federal taxes do at the same income level.

Connecticut Net Pay = Gross Pay
  - Federal Income Tax (progressive brackets)
  - Connecticut State Tax (2% to 6.99%, 7 brackets)
  - Social Security (6.2%, up to $176,100 wage base)
  - Medicare (1.45% + 0.9% above $200K)
  - Pre-tax deductions (401k, health insurance)

Connecticut Tax Brackets (Single, 2025)

2% on the first $10,000 of taxable income
4.5% on income from $10,001 to $50,000
5.5% on income from $50,001 to $100,000
6% on income from $100,001 to $200,000
6.5% on income from $200,001 to $250,000
6.9% on income from $250,001 to $500,000
6.99% on all income above $500,000

Example Calculation

Suppose you earn $65,000 per year, file as single, and have no pre-tax deductions.

Gross annual pay$65,000
Federal taxable ($65,000 - $14,600 standard deduction)$50,400
Federal income tax (10% + 12% brackets)-$5,908
CT taxable ($65,000 - $15,000 personal exemption)$50,000
CT state tax ($10,000 at 2% + $40,000 at 4.5%)-$2,000
Social Security ($65,000 x 6.2%)-$4,030
Medicare ($65,000 x 1.45%)-$943
Estimated net annual take-home$52,119
Monthly take-home~$4,343

What Does the Result Mean?

In this example, the effective total tax rate is about 19.8% of gross pay. The Connecticut state tax of $2,000 represents only 3.08% of gross pay at this income level - well below the top marginal rate of 6.99% - because most income falls in the lower 2% and 4.5% brackets after the personal exemption.

Compared to neighboring New Jersey, Connecticut residents at this income level often pay similar or slightly lower state tax. Compared to New York City residents who pay both state and city income taxes, Connecticut residents save $1,500-$3,000 per year at this income level.

Disclaimer: This calculator provides estimates for informational purposes only. Actual results may vary based on employer-specific withholding or deductions not entered here. Consult a tax professional for exact figures.

Common Mistakes to Avoid

Confusing the personal exemption with the standard deduction

Connecticut uses a personal exemption ($15,000 single, $24,000 married) rather than a standard deduction. It is smaller than the federal standard deduction, meaning more income is taxable in Connecticut than at the federal level for the same gross pay.

Entering monthly salary instead of annual

The salary field expects your full annual gross. If you enter your monthly pay, results will be about 92% too low. Multiply your monthly pay by 12 before entering.

Assuming Connecticut tax is high for middle incomes

The 6.99% top rate only applies to income above $500,000. Most middle-income single filers in Connecticut pay an effective state rate of 3%-4%. The low 2% bracket on the first $10,000 of taxable income helps moderate the overall burden.

Using the wrong filing status

Married filing jointly nearly doubles the Connecticut personal exemption ($24,000 vs $15,000 for single) and also uses wider tax brackets. Using the wrong status can meaningfully overstate or understate your Connecticut tax.

Not accounting for New York source income

Connecticut residents who earn wages from New York employers may owe both Connecticut and New York taxes. Connecticut provides a credit for taxes paid to other states, but the interaction is complex. Residents working in New York should consult a tax professional for accurate estimates.

Frequently Asked Questions

Connecticut has seven tax brackets for 2025. Single filers pay 2% on income up to $10,000, then 4.5% up to $50,000, 5.5% up to $100,000, 6% up to $200,000, 6.5% up to $250,000, 6.9% up to $500,000, and 6.99% on income above $500,000. Married filing jointly brackets are roughly double those thresholds. Connecticut also uses a personal exemption ($15,000 single, $24,000 married) rather than a standard deduction.

More Payroll Calculators

New York Paycheck

Massachusetts Paycheck

New Jersey Paycheck

Pennsylvania Paycheck

Maryland Paycheck

Self-Employment Tax

Time and a Half

Sources & References

IRS Revenue Procedure 2024-61 and Publication 15-T (2025)

Source for 2025 federal income tax brackets, standard deduction amounts, and withholding tables.

Connecticut Department of Revenue Services - 2025 CT-1040 Instructions

Source for Connecticut's seven tax brackets, personal exemption amounts ($15,000 single / $24,000 married), and 2025 withholding tables.

Social Security Administration - 2025 COLA and Wage Base

Source for the $176,100 Social Security wage base and 6.2% employee FICA rate for 2025.

Hassaan Rasheed

Developer and Researcher, CalculatorFlux

Researches and verifies the formulas, methodology, and source data behind each calculator on CalculatorFlux. All tools are built and checked against the cited references before publication.

Last updated: May 2026

Connecticut Tax Rates 2025-26

Tax	Rate
CT Top Rate	6.99%
CT Bracket Range	2% to 6.99%
CT Personal Exemption	$15,000 (single)
CT Personal Exemption	$24,000 (married)
Social Security	6.20%
Medicare	1.45%
Federal (10% bracket)	10%
SS Wage Base 2025	$176,100
401(k) Limit 2025	$23,500

Other State Calculators

Pro Tip

Connecticut exempts 100% of Social Security benefits from state tax if your AGI is below $75,000 (single) or $100,000 (married). Connecticut residents who commute to New York can also claim a credit on their Connecticut return for taxes paid to New York, which prevents double taxation on the same income.

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