How much Connecticut tax should be withheld from each paycheck?

Connecticut uses 2% to 6.99% progressive income tax rates in the current TaxGuide Pro calculator data. Estimate Connecticut state withholding per paycheck for 2025, 2026, or 2027 planning by entering wages, pay frequency, and filing status. The calculator annualizes your income, applies Connecticut rates, and returns an estimated per-paycheck withholding amount.

Estimates use a 5.5% planning rate and may differ from payroll withholding formulas.

Connecticut paycheck withholding calculator

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Connecticut paycheck withholding calculator
Connecticut tax calculator 2026
Connecticut income tax rate 2026
Connecticut state tax refund status

Good fit when

Connecticut residents checking 2026 tax planning
Part-year or nonresident Connecticut filers
Comparing state tax, withholding, refund, and deduction scenarios

Have ready

Filing status and residency
State taxable income or benefit amount
Withholding, payments, deductions, credits, or filing date as relevant

Result you get

State-specific estimate, next-step notes, and official Connecticut source links.

State calculator hub State income tax calculator Best state tax calculators

Connecticut state facts

Rate rules and worked examples

Examples use 2026 taxable income before credits or residency allocation. Use the official state source below to verify final filing guidance.

Income tax rule

Connecticut uses 2% to 6.99% progressive income tax rates in the current TaxGuide Pro calculator data.

Single example

$60,000 single taxable income -> about $2,550 state income tax before credits.

Joint example

$120,000 married filing jointly taxable income -> about $5,100 state income tax before credits.

Deductions and exemptions

Connecticut deductions and exemptions depend on filing status and state instructions; verify the current return before filing.

Credits to review

Review dependent, household, income-based, and other Connecticut credits in the state credit finder, then confirm eligibility in official instructions.

Filing deadline

For a 2026 return filed in 2027, confirm the due date in published Connecticut instructions. State deadlines and disaster relief can differ from federal dates.

Refund processing

Connecticut does not guarantee one refund date for every return. E-filed, accurate returns with direct deposit are generally processed faster than paper or reviewed returns.

Official verification: Connecticut Department of Revenue Services.

How this calculation works

Annualizes wages based on pay frequency.
Applies Connecticut withholding rules using filing status inputs.
Converts the annual estimate back to a per-paycheck amount.

Common mistakes and caveats

Employer withholding settings can vary by payroll system.
Bonus or supplemental wages may be withheld differently.
Local taxes are not included.

FAQ

Does this match the exact Connecticut withholding tables?

It is an estimate based on Connecticut guidance and may differ slightly from payroll systems.

What is the Connecticut income tax rate for 2026?

Connecticut uses 2% to 6.99% progressive income tax rates in the current TaxGuide Pro calculator data. The examples on this page use taxable income before credits, so final results can change when state deductions, credits, or residency allocation apply.

Does Connecticut tax retirement income?

Connecticut retirement income treatment can depend on the income type, age, and state exclusions. Use the Connecticut retirement tax checker for a state-specific review.

Does Connecticut tax Social Security benefits?

Connecticut Social Security treatment can differ from federal treatment. Use the Connecticut Social Security checker and verify the result with the official state source.

When will I get my Connecticut tax refund?

Connecticut refund timing depends on e-file versus paper filing, direct deposit, return accuracy, identity verification, and seasonal volume. Use the Connecticut refund timeline estimator and the official refund-status source for live updates.

Where should I verify my Connecticut tax result?

Use the official Connecticut revenue or tax agency sources linked in the sources section. TaxGuide Pro is an educational estimator and does not replace a filed state return or agency notice.

Last updated & sources

Last updated August 20, 2026.

TaxGuide Pro provides free state and federal tax calculators for individuals, freelancers, and small businesses.