Connecticut Paycheck Calculator

Use the Connecticut Paycheck Calculator to estimate net pay after federal withholding, Social Security, Medicare, Connecticut income tax withholding and other payroll deductions. Connecticut does not use one flat payroll withholding percentage, so filing information and the employee's CT-W4 withholding code can materially change the result.

For 2026, Connecticut uses withholding calculation rules and tables that range from an initial 2% bracket through a 6.99% top marginal rate. The state's official 2026 withholding rules are unchanged from 2025.

Source: Connecticut 2026 Withholding Rules

How to Use the Connecticut Paycheck Calculator

Enter gross wages and payroll information for the period to estimate Connecticut take-home pay.

• Gross wages
• Pay frequency
• Federal filing information
• Form CT-W4 withholding code
• Additional Connecticut withholding
• Reduced withholding, when applicable
• Pre-tax deductions
• Post-tax deductions
• Overtime, commissions or bonuses
• Year-to-date wages

Unlike a simple flat-rate state calculation, Connecticut withholding requires several steps based on annualized wages and employee-specific information.

What Taxes Are Deducted From a Connecticut Paycheck?

A Connecticut paycheck can include federal income tax, Social Security, Medicare and Connecticut income tax withholding.

Other payroll deductions can also reduce take-home pay.

Federal Income Tax Withholding

Federal income tax withholding depends on the employee's taxable wages, payroll frequency and Form W-4 information.

The IRS updated Publication 15-T for 2026. Employers use its current withholding methods when calculating federal income tax from wages.

Source: IRS Publication 15-T

Social Security and Medicare

For employees subject to FICA in 2026:

The employer generally matches the regular Social Security and Medicare portions but does not match Additional Medicare Tax.

Source: Social Security Wage Base

Connecticut State Income Tax Withholding

Connecticut uses a progressive withholding calculation rather than one percentage applied to all wages.

The 2026 initial tax calculation includes rates of:

• 2.00%
• 4.50%
• 5.50%
• 6.00%
• 6.50%
• 6.90%
• 6.99%

The income ranges where these rates apply vary according to the employee's Connecticut withholding code.

This is why two employees with equal gross pay may have different Connecticut withholding.

How Connecticut Paycheck Withholding Works

Connecticut's official withholding calculation starts by annualizing wages and identifying the employee's withholding code from Form CT-W4.

1. Determine wages for the pay period.

2. Determine annual pay periods.

3. Annualize salary.

4. Identify the CT-W4 withholding code.

5. Determine the applicable personal exemption.

6. Calculate annualized taxable income.

7. Calculate initial Connecticut tax.

8. Apply the 2% tax rate phase-out add-back when applicable.

9. Apply tax recapture when applicable.

10. Calculate the preliminary withholding amount.

11. Determine the applicable personal tax credit.

12. Apply that credit.

13. Convert annual withholding back to the pay period.

14. Add requested additional withholding.

15. Apply permitted reduced withholding.

16. Determine final Connecticut withholding for the paycheck.

Connecticut specifically states that employers must use either the withholding calculation rules or the withholding tables. There is no general percentage method for determining Connecticut wage withholding.

Connecticut Withholding Codes and Form CT-W4

Form CT-W4 provides information needed to determine Connecticut withholding.

The state's calculation rules use withholding codes A, B, C, D or F. The applicable code influences personal exemptions, initial tax calculations and other parts of the withholding process.

This makes accurate CT-W4 information especially important when estimating Connecticut take-home pay.

Employees whose circumstances change may need to review their withholding elections rather than assuming the same amount will continue indefinitely.

Connecticut Hourly Paycheck Calculator

For hourly employees, calculate regular gross wages first.

Hourly Rate × Hours Worked = Regular Gross Pay

Include applicable taxable overtime, commission or other compensation when determining payroll wages.

After taxable wages are established, the calculator can estimate federal payroll taxes and apply the Connecticut withholding process.

A change in working hours can affect more than gross pay because annualized Connecticut wages may also move into a different part of the state's withholding calculation.

Connecticut Salary Paycheck Calculator

For a salaried employee, determine gross pay by dividing annual compensation by payroll frequency.

• Weekly: annual salary ÷ 52
• Biweekly: annual salary ÷ 26
• Semimonthly: annual salary ÷ 24
• Monthly: annual salary ÷ 12

Connecticut's withholding calculation also annualizes pay when determining state tax withholding. The pay frequency entered in a calculator therefore needs to match the employee's real payroll schedule.

Gross Pay vs. Net Pay in Connecticut

Gross pay is an employee's earnings before withholding and payroll deductions. Net pay is what remains afterward.

Gross Earnings - Payroll Taxes - Other Deductions = Net Pay

A Connecticut employee may see deductions for federal income tax, Connecticut income tax, Social Security and Medicare in addition to benefits or other payroll deductions.

The exact taxable amount can also differ from gross earnings when eligible pre-tax payroll deductions apply.

Connecticut Residents Working in Another State

Connecticut residents are generally subject to Connecticut income tax on their income even when they work outside the state, but withholding can become more complex when another state also taxes the wages.

Connecticut DRS explains that when a resident works in another state that imposes income tax, withholding for the work state can affect how much Connecticut tax the employer must withhold. Credits for qualifying taxes paid to another jurisdiction can also affect the employee's final Connecticut return.

Source: Connecticut DRS Withholding Tax Information

A basic paycheck calculator may not capture every multi-state payroll situation.

Nonresidents Working in Connecticut

A nonresident's wages may be subject to Connecticut withholding when the wages are paid for services performed in Connecticut.

Connecticut also has specific sourcing rules for employees who perform services partly inside and partly outside the state. Certain remote-work situations can require additional analysis.

Employees with multi-state work arrangements should therefore treat a standard paycheck result as an estimate.

Why Your Connecticut Take-Home Pay May Differ

Actual net pay may differ from a calculator estimate because Connecticut withholding can be affected by several employee-specific factors.

• CT-W4 withholding code
• Personal exemption amounts
• Personal tax credits
• Tax recapture
• The 2% rate phase-out
• Additional withholding
• Reduced withholding
• Payroll frequency
• Supplemental compensation
• Federal W-4 information
• Pre-tax deductions

The Connecticut DRS publishes dedicated 2026 withholding tables and calculation rules for employers.

Source: Connecticut Current-Year Withholding Forms

Paycheck Estimate vs. Pay Stub

A Connecticut paycheck calculator estimates what may be withheld from a future or current paycheck. A pay stub records the actual payroll transaction.

Once accurate payroll figures are available, Online PayStub can help organize employer information, employee details, gross earnings, taxes, deductions and net pay into a professional pay stub for legitimate payroll and recordkeeping purposes.

Calculator estimates should not be presented as actual payments or payroll history when those payments did not occur.

Important Tax Disclaimer

This calculator is intended to provide an estimate for general payroll planning and informational purposes.

It does not replace official Connecticut DRS withholding instructions, IRS guidance or professional tax advice. Actual results can vary based on employee elections, residency, worker classification, taxable benefits, supplemental wages and other individual circumstances.