Tip: Start from the federal W-4 calculator to pre-fill your pay and federal results here automatically.
Your Paycheck
Filing Status
Credits & Adjustments (Optional)
Leave blank if you're not sure — these only affect your federal withholding.
$2,200 per child under 17 · $500 per other dependent. Reduces your withholding.
Add extra to cover side income, freelance, or investment income each paycheck.
Non-wage income: freelance, dividends, rental income. Annual total.
If you itemize and deductions exceed the standard deduction. Annual total.
Full Connecticut bracket data coming soon.
The state effective rate shown is an estimate based on the top marginal rate. Federal calculation is fully accurate.
File your Connecticut return
Total withholding per paycheck
$327
$8,495 / year
Gross pay minus federal, FICA, and state taxes
Federal
Connecticut State Tax
Connecticut withholding uses DRS TPG-211: a personal exemption that phases out, graduated 2% to 6.99% rates, a 2% add-back and recapture at higher incomes, and a personal tax credit. Assumes withholding code F (single), C (married, spouse not employed) or B (head of household).
Ready to file?
File your federal and Connecticut state returns online with E-file.com.
W4Calc may receive compensation when you click links to tax software partners. This does not affect our recommendations.
Connecticut uses its own form: the CT-W4
Connecticut does not use the federal W-4 for state withholding. You give your employer Form CT-W4, the Employee's Withholding Certificate, and pick a one-letter withholding code from your expected filing status and income. Give your employer a new CT-W4 within ten days if your circumstances change, for example a bonus or a change in filing status.
If you do not give your employer a completed CT-W4, they must withhold at a flat 6.99% with no exemption, which usually takes out far more than you owe.
The withholding codes
Code F is for single filers with expected income over $15,000. Code B is for head of household with income over $19,000. Code C is for married filing jointly (or a qualifying surviving spouse) when the spouse is not employed and income is over $24,000. Code A is for married filing jointly when the spouse is employed and combined income is $24,000 to $100,500, and for married filing separately with income over $12,000. Code D has no personal exemption and is for people with significant non-wage income, nonresidents with substantial other income, and couples with two jobs and over $100,500 combined. Code E means no withholding: expected income below the threshold for your status, a nonresident with no Connecticut tax, or the Military Spouses Residency Relief Act exemption.
If you choose Code E you must renew it by February 15 each year, or the employer begins withholding at 6.99% on February 16.
How Connecticut calculates withholding for 2026
Employers annualize your pay, subtract a personal exemption from Table A that phases out as income rises (up to $15,000 for code F, $19,000 for B and $24,000 for C), and tax the rest with graduated rates from 2% to 6.99%. They then add a 2% rate phase-out add-back and, at higher incomes, a tax recapture amount, and finally multiply by one minus a personal tax credit percentage that falls from 75% at low incomes to zero. Connecticut does not publish a simple percentage method, so employers use these rules or the DRS tables.
For example, a single filer (code F) earning $60,000 has about $2,318 of Connecticut income tax withheld over the year: $2,550 of tax plus a $25 add-back, less a 10% personal tax credit. The 2026 rules and tables are unchanged from 2025.
Nonresidents, military spouses and bonuses
Nonresidents who work partly in Connecticut are taxed only on the Connecticut part of their pay; employers may use Form CT-W4NA to allocate it. Military spouses claiming the MSRRA exemption give their employer a copy of the service member's Leave and Earnings Statement and a military dependent ID, and check the MSRRA box with their state of legal residence.
When a bonus is paid separately, the employer adds it to the last regular wages, figures the tax on the total, and withholds the difference from the bonus. Connecticut has no city or county income tax.
Connecticut W-4 FAQ
What withholding code should I use on the CT-W4?+
Single with income over $15,000: F. Head of household over $19,000: B. Married filing jointly with a spouse who is not employed and income over $24,000: C. Married filing jointly with an employed spouse and combined income up to $100,500: A. Use D if you have significant non-wage income or two jobs at higher income, and E only if you expect little or no Connecticut tax.
What is Connecticut's income tax rate for 2026?+
Rates are graduated from 2% to 6.99%. For a single filer the 2% rate applies to the first $10,000 of taxable income, 4.5% to $50,000, 5.5% to $100,000, 6% to $200,000, 6.5% to $250,000, 6.9% to $500,000, and 6.99% above that.
What happens if I do not file a CT-W4?+
Your employer must withhold Connecticut income tax at a flat 6.99% with no allowance for exemption.
Does Connecticut use the federal W-4?+
No. It uses the CT-W4 and letter codes. The federal W-4 controls federal withholding only.
Does Connecticut have local income tax?+
No. Connecticut has no city or county income tax on wages.
Start with your federal W-4
Your Connecticut withholding follows your pay, but your W-4 is federal. Get the exact lines to fill in.
Open the W-4 Calculator →