Connecticut paycheck guide
How Connecticut calculates income tax in 2026
For single filers, Connecticut taxes the first $10,000 of taxable income at 2%, income up to $50,000 at 4.5%, up to $100,000 at 5.5%, up to $200,000 at 6%, up to $250,000 at 6.5%, and up to $500,000 at 6.9%. Everything above $500,000 is taxed at 6.99%. Joint brackets are exactly twice as wide, so the 6.99% rate starts at $1,000,000 for a married couple.
Connecticut has no standard deduction. Single filers get a personal exemption of $15,000 at low incomes, but it phases out as income rises and is gone by $50,000. Above that point, all of your Connecticut adjusted gross income is taxable, which is why a $75,000 earner here pays tax on the full $75,000.
Three more adjustments from the Tax Calculation Schedule of Form CT-1040 are built into our single-filer figures: a personal tax credit that trims the bill at lower incomes, an add-back that removes the benefit of the 2% bracket as income rises, and a recapture that removes the benefit of the lower brackets for high earners. Our married-couple examples use the brackets alone, so a joint return can owe somewhat more than shown.
Worked example: a $75,000 salary in Connecticut
With no deduction or exemption left at this income, Connecticut taxable income is the full $75,000. The first $10,000 is taxed at 2% ($200), the next $40,000 at 4.5% ($1,800), and the last $25,000 at 5.5% ($1,375). On top of those bracket amounts comes the 2% bracket add-back, already at its full $250 at this income, bringing Connecticut tax to $3,625, or 4.83% of gross pay.
Federal tax is lighter on the same salary because of the $16,100 standard deduction: $58,900 is taxable, producing $7,670 across the 10%, 12%, and 22% brackets. Payroll withholding for Social Security is $4,650, with $1,088 more for Medicare. Your net pay lands at $57,967 for the year, $4,831 in a typical month. For weekly or semimonthly figures, open the Connecticut $75,000 salary page.
The exemption phase-out makes the lower-middle range expensive. A $30,000 earner still gets most of the exemption, plus part of the personal tax credit, and owes $383. At $50,000 the exemption is gone and the bill is $1,880, so $20,000 of extra pay adds $1,497 of Connecticut tax. At $150,000 the add-back and the start of the recapture add $475 to the bracket tax, for a total of $8,225.
Form CT-W4 and its withholding codes
Connecticut employers withhold from Form CT-W4, which uses a letter code instead of allowances. A single filer expecting more than $15,000 of gross income chooses Code F. Married couples choose A, C, or D based on combined income and whether both spouses work, and Code D is also for anyone with significant income that has no withholding. Code E means no withholding is needed.
If you never hand in a CT-W4, your employer must withhold at the top 6.99% rate with no exemption, far more than the 4.83% effective rate a $75,000 earner actually owes. File the form when you start a job, and within ten days of a change in your filing status.
Married couples who both choose Code A can be under- or over-withheld, because the exemption and personal credit phase out on combined income. The state publication Is My Connecticut Withholding Correct? has tables for the extra or reduced amounts to enter on lines 2 and 3 of CT-W4.
New York commuters, remote work, and paid leave
Connecticut has no reciprocity with New York, Massachusetts, or Rhode Island. A Stamford or Greenwich resident who works in Manhattan pays New York State tax on wages earned there, then claims a credit on the Connecticut return for tax paid to New York. New York City's own income tax applies only to city residents, so a Connecticut commuter does not pay it.
Working from home in Connecticut does not automatically end New York's claim. Under New York's convenience-of-the-employer rule, days you work at home for your own convenience still count as New York days, and Connecticut's credit covers the overlap. Connecticut applies a similar rule to residents of states that have one when they work for a Connecticut employer.
Nonresidents who split work between Connecticut and another state file Form CT-W4NA so the employer withholds only on the Connecticut share. Connecticut towns do not tax income, but the state's paid leave program takes an employee contribution from most paychecks, and our estimate leaves that contribution out.
How Connecticut compares with its neighbors
At $75,000 a single Connecticut worker keeps $57,967, 49th among the 50 states and DC, and the state ranks 44th at $150,000. Once the add-back is counted, Connecticut takes more than both big neighbors at that salary: a Massachusetts worker under its flat 5% rate keeps $195 more, and a New York worker $172 more before any New York City tax. Rhode Island's three brackets leave a $75,000 earner $1,429 more than Connecticut.
The New York figure covers state tax only. New York City residents also pay the city's income tax, so a household choosing between Fairfield County and Manhattan is comparing more than state rates. See Connecticut vs New York and Connecticut vs Massachusetts for side-by-side numbers.
What to expect at your income
Earning under $50,000
Below $50,000 Connecticut's personal exemption shrinks with every raise, so state tax climbs faster than pay. A single filer earning $30,000 owes $383 and takes home $25,902, but at $50,000 the bill is $1,880 and take-home is $40,475, or $3,373 a month. Moving from $15 to $20 an hour full time adds $826 of Connecticut tax. The personal tax credit, already reflected in these figures, softens the bill at the low end and fades out as pay rises.
Earning $50,000 to $150,000
Above $50,000 the exemption is gone and Connecticut taxes every dollar of income. A single filer earning $100,000 pays $5,000, or 5% of salary, and takes home $74,180, about $6,182 a month. That includes the full 2% bracket add-back, which middle earners often overlook when they estimate from the brackets alone. Pre-tax 401(k) contributions save 5.5% in Connecticut tax plus 22% federal at that income, and lowering income can also shrink the add-back.
Earning over $150,000
Above $150,000 the marginal rate moves from 6% to 6.5% and later 6.9%. A single filer pays $8,225 at $150,000 and $15,400 at $250,000, a 6.16% effective rate, keeping $167,782, or $13,982 a month. Those figures include Connecticut's benefit recapture, which steadily takes back the value of the lower brackets as income climbs. If you commute to New York, your Connecticut credit for New York tax often leaves little Connecticut tax due, so check CT-W4 withholding with payroll.
Connecticut paycheck tips
Hand in Form CT-W4 on day one
Without it, your employer withholds at 6.99% with no exemption. Most single filers earning more than $15,000 should choose Code F.
Two-earner couples: check the supplemental tables
If you and your spouse both pick Code A, use the tables in Is My Connecticut Withholding Correct? to adjust lines 2 and 3 of CT-W4.
New York commuters: claim the credit
Pay New York tax on wages earned there, then claim Connecticut's credit for tax paid to another state so the same income is not fully taxed twice.
Split-state workers: file CT-W4NA
Nonresidents who work partly in Connecticut can file Form CT-W4NA so withholding covers only the Connecticut share of their pay.
Account for the paid leave deduction
Connecticut Paid Leave takes an employee contribution from most paychecks. It is not in this estimate, so subtract it from the take-home figures here.
Common mistakes
Assuming there is a standard deduction
Connecticut has none, and the single personal exemption is gone by $50,000. A $75,000 earner pays tax on all $75,000.
Expecting remote days to escape New York tax
New York's convenience rule can tax days you work at home in Connecticut for a New York employer. Connecticut's credit offsets the overlap, but New York still takes its share.
Ignoring the phase-outs on the return
The 2% bracket add-back and the benefit recapture raise Connecticut tax for many middle and high earners: $250 at $75,000 and $475 at $150,000 for a single filer. Simple bracket math misses both.
Moving to or from Connecticut
Moving to Connecticut
Moving to Connecticut costs money at $75,000 from every neighbor: $1,429 from Rhode Island, $195 from Massachusetts, and $172 from New York State. Leaving New York City does save its city income tax entirely, which can outweigh the state difference. Remember that Connecticut has no standard deduction, so budget on tax from the first dollar, give your employer a CT-W4 right away, and plan for the paid leave contribution on each paycheck.
Leaving Connecticut
Leaving Connecticut for a state with no income tax saves the $3,625 a $75,000 earner pays the state. Rhode Island saves $1,429, Massachusetts $195, and New York State $172 at that salary, though a move into New York City adds the city's own income tax. Connecticut taxes part-year residents on income earned while living there, so file Form CT-1040NR/PY for the year you move.