Connecticut Income Tax Brackets 2026
What are the Connecticut income tax brackets for 2026?
Connecticut uses 7 graduated brackets for 2026, from 2% on the first dollars of taxable income up to a top rate of 6.99%. After the state's standard deduction of $0 single ($0 joint), a single filer on $75,000 pays $2,550 of Connecticut income tax.
Connecticut taxes income through 7 graduated brackets in 2026, topping out at 6.99%. The first bracket covers taxable income up to $10,000, and the top rate does not bite until taxable income passes $500,000, which is why the worked example below matters more than the headline rate.
Updated October 29, 2026
Connecticut brackets for single filers, 2026
Rates apply to Connecticut taxable income: gross pay minus the standard deduction and any personal exemption. In Connecticut the schedule fills from the bottom up: the first $10,000 of taxable income pays 2%, and only the income above each threshold pays the next rate up.
| Taxable income (single) | Rate |
|---|---|
| $0 to $10,000 | 2% |
| $10,001 to $50,000 | 4.5% |
| $50,001 to $100,000 | 5.5% |
| $100,001 to $200,000 | 6% |
| $200,001 to $250,000 | 6.5% |
| $250,001 to $500,000 | 6.9% |
| $500,001 and up | 6.99% |
Connecticut brackets for married filing jointly, 2026
| Taxable income (joint) | Rate |
|---|---|
| $0 to $20,000 | 2% |
| $20,001 to $100,000 | 4.5% |
| $100,001 to $200,000 | 5.5% |
| $200,001 to $400,000 | 6% |
| $400,001 to $500,000 | 6.5% |
| $500,001 to $1,000,000 | 6.9% |
| $1,000,001 and up | 6.99% |
Standard deduction and exemption in Connecticut
The 2026 standard deduction is $0 for single filers and $0 for married filing jointly. Connecticut also allows a personal exemption of $15,000 for single filers and $24,000 for joint filers, which comes off taxable income alongside the standard deduction. In Connecticut, that means the first $15,000 of a single filer's pay is taxed at zero before the schedule even starts.
Worked example: the brackets on a $75,000 salary
A single filer earning $75,000 in Connecticut first removes the standard deduction and personal exemption, leaving $60,000 of taxable income. Each bracket then takes its slice:
| Bracket range | Income in bracket | Rate | Tax |
|---|---|---|---|
| $0 to $10,000 | $10,000 | 2% | $200 |
| $10,001 to $50,000 | $40,000 | 4.5% | $1,800 |
| $50,001 to $100,000 | $10,000 | 5.5% | $550 |
Total Connecticut income tax: $2,550, an effective rate of 3.40% of gross pay. The marginal rate, the rate on the next dollar Connecticut taxes, is 5.5%; a raise that crosses into that bracket pays 5.5% only on the dollars above the line, never on the whole salary.
Connecticut income tax on common salaries (single filer)
| Gross salary | Connecticut income tax | Effective rate | Marginal rate |
|---|---|---|---|
| $40,000 | $875 | 2.19% | 4.5% |
| $50,000 | $1,325 | 2.65% | 4.5% |
| $75,000 | $2,550 | 3.40% | 5.5% |
| $100,000 | $3,925 | 3.92% | 5.5% |
| $150,000 | $6,850 | 4.57% | 6% |
How Connecticut compares with other states
How Connecticut compares: its top rate of 6.99% ranks 12th highest among the 42 taxing jurisdictions for 2026, and the $2,550 owed on a $75,000 salary ranks 29th highest, between Missouri ($2,588) and Kentucky ($2,507).
The shape of the schedule matters as much as the rates. Connecticut's top rate only starts at taxable income above $500,000, so a $75,000 salary never sniffs it: the highest rate actually touched is 5.5%, and the top slice of the example above contributes $550, about 22% of the total bill. The other 78% is spread across the lower 6 brackets.
Joint filers in Connecticut get thresholds that are exactly double the single ones, so two earners who marry face no bracket penalty on the same combined income. The joint standard deduction of $0 is likewise double the single $0.
To turn these figures into an actual paycheck, use the Connecticut income tax calculator for any salary, or the Connecticut take-home pay calculator to see the same salary after federal tax and FICA as well. Per pay period, the paycheck calculator breaks the Connecticut result down further, and the state tax brackets hub lines up all 50 states and DC side by side.
Frequently asked questions
What is the top income tax rate in Connecticut for 2026?
The top marginal rate in Connecticut is 6.99%, and it applies only to taxable income above $500,000 for single filers. Every dollar below that line pays less, starting at 2% on the first slice.
How many tax brackets does Connecticut have?
Connecticut has 7 brackets for 2026, running from 2% on the first slice of taxable income to 6.99% at the top. Joint filers use a wider schedule, with a standard deduction of $0 instead of $0.
What is the standard deduction in Connecticut for 2026?
The standard deduction is $0 for single filers and $0 for married filing jointly. A personal exemption of $15,000 single and $24,000 joint also applies.
How much Connecticut income tax is owed on $75,000?
A single filer earning $75,000 pays $2,550 of Connecticut income tax for 2026 in this model, an effective rate of 3.40%, even though the top bracket reached is 5.5%.