Every Connecticut income tax bracket for 2026, exactly as published — with the standard deduction, the exemption credit, and a tool that finds your bracket and shows the tax slice by slice.
| Rate | Taxable income over | Up to | Cumulative tax at top of band |
|---|---|---|---|
| 2% | $0 | $10,000 | $200 |
| 4.5% | $10,000 | $50,000 | $2,000 |
| 5.5% | $50,000 | $100,000 | $4,750 |
| 6% | $100,000 | $200,000 | $10,750 |
| 6.5% | $200,000 | $250,000 | $14,000 |
| 6.9% | $250,000 | $500,000 | $31,250 |
| 6.99% | $500,000 | and above | — |
Brackets apply to taxable income — and Connecticut has no standard deduction, so that is your gross income. Both tables are printed in full on this page; the tabs only choose which you look at first.
Enter your Connecticut taxable income (after the standard deduction). Your bracket lights up in the table above, and your tax is broken into its slices.
Figure A The bracket staircase
The staircase: each step is one bracket. The tax climbs only inside the step you are standing on — moving into a higher bracket never taxes your earlier income at the higher rate.
| Taxable income (single) | Connecticut tax | Effective rate | Top (marginal) rate |
|---|---|---|---|
| $50,000 | $2,000 | 4.0% | 4.5% |
| $75,000 | $3,375 | 4.5% | 5.5% |
| $100,000 | $4,750 | 4.8% | 5.5% |
| $150,000 | $7,750 | 5.2% | 6% |
Traditional IRA distributions reach a 100% exemption in 2026 for eligible filers, completing their phase-in (75% in 2025) and putting IRAs on the same footing as pension and annuity income: 100% exempt below $75,000 federal AGI (single) / $100,000 (joint), then stepping down to zero at $100,000 / $150,000. Source: Connecticut General Assembly retirement income exemption schedule; Connecticut DRS. The CT EITC continues at 40% of the federal credit, with the additional $250 for filers with at least one qualifying child that began in 2025. Source: Connecticut DRS, CT Earned Income Tax Credit. No change to Connecticut's seven bracket rates for 2026 (2% to 6.99%). Source: Tax Foundation 2026.
The state-specific rules behind the numbers above — the things a generic calculator gets wrong about Connecticut.
Connecticut has no standard deduction. A single filer instead claims a personal exemption of up to $15,000 ($24,000 married filing jointly) — but it shrinks by $1,000 for every $1,000, or fraction of $1,000, by which Connecticut AGI exceeds $30,000 (single) or $48,000 (joint), and is fully gone by about $44,000 of single AGI. Most full-time workers therefore get no exemption at all and are taxed on their entire Connecticut AGI.
Source: Tax Foundation 2026 (Connecticut personal exemption phase-out note); Connecticut DRS Tax Calculation Schedule
After the brackets are applied, Connecticut adjusts the bill twice. A personal tax credit equal to between 1% and 75% of the tax, based on Connecticut AGI, cuts the bill for lower-income filers and phases out as income rises. In the other direction, benefit recapture adds tax back for higher earners — first the benefit of the 2% bottom bracket, then a recapture that phases in until high-income filers effectively pay near the 6.99% top rate on almost all their income. Two filers with identical bracket math can owe noticeably different Connecticut tax.
Source: Tax Foundation 2026 (personal tax credits 1–75%; tax benefit recapture); Connecticut General Statutes 12-700; DRS Tax Calculation Schedule
Connecticut exempts 100% of Social Security benefits for filers with federal AGI below $75,000 (single, married filing separately or head of household) or $100,000 (married filing jointly). Above those lines the treatment is partial rather than a cliff: the amount Connecticut can tax is generally capped at the smaller of the federally taxable portion of your benefits or 25% of your total benefits.
Source: Connecticut DRS Form CT-1040 instructions (Social Security modification); Connecticut General Assembly, Income Tax Exemptions for Retirement Income
Below the same $75,000 single / $100,000 joint federal AGI thresholds, qualifying pension and annuity income — including 401(k), 403(b) and 457(b) distributions — is 100% exempt. Above the thresholds the exemption steps down gradually (85%, 70%, 55% and so on) to zero at $100,000 single / $150,000 joint AGI, replacing the old all-or-nothing cliff. Traditional IRA distributions reach the same 100% exemption in 2026. Military retirement pay is fully exempt at any income, and Connecticut teachers' retirement pay has its own 50% subtraction option.
Source: Connecticut General Assembly, Income Tax Exemptions for Retirement Income; Connecticut DRS (pension, annuity and IRA phase-out schedule)
The Connecticut EITC is a refundable credit worth 40% of the federal earned income tax credit — among the most generous state EITCs in the US — and filers with at least one qualifying child receive an additional flat $250 on top. It is claimed on Schedule CT-EITC and can generate a refund even when no Connecticut tax is owed.
Source: Connecticut Department of Revenue Services, CT Earned Income Tax Credit (40% of federal; +$250 with a qualifying child)
Connecticut has no city, town or county income taxes. Connecticut municipalities raise revenue mainly through property taxes (including on motor vehicles), so your town affects your property tax bill, not your paycheck or your CT-1040.
Source: Tax Foundation — State Individual Income Tax Rates and Brackets, 2026 (Connecticut brackets; no standard deduction; personal exemption phase-out; personal tax credits 1–75%; benefit recapture)
Connecticut has no standard deduction. Instead a single filer gets a personal exemption of up to $15,000, but it phases out fast — reduced by $1,000 for every $1,000 (or part of $1,000) of Connecticut AGI over $30,000, so it is gone well before middle incomes. Above that, all of your Connecticut AGI is taxable, which is why Connecticut bills surprise people who expect a federal-style standard deduction.
On $75,000 of wages as a single filer, Connecticut tax works out to $3,375, with federal tax of $7,670 and FICA of $5,738 — total tax of $16,783 and take-home pay of $58,218. At this income the $15,000 personal exemption has fully phased out, so Connecticut taxes the income from the first dollar through its seven brackets.
Only partly, and only above an income line. If your federal AGI is below $75,000 (single) or $100,000 (married filing jointly), Connecticut exempts 100% of your Social Security benefits. Above those thresholds the exemption is partial — as a general rule the taxable amount is capped at the smaller of your federally taxable benefits or 25% of your total benefits, so Connecticut never taxes more than a quarter of your total benefits.
Yes, from 2026 in full. Pension and annuity income (including 401(k), 403(b) and 457(b) distributions) is 100% exempt if your federal AGI is below $75,000 single / $100,000 joint, then phases down in steps to zero at $100,000 / $150,000. Traditional IRA distributions join them at a 100% exemption for the first time in 2026, completing a phase-in that had them at 75% in 2025. Military retirement pay is fully exempt regardless of income.
The CT EITC is a refundable credit worth 40% of your federal earned income tax credit — one of the highest state EITC percentages in the country — plus an extra flat $250 if you have at least one qualifying child for federal purposes. You must be eligible for the federal EITC and claim it on Schedule CT-EITC with your Connecticut return.
Benefit recapture. Connecticut's Tax Calculation Schedule phases out the value of its lower brackets for higher earners: the benefit of the 2% bracket is added back first, and a further recapture phases in until a high-income filer's income is effectively taxed at close to the top 6.99% rate on nearly all of it, not just the slice above $500,000. An income-based personal tax credit of 1% to 75% of tax works in the opposite direction at lower incomes.
Connecticut income tax brackets for 2026 in full: every rate and threshold for single and joint filers, no standard deduction, worked examples and a find-your-bracket tool.
100% free · No sign-up · No daily limits · No watermarks · Processed in your browser — files never leave your device
Every Connecticut income tax bracket for 2026, printed in full exactly as published: single and married-filing-jointly tables, the standard deduction, worked examples on taxable income, and a find-your-bracket tool that lights up your band and builds your tax slice by slice. Rates checked 31 October 2026; all figures are for the 2026 tax year.
On $100,000 of taxable income in Connecticut (single filer, 2026), the slice-by-slice tax is $4,750.00 — the top slice is taxed at 6.99%, but the effective rate on the whole $100,000 is far lower because the early slices are taxed at the bottom rates. A $100,000 salary is not $100,000 of taxable income: the schedule comes off first, which is what the companion income calculator works through.
Connecticut taxes income in 7 bands from 2% to 6.99%. Connecticut has no standard deduction — tax applies from the first dollar of income. The tables are the state’s official 2026 schedules (sources printed on the page); cumulative tax at the top of each band is computed slice by slice from those rates. The federal comparison figures use IRS Rev. Proc. 2025-32.
Connecticut has no standard deduction. Instead a single filer gets a personal exemption of up to $15,000, but it phases out fast — reduced by $1,000 for every $1,000 (or part of $1,000) of Connecticut AGI over $30,000, so it is gone well before middle incomes. Above that, all of your Connecticut AGI is taxable, which is why Connecticut bills surprise people who expect a federal-style standard deduction.
On $75,000 of wages as a single filer, Connecticut tax works out to $3,375, with federal tax of $7,670 and FICA of $5,738 — total tax of $16,783 and take-home pay of $58,218. At this income the $15,000 personal exemption has fully phased out, so Connecticut taxes the income from the first dollar through its seven brackets.
Only partly, and only above an income line. If your federal AGI is below $75,000 (single) or $100,000 (married filing jointly), Connecticut exempts 100% of your Social Security benefits. Above those thresholds the exemption is partial — as a general rule the taxable amount is capped at the smaller of your federally taxable benefits or 25% of your total benefits, so Connecticut never taxes more than a quarter of your total benefits.
Yes, from 2026 in full. Pension and annuity income (including 401(k), 403(b) and 457(b) distributions) is 100% exempt if your federal AGI is below $75,000 single / $100,000 joint, then phases down in steps to zero at $100,000 / $150,000. Traditional IRA distributions join them at a 100% exemption for the first time in 2026, completing a phase-in that had them at 75% in 2025. Military retirement pay is fully exempt regardless of income.
The CT EITC is a refundable credit worth 40% of your federal earned income tax credit — one of the highest state EITC percentages in the country — plus an extra flat $250 if you have at least one qualifying child for federal purposes. You must be eligible for the federal EITC and claim it on Schedule CT-EITC with your Connecticut return.
Benefit recapture. Connecticut's Tax Calculation Schedule phases out the value of its lower brackets for higher earners: the benefit of the 2% bracket is added back first, and a further recapture phases in until a high-income filer's income is effectively taxed at close to the top 6.99% rate on nearly all of it, not just the slice above $500,000. An income-based personal tax credit of 1% to 75% of tax works in the opposite direction at lower incomes.
What is missing, broken, or could be better on this tool? Tell us — we read every suggestion.
✅ Thanks — your suggestion has been received. Suggestions like yours shape what we build next.