Connecticut Tax Calculator 2026
Estimate your federal and Connecticut state taxes for the 2026 tax year.
Pre-configured for Connecticut residents, 2026 tax year. Filing your 2025 return? Connecticut Tax Calculator 2025
Your numbers
Pre-tax contributions
$2,200 federal Child Tax Credit each, applied to your 2026 liability.
Estimate your refund (optional)
Enter what was withheld this year — W-2 box 2 (federal) and box 17 (state) — to compare against your estimated liability.
$57,740 per year, shown per month
of gross income, all taxes
federal + CT on your next dollar
Estimate only, for a single W-2 earner taking the standard deduction. Itemized deductions and most credits beyond the Child Tax Credit aren't modeled.
Only the top slice pays 22%
Federal tax is progressive: each bracket taxes only the income inside it. Here is how your $58,900 of taxable income fills the 2026 brackets.
Understanding Connecticut Income Taxes
Residents of Connecticut pay state income tax on top of federal taxes. Connecticut’s lower two rates were cut to 2% and 4.5% in 2024; high-income benefit-recapture add-backs (modeled here) phase the advantage back out. The amount you owe depends on your taxable income, filing status, and the deductions and credits Connecticut allows.
Key Takeaways for 2026
- Federal tax brackets and standard deductions have been adjusted for inflation under IRS Rev. Proc. 2025-32.
- Connecticut's own rates, standard deduction, and enacted 2026 changes are applied to your state estimate automatically.
- Don't forget FICA taxes (Social Security and Medicare) — they're withheld from your paycheck automatically and included in the take-home figure above.
Go Deeper on Your 2026 Taxes
Federal tax tools
- Federal Income Tax Calculator — brackets, deductions, and your effective rate
- Tax Bracket Calculator — see which bracket your income lands in
- Paycheck Tax Calculator — per-paycheck withholding and take-home
- Marriage Tax Calculator — filing jointly vs. separately
- W-4 Withholding Calculator — is your paycheck withholding on target?
- Estimated Tax Calculator — quarterly 1040-ES vouchers for 1099 income
- 2026 State Tax Changes — every enacted cut, verified
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Frequently Asked Questions
What are the Connecticut state income tax brackets for 2026?
For the 2026 tax year, Connecticut has a graduated income tax: rates run from 2% to 6.99% across seven brackets, with the top rate applying above $500,000 for single filers (married-filing-jointly brackets are wider). Connecticut’s lower two rates were cut to 2% and 4.5% in 2024; high-income benefit-recapture add-backs (modeled here) phase the advantage back out.
How is Connecticut state income tax calculated?
Connecticut applies its bracket rates to your AGI minus its personal exemption — up to $15,000 single / $24,000 joint, phasing out dollar-for-dollar above $30,000/$48,000 of AGI. This calculator models the phase-out plus Connecticut’s 2%-bracket phase-out and high-income benefit recapture add-backs. There is no standard deduction. This calculator applies the latest published Connecticut figures automatically.
How much tax will I pay on a $75,000 salary in Connecticut?
Roughly $3,478 in Connecticut state income tax for a single filer taking the standard deduction in 2026. Add about $7,670 of federal income tax and $5,738 of FICA (7.65%), plus about $375 in CT Paid Leave, for total taxes near $17,260 and take-home around $57,740. Credits and other income can change this.
What percentage of your paycheck goes to taxes in Connecticut?
About 23.0% for a single filer earning $75,000 in 2026: federal income tax (~10.2%), FICA (7.65%), and Connecticut state tax (~4.6%) plus state payroll deductions. Your exact percentage depends on income, filing status, and pre-tax contributions like a 401(k).
Does Connecticut tax Social Security benefits?
Partially. Social Security is fully exempt below $75,000 AGI ($100,000 joint); above that, at least 75% of benefits remain exempt.
Does Connecticut tax retirement income like 401(k) or pension withdrawals?
Pension and annuity income is 100% deductible — and IRA distributions become 100% deductible in 2026 (75% in 2025) — but only below the $75,000/$100,000 AGI cliffs.