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●UPDATED JANUARY 2026 · IRS COMPLIANT

Connecticut Bonus Tax
Calculator 2026

Calculate exactly how much of your bonus you keep in Connecticut after federal taxes, 6.5% state tax, and FICA. No data stored.

Federal + State Taxes All 50 States No Registration 2026 Tax Rules 100% Private
BONUS TAX CALCULATOR
2026 IRS RULES · INSTANT RESULTS
Connecticut — 6.5% State Tax
Take-Home Bonus
$6,385
Tax Rate
36.1%
TAX BREAKDOWN
CONNECTICUT · 2026 IRS
Gross Bonus$10,000
Federal Income Tax
Aggregate method
−$2,200 (22.0%)
Connecticut State Tax
6.5% flat rate
−$650 (6.5%)
Social Security
6.2% up to $168,600
−$620
Medicare
1.45% all wages
−$145
Total Taxes−$3,615 (36.1%)
Take-Home Bonus$6,385
100% Private
All calculations happen in your browser. We never see your income or results.
IRS Compliant 2026
Updated with official 2026 federal tax brackets, FICA rates, and state income tax rates.
Instant Results
No waiting. See your exact take-home broken down by federal, state, Social Security, and Medicare.

How Are Bonuses Taxed in Connecticut?

In Connecticut, bonuses are classified as supplemental wages by the IRS. Federal taxes are calculated using the aggregate method — your bonus is added to your annual salary to determine your marginal tax bracket, which is more accurate than the flat 22% withholding method.

Connecticut withholds approximately 6.5% state income tax on supplemental wages including bonuses. This is in addition to federal income tax and FICA.

2026 Federal Bonus Tax Rates

The IRS optional flat supplemental withholding rate for 2026 is 22% for bonuses under $1 million. However, using the aggregate method (as this calculator does), your effective federal rate depends on your total income and filing status — it may be higher or lower than 22%.

Compare bonus taxes across all 50 states →

Bonus Tax in Connecticut: What You Need to Know

Connecticut taxes bonus income at 6.5% — one of the highest rates in the Northeast. Combined with federal 22% withholding and FICA, a Connecticut worker receiving a $10,000 bonus takes home approximately $6,890. Connecticut also imposes a 0.5% surcharge on incomes above $500,000.