Connecticut Tax Calculator
Connecticut taxes income through a tiered bracket system, but it adds an unusual twist: a 'recapture' provision phases out the benefit of the lower brackets for high earners, which can push their effective rate above what the stated top bracket would suggest. Connecticut also exempts Social Security benefits for taxpayers below certain income levels. This calculator applies the current brackets to your entered income.
State Tax
$4,750Effective Rate
4.75%Marginal Rate
5.50%| Rate | Bracket Range | Tax |
|---|---|---|
| 2.00% | $0 – $10,000 | $200 |
| 4.50% | $10,000 – $50,000 | $1,800 |
| 5.50% | $50,000 – $100,000 | $2,750 |
| Total | $4,750 | |
How Connecticut income tax works
- Connecticut layers several brackets, taxing each portion of income at its own rate.
- A recapture provision phases out the lower-bracket benefit for high earners, raising their effective rate.
- The calculator reports both your marginal rate and your true effective rate after any recapture effect.
Need the exact bracket thresholds instead of an estimate? See the Connecticut tax brackets for 2026 .
Estimate your Connecticut property tax by county, compare every state at the state tax brackets hub , or see the full tax-by-state directory .
Frequently asked questions
How is Connecticut income tax calculated?
Connecticut applies a tiered bracket schedule, and for higher earners a recapture provision phases out the benefit of the lower brackets, effectively pushing up their overall rate. The calculator applies the current schedule to your entered income.
Does Connecticut tax Social Security benefits?
Connecticut exempts Social Security benefits for taxpayers whose income falls below certain thresholds; higher earners may see a portion taxed.
What is Connecticut's tax recapture provision?
It's a mechanism that removes the benefit of lower tax brackets for high-income filers as their income rises, so their effective state rate can end up higher than the stated marginal bracket alone would suggest.
How much state tax will I pay in Connecticut?
It depends on your income level and whether the recapture provision applies to you. Enter your income above for an exact calculation.
Sources
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