Kentucky Income Tax Calculator
Calculate your Kentucky state income tax alongside federal tax. See the full bracket breakdown, effective rate, and combined tax liability.
Last updated: · Tax Foundation (2025 state brackets) + IRS Rev. Proc. 2025-32 (2026 federal)
On a $75,000 salary in Kentucky (single filer, 2025), your estimated state income tax is $2,873.60 (3.8% effective rate). Combined with federal tax of $7,670.00, your total income tax is $10,543.60 (14.1% combined effective rate). Kentucky uses a flat tax rate of 4.00%. Source: Tax Foundation, state revenue department.
Kentucky Deduction: $3,160.00
Standard deduction: $3,160.00
Flat rate of 4.0% for 2025 (reduced from 4.5%). Rate is scheduled to continue decreasing if revenue triggers are met.
Federal estimates use 2026 IRS brackets. State estimates use 2025 state rate data.
Results
Kentucky Tax Bracket Breakdown
| Rate | Range | Tax |
|---|---|---|
| 4.00% | $0 – ∞ | $2,873.60 |
| Total Kentucky Tax | $2,873.60 | |
Compare Kentucky with Other States
How This Is Calculated
Kentucky levies a flat income tax rate of 4.00% on all taxable income.
After applying the state deduction of $3,160.00, the tax is: (Income − Deduction) × 4.00%
Data source
State bracket data from the Tax Foundation (2025 State Individual Income Tax Rates and Brackets). Cross-referenced with the Kentucky revenue department. Federal brackets from IRS Rev. Proc. 2025-32 (2026).
Frequently Asked Questions
- How much is Kentucky income tax on $75,000?
- On a $75,000 salary in Kentucky, you would owe approximately $2,873.60 in state income tax (3.8% effective rate) plus $7,670.00 in federal income tax, for a combined total of $10,543.60 (14.1% combined effective rate).
- What is the Kentucky income tax rate for 2025?
- Kentucky has a flat income tax rate of 4.00%. All taxable income is taxed at the same rate. Flat rate of 4.0% for 2025 (reduced from 4.5%). Rate is scheduled to continue decreasing if revenue triggers are met.