Kentucky Income Tax Calculator
Calculate your Kentucky (KY) state income tax for 2026. Get an instant estimate based on official KY tax brackets.
Your Kentucky Tax Estimate
Kentucky Tax Brackets for 2026
Kentucky has a flat 4.0% state income tax rate — the same rate applies to all income levels, regardless of how much you earn.
Tax brackets are estimates for 2026. Actual brackets may vary slightly due to inflation adjustments. Check the official Kentucky Department of Revenue for the most current rates.
How Kentucky Income Tax Works
Kentucky uses a flat-rate tax system: every taxpayer pays the same percentage (4.0%) of their taxable income, regardless of how much they earn. The state calculates your taxable income by subtracting the standard deduction (or itemized deductions) from your gross income, then multiplies by 4.0%.
When you earn income in Kentucky, your employer withholds both federal income tax (sent to the IRS) and KY state tax (sent to the Kentucky Department of Revenue). At tax time, you file two separate returns: one federal (Form 1040) and one KY state return.
You can file Kentucky state taxes through tax software (TurboTax, H&R Block, FreeTaxUSA), hire a local accountant, or file directly with the Kentucky Department of Revenue. Most KY state returns are due April 15, the same as federal. Some states offer a 6-month extension (to October 15) if you also extend your federal return.
Example: Kentucky Tax on $75,000
A single Kentucky resident earning $75,000 in 2026 would pay approximately:
- Federal tax: ~$10,500 (24% marginal bracket, after deductions)
- KY state tax: $2,416 (calculated using the brackets above)
- FICA (Social Security + Medicare): $5,738 (7.65% on first $168,600)
- Total annual tax burden: ~$18,654
- Effective tax rate: 24.9% (combined federal + KY state)
Use the calculator above to get your personalized estimate. Adjust the income to see how raises, bonuses, or side income affect your KY tax.
Frequently Asked Questions
What is the Kentucky state income tax rate for 2026?
Kentucky uses a flat tax rate of 4.0% on all taxable income.
Does Kentucky have a state income tax?
Yes, Kentucky has a state income tax. The state taxes most types of income, including wages, salaries, self-employment income, and retirement distributions. Kentucky brackets are flat at 4.0%.
How do I file Kentucky state taxes?
You file Kentucky state taxes separately from your federal return. Most residents use state tax software, an accountant, or file directly with the Kentucky Department of Revenue. The state return is due April 15 (or April 30 for some states) — same as federal.
What deductions does Kentucky allow?
Kentucky allows the standard deduction (set by the state, not always the same as federal). Most states also allow itemized deductions, retirement income exclusions, and state-specific credits for education, retirement, and working families.
Is Kentucky tax-friendly for retirees?
Kentucky is moderately retiree-friendly. The 4.0% flat rate applies to retirement income. Social Security is not taxed at the state level. There is no special senior deduction, but the standard deduction is available to all filers.