Kentucky Income Tax Calculator (2026 Filing Season)
Kentucky has a flat 4% state income tax for the 2025 tax year.
Flat 4.0% for 2025; a further cut to 3.5% is enacted for 2026.
We subtract Kentucky's standard deduction ($3,270) automatically.
The same $75,000 income in a no-income-tax state (Texas, Florida, Tennessee…) would owe $0 in state income tax — a difference of $2,869 per year.
We only store your state and filing status — never your income.
Kentucky 2025 Tax Brackets
Single
| Taxable income over | Rate |
|---|---|
| $0 | 4% |
Married filing jointly
| Taxable income over | Rate |
|---|---|
| $0 | 4% |
Standard deduction: $3,270 (single) / $6,540 (married filing jointly) — subtracted automatically in the estimator above.
File your KY return
These handle both your federal and Kentucky state return.
FreeTaxUSA
H&R Block Deluxe on Amazon includes federal + 1 state, covers all common deductions including mortgage interest, donations, and investments. Physical disc or download available. One of the best-value tax software options.
We may earn a commission if you buy through these links — it never affects what you pay.
Our complete Kentucky tax guide covers sales tax, property tax, deadlines, and key deductions.
Educational estimate only — excludes credits, itemized deductions, and local income taxes except where noted. 2025 tax-year data, verified 2026-06. Not tax advice; confirm with the Kentucky revenue department or a tax professional before filing.