Kentucky income tax goes up to 3.5% at the top bracket. Calculate your combined federal + state effective tax rate for 2026. Formula shown, sources cited — no account required.
The state applies a flat 3.5% income tax rate to all taxable income, a clean structure that eliminates bracket planning complexity. For the median earner at $64,526, state income tax comes to roughly $2,258 before any standard deductions or credits reduce taxable income. A personal exemption reduces the taxable base for most filers, lowering the effective rate below 3.5% in practice. Federal taxes add graduated rates on top, pushing the combined effective rate for a median-income household into the low-to-mid twenties. One notable feature is the pension exclusion — up to $31,110 of pension income per person can be excluded from state taxable income, which significantly reduces the tax burden for retirees with moderate pension income. Social Security is not taxed at the state level, which benefits older filers further. The state does not have a local income tax layer in most jurisdictions, though some counties and cities levy occupational taxes on wages. Sales tax averages 6.0%, which is moderate by national standards. Use the tax bracket calculator to compare your effective rate at your income level and see how the personal exemption and any pension exclusion might apply.
Kentucky Tax Brackets Explained (2026)
Kentucky has a state income tax with a top marginal rate of 3.5%. On top of federal rates (10%–37%), residents can face a combined marginal rate exceeding 35% at higher income levels. However, your effective rate is always lower than the marginal rate because only income above each threshold is taxed at that bracket's rate.
The median household in Kentucky earns $64,526/year. At that income (single filer), the federal effective rate is approximately 12–14%, bringing total income tax (federal + state) to roughly 14–16%.
How Marginal vs. Effective Rate Works
The marginal rate is the rate on your last dollar of income — it does not apply to all income. The effective rate is your total tax divided by total income. For example, someone earning $100,000 in Kentucky has a 22% federal marginal rate but an effective federal rate of roughly 15%, because the first $44,725 (2024) is taxed at 10% and 12%, not 22%.