What is the Kentucky income tax rate?

Kentucky taxes all taxable income at a flat rate of 4%. This applies equally to all income levels regardless of how much you earn.

How is Kentucky income tax calculated?

Multiply your taxable income by 4%. For example, a taxpayer with $75,000 in taxable income would owe $3,000 in Kentucky income tax.

Does Kentucky have a standard deduction?

Kentucky generally does not have a state-level standard deduction. Your taxable income is your gross income minus pre-tax deductions like 401(k) contributions.

How can I reduce my Kentucky income taxes?

Common strategies include maximizing pre-tax retirement contributions (401k, IRA), contributing to an HSA, and taking advantage of any available state tax credits.

How does Kentucky's 4% flat tax compare to neighboring states?

Kentucky's flat rate of 4% can be compared to neighboring states using the chart on this page. States with no income tax offer the lowest burden, while progressive states may be higher or lower depending on your income level.

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Kentucky Income Tax Calculator

Calculate your 2026 Kentucky state income tax. See your bracket breakdown, effective rate, and how Kentucky compares to neighboring states.

4% Flat Tax

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Itemized Deductions

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State Income Tax

Kentucky · 2026

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Effective Rate

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Marginal Rate

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State Tax

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vs National Average Effective Rate (4.2%)

Effective Rate vs Neighboring States

Kentucky Tax Brackets (2026)

Federal vs Kentucky Tax Comparison

Estimate for your income and filing status. Federal uses 2026 brackets and standard deduction.

Item	Federal	Kentucky	Total

About Kentucky state taxes (Tax year 2026)

Kentucky has a flat income tax rate of 4.0% on all taxable income, reduced from 4.5% in 2024. Further reductions are possible if revenue triggers are met. Kentucky previously had a progressive system.

Groceries are exempt from sales tax. Prescription drugs are exempt.

Kentucky's 4.0% flat rate is slightly below the national average, and its uniform 6% sales tax has no local add-ons, keeping the combined rate predictable.

Filing in Kentucky: returns for tax year 2026 are administered by the Kentucky Department of Revenue and are generally filed in 2027 by the federal April deadline unless Kentucky declares a state-specific extension. Tax type on this return: Flat. Top marginal rate: 4.0%. State sales-tax rate: 6.0%. For the most current contact info, see the Federation of Tax Administrators directory.

Kentucky — What is Kentucky's income tax rate? Kentucky has a flat income tax rate of 4.0% on all taxable income. This was reduced from 4.5% in 2024 as part of ongoing tax reform.

Kentucky — Does Kentucky tax groceries? No, groceries (unprepared food) are exempt from Kentucky's 6% sales tax.

Kentucky — Will Kentucky's tax rate decrease further? Potentially yes. Kentucky law allows the rate to drop by 0.5% increments if state revenue and budget reserves meet certain thresholds. The ultimate goal is to eventually eliminate the income tax.

Reviewed methodology

How this page is reviewed

Risk tier	High YMYL
Author	Calculover Editorial Team Tax education
Editorial owner	Calculover Tax & Payroll Desk State-tax methodology owner
Reviewer	Calculover Editorial Review Government-source and limitation review
Last reviewed	2026-05-14
Last verified	2026-05-14
Data effective date	2026-01-01
Jurisdiction	Kentucky

Methodology

State-tax per-state pages apply the published 2026 bracket schedule, standard deduction, and filing-status rules for the listed jurisdiction. Federal AGI inputs are mapped to state taxable income before bracket math runs. Local taxes (NYC, Philadelphia, certain Ohio cities) are flagged but not embedded in the base estimate.

Assumptions

The user enters federal AGI, filing status, and state-specific adjustments as provided.
Brackets, standard deductions, and credits reflect the 2026 statutory values published by the state Department of Revenue and the Tax Foundation.
Local income taxes and reciprocity-agreement situations are noted but not auto-applied.

Limitations

These pages do not predict mid-year legislative changes, rate adjustments, or new local tax assessments.
Multi-state filers, convenience-of-employer rules, and special-circumstance credits require additional tax-professional analysis.

Sources

State Tax Rates, Federation of Tax Administrators
State Individual Income Tax Rates and Brackets, Tax Foundation
State Government Resources, Internal Revenue Service

Professional guidance: This page is for state-tax education only and is not tax, legal, financial, or investment advice. State tax decisions and multi-state filing should be reviewed with a CPA or enrolled agent licensed in the relevant states.