Kentucky Income Tax Calculator 2026
Kentucky taxes income at a single flat 4% rate for 2026 — estimate yours below.
Kentucky's flat 4% income tax, explained
Kentucky (KY) taxes income at a single flat 4% rate rather than graduated brackets, so — unlike the federal system — every dollar of Kentucky taxable income is taxed at the same rate. That makes the state calculation simple, but it is separate from federal income tax and from Kentucky sales tax.
What to know about Kentucky tax
- Kentucky moved to a single flat income-tax rate, with further reductions conditioned on meeting revenue triggers.
- Many Kentucky cities and counties levy a separate local occupational/payroll tax on wages in addition to the state flat tax.
- There are no local sales taxes — the 6% state rate applies statewide.
Frequently Asked Questions
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Calculate →Disclaimer
This calculator provides estimates for informational and educational purposes only. SmartTaxCalcs does not provide tax advice. Your actual tax liability may differ based on your specific situation, recent law changes, and circumstances not modeled here (e.g., AMT, NIIT, special credits). We strongly recommend consulting a qualified tax professional (CPA, Enrolled Agent, or tax attorney) before filing or making financial decisions.
Data source: IRS Revenue Procedure / state Departments of Revenue. Last data update: May 19, 2026.