Kentucky Paycheck Calculator

Kentucky moved to a flat income tax in 2018, replacing a graduated schedule, and set the rate at 5%. Legislation passed in 2022 created a mechanism to cut the rate by half a percentage point at a time whenever the state meets specified revenue and reserve conditions.

Those conditions have been met repeatedly, taking the rate to 4.5%, then 4%, and now 3.5%. Each reduction requires a separate legislative vote confirming the trigger has been satisfied, so the cuts are not automatic — but the direction has been consistent.

Kentucky's standard deduction is modest at $3,360, so Kentucky taxable income tracks fairly close to gross pay. The low rate rather than the deduction is what keeps the state bill small.

Kentucky's local tax system is one of the more pervasive in the country. Counties, cities and school districts levy occupational licence taxes on wages earned within their boundaries, and the great majority of the state is covered by at least one.

Louisville Metro and Lexington-Fayette both charge rates above 2%, and some jurisdictions stack a county and a city tax together. Because the tax applies where the work is performed, commuting into a higher-rate jurisdiction means paying its rate.

Crucially, these are levied on gross wages with no deductions or exemptions, unlike the state income tax which applies after the standard deduction. That makes a 2% occupational tax more expensive in practice than a 2% income tax would be. For a Louisville worker, the local tax can exceed the state income tax bill outright.

Kentucky does not tax Social Security benefits, and it exempts a capped amount of other retirement income per person. Pension income attributable to service before 1998 receives fuller protection, a legacy provision that still benefits many longer-serving public employees.

Kentucky maintains reciprocal agreements with Illinois, Indiana, Michigan, Ohio, Virginia, West Virginia and Wisconsin. Residents of those states working in Kentucky are not subject to Kentucky state income tax on wages — though local occupational taxes still apply, since reciprocity does not cover them.

That exception matters enormously around Cincinnati, where large numbers of Ohio residents work in Northern Kentucky. They escape the state income tax but still pay the local occupational tax on every dollar earned there.