Kentucky Standard Deduction
The Kentucky standard deduction is a flat amount you can subtract from your gross income before Kentucky income tax is calculated, instead of itemising individual deductions. This page shows the Kentucky standard deduction for tax year 2025 by filing status, sourced directly from the Kentucky Department of Revenue, and calculates your Kentucky taxable income after the deduction. Enter your gross income and choose your filing status to see the deduction that applies and the taxable income that remains. Most filers take the standard deduction because it is simpler and, for many, larger than their itemisable deductions. You should itemise only if your allowable Kentucky itemised deductions add up to more than the standard amount. The standard deduction is separate from the federal standard deduction the IRS applies to your federal return, and from any personal exemptions or credits Kentucky provides. Use this alongside the Kentucky income tax calculator to see how the deduction flows through to your final state tax. All figures here are the official published amounts; nothing is estimated.
The Kentucky standard deduction for 2025 is $3,160.00 (single) and $3,160.00 (married filing jointly). On $60,000.00 of gross income, a single filer has $56,840.00 of Kentucky taxable income.
Kentucky standard deduction by filing status (2025)
| Filing status | Standard deduction | Source |
|---|---|---|
| Single | $3,160.00 | Kentucky Department of Revenue |
| Married filing jointly | $3,160.00 | Kentucky Department of Revenue |
| Head of household | $3,160.00 | Kentucky Department of Revenue |
| Married filing separately | $3,160.00 | Kentucky Department of Revenue |
Kentucky's standard deduction is $3,160 for all filing statuses for tax year 2024. The amount is adjusted annually for inflation under KRS §141.081. All filers receive the same deduction regardless of filing status. Kentucky eliminated most itemized deductions in 2018, making the standard deduction the primary offset for most taxpayers.
Formula
taxable income = max(0, gross income - standard deduction for your filing status)
Kentucky standard deduction: frequently asked questions
What is the Kentucky standard deduction for 2025?
For tax year 2025, the Kentucky standard deduction is $3,160.00 for single filers and $3,160.00 for married couples filing jointly, as published by the Kentucky Department of Revenue. It is subtracted from your gross income to give your Kentucky taxable income.
How does the Kentucky standard deduction affect my tax?
The standard deduction lowers your Kentucky taxable income, which is the figure the state income tax brackets are applied to. A single filer with $60,000.00 of gross income and the $3,160.00 standard deduction has $56,840.00 of Kentucky taxable income before any other adjustments.
Should I take the Kentucky standard deduction or itemise?
Take whichever is larger. If your total itemised deductions allowed by Kentucky exceed the standard deduction of $3,160.00 (single) or $3,160.00 (married jointly), itemising lowers your taxable income more. Otherwise the standard deduction is simpler and larger. Check the rules with the Kentucky Department of Revenue.
What is Kentucky's state income tax rate for 2025?
Kentucky's flat income tax rate is 4.0% for tax year 2025. This rate applies to all taxable income for all filing statuses. It was reduced from 4.5% to 4.0% effective January 1, 2024 under Kentucky HB 8 (2023), per KRS §141.020.
What is the Kentucky standard deduction for 2025?
The Kentucky standard deduction is $3,160 for all filing statuses for 2024 (the 2025 figure is adjusted annually for inflation under KRS §141.081). All filers receive the same deduction amount regardless of whether they file as single, married jointly, separately, or head of household. Check the Kentucky Department of Revenue for the confirmed 2025 figure.
Will Kentucky's income tax rate drop below 4.0%?
Possibly. Kentucky HB 8 (2023) includes a revenue trigger that could reduce the rate from 4.0% to 3.5% effective January 1, 2026, provided the state's general fund revenues meet the required threshold. If the trigger is not met for 2026, it may be evaluated again in subsequent years.
Can Kentucky residents itemize deductions?
Kentucky eliminated most itemized deductions in 2018 as part of its tax reform. A limited set of deductions remains available, but for most taxpayers the standard deduction of $3,160 is the primary offset. Federal itemized deductions are not automatically deductible on the Kentucky return.
Official sources
- Kentucky standard deduction (tax year 2025): Kentucky Department of Revenue, as at Jun 12, 2026.
Reviewed by the CalculatorHub team, edited by James Graham, 25 June 2026. See our methodology. General information, not financial or tax advice.