Kentucky Income Tax Calculator

Estimate your Kentucky income tax burden

Updated for 2024 tax year on Jul 23, 2024

What was updated? Fixed calculation error with federal and state payroll taxes

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How to calculate your Kentucky income taxes

Understanding your Kentucky income taxes

In Kentucky, taxpayers experience a streamlined process, as the state employs a flat income tax rate of 5%. This means that regardless of income level, taxpayers owe the same percentage of their income to the state.

The state payroll tax, largely for unemployment insurance, varies between 0.3% and 9%. This rate fluctuates based on the employer’s experience rating, which is influenced by the number of former employees who have claimed unemployment benefits.

Kentucky offers a standard deduction for all taxpayers.

Calculate your income tax in Kentucky

  1. Work out your total federal income tax
    1. Gross income adjusted
      Gross income − Pre-tax deductions = Gross income adjusted
    2. Federal taxable income
      Gross income adjusted − Federal standard/itemized deductions = Federal taxable income
    3. Federal income tax liability
      Federal taxable income × Federal income tax rate = Federal income tax liability
    4. Federal payroll tax liability
      Gross income × Federal payroll tax rate = Federal payroll tax liability
  2. Calculate your total Kentucky state income tax
    1. Kentucky state taxable income
      Gross income adjusted − Kentucky state standard/itemized deductions = Kentucky state taxable income
    2. Kentucky state income tax liability
      Kentucky state taxable income × Kentucky state income tax rate = Kentucky state income tax liability
  3. Add up all the taxes
    Federal income tax liability + Federal payroll tax liability + Kentucky state income tax liability = Your total income tax liability

State income tax brackets

Refer to Tax Foundation for more details.

Tax year Filing status Taxable income Rate
2024 Single
Married, Filing Jointly or Widow(er)
Married, Filing Separately
Head of Household
Any 4%
2023 Single
Married, Filing Jointly or Widow(er)
Married, Filing Separately
Head of Household
Any 4.5%
2022
2021
2020
Single
Married, Filing Jointly or Widow(er)
Married, Filing Separately
Head of Household
Any 5%

State standard deduction

Tax year Filing status Standard deduction amount
2024
2023
Single
Married, Filing Separately
$2,980
Married, Filing Jointly or Widow(er)
Head of Household
$5,960
2022 Single
Married, Filing Separately
$2,770
Married, Filing Jointly or Widow(er)
Head of Household
$5,540
2021 Single
Married, Filing Separately
$2,690
Married, Filing Jointly or Widow(er)
Head of Household
$5,380
2020 Single
Married, Filing Separately
$2,650
Married, Filing Jointly or Widow(er)
Head of Household
$5,300

FAQs

How to calculate income tax in Kentucky?

Follow the steps below to calculate your total income tax in Kentucky:

  1. Work out your total federal income tax
  2. Calculate your total Kentucky state income tax
  3. Sum up all the taxes

How much income tax do I pay in Kentucky?

Kentucky imposes a flat state income tax rate of 4% on all taxable income for the 2024 tax year.