Colorado Income Tax Calculator

Estimate your Colorado income tax burden

Updated for 2024 tax year on Jul 23, 2024

Calculate your income tax in these states

How to calculate your Colorado income taxes

Understanding your Colorado income taxes

Colorado’s income tax system employs a flat rate of 4.55%, ensuring that every taxpayer contributes to the state’s well-being at the same consistent rate.

Calculate your income tax in Colorado

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 Colorado state income tax
   1. Colorado state taxable income
      Gross income adjusted − Colorado state standard/itemized deductions = Colorado state taxable income
   2. Colorado state income tax liability
      Colorado state taxable income × Colorado state income tax rate = Colorado state income tax liability
   3. Colorado state payroll tax liability
      Gross income × Colorado state payroll tax rate = Colorado state payroll tax liability
3. Add up all the taxes
   Federal income tax liability + Federal payroll tax liability + Colorado state income tax liability + Colorado state payroll tax liability = Your total income tax liability

State payroll tax

State income tax brackets

Refer to Tax Foundation for more details.

State standard deduction

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