Colorado Income Tax Rate 2017 - 2018

Colorado state income tax rate table for the 2017 - 2018 filing season has one income tax bracket or a flat CO tax rate of 4.63% for Single, Married Filing Jointly, Married Filing Separately, and Head of Household statuses. The Colorado tax rate and tax brackets are unchanged from last year. Colorado income tax rate and tax brackets shown in the table below are based on income earned between January 1, 2017 through December 31, 2017.

The current year 2017 Colorado income tax rate of 4.63% has remained unchanged since 2000. Outlook for the 2018 Colorado income tax rate is to remain unchanged at 4.63%.

Single Tax BracketsTax Rate 2017
Source: 2017 Colorado Tax Rate Schedule, published by the Colorado Department of Revenue..
$0to4.63%
Married Filing Jointly BracketsTax Rate 2017
Source: 2017 Colorado Tax Rate Schedule, published by the Colorado Department of Revenue..
$0to4.63%
Married Filing Separately BracketsTax Rate 2017
Source: 2017 Colorado Tax Rate Schedule, published by the Colorado Department of Revenue..
$0to4.63%
Head of Household BracketsTax Rate 2017
Source: 2017 Colorado Tax Rate Schedule, published by the Colorado Department of Revenue..
$0to4.63%

Please reference the Colorado tax forms and instructions booklet published by the Colorado Department of Revenue to determine if you owe state income tax or are due a state income tax refund. Colorado income tax forms are generally published at the end of each calendar year, which will include any last minute 2017 - 2018 legislative changes to the CO tax rate or tax brackets. The Colorado income tax rate tables and tax brackets shown on this web page are for illustration purposes only.

Colorado Tax Brackets 2017 - 2018

Looking at the tax rate and tax brackets shown in the tables above for Colorado, we can see that Colorado collects individual income taxes similarly for Single and Married filing statuses, for example. We can also see the flat nature of Colorado state income tax rates at 4.63% regardless of income and status.

For single taxpayers living and working in the state of Colorado:

  • Flat tax rate of 4.63% is applied to all taxable income.

For married taxpayers living and working in the state of Colorado:

  • Flat tax rate of 4.63% is applied to all taxable income.

For the Single, Married Filing Jointly, Married Filing Separately, and Head of Household filing statuses, the CO tax rates and the number of income tax brackets remain the same.

Last updated: September 29, 2017