Colorado Income Tax Table Tax Year 2023 Colorado Income Tax Brackets

Colorado - Single Tax Brackets
Tax Bracket Tax Rate
$0.00+ 4.4%
Colorado - Married Filing Jointly Tax Brackets
Tax Bracket Tax Rate
$0.00+ 4.4%

Colorado has a flat income tax of 4.4% — All earnings are taxed at the same rate, regardless of total income level

Colorado's income tax rates were last changed two years ago for tax year 2021, and the tax brackets have not been changed since at least 2001.

Colorado has a flat income tax rate which applies to both single and joint filers. The Federal Income Tax, in contrast to the Colorado income tax, has multiple tax brackets with varied bracket width for single or joint filers.

How do Colorado tax brackets work?

Technically, you don't have just one "tax bracket" - you pay all of the Colorado marginal tax rates from the lowest tax bracket to the tax bracket in which you earned your last dollar. For comparison purposes, however, your Colorado tax bracket is the tax bracket in which your last earned dollar in any given tax period falls.

You can think of the bracketed income tax as a flat amount for all of the money you earned up to your highest tax bracket, plus a marginal percentage of any amount you earned over that. The chart below breaks down the Colorado tax brackets using this model:

For earnings over $0.00, you'll pay 4.4% plus $0.00
For earnings over $0.00, you'll pay 4.4% plus $0.00

Colorado Income Tax Calculator Colorado Income Tax Calculator

Colorado Income Tax Estimator

You can use the income tax estimator to the left to calculate your approximate Colorado and Federal income tax based on the most recent tax brackets.

Keep in mind that this estimator assumes all income is from wages, assumes the standard deduction, and does not account for tax credits.

For a more detailed estimate that takes these factors into account, click "View Detailed Estimate" (this will will redirect to an external website).

Colorado Tax Deductions

When calculating your Colorado income tax, keep in mind that the Colorado state income tax brackets are only applied to your adjusted gross income (AGI) after you have made any qualifying deductions.

Qualifying deductions might include an itemized deduction, the Colorado standard deduction, exemptions for dependants, business expenses, etc.

Remember that Colorado may have very different deduction laws from the Federal Income Tax, so you may have to write a whole new list of deductions for your Colorado income tax return.

Download the Colorado tax table for Excel or database applications

Download .CSV file of CO income tax brackets

Download tax forms

Download or print Colorado income tax forms

Colorado Standard Deductions & Personal Exemption Amounts

In addition to marginal tax brackets, one of the major features of the Colorado income tax is deductions. The three most common deductions encountered by taxpayers are the Colorado Standard Deduction, the Colorado Personal Exemption, and the Colorado Dependent Deduction. The current values of these deductions for tax year 2023 are as follows:

Standard Deduction (Single) Standard Deduction (MFJ) Personal Exemption Dependant Exemption
$13,850.00 $27,700.00 $0.00 $0.00

The standard deduction, which Colorado has, is a deduction that is available by default to all taxpayers who do not instead choose to file an itemized deduction. Essentially, it translates to $13,850.00 per year of tax-free income for single Colorado taxpayers, and $27,700.00 for those filing jointly.

The Personal Exemption, which is not supported by the Colorado income tax, is an additional deduction you can take if you (and not someone else) are primarily responsible for your own living expenses. Likewise, you can take an additional dependent exemption for each qualifying dependent (like a child or family member), who you financially support.

The Federal income tax also has a standard deduction, personal exemptions, and dependant deductions, though they are different amounts than Colorado's and may have different rules.

Head over to the Federal income tax brackets page to learn about the Federal Income Tax, which applies in all states nationwide.

Colorado Income Tax Rate 2023 Sources & Citations

Disclaimer: While we do our best to keep this list of Colorado income tax rates up to date and complete, we cannot be held liable for errors or omissions. Is info on this page missing or out-of-date? Please let us know so we can fix it!

These CO income tax rates are updated for 2023 / 2024 The Colorado tax brackets on this page have been updated for tax year 2023, and are the latest brackets available. States often adjust their tax brackets on a yearly basis, so make sure to check back later for Colorado's updated tax year 2024 tax brackets!

Tax Data Sources:

  1. The Colorado tax brackets on this page were last updated from the Colorado Department of Revenue in 2023. Please contact us if any of our Colorado tax data is incorrect or out of date.
  2. Colorado tax return forms are available on the Colorado tax forms page or the Colorado Department of Revenue.
  3. Before the official 2024 Colorado income tax brackets are released, the brackets used on this page are an estimate based on the previous year's brackets. These numbers are subject to change if new Colorado tax tables are released.
  4. The Colorado income tax estimator tool is provided by .

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