|Tax Bracket (Single)||Marginal Tax Rate|
|Tax Bracket (Couple)||Marginal Tax Rate|
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.
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).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 a .CSV file of the Colorado income tax brackets|
|Download all 2013 state income tax tables as a PDF|
- The Colorado tax brackets on this page were last updated from the Colorado Department of Revenue in March, 2013. Please contact us if any of our Colorado tax data is incorrect or out of date.
- Colorado tax return forms and the latest tax tables are available from the Department of Revenue .
- Before the official 2013 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.
- The income tax estimator tool is provided by Tax-Rates.org.