Colorado charges 4.4% flat state income tax. Use the freelance tax calculator pre-loaded with Colorado rates.
Open Freelance Tax Calculator →Freelancing in Colorado means stacking a flat 4.4% state income tax on top of the 15.3% self-employment tax and federal income tax. The combined marginal rate for freelancers here can exceed 42% on income in the 22% federal bracket. Careful quarterly estimated payment planning is critical to avoid underpayment penalties. This calculator factors in Colorado's state tax and the deductible half of SE tax to give you an accurate picture.
Colorado levies a flat 4.4% state income tax on all taxable income regardless of how much you earn. This makes tax planning straightforward: for every additional dollar you earn, 4.4 cents goes to Colorado. Colorado does not impose local income taxes, so the 4.4% flat rate is the only state-level income tax you owe.
The table below shows what you actually keep at five salary levels in Colorado, accounting for federal tax, FICA, and Colorado's flat 4.4% state tax.
See how Colorado compares to other West states. Each link takes you to the freelance tax calculator landing page for that state.
For a comprehensive breakdown of Colorado’s tax structure, salary comparisons, cost-of-living analysis, and more, visit the full Colorado take-home pay page.