Colorado charges 4.4% flat state income tax. Use the overtime tax calculator pre-loaded with Colorado rates.
Open Overtime Tax Calculator →When you work overtime in Colorado, each extra hour is subject to federal supplemental withholding (typically 22%), FICA (7.65%), and Colorado's flat 4.4% state tax. Without local income taxes, the state rate is the only additional layer. The overtime calculator shows you the real after-tax value of overtime work with Colorado rates, so you can decide whether extra hours are worth it.
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 overtime 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.