Colorado has a flat income tax (4.4% flat). On $100K, you keep $74,725 (25.3% effective rate), ranking #35/50 states. Cost-adjusted: #40.
Pre-filled with Colorado tax rates. Adjust salary and filing status.
Colorado uses a flat income tax rate of 4.4%, meaning all income is taxed at the same rate regardless of how much you earn. This simplicity is valued by taxpayers and businesses alike.
Colorado’s sales tax adds to the overall tax burden for residents. When evaluating total taxes, consider income, sales, and property taxes together.
Property tax rates in Colorado vary by county and municipality. The overall property tax burden should be considered alongside income taxes when evaluating total cost.
Colorado has a cost of living roughly in line with the national average (index 105), meaning your take-home pay translates fairly directly to purchasing power.
How does Colorado’s tax burden change as your income rises? With a flat tax, the state rate is constant, but the overall effective rate still rises because federal brackets are progressive.
| Gross Salary | Federal Tax | FICA | State Tax | Take-Home | Effective Rate | Monthly |
|---|---|---|---|---|---|---|
| $40K | $2,620 | $3,060 | $1,760 | $32,560 | 18.6% | $2,713 |
| $50K | $3,820 | $3,825 | $2,200 | $40,155 | 19.7% | $3,346 |
| $60K | $5,020 | $4,590 | $2,640 | $47,750 | 20.4% | $3,979 |
| $75K | $7,725 | $5,738 | $3,300 | $58,238 | 22.4% | $4,853 |
| $100K | $13,225 | $7,650 | $4,400 | $74,725 | 25.3% | $6,227 |
| $120K | $17,625 | $9,180 | $5,280 | $87,915 | 26.7% | $7,326 |
| $150K | $24,774 | $11,475 | $6,600 | $107,151 | 28.6% | $8,929 |
| $200K | $36,774 | $14,339 | $8,800 | $140,087 | 30.0% | $11,674 |
The median household income in Colorado is $68,000, which translates to $53,621/year ($4,468/month) take-home after all taxes. This is near the national median.
After cost-of-living adjustment, the median income’s purchasing power in Colorado is equivalent to $51,068 in an average-cost area. Higher local costs erode some of the purchasing power.
Colorado ranks #35/50 for raw take-home pay and #40/50 for cost-adjusted purchasing power at $100K. The 5-position shift between raw and cost-adjusted ranking reflects the above-average cost of living, which reduces what your take-home actually buys.
At $100K in Colorado, you keep $74,725. The best state (Alaska) gives $79,125, and the worst (California) gives $70,480. Colorado is mid-pack, $4,400 behind the leader.
Colorado has a flat income tax structure with rates of 4.4% flat. On $100K, you’ll pay approximately $4,400 in state income tax, bringing your total take-home to $74,725 after all federal and state taxes.
Filing as married filing jointly on $100K changes take-home from $74,725 (single) to $80,310 (married). The $5,585 marriage bonus comes from the doubled standard deduction ($32,200 vs $16,100) and wider lower brackets.
Colorado does not impose local income taxes, so the state rate is your only state-level income tax.
How does Colorado stack up against other states in the West?