Colorado Tax Brackets Compared to Other States (2026)
Colorado ranks joint 21st of 51 on state income tax at a $100,000 salary: the state layer takes $4,400, an effective 4.40%, against $0 in Alaska and $8,192 in Oregon. Every figure below is calculated with the 2026 rules in the same engine that runs the Colorado salary calculator.
Where Colorado sits in the state-by-state ranking
| Rank | State | State tax on $100,000 | Effective state rate | Take-home pay |
|---|---|---|---|---|
| 17 | Mississippi | $3,600 | 3.60% | take-home pay |
| 18 | North Carolina | $3,990 | 3.99% | take-home pay |
| 19 | New Jersey | $4,180 | 4.18% | take-home pay |
| 20 | Michigan | $4,250 | 4.25% | take-home pay |
| 21 | Arkansas | $4,400 | 4.40% | take-home pay |
| 22 | Colorado | $4,400 | 4.40% | take-home pay |
| 23 | Vermont | $4,490 | 4.49% | take-home pay |
| 24 | Utah | $4,650 | 4.65% | take-home pay |
| 25 | Connecticut | $4,750 | 4.75% | take-home pay |
| 26 | Oklahoma | $4,750 | 4.75% | take-home pay |
| 27 | Missouri | $4,800 | 4.80% | take-home pay |
Rank 1 is the lowest state income tax burden of the 51 jurisdictions modelled, rank 51 the highest, and states taking the same amount share a rank. The table shows the states immediately around Colorado plus its position against the two extremes; the full ranking of all 51 is on the comparison index.
Colorado's position at other salary levels, on the same ranking: $50,000: 52nd, $2,200 · $150,000: 12th, $6,600 · $200,000: 10th, $8,800. A state can be cheap at one income and ordinary at another, because graduated brackets bite only above their thresholds — which is why the ranking on this page is quoted at a stated salary rather than as a permanent verdict.
What Colorado takes at each salary
| Gross salary | State income tax | Effective state rate | All deductions | Net per year | Net per month |
|---|---|---|---|---|---|
| $50,000 | $2,200 | 4.40% | $9,845 | $40,155 | $3,346 |
| $75,000 | $3,300 | 4.40% | $16,708 | $58,293 | $4,858 |
| $100,000 | $4,400 | 4.40% | $25,220 | $74,780 | $6,232 |
| $150,000 | $6,600 | 4.40% | $42,809 | $107,191 | $8,933 |
| $200,000 | $8,800 | 4.40% | $59,873 | $140,127 | $11,677 |
The "all deductions" column is federal income tax, the state layer, Social Security and Medicare together. The state-only column is what this page is about: $4,400 at $100,000, rising to $8,800 at $200,000 — a state effective rate of 4.40% at the higher salary.
Colorado against the states it is usually compared with
| State | State tax on $100,000 | Effective state rate | Difference vs Colorado |
|---|---|---|---|
| Alaska | $0 | 0.00% | $4,400 less per year |
| Utah | $4,650 | 4.65% | $250 more per year |
| New Mexico | $4,900 | 4.90% | $500 more per year |
| Oregon | $8,192 | 8.19% | $3,792 more per year |
How Colorado taxes income
Colorado taxes wage income, so the numbers on this page carry a state layer on top of the federal one. The state layer depends on how the income is split across Colorado's own brackets, which is why the same salary costs a different amount here than in a flat-rate state: the effective state rate of 4.40% at $100,000 is an average across every slice of pay, while the next slice of income is charged at about 4.4%.
Two rates matter and they are not the same number. The effective rate of 4.40% is what the state layer costs across the whole salary; the marginal rate in Colorado is about 4.4% — always the higher of the two when a state levies tax, because the lower slices have already been taxed more cheaply. A raise is priced at the marginal rate, not the average one.
Figures on this page cover the 2026 and 2027 tax years and come from the same calculation engine as the calculator itself, so the comparison here and the take-home figure on Colorado's own pages cannot drift apart.
Compare Colorado further
- Colorado vs Alaska on state income tax
- Colorado vs Utah on state income tax
- Colorado vs New Mexico on state income tax
- Colorado vs Oregon on state income tax
- State income tax comparison: all 51 jurisdictions ranked
- Colorado salary after tax at every salary level
- Colorado salary calculator
Where these figures come from
Every number on this page is computed by the TaxYourSalary tax engine from published United States rates — it is not an estimate, an average, or a figure carried over from another salary.
| Rates published by | Internal Revenue Service (IRS) |
|---|---|
| Tax year applied | 2026 |
| What the source covers | Federal brackets and the standard deduction (Revenue Procedure 2025-32). Social Security and Medicare come from the Social Security Administration; each state's schedule comes from that state's own revenue department. |
| Figures last compared | 19 September 2026 |
| State authority | Colorado Department of Revenue |
| State income tax | Colorado levies a personal income tax. The figures on this page cover federal income tax, Social Security and Medicare, and exclude state and local tax. |
Spotted a figure that disagrees with the source? Tell us and we will correct it — see our editorial policy.
Colorado tax questions
Does Colorado have a state income tax?
Yes. Colorado levies a personal income tax on wages, with a headline top rate of about 4.40%. On a $100,000 salary the state layer takes $4,400, or 4.40% of gross.
How much state income tax do you pay on $100,000 in Colorado?
$4,400 — an effective state rate of 4.40%. Total deductions including federal income tax, Social Security and Medicare come to $25,220, leaving $74,780 a year, about $6,232 a month.
How does Colorado compare with the lowest-tax state?
Alaska takes $0 in state tax on the same $100,000 salary, so a worker in Colorado pays $4,400 more than in Alaska. Colorado ranks joint 21st of 51 on state income tax at this salary.
How much does a $100,000 salary leave in Colorado?
$74,780 a year after federal income tax, the state layer, Social Security and Medicare — an all-in deduction rate of 25.22%. The highest-taxing state, Oregon, would leave $70,988 on the same salary, and Colorado keeps $3,792 more than that.
What rate does Colorado charge on the next dollar earned?
About 4.4% at a $100,000 salary, against an effective state rate of 4.40%. The marginal rate is the higher of the two because the lower slices of income were taxed more cheaply; it is the rate that decides what a pay rise is worth in Colorado.