COLORADO BONUS TAX · TAX YEAR 2026
Colorado bonus tax calculator
Colorado has no bonus tax rate: a bonus is added to the paycheck's wages, and Colorado's withholding formula takes 4.4% of it. On a $10,000 bonus with $75,000 of wages, a single filer has $440 of Colorado tax withheld, plus $2,200 of federal income tax and $765 of Social Security and Medicare, and takes home $6,595. The bonus adds $440 to the year's Colorado tax, so withholding matches the tax.
Your bonus after tax
- Take-home bonus
- $6,595.00
- Federal income tax
- $2,200.00
- Social Security and Medicare
- $765.00
- Colorado tax
- $440.00
Colorado tax for the year
- Withheld from the bonus
- $440.00
- Added by the bonus
- $440.00
- Difference
- $0.00
Colorado withholding by bonus size
What a single filer with $75,000 of other wages has withheld from bonuses of different sizes, and takes home.
| Bonus | Federal | Social Security and Medicare | State | Take-home |
|---|---|---|---|---|
| $1,000 | $220 | $77 | $44 | $660 |
| $5,000 | $1,100 | $383 | $220 | $3,298 |
| $10,000 | $2,200 | $765 | $440 | $6,595 |
| $25,000 | $5,500 | $1,913 | $1,100 | $16,488 |
| $50,000 | $11,000 | $3,825 | $2,200 | $32,975 |
Colorado tax withheld vs. owed
The Colorado tax withheld from a $10,000 bonus against the tax the bonus adds to a single filer's year. Over-withholding comes back in your refund; under-withholding is due when you file.
| Annual wages | Withheld | Tax added | Difference |
|---|---|---|---|
| $40,000 | $440 | $440 | $0 |
| $75,000 | $440 | $440 | $0 |
| $150,000 | $440 | $440 | $0 |
| $300,000 | $440 | $440 | $0 |
Colorado bonus tax questions
What is the Colorado bonus tax rate for 2026?
Colorado has no bonus tax rate: a bonus is added to the paycheck's wages, and Colorado's withholding formula takes 4.4% of it. On a $10,000 bonus that is $440 of Colorado tax.
Is a bonus taxed more than regular pay in Colorado?
No. When you file, a bonus is taxed at the same Colorado rates as the rest of your wages; only the withholding differs. For a single filer with $75,000 of wages, a $10,000 bonus adds $440 to the year's Colorado tax and has $440 withheld, so withholding matches the tax.
How does Colorado's withholding formula treat a bonus?
Colorado's worksheet, DR 1098, annualizes the paycheck's wages with the bonus included, subtracts the annual deduction and withholds 4.4% of the rest. Once regular pay already passes the deduction, each bonus dollar adds 4.4%: $440 on a $10,000 bonus.
What the calculator leaves out
- Withholding is the bonus times 4.40%, the rate DR 1098 applies to annualized wages above the $5,500 deduction; a pay period whose annualized wages stay below the deduction is withheld at less.
- Colorado has no bonus rate; DR 1098 withholds 4.40% of annualized wages above the deduction, bonus included.
Federal income tax is withheld at the 22% supplemental rate, 37% on supplemental pay above $1,000,000 in a year. Social Security and Medicare treat the bonus as the year's last pay, so wages above $184,500 owe no more Social Security. Filing status changes only the annual comparison.