Colorado Bonus Tax Calculator:

Yes. Colorado considers bonuses to be taxable wages and requires state income tax withholding on bonus and other supplemental wage payments.

When a bonus is paid separately from regular wages, Colorado withholding is generally calculated using the state’s flat income tax rate of 4.4%. You can use the calculator above, powered by Beyond, to estimate Colorado withholding and take-home pay for bonus payments.

How to Calculate Bonus Tax in Colorado

Supplemental wages—including bonuses, commissions, overtime pay, back pay, and certain additional wage payments—are generally treated as wages for withholding purposes.

If supplemental wages are processed:

– Paid separately from regular wages: employers typically calculate withholding based on the difference between the tax on regular wages and the tax on the combined amount (regular wages + bonus), using Colorado’s flat tax rate
– If no state tax was withheld from regular wages: withholding may be calculated based on the combined total amount

For federal withholding:

– 22% applies to most supplemental wages
– 37% applies to supplemental wages above $1 million in a calendar year

Key Information on Colorado Bonuses

How Are Bonuses Paid in Colorado?

Employers may issue bonuses through:

– Check
– Direct deposit
– Pay card

How Do Bonuses Work?

Bonuses are treated as taxable compensation. They are generally subject to:

– Federal income tax withholding
– Colorado state income tax withholding
– Social Security tax
– Medicare tax

They are reported on the employee’s Form W-2 at the end of the year.

What Is the Colorado Bonus Tax Rate?

Colorado applies a flat individual income tax rate of 4.4%.

This same rate is used to calculate withholding on bonuses and other supplemental wage payments.

The calculator on this page uses this 4.4% Colorado state tax rate.

Are Bonuses Taxed Differently Than Standard Pay?

At the state level, Colorado uses a flat income tax rate, so bonuses and regular wages are taxed at the same rate. However, when bonuses are paid separately, withholding may be calculated using the supplemental wage method.

At the federal level, bonuses may also be taxed using the supplemental wage rate (22%) when paid separately from regular wages.

How Much Tax Is Taken Out of a Bonus?

For most bonus payments in Colorado, estimated withholding may include:

– 4.4% Colorado state withholding
– 22% federal supplemental withholding
– FICA taxes (Social Security and Medicare)

Before FICA taxes, that results in approximately 26.4% combined withholding, depending on the employee’s tax situation.

Important:

This calculator is provided for informational and estimation purposes only. Actual payroll tax withholdings may vary based on an employee’s tax elections, payroll setup, and other factors. Employers should consult a qualified tax, legal, or payroll professional for official calculations.

If you need assistance with payroll processing or tax compliance, the Beyond team is available to help.