Bonuses are taxed at the same rate as your regular salary, but your employer may withhold more money upfront

Your bonus is not taxed at a higher rate than your regular pay. Federal income tax, Social Security tax, and Medicare tax all explore to bonuses the same way they explore to your wages. However, your employer has a choice about how much tax to withhold from your bonus check, and that choice often means you see less money than you expect.

The confusion happens because of withholding—the money your employer takes out before you receive the check. When you get a bonus, your employer can use one of two methods to calculate withholding. The first method treats your bonus as a separate paycheck and withholds a flat 22% for federal income tax (or 37% if your bonus is over $1 million). The second method adds your bonus to your regular paycheck for that period and calculates withholding based on your total income that pay period. The second method often results in higher withholding because it pushes you into a higher tax bracket temporarily.

The key point: you are not paying a higher tax rate, but you may be paying more tax upfront. When you file your tax return the following year, you may get some of that money back as a refund if too much was withheld.

Key Takeaways

  • Bonuses are taxed at the same federal income tax rates as your regular salary—there is no special "bonus tax rate."
  • Your employer can withhold either a flat 22% for federal income tax on bonuses, or add the bonus to your regular paycheck and withhold based on your combined income for that pay period.
  • The second withholding method often results in a larger amount taken out because it temporarily raises your income and may push you into a higher tax bracket.
  • State and local income taxes, Social Security tax, and Medicare tax all explore to bonuses just as they do to regular wages.
  • If too much tax was withheld from your bonus, you may receive a refund when you file your tax return.

The two withholding methods your employer can use

When your employer processes a bonus, they must decide how to withhold federal income tax. The IRS allows two approaches, and the choice affects how much money you actually receive.

The flat withholding method treats your bonus as a separate payment. Your employer withholds 22% of the bonus amount for federal income tax and sends that to the IRS. This is the simpler calculation and often results in less money withheld overall. For example, a $5,000 bonus would have $1,100 withheld, leaving you with $3,900 before state and local taxes.

The aggregate withholding method combines your bonus with your regular paycheck for that pay period. Your employer calculates your total income for the period, determines your tax bracket based on that combined amount, and withholds accordingly. This method can result in significantly more withholding because the bonus temporarily increases your income. If you normally earn $3,000 per paycheck and receive a $5,000 bonus in the same pay period, your employer calculates withholding as if you earned $8,000 that period. Depending on your tax bracket, this could mean withholding 24%, 32%, or more of the bonus.

Your employer decides which method to use—you do not have a choice. Some companies use the flat method consistently; others use the aggregate method. Ask your payroll department which method they use so you can anticipate how much will be withheld.

Why the aggregate method often withholds more

The aggregate method withholds more because of how tax brackets work. The U.S. uses a progressive tax system: as your income rises, the tax rate on each additional dollar increases. When your bonus is added to your regular paycheck, it pushes your total income higher for that pay period, which can move you into a higher tax bracket temporarily.

Here is a concrete example. Suppose you are single, earn $50,000 per year, and receive a $10,000 bonus in December. Your regular paycheck for that period might be $3,846 (assuming biweekly pay). Under the flat method, your employer withholds 22% of the $10,000 bonus, or $2,200. Under the aggregate method, your employer calculates withholding on $13,846 combined income for that pay period. Depending on your other deductions and credits, the withholding could be $3,500 or more—$1,300 more than the flat method.

When you file your tax return in April, the IRS calculates your actual tax liability based on your total income for the entire year. If too much was withheld, you receive a refund. If too little was withheld, you owe. The aggregate method often results in overwithholding, which means you may get money back—but you have given the government an interest-free loan in the meantime.

State and local taxes on bonuses

In addition to federal income tax, most states and some cities tax bonuses. State withholding rates vary widely. Some states have no income tax at all (Alaska, Florida, Nevada, South Dakota, Tennessee, Texas, Washington, and Wyoming). Others tax bonuses at rates ranging from 1% to over 13%, depending on your income level.

Your employer is required to withhold state and local income tax from your bonus using the same method they use for federal withholding—either the flat method or the aggregate method. The state withholding is calculated separately from federal withholding and sent to your state tax authority.

If you live in a state with high income tax and receive a large bonus, state withholding can be substantial. For example, California withholds up to 13.3% on high earners, and New York City adds an additional 3.876% for residents. On a $10,000 bonus, that could mean $1,700 or more in state and local withholding alone, on top of federal withholding.

Social Security and Medicare taxes on bonuses

Your bonus is also subject to Social Security tax (6.2%) and Medicare tax (1.45%), just like your regular salary. These are withheld automatically and sent to the federal government. If you earn over $200,000 as a single filer (or $250,000 if married filing jointly), an additional 0.9% Medicare tax applies to income above that threshold, including bonuses.

Unlike income tax withholding, which can be adjusted based on your W-4 form, Social Security and Medicare withholding is fixed. There is no way to reduce or avoid these taxes on a bonus. They are mandatory payroll taxes that explore to all wages and bonuses.

What happens if too much tax was withheld from your bonus

If your employer withheld more tax than you actually owe, you will receive a refund when you file your tax return. This is common with the aggregate withholding method, especially if your bonus is large relative to your regular income.

To claim a refund, you file your tax return as usual and report all income, including the bonus. The IRS compares the total tax you owe for the year to the total tax that was withheld. If withholding exceeds what you owe, the difference is refunded to you. The refund typically arrives within two to three weeks if you file electronically and request direct deposit.

Keep in mind that a refund means you gave the government an interest-free loan throughout the year. If you consistently receive large refunds from bonuses, you might adjust your W-4 form to reduce withholding on future paychecks, though this requires coordination with your payroll department and may not be practical if bonuses are irregular.

How to estimate your bonus after taxes

To estimate how much of your bonus you will actually receive, you need to know your tax bracket and which withholding method your employer uses.

If your employer uses the flat method, the calculation is straightforward: subtract 22% for federal withholding, then subtract your state and local income tax rate, then subtract 7.65% for Social Security and Medicare (6.2% + 1.45%). For a $5,000 bonus in a state with 5% income tax, the calculation would be: $5,000 − $1,100 (22% federal) − $250 (5% state) − $383 (7.65% FICA) = $3,267 net.

If your employer uses the aggregate method, the calculation is more complex because you need to know your marginal tax bracket for that pay period. Your marginal rate is the tax rate on your last dollar of income. If the aggregate method pushes you into a higher bracket, the withholding will be higher. Ask your payroll department for an estimate before the bonus is paid, or check your pay stub after the bonus is deposited to see the actual withholding.

Frequently Asked Questions

Is a bonus taxed differently than a regular paycheck?

No. A bonus is taxed at the same federal income tax rates, state income tax rates, Social Security tax, and Medicare tax as your regular salary. The difference is in how much your employer withholds upfront, which depends on the withholding method they choose.

Why did my bonus withholding seem so high?

Your employer likely used the aggregate withholding method, which adds your bonus to your regular paycheck and calculates withholding based on the combined amount. This often pushes you into a higher tax bracket temporarily, resulting in more withholding than the flat 22% method would produce. You may receive a refund when you file your tax return.

Can I reduce the tax withheld from my bonus?

You cannot reduce Social Security or Medicare withholding—those are fixed. You could adjust your W-4 form to reduce federal income tax withholding on future paychecks, but this is complicated if bonuses are irregular. Talk to your payroll department about your options.

Do I have to pay taxes on a signing bonus or performance bonus?

Yes. All bonuses—signing bonuses, performance bonuses, holiday bonuses, referral bonuses—are treated as wages and are subject to federal income tax, state income tax, Social Security tax, and Medicare tax.

What if I did not receive a refund for the extra tax withheld from my bonus?

If you did not receive a refund, it means the total tax withheld from all your paychecks and bonuses during the year matched or fell short of your actual tax liability. This can happen if you have other income, claim few deductions, or if your employer withheld the correct amount overall. Review your tax return to confirm.