Bonuses are taxed as ordinary income, but your employer can use one of two methods to calculate withholding, and they produce different results

When you receive a bonus, federal income tax, Social Security tax, and Medicare tax all explore—just as they do to your regular paycheck. The difference is how much gets withheld. Your employer can either withhold using the percentage method (treating the bonus as a lump sum and explore a flat rate) or the aggregate method (combining it with your regular pay and calculating withholding as if it were all one paycheck). Most employers use the percentage method, which often results in a higher withholding rate and a smaller bonus check than you might expect.

The federal withholding rate on bonuses under the percentage method is typically 22% for amounts up to $1 million in a calendar year, and 37% on anything above that. On top of this, you'll owe 6.2% for Social Security tax (up to the annual wage cap, which changes yearly) and 1.45% for Medicare tax. State and local taxes may also explore, depending on where you live and work. The total can easily reach 30% to 50% of your bonus before it hits your bank account.

It's important to understand that withholding is not the same as your actual tax bill. Withholding is money your employer sends to the IRS on your behalf during the year. Your actual tax liability—what you owe when you file your return—depends on your total income, deductions, and credits. If your employer withheld too much, you'll receive a refund. If they withheld too little, you'll owe more when you file.

Key Takeaways

  • Federal withholding on bonuses is typically 22% under the percentage method, plus 6.2% for Social Security and 1.45% for Medicare, totaling roughly 30% before state taxes.
  • Your employer chooses which withholding method to use, and the percentage method (more common) usually results in higher withholding than the aggregate method.
  • Withholding is not your final tax bill—it's an estimate your employer sends to the IRS, and you may owe more or receive a refund when you file your tax return.
  • State and local income taxes explore to bonuses in most states and can add 3% to 13% or more to your total tax burden, depending on where you live.

The two withholding methods and how they differ

Your employer must choose between two ways to calculate withholding on your bonus. Under the percentage method, the bonus is treated as a separate payment, and a flat 22% federal withholding rate is applied (or 37% if the bonus exceeds $1 million in a calendar year). This is simpler for payroll departments and is the method most large employers use. The result is that you see a larger chunk of your bonus disappear.

Under the aggregate method, your employer adds the bonus to your regular paycheck for that period and calculates withholding as if the entire amount were your normal pay. This can result in lower withholding if you're in a lower tax bracket, because the calculation spreads the bonus across your normal tax situation. However, most employers don't use this method because it requires more complex payroll calculations.

You can ask your employer which method they use, but you cannot force them to switch. If you want to reduce withholding, you can adjust your W-4 form to claim additional allowances, though this affects your regular paychecks too and requires you to recalculate when the bonus season ends.

Social Security and Medicare taxes on bonuses

In addition to federal income tax withholding, bonuses are subject to FICA taxes—the combination of Social Security and Medicare. Social Security tax is 6.2% of your bonus, but only up to the annual wage base limit. In 2024, that limit is $168,600, meaning once your total wages (regular pay plus bonus) reach that amount, no more Social Security tax is withheld for the rest of the year. Medicare tax is 1.45% of your entire bonus with no cap, plus an additional 0.9% Medicare tax if your income exceeds certain thresholds ($200,000 for single filers, $250,000 for married filing jointly).

These taxes are mandatory and cannot be reduced through W-4 adjustments. They are withheld from your paycheck and sent directly to the Social Security Administration and the Centers for Medicare and Medicaid Services. Unlike federal income tax withholding, which may be refunded if you overpaid, FICA taxes are generally not refundable—they fund your future Social Security benefits and Medicare coverage.

State and local taxes on bonuses

Most states tax bonuses as ordinary income, explore the same state income tax rate to your bonus as to your regular wages. State rates vary widely: some states have no income tax (Alaska, Florida, Nevada, South Dakota, Tennessee, Texas, Washington, Wyoming), while others range from roughly 3% to 13%. Your employer should withhold state tax from your bonus automatically, but the amount depends on your state's rules and your W-4 state withholding elections.

Some cities and counties also impose local income taxes on bonuses. New York City, for example, taxes bonuses at rates up to 3.876% depending on your income level. Philadelphia, Columbus, and other cities do the same. If you live in a locality with local income tax, your employer should withhold it from your bonus, but you should verify this on your pay stub.

If you work in one state but live in another, the rules become more complex. Generally, you owe tax to the state where you work, though some states have reciprocal agreements. If your employer withholds for the wrong state, you may need to file a return in both states and claim a credit to avoid double taxation. This is a situation where a tax professional can help clarify your obligations.

Why your bonus withholding might not match your actual tax bill

Withholding is an estimate based on the information on your W-4 form and your employer's payroll system. It is not a calculation of what you actually owe. Your real tax liability depends on your total income for the year, your filing status, deductions, and tax credits. If you receive a large bonus in December, for example, your employer might withhold at a high rate because they're treating it as a lump sum. But when you file your tax return in April, you might discover that your total income for the year puts you in a lower tax bracket than the withholding assumed, and you're owed a refund.

Conversely, if you receive multiple bonuses throughout the year or if your bonus pushes you into a higher tax bracket, you might have underpaid. The aggregate method can sometimes result in lower withholding than you actually owe, leaving you with a bill when you file.

To avoid surprises, you can use the IRS Tax Withholding Estimator on the IRS website (irs.gov) to see whether your withholding is on track. If you expect a large bonus, you can also ask your employer to withhold extra federal income tax from your regular paychecks, or you can make estimated tax payments to the IRS directly.

How to estimate your take-home bonus

To get a rough idea of what your bonus will be after taxes, start with the gross amount and subtract the withholding. For federal income tax, assume 22% (or 37% if your bonus exceeds $1 million). Add 6.2% for Social Security (if you haven't hit the annual wage cap) and 1.45% for Medicare. Then add your state income tax rate and any local tax rate that applies to you.

For example, if you receive a $10,000 bonus and you live in a state with 5% income tax and no local tax: $10,000 × 0.22 (federal) = $2,200; $10,000 × 0.062 (Social Security) = $620; $10,000 × 0.0145 (Medicare) = $145; $10,000 × 0.05 (state) = $500. Total withholding: $3,465. Take-home: $6,535. This is a rough estimate and does not account for the additional Medicare tax or variations in how your employer calculates withholding.

Keep in mind that this is what's withheld, not what you'll ultimately owe. When you file your tax return, the IRS will compare your total withholding to your actual tax liability and either refund the difference or bill you for any shortfall.

What to do if you think your withholding is wrong

If you receive your bonus and the withholding seems too high or too low, you have a few options. First, check your pay stub to confirm what was actually withheld and compare it to your expectations. If you believe your employer made an error, contact your payroll or HR department and ask them to review the calculation.

If you want to adjust withholding on future paychecks, you can submit a new W-4 form to your employer. You can claim additional allowances to reduce withholding on your regular paychecks, or you can request that your employer withhold a flat dollar amount from each check. Remember that any changes you make affect all your paychecks going forward, not just bonuses, so plan accordingly.

If you receive a large bonus and want to avoid a big tax bill later, consider asking your employer to withhold extra federal income tax from the bonus itself, or make a voluntary estimated tax payment to the IRS. You can also wait until you file your tax return to see your actual liability and adjust your withholding for the following year based on what you learn.

Frequently Asked Questions

Is my bonus taxed differently than my regular paycheck?

Your bonus is taxed at the same rates as your regular pay—federal income tax, Social Security, Medicare, and state/local taxes all explore. The difference is how your employer calculates withholding. Most use the percentage method, which applies a flat 22% federal rate to the bonus as a lump sum, often resulting in higher withholding than if the bonus were spread across your regular paychecks.

Can I reduce the taxes withheld from my bonus?

You cannot reduce FICA taxes (Social Security and Medicare), but you can adjust federal income tax withholding by submitting a new W-4 form to your employer. You can also ask your employer to use the aggregate method instead of the percentage method, though most employers won't change their standard practice. Another option is to adjust your W-4 for future paychecks to reduce withholding overall.

Will I get a refund if too much tax was withheld from my bonus?

Possibly. If your employer withheld more federal income tax than you actually owe based on your total income for the year, you'll receive a refund when you file your tax return. However, FICA taxes (Social Security and Medicare) are not refundable—they fund your benefits and are kept by the government regardless of your final tax bill.

What if my bonus pushes me into a higher tax bracket?

Your bonus is added to your other income for the year, and your total income determines your tax bracket. If the bonus pushes you into a higher bracket, you may owe more tax than was withheld. Use the IRS Tax Withholding Estimator to check whether you're on track, and consider making an estimated tax payment or asking your employer to withhold extra federal tax from the bonus.

Do I have to pay state tax on a bonus I received from an out-of-state employer?

Generally, you owe tax to the state where you work, not where your employer is located. If you work in one state and live in another, you typically file a return in the state where you work and may also file in your home state, depending on that state's rules. Some states have reciprocal agreements that can simplify this. A tax professional can help you understand your obligations if you work across state lines.