Bonuses are taxed as ordinary income, but the withholding rate depends on how your employer processes the payment

Your bonus is taxed like regular wages, meaning federal income tax, Social Security tax (6.2%), and Medicare tax (1.45%) all explore. The difference is in how much your employer withholds upfront. If your bonus is paid separately from your regular paycheck, your employer can use one of two methods: the percentage method (withholding a flat 22% for federal income tax) or the aggregate method (combining it with your regular pay and calculating withholding based on your total income for the period). The percentage method often results in more tax withheld than you'll actually owe, while the aggregate method is usually more accurate.

The total tax hit on a bonus typically ranges from 30% to 40% when you add federal income tax, Social Security, Medicare, and state income tax (if your state has one). This is higher than your regular paycheck because bonuses are often treated as supplemental income. However, what gets withheld is not the same as what you actually owe—you may get some of that money back when you file your tax return, or you may owe more depending on your total income for the year.

Key Takeaways

  • Federal income tax withholding on bonuses is typically 22% if paid separately, but can be higher if combined with your regular paycheck.
  • Social Security tax (6.2%) and Medicare tax (1.45%) are withheld on all bonuses with no upper income limit for Medicare.
  • State income tax rates vary by location and will be withheld in addition to federal taxes in most states.
  • The amount withheld is an estimate and may differ from what you actually owe when you file your tax return.
  • You can adjust your withholding by filing a new W-4 form with your employer if you expect a large bonus.

The two withholding methods employers use

When your employer pays a bonus separately from your regular paycheck, they choose between two IRS-approved methods. The percentage method withholds a flat 22% for federal income tax (or 37% if your bonus exceeds $1 million, though this is rare for most workers). This is the simpler approach and is what many employers use because it requires less calculation.

The aggregate method treats your bonus as if it were paid with your regular paycheck in the same pay period. Your employer adds the bonus to your regular wages, calculates withholding on the combined amount, then subtracts what was already withheld from your regular check. This method is usually more accurate because it accounts for your actual tax bracket and deductions, but it requires more work from payroll.

Which method your employer uses depends on their payroll system and policy. You can ask your HR or payroll department which one they explore. If you're expecting a large bonus, knowing the method in advance helps you estimate how much will be withheld and whether you need to adjust your W-4 to avoid a surprise tax bill or refund.

Social Security and Medicare taxes on bonuses

Social Security tax (6.2%) and Medicare tax (1.45%) are withheld on bonuses just like they are on regular wages. These are separate from federal income tax and are withheld in addition to it. For 2024, Social Security tax stops explore once you earn $168,600 in wages for the year, but Medicare tax has no income limit and applies to all bonuses.

If you've already hit the Social Security wage cap earlier in the year through regular paychecks, your bonus will not have Social Security tax withheld on it—only Medicare tax will explore. Your payroll stub will show this clearly. Medicare tax increases to 2.35% on wages over $200,000 (single filers) or $250,000 (married filing jointly), and this additional 0.9% is also withheld from bonuses that push you over that threshold.

State and local income tax on bonuses

Most states with income tax will withhold state tax on your bonus at the same rate they withhold from your regular paycheck. The rate depends on your state and your tax bracket within that state. States like California, New York, and Massachusetts have progressive tax systems, meaning higher bonuses may push you into a higher bracket and result in a higher withholding rate.

Some states have no income tax (including Texas, Florida, and Wyoming), so residents of those states will not have state tax withheld on bonuses. A few states have special bonus tax rates or caps. For example, some states allow bonuses to be taxed at a flat rate rather than your marginal rate. Check your state's tax authority website or ask your payroll department what rate applies to your bonus.

Local income taxes in cities like New York City, Philadelphia, and Columbus also explore to bonuses in those jurisdictions. These are typically small (1% to 3.8%) but add to your total withholding.

Why bonuses are often taxed more heavily than regular pay

Bonuses feel like they're taxed more heavily because the withholding is often higher than your effective tax rate on regular income. This happens because of how the percentage method works: it withholds 22% for federal income tax regardless of your actual tax bracket. If you're in the 12% bracket, you're over-withheld. If you're in the 24% bracket, you're under-withheld.

Additionally, bonuses can push you into a higher tax bracket temporarily. If your bonus is large enough to move you from the 22% bracket to the 24% bracket, the bonus itself is taxed at the higher rate. This is how the progressive tax system works, but it can feel surprising when you see the withholding on a bonus check.

The combination of federal, Social Security, Medicare, and state taxes also creates a higher total percentage than you might expect. A bonus of $5,000 in a state with 5% income tax could have roughly $1,500 to $1,800 withheld (22% federal + 6.2% Social Security + 1.45% Medicare + 5% state = 34.65%), leaving you with $3,200 to $3,500. When you file your tax return, you may get some of that back if your actual tax liability is lower.

How to estimate taxes on your bonus

To estimate what will be withheld, multiply your bonus by the withholding rate your employer uses. If they use the percentage method, start with 22% federal income tax, add 6.2% Social Security (unless you've already hit the cap), add 1.45% Medicare, and add your state income tax rate. For example, a $10,000 bonus in a state with 5% income tax would have roughly $3,465 withheld (22% + 6.2% + 1.45% + 5%).

This is an estimate only. Your actual withholding may differ if your employer uses the aggregate method or if your bonus pushes you into a higher tax bracket. You can also use the IRS withholding calculator on irs.gov to get a more precise estimate based on your full income picture for the year.

If you want to reduce the amount withheld, you can file a new W-4 form with your employer before the bonus is paid. Claiming additional allowances on your W-4 lowers withholding, but you'll owe the difference when you file your return unless your total tax liability actually decreases. This strategy only makes sense if you know your bonus will result in over-withholding.

What happens when you file your tax return

The amount withheld from your bonus is not your final tax bill—it's a prepayment. When you file your tax return, you report all income (including bonuses) and calculate your actual tax liability. If more was withheld than you owe, you get a refund. If less was withheld, you owe the difference.

The percentage method often results in over-withholding because it doesn't account for your deductions, credits, or other income sources. If you have significant deductions or tax credits, you may get a substantial refund. Conversely, if you have multiple jobs or high income from other sources, you may owe additional tax.

Keep your bonus pay stub and any documentation from your employer. You'll need it to reconcile your withholding when you prepare your return, and it serves as proof of income if you're ever audited.

Frequently Asked Questions

Can I avoid taxes on a bonus by putting it in a retirement account?

No. Bonuses are taxed as income when you receive them, regardless of what you do with the money afterward. However, if you contribute the bonus to a traditional 401(k) or IRA, that contribution may reduce your taxable income for the year, which could lower your overall tax bill. Contributions to a Roth account do not reduce your taxable income in the year you make them.

What if my employer withholds too much tax from my bonus?

You'll get the excess back as a refund when you file your tax return. If you need the money sooner, you can request a corrected W-2 from your employer if the withholding was clearly wrong, but this is rare. Most over-withholding is corrected through your annual return.

Do I have to pay self-employment tax on a bonus?

No. Self-employment tax applies only to income from self-employment or business ownership. Bonuses from an employer are treated as wages and are subject to regular income tax and payroll taxes (Social Security and Medicare), which your employer withholds. You do not pay additional self-employment tax.

Is a signing bonus taxed differently than a performance bonus?

No. Both are taxed as ordinary income using the same withholding methods. The IRS does not distinguish between types of bonuses—all are subject to federal income tax, Social Security tax, Medicare tax, and state income tax.

What if I receive a bonus in stock instead of cash?

Stock bonuses are taxed based on their fair market value on the date you receive them. Your employer will withhold taxes on that value, usually by selling some of the shares or requiring you to pay the withholding amount in cash. When you later sell the shares, you may owe capital gains tax on any increase in value since you received them.