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How Bonuses Are Taxed

Bonuses are classified as supplemental wages by the IRS, which means they're taxed differently than regular salary. While your total annual income determines your actual tax rate when you file your return, bonuses have withholding applied at the time of payment. The most common method employers use is the percentage method, which applies a flat 22% federal withholding rate to bonuses under $1 million. For bonuses exceeding $1 million, the amount over $1 million is taxed at 37%.

In addition to federal income tax, bonuses are subject to Social Security tax (6.2% up to the annual wage base limit) and Medicare tax (1.45% with no limit, plus an additional 0.9% for high earners over $200,000). State income taxes also apply based on your state's rates. Some states have flat tax rates, while others use progressive brackets. After all withholdings, employees typically receive 55-65% of their gross bonus amount, depending on their state tax rate and other deductions.

Percentage Method vs. Aggregate Method

Employers can choose between two methods for calculating bonus withholding. The percentage method treats the bonus as a separate payment and applies the flat 22% federal rate. This method is simpler and more predictable, making it easier for employees to estimate their take-home bonus. Most companies use this method for one-time bonuses, commissions, or year-end performance bonuses paid separately from regular wages.

The aggregate method combines the bonus with regular wages and calculates withholding as if it were a normal paycheck. This can result in higher withholding because the system treats the inflated paycheck as your new regular earnings and withholds at a higher rate. For example, if you normally earn $2,000 per paycheck and receive a $10,000 bonus, the system might withhold as if you earn $12,000 every pay period, pushing you into higher tax brackets. This method is often used when bonuses are paid with regular paychecks rather than separately.

Will You Get Some Money Back?

It's important to understand that withholding is not the same as your final tax liability. The 22% flat rate is simply an upfront withholding amount—your actual tax rate depends on your total annual income, filing status, and deductions. If the 22% withholding rate is higher than your effective tax rate, you'll receive a refund when you file your tax return. If it's lower, you may owe additional taxes.

For example, if you're in the 12% tax bracket, the 22% withholding on your bonus means you overpaid, and the IRS will refund the difference. Conversely, if you're in the 32% bracket, the 22% withholding was insufficient, and you'll owe the additional 10% plus applicable state taxes when filing. This is why financial advisors recommend adjusting your W-4 withholdings or making estimated tax payments if you receive large bonuses and are in higher tax brackets.

Strategies to Maximize Your Bonus

While you can't avoid taxes on your bonus, you can optimize your take-home amount through strategic planning. Consider contributing a portion of your bonus to tax-deferred retirement accounts like a 401(k) or traditional IRA. These contributions reduce your taxable income, potentially saving 22-37% in federal taxes plus state taxes. For 2024, you can contribute up to $23,000 to a 401(k) and $7,000 to an IRA, with catch-up contributions available if you're 50 or older.

Another strategy is timing your bonus payment. If you expect to be in a lower tax bracket next year (due to retirement, career change, or reduced hours), ask your employer to defer the bonus to January. Conversely, if you anticipate higher income next year, receiving your bonus in December might be advantageous. You can also maximize pre-tax deductions like Health Savings Account (HSA) contributions ($4,150 for individuals, $8,300 for families in 2024) or Flexible Spending Account (FSA) contributions to reduce taxable income.

Understanding Your Paycheck After a Bonus

When you receive a bonus, carefully review your paycheck stub to understand the withholdings. Verify that federal withholding is approximately 22% (or 37% for amounts over $1 million), Social Security is 6.2%, and Medicare is 1.45%. Check that state tax matches your state's rate. If you have pre-tax deductions like 401(k) contributions, health insurance premiums, or commuter benefits, these should reduce your taxable bonus amount before taxes are calculated.

If you notice your bonus was taxed using the aggregate method and a much higher percentage was withheld, don't panic. While your take-home amount will be lower than expected, you haven't actually paid more in taxes—you've just had more withheld upfront. You'll likely receive a larger refund when you file your tax return. If you prefer to have more money now rather than a bigger refund later, consider adjusting your W-4 to reduce withholding on future paychecks, but be cautious not to under-withhold and owe penalties.