Yes, signing bonuses are taxed as ordinary income

A signing bonus is treated the same way as your regular salary by the IRS. Your employer withholds federal income tax, Social Security tax, and Medicare tax from the bonus check, just as they do from your paycheck. The bonus counts as wages for the year you receive it, and you report it on your tax return.

The amount withheld depends on how your employer processes the bonus. Some companies add it to your regular paycheck and withhold based on your normal tax bracket. Others treat it as a separate payment and withhold at a flat rate, often 22 percent for federal income tax (or 37 percent if the bonus exceeds $1 million). Neither method changes what you ultimately owe — only when the money leaves your account.

If too much or too little tax was withheld, you will see the difference when you file your tax return in the following year. The IRS does not care how your employer split the withholding; they care only that the total tax on all your income for the year is correct.

Key Takeaways

  • Signing bonuses are taxed as regular income at your ordinary tax rate, not at a special rate.
  • Your employer withholds federal, Social Security, and Medicare taxes from the bonus before you receive it.
  • The withholding method your employer uses (flat rate or regular payroll) does not change your final tax bill, only the timing of the deduction.
  • If you receive a large bonus, you may owe additional tax at tax time if not enough was withheld during the year.

How withholding works on a signing bonus

When you receive a signing bonus, your employer must withhold taxes before handing you the money. The federal income tax withholding is usually 22 percent, though some employers use the percentage from your W-4 form instead. On top of that, Social Security tax (6.2 percent) and Medicare tax (1.45 percent) are withheld automatically — these are not optional.

Some states also tax wages, so your state income tax may be withheld as well. The rate depends on where you live and work. If you live in a state with no income tax (such as Texas, Florida, or Nevada), you will not see a state withholding.

The key point: withholding is not the same as the tax you owe. Withholding is money your employer sends to the IRS on your behalf. Your actual tax bill depends on your total income for the year, your filing status, and the deductions you claim.

What happens if too little tax was withheld

If your employer withheld 22 percent on a large signing bonus but your actual tax rate is higher, you will owe the difference when you file your return. This often happens to people who receive bonuses that push them into a higher tax bracket for the year.

For example, if you earn $60,000 in salary and receive a $40,000 signing bonus, your total income is $100,000. The tax on $100,000 is higher than the tax on $60,000 plus 22 percent of $40,000. You may owe several hundred or several thousand dollars at tax time, depending on your situation.

To avoid a surprise bill, you can ask your employer to withhold extra tax from your paychecks during the year. Fill out a new W-4 form and request additional withholding. This spreads the tax burden across the year instead of creating a lump-sum debt in April.

What happens if too much tax was withheld

If your employer withheld more than you actually owe, you will receive a refund when you file your tax return. This is common when a flat 22 percent withholding rate is applied to a bonus but your actual tax rate is lower.

The refund arrives weeks or months after you file, depending on the IRS processing time and whether you file electronically or by mail. If you need the money sooner, you cannot get it back early — the IRS does not issue refunds before the return is processed.

Signing bonuses and self-employment tax

If you are a contractor or self-employed, a signing bonus is still taxable income, but the withholding rules are different. Your client or new business partner will not withhold taxes automatically. You are responsible for setting aside money to cover federal income tax, self-employment tax (which covers both Social Security and Medicare), and state tax if applicable.

Self-employment tax is 15.3 percent (12.4 percent for Social Security and 2.9 percent for Medicare), plus your income tax rate. This is significantly higher than the withholding on a W-2 bonus because you pay both the employee and employer portions of Social Security and Medicare.

To avoid a large tax bill, set aside 25 to 30 percent of any signing bonus you receive as a contractor. You can also make quarterly estimated tax payments to the IRS, which spreads the burden across the year.

Signing bonuses and your tax bracket

A large signing bonus can push you into a higher tax bracket, which means a portion of your income is taxed at a higher rate. This does not mean all your income is taxed at the higher rate — only the income above the bracket threshold.

For 2024, the federal tax brackets for single filers range from 10 percent to 37 percent depending on income. If a signing bonus moves you from the 22 percent bracket to the 24 percent bracket, only the income in the 24 percent range is taxed at 24 percent. The rest remains at 22 percent.

This is why withholding at a flat 22 percent may not be enough. Your employer does not know your total income or filing status, so they cannot calculate your exact bracket. You will reconcile the difference when you file your return.

Signing bonuses and state taxes

State income tax on a signing bonus depends on where you live and where you work. If you live and work in the same state, the state where you live taxes the bonus. If you work in one state and live in another, the rules vary by state.

Some states have reciprocal agreements that prevent you from being taxed twice. Others tax based on where the work is performed. A few states (Alaska, Florida, Nevada, South Dakota, Tennessee, Texas, Washington, and Wyoming) have no state income tax at all.

If you are moving for a job and receiving a signing bonus, check the tax rules in both your old and new state. You may owe tax in both places for the year you move, or you may be able to claim a credit to avoid double taxation.

Frequently Asked Questions

Is a signing bonus taxed differently than a regular paycheck?

No. Both are taxed as ordinary income at your regular tax rate. The only difference is how your employer processes the withholding — some use a flat rate and others use your W-4 percentage. The final amount you owe is the same either way.

Can I deduct a signing bonus on my taxes?

No. A signing bonus is income, not a deductible expense. You cannot reduce your taxable income by claiming the bonus as a loss or business expense. You report it as wages on your tax return.

What if my signing bonus is paid in stock or restricted stock units?

Stock bonuses are taxed when they vest or when you receive them, depending on the plan. Your employer will report the value as income on your W-2, and taxes will be withheld. If the stock price rises after you receive it, the gain is taxed separately as a capital gain when you sell.

Do I have to report a signing bonus if it was under $600?

Yes. There is no minimum threshold for reporting wages. Any signing bonus, no matter the size, must be reported on your tax return. Your employer will report it on your W-2 form, and you must include it in your income.

Can I negotiate a higher signing bonus to cover the taxes?

You can ask, but it is not standard practice. Some employers will agree to a "tax gross-up," where they increase the bonus to cover the taxes you will owe. This is more common in executive compensation. For most jobs, the signing bonus amount is fixed, and you are responsible for the tax.