What You Owe on a 401(k) Withdrawal

A 401(k) withdrawal is taxed as ordinary income in the year you take the money out. The amount you owe depends on your total income that year, your tax bracket, and whether you took the withdrawal before or after age 59½. If you withdraw before 59½ and don't meet an exception, you also owe a 10 percent early withdrawal penalty on top of the income tax.

The tax is not a flat rate. It's calculated based on your tax bracket — the same way your regular paycheck is taxed. If you earn $50,000 a year and withdraw $20,000 from your 401(k), the IRS treats that $20,000 as additional income, which may push you into a higher tax bracket for the year.

Your employer withholds a default amount from the withdrawal check itself, usually 20 percent for lump-sum distributions. That withholding is a down payment on what you'll owe, not the final amount. You may owe more when you file your tax return, or you may get a refund if too much was withheld.

Key Takeaways

  • 401(k) withdrawals are taxed as ordinary income at your marginal tax rate, not a flat percentage.
  • Withdrawals before age 59½ trigger a 10 percent early withdrawal penalty unless you meet a specific exception like disability or a Roth conversion.
  • Your employer withholds 20 percent by default, but your actual tax bill depends on your total income and tax bracket for the year.
  • You report the full withdrawal amount on your tax return; the withholding is just an estimate and you settle the real amount owed when you file.

How Your Tax Bracket Determines the Actual Tax

The tax you pay on a 401(k) withdrawal is not a percentage of the withdrawal itself. It's based on your marginal tax rate — the tax bracket that applies to your highest dollar of income that year.

If you're single and earn $45,000 in wages, you're in the 12 percent federal tax bracket. If you withdraw $10,000 from your 401(k), that $10,000 is added to your income, making your total $55,000. The first $5,000 of the withdrawal may still be taxed at 12 percent, but the remaining $5,000 may be taxed at 22 percent because it pushes you into the next bracket. Your actual federal tax on the withdrawal is somewhere between 12 and 22 percent, not a flat rate.

State income tax also applies in most states. If you live in a state with income tax, you'll owe state tax on the withdrawal in addition to federal tax. Some states tax 401(k) withdrawals at a lower rate than wages; others tax them the same way. A few states — including Florida, Texas, and Wyoming — have no state income tax at all.

The 10 Percent Early Withdrawal Penalty

If you withdraw money before age 59½, you owe a 10 percent penalty on the amount withdrawn, in addition to income tax. This penalty is separate from the tax itself and applies to the full withdrawal amount.

The penalty does not explore if you meet one of the IRS exceptions. The most common exceptions are disability, death (distributions to your beneficiary), a series of substantially equal periodic payments under Rule 72(t), a Roth conversion, or a withdrawal under the CARES Act (which applied to COVID-related hardships in 2020 and 2021). Some plans also allow penalty-free withdrawals for financial hardship, though the rules vary by plan and the withdrawal is still subject to income tax.

If you're under 59½ and don't meet an exception, the 10 percent penalty is mandatory. For example, a $20,000 withdrawal before age 59½ incurs a $2,000 penalty, plus income tax on the full $20,000.

What Your Employer Withholds and What You Actually Owe

When you request a 401(k) withdrawal, your employer withholds 20 percent of the amount for federal income tax. This is the default withholding rate set by the IRS for lump-sum distributions. If you withdraw $10,000, you receive $8,000 and $2,000 goes to the IRS as a down payment on your tax bill.

The 20 percent withholding is not your final tax bill. It's an estimate. When you file your tax return for the year, you report the full $10,000 as income and calculate what you actually owe based on your tax bracket. If your real tax bill is $1,500, you'll get a $500 refund. If it's $2,500, you'll owe an additional $500 when you file.

You can request a different withholding rate when you take the withdrawal, but most people use the default 20 percent. If you know your tax bill will be higher than 20 percent, you can ask your plan to withhold more, or you can make estimated tax payments during the year to avoid owing a large amount at tax time.

Roth 401(k) Withdrawals and Tax-Free Growth

If your 401(k) is a Roth 401(k), the tax rules are different. You contribute after-tax dollars, so the contributions themselves are not taxed when you withdraw them. However, the earnings (investment growth) are taxed as ordinary income unless you meet the five-year holding requirement and are age 59½ or older.

With a traditional 401(k), the entire withdrawal is taxable because your contributions were made with pre-tax dollars. With a Roth 401(k), only the earnings portion is taxable. If you contributed $30,000 and it grew to $40,000, only the $10,000 in earnings is subject to income tax on withdrawal (assuming you don't meet the five-year and age requirements).

The 10 percent early withdrawal penalty applies to Roth 401(k) earnings if you withdraw before 59½ and don't meet an exception. Contributions can be withdrawn penalty-free at any time, but earnings cannot.

State Tax on 401(k) Withdrawals

Federal income tax is not the only tax you owe on a 401(k) withdrawal. Most states tax 401(k) withdrawals as ordinary income. The state tax rate varies by state and by your income level within that state.

A few states do not tax 401(k) withdrawals at all. These include Alaska, Florida, Illinois, Mississippi, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming. If you live in one of these states, you owe only federal tax on your withdrawal. If you live in another state, you owe both federal and state tax.

Some states offer partial exemptions for retirement income. For example, Pennsylvania does not tax 401(k) withdrawals, but New York taxes them at the same rate as wages. Check your state's tax agency website or speak with a tax professional to understand your state's rules.

How to Estimate Your Total Tax on a Withdrawal

To estimate what you'll owe, add the withdrawal amount to your other income for the year and find your tax bracket. Use the IRS tax tables or a tax calculator to find your federal tax rate. Then add your state income tax rate if your state taxes 401(k) withdrawals. If you're under 59½ and don't meet an exception, add 10 percent for the penalty.

Example: You earn $50,000 in wages and withdraw $15,000 from your 401(k). Your total income is $65,000. If you're single and filing in 2024, your federal tax bracket is 22 percent on the amount above $47,025. The first $2,975 of the withdrawal is taxed at 12 percent, and the remaining $12,025 is taxed at 22 percent. Your federal tax on the withdrawal is roughly $3,300. If you live in a state with 5 percent income tax, add $750. If you're under 59½, add $1,500 for the 10 percent penalty. Your total tax and penalty would be approximately $5,550.

This is an estimate only. Your actual tax depends on your specific situation, deductions, and credits. A tax professional can give you a more precise number based on your full tax picture.

Frequently Asked Questions

Can I avoid the 10 percent penalty if I'm under 59½?

Yes, if you meet one of the IRS exceptions. The most common are disability, death, Rule 72(t) substantially equal payments, a Roth conversion, or a hardship withdrawal under your plan's rules. Check with your plan administrator to see which exceptions explore to your situation. Even if you avoid the penalty, you still owe income tax on the withdrawal.

What happens if the 20 percent withholding is not enough?

You'll owe the difference when you file your tax return. If your actual tax bill is higher than 20 percent of the withdrawal, you'll have to pay the extra amount by the tax important date. You can avoid this by requesting additional withholding when you take the withdrawal, or by making estimated tax payments during the year.

Do I have to pay tax on a 401(k) withdrawal if I roll it over to an IRA?

No, if you complete a direct rollover. A direct rollover means the money goes straight from your 401(k) to an IRA without passing through your hands. You owe no tax or penalty. If you take the money yourself and deposit it within 60 days, you still owe no tax, but your employer will withhold 20 percent, and you'll have to come up with that amount from another source to complete the rollover and avoid owing tax on the withheld amount.

Are 401(k) withdrawals taxed differently than regular income?

No. 401(k) withdrawals are taxed as ordinary income at your marginal tax rate, the same as wages or salary. They are not taxed at a special rate or as capital gains. The only difference is the 10 percent early withdrawal penalty if you're under 59½ and don't meet an exception.

Do I owe tax on a 401(k) withdrawal if I'm retired?

Yes. Retirement status does not change the tax rules. If you withdraw money from a traditional 401(k), you owe income tax on the full amount, regardless of whether you're retired. The tax is based on your total income for the year, including the withdrawal, Social Security, pensions, and any other income sources.