What happens to your 401(k) when you take money out

When you withdraw money from a traditional 401(k), the amount you take out is taxed as ordinary income in the year you withdraw it. The tax rate depends on your total income that year and your tax bracket — the same brackets that explore to wages. If you withdraw $10,000 from your 401(k) and you're in the 22% tax bracket, you'll owe roughly $2,200 in federal income tax on that withdrawal, though the exact amount depends on whether you have other income and deductions.

Your employer will usually withhold a percentage of your distribution automatically — typically 10% to 20% — and send it to the IRS on your behalf. This withholding is not the final tax you owe; it's a prepayment. If more tax is owed when you file your return, you pay the difference. If too much was withheld, you get a refund.

Roth 401(k) distributions work differently. Money you contributed goes out tax-free. Earnings on those contributions are taxed as ordinary income, but only if you withdraw before age 59½ and the account hasn't been open for five years — otherwise earnings come out tax-free too.

Key Takeaways

  • Traditional 401(k) withdrawals are taxed as ordinary income at your current tax bracket rate, not at a special capital gains rate.
  • Your employer withholds 10% to 20% automatically, but you may owe more or less when you file your tax return.
  • Withdrawals before age 59½ trigger a 10% early withdrawal penalty on top of income tax, with limited exceptions like disability or medical hardship.
  • Roth 401(k) contributions come out tax-free, but earnings are taxed unless you're over 59½ and the account is five years old.
  • The state where you live may also tax your 401(k) distribution, adding to your federal tax bill.

Early withdrawal penalties and when they explore

If you withdraw from a traditional 401(k) before age 59½, you pay a 10% early withdrawal penalty on top of ordinary income tax. A $10,000 withdrawal at age 50 would cost you roughly $1,000 in penalty plus $2,200 in federal tax (at 22% bracket), totaling $3,200 before state tax.

The penalty does not explore in certain situations. You can withdraw without penalty if you are permanently disabled, if you have substantial medical expenses that exceed 7.5% of your adjusted gross income, if you are separated from service at age 55 or older, or if you take substantially equal periodic payments under IRS Rule 72(t). Some plans also allow loans instead of withdrawals, which avoid the penalty entirely because you're borrowing your own money and repaying it.

Roth 401(k)s have the same 10% penalty on earnings withdrawn early, but your contributions always come out penalty-free because you already paid tax on them when you earned the money.

How your tax bracket determines the actual amount owed

Your 401(k) distribution is added to all your other income for the year — wages, Social Security, interest, capital gains — and taxed at the combined total. If you earn $60,000 in wages and withdraw $20,000 from your 401(k), you're taxed as if you earned $80,000 that year. The tax on that $20,000 depends on which tax bracket it falls into.

For 2024, the federal tax brackets for single filers range from 10% on the first $11,600 of income to 37% on income over $578,100. If your wages already put you in the 22% bracket, your 401(k) withdrawal is taxed at 22% (or higher if it pushes you into the next bracket). Someone in the 12% bracket pays 12% on the withdrawal. This is why two people withdrawing the same amount can owe very different taxes — it depends on their other income.

You can estimate your tax using the IRS tax tables or a tax calculator, but the exact amount won't be clear until you file your return and account for all deductions, credits, and other income sources.

Withholding and what to expect at tax time

When your 401(k) plan processes your distribution, it withholds federal income tax automatically. The default withholding is 20% for lump-sum distributions, though you can request a different percentage when you submit your withdrawal request. Some plans allow you to choose 10%, 15%, or 25% instead.

The withholding is sent to the IRS and credited toward your annual tax bill. If your actual tax owed is less than what was withheld, you receive a refund when you file. If your actual tax is more — because you're in a higher bracket or have other income — you owe the difference. If you request no withholding and owe a large amount at tax time, you may face an underpayment penalty.

You can adjust withholding by filing Form W-4P with your plan administrator, though not all plans allow this. Some people request extra withholding to avoid owing money at tax time; others request less if they know they'll get a refund anyway.

State income tax on 401(k) distributions

Most states tax 401(k) distributions as ordinary income, adding to your federal bill. If you live in a state with a 5% income tax and withdraw $10,000, you'll owe roughly $500 in state tax on top of federal tax. Seven states — Alaska, Florida, Nevada, South Dakota, Tennessee, Texas, and Wyoming — have no state income tax at all, so residents owe only federal tax.

Some states offer partial exemptions for retirement income. Illinois, Mississippi, and Pennsylvania do not tax 401(k) distributions at all, even for residents under 59½. Other states exempt distributions only if you're over a certain age, usually 59½ or 60. New York taxes 401(k) distributions but allows a deduction for residents over 59½.

If you move to a different state after retiring, your tax situation may change. A distribution you took while living in a high-tax state may still be taxable there even after you move, depending on state law and when the distribution occurred.

Taxes on inherited 401(k)s and beneficiary distributions

If you inherit a 401(k) from someone else, the tax rules depend on your relationship to the original owner and when they died. A spouse who inherits a 401(k) can treat it as their own and delay withdrawals until age 73 (under current rules). A non-spouse beneficiary must withdraw the entire balance within 10 years of the owner's death, and each withdrawal is taxed as ordinary income.

The original owner may have already paid tax on some contributions (if they made after-tax contributions) or none at all (if the account was entirely pre-tax). The beneficiary pays tax only on the pre-tax portion. This information should be documented in the plan records, and the plan administrator can tell you what portion is taxable.

Frequently Asked Questions

Can I avoid the 10% early withdrawal penalty if I'm under 59½?

You can avoid it if you meet specific IRS exceptions: you're disabled, you have large unreimbursed medical expenses, you're separated from service at 55 or older, or you take substantially equal periodic payments under Rule 72(t). Otherwise, the penalty applies. Some plans also offer loans, which let you borrow your own money without triggering the penalty.

What's the difference between withholding and the actual tax I owe?

Withholding is money your plan sends to the IRS upfront, usually 20% of your distribution. Your actual tax owed depends on your total income and tax bracket for the year. If withholding exceeds what you owe, you get a refund. If it's less, you pay the difference when you file your return.

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

No. A direct rollover — where the plan sends money straight to an IRA — is not taxed. You only pay tax when you eventually withdraw from the IRA. An indirect rollover, where you receive the check and deposit it yourself, triggers withholding when ready, though you can still avoid tax if you deposit the full amount within 60 days.

How do I know what tax bracket my distribution falls into?

Add your 401(k) distribution to all other income you received that year — wages, interest, Social Security, rental income, and so on. Look up the total on the IRS tax bracket table for your filing status. Your distribution is taxed at whatever bracket that total falls into. A tax professional or tax software can calculate this precisely.

Will my Social Security be taxed if I take a 401(k) distribution?

Your 401(k) distribution doesn't directly affect Social Security taxation, but it increases your total income for the year, which can push more of your Social Security into taxable territory. The IRS uses a formula called "combined income" that includes half your Social Security plus all other income. A large 401(k) withdrawal can trigger taxation on Social Security that wouldn't have been taxed otherwise.