How 401(k) Withdrawals Are Taxed

Yes, most 401(k) withdrawals are taxed as ordinary income in the year you take them

When you withdraw money from a traditional 401(k), the IRS treats it as income. You pay federal income tax on the full amount at your ordinary income tax rate — the same rate you pay on your salary. If your employer withheld taxes from your paychecks at 22%, your 401(k) withdrawal may be taxed at 22%, 24%, 32%, or another bracket depending on your total income that year. The tax is owed whether you need the money or not.

A Roth 401(k) works differently. Withdrawals of money you contributed are never taxed. Withdrawals of the earnings (the growth on your contributions) are tax-free if you meet two conditions: you must be at least 59½ years old, and the account must have been open for at least five tax years. If you withdraw earnings before meeting both conditions, you pay income tax on the earnings portion only.

The tax bill arrives in two ways. Your employer may withhold a percentage of your withdrawal automatically — typically 10%, 20%, or an amount you request. But withholding is not the same as paying the tax. If you owe more than what was withheld, you pay the difference when you file your return. If less was withheld, you get a refund.

Key Takeaways

• Traditional 401(k) withdrawals are taxed as ordinary income at your full tax rate, not at a special lower rate.
• Roth 401(k) contributions come out tax-free anytime; earnings come out tax-free only if you are 59½ and the account is five years old.
• Your employer withholds a percentage of your withdrawal, but you may owe more tax when you file your return if the withholding was too low.
• Withdrawals before age 59½ usually trigger a 10% early withdrawal penalty on top of income tax, unless an exception applies.

Early withdrawals before age 59½ and the 10% penalty

If you withdraw from a traditional 401(k) before you turn 59½, you owe a 10% penalty on the amount withdrawn, in addition to income tax. A $10,000 withdrawal at age 50 means $1,000 in penalty plus income tax on the full $10,000. The penalty applies to the withdrawal itself, not to your tax bill.

The IRS allows several exceptions where the 10% penalty does not apply, though income tax still does. These include withdrawals for a may have access to medical expense that exceeds 7.5% of your adjusted gross income, withdrawals to pay health insurance premiums after job loss, withdrawals for a first-time home purchase (up to $10,000 lifetime), and withdrawals due to disability or death. A court-ordered domestic relations order (QDRO) also avoids the penalty. The rules are narrow — a medical expense must meet the IRS definition, and a home purchase must be your first one ever.

Roth 401(k) contributions can be withdrawn before 59½ without penalty or tax. Only the earnings portion is subject to the 10% penalty if withdrawn early, and only if the five-year rule has not been met.

How withholding works and what you owe at tax time

When you request a 401(k) withdrawal, your plan administrator asks how much federal income tax you want withheld. The options are usually a flat percentage (10%, 20%, 25%), a specific dollar amount, or an amount calculated using IRS Form W-4P. Many people choose 20% because it feels safe, but 20% may not cover your actual tax liability if you are in a higher bracket or if the withdrawal pushes you into one.

Withholding is an estimate. It reduces the amount you receive, but it does not settle your tax bill. When you file your tax return the following April, you report the withdrawal as income. Your tax software or preparer calculates what you actually owe based on your total income, filing status, and deductions. If you withheld $2,000 but owe $3,000, you pay the $1,000 difference. If you withheld $2,000 but owe only $1,500, you get a $500 refund.

The withholding is sent to the IRS on your behalf, so it counts as a payment toward your tax bill. You cannot avoid withholding by choosing zero — the IRS requires a minimum withholding on 401(k) distributions, though the rules vary by plan and withdrawal type.

Mandatory withholding on lump-sum distributions

If you take a lump-sum distribution — withdrawing your entire 401(k) balance at once, often when you leave your job — your plan must withhold at least 20% of the taxable amount for federal income tax. This is not optional. Even if you request zero withholding, 20% comes out.

This rule applies to most lump-sum distributions but not to direct rollovers. If you instruct your plan to send the money directly to another retirement account (an IRA, a new employer's 401(k), or a similar plan), no withholding occurs because the money never touches your hands. The 20% withholding applies only when the check is made payable to you.

The 20% withholding can create a cash flow problem. If you withdraw $100,000 in a lump sum, you receive $80,000 and $20,000 is withheld. But if your actual tax bill is $30,000, you still owe $10,000 at tax time. If you need the full $100,000 for living expenses, the withholding leaves you short.

State income tax on 401(k) withdrawals

Federal income tax is only part of the bill. Most states also tax 401(k) withdrawals as ordinary income. Your plan may withhold state tax separately, or it may not withhold state tax at all — the rules vary by state and by plan. Nine states have no income tax (Alaska, Florida, Nevada, South Dakota, Tennessee, Texas, Washington, Wyoming, and New Hampshire), so residents of those states owe no state income tax on withdrawals.

If your plan does not withhold state tax, you may owe it when you file your state return. Some people move to a no-income-tax state after retiring and then take withdrawals. The tax treatment depends on your state of residence when you withdraw, not when you earned the money or when you retired. If you move from California to Texas and then withdraw from your old 401(k), you owe no California state tax on that withdrawal.

Conversions to a Roth 401(k) and tax consequences

You can convert money from a traditional 401(k) to a Roth 401(k) while still employed (if your plan allows it) or after you retire. The conversion is treated as a withdrawal for tax purposes. You owe income tax on the full amount converted in the year of conversion, but no 10% early withdrawal penalty applies even if you are under 59½. After the conversion, that money grows tax-free in the Roth account, and may have access to withdrawals are never taxed.

A conversion is useful if you expect to be in a lower tax bracket in the conversion year than you will be in retirement, or if you want to lock in current tax rates before they rise. It is also useful if you want to access Roth money before 59½ without penalty — you can convert, wait five years, and then withdraw the converted amount penalty-free (though the earnings are still subject to the early withdrawal penalty).

The tax bill for a conversion is due in the year you convert, even though the money stays in your account. If you convert $50,000 and owe $12,000 in tax, you must pay that $12,000 by April 15 of the following year. Many people pay it from outside the account so the full $50,000 can grow tax-free going forward.

Required minimum distributions and their tax treatment

Once you reach age 73 (as of 2023; this age changes based on federal law), you must withdraw a minimum amount from your traditional 401(k) each year. This is called a required minimum distribution (RMD). The amount is calculated by dividing your account balance on December 31 of the prior year by a life expectancy factor published by the IRS. You owe income tax on the full RMD amount, and if you do not take it, the IRS charges a 25% penalty on the amount you failed to withdraw (reduced to 10% if you correct it within two years).

Roth 401(k)s are subject to RMDs during the account holder's lifetime, but the withdrawals are tax-free if the five-year rule has been met. After your death, beneficiaries must withdraw the account according to rules that depend on their relationship to you and when you died.

You can satisfy your RMD by taking it as a regular withdrawal (and paying tax), or by rolling it over to an IRA (which does not count toward the RMD), or by taking it as a may have access to charitable distribution if you are 70½ or older and donate directly to a charity (which avoids income tax on that portion).

Frequently Asked Questions

Can I avoid the tax by rolling my 401(k) to an IRA?

A direct rollover to an IRA does not trigger tax or withholding. The money moves directly from your 401(k) plan to the IRA, and you owe no tax in the year of the rollover. You will owe tax later when you withdraw from the IRA. If you take the money yourself and then deposit it within 60 days, withholding still applies, and you must deposit the full amount (including the withheld portion) to avoid tax on the withheld amount.

What if I need money before 59½ but do not want to pay the 10% penalty?

You can take a loan from your 401(k) if your plan allows it. You borrow from your own account and repay it with interest; no tax or penalty applies as long as you repay on schedule. If you leave your job, the loan usually becomes due within 60 to 90 days. If you cannot repay it, it is treated as a withdrawal and taxed plus penalized. Alternatively, you may may have access to for one of the penalty exceptions (medical, disability, QDRO, or first-time home purchase).

Does my employer match get taxed the same way as my contributions?

Yes. Employer contributions to a traditional 401(k) are taxed as ordinary income when withdrawn, just like your own contributions. The entire account balance — your contributions, employer contributions, and all growth — is taxed on withdrawal. Employer contributions to a Roth 401(k) are also taxed the same way as your contributions: contributions are tax-free, and earnings are tax-free if you meet the age and five-year rules.

If I withdraw $50,000 and 20% is withheld, do I owe tax on $50,000 or $40,000?

You owe tax on the full $50,000. The $10,000 withheld (20%) is a payment toward your tax bill, but the taxable amount is still $50,000. Your tax rate applies to the full amount. If you are in the 24% bracket, you owe $12,000 in tax; the $10,000 withheld leaves you owing $2,000 more at tax time.

What happens if I withdraw from my 401(k) while still working at the company?

Most plans do not allow withdrawals while you are still employed, except for hardship withdrawals or loans. Hardship withdrawals are taxed and penalized the same way as regular early withdrawals. Some plans allow in-service distributions after you reach 59½, which are taxed but not penalized. Check your plan document or ask your HR department what withdrawals are permitted while employed.