Yes, 401(k) withdrawals are taxed as ordinary income when you take the money out in retirement

Money you withdraw from a traditional 401(k) after you retire is taxed at your regular income tax rate — the same rate that applies to wages or salary. The IRS taxes it as ordinary income, not as capital gains or a special retirement rate. If you contributed pre-tax dollars to your 401(k) while working, those contributions and all the growth they earned are taxed when you withdraw them.

The tax you owe depends on your total income that year, your filing status, and your tax bracket. If you withdraw $30,000 from your 401(k) and earn $20,000 from part-time work, the IRS sees $50,000 in income for that year and taxes you accordingly. This is different from a Roth 401(k), where may have access to withdrawals are tax-free because you paid taxes on the money going in.

Key Takeaways

  • Traditional 401(k) withdrawals are taxed as ordinary income at your regular tax rate, not a special retirement rate.
  • You owe taxes on the full amount you withdraw, including all investment growth, unless you have a Roth 401(k).
  • The amount of tax you pay depends on your total income that year and which tax bracket you fall into.
  • You must begin taking required minimum distributions (RMDs) at age 73, and those withdrawals are fully taxable.
  • Roth 401(k) withdrawals are tax-free in retirement if you meet the five-year holding rule and are at least 59½.

How your tax bracket affects what you owe

The tax on your 401(k) withdrawal is not a flat percentage — it depends on your tax bracket for that year. If you are in the 22% tax bracket, a $10,000 withdrawal costs you $2,200 in federal income tax. But if you withdraw $50,000 in a single year and that pushes you into the 24% bracket, the amount above the 22% threshold is taxed at 24%.

This matters because some retirees spread withdrawals across multiple years to stay in a lower bracket. If you retire at 62 and do not need much income, you might withdraw smaller amounts each year and pay less tax overall than if you took one large lump sum. Your state may also tax 401(k) withdrawals — rates vary by state, and some states do not tax retirement income at all.

Required minimum distributions and taxes

At age 73, the IRS requires you to withdraw a minimum amount from your traditional 401(k) each year, called a required minimum distribution (RMD). You have no choice about whether to take it — the IRS calculates the amount based on your age and account balance. The full RMD is taxable as ordinary income, even if you do not need the money and would rather leave it invested.

If you miss an RMD or withdraw less than required, the IRS charges a penalty of 25% on the amount you should have withdrawn (reduced to 10% if you correct it within two years). This penalty is in addition to the income tax you owe. The only way to avoid RMDs is to keep working past age 73 if your employer allows it, or to roll your 401(k) into an IRA and use the "still-working exception" if you own less than 5% of the company.

The difference between traditional and Roth 401(k) taxes

A Roth 401(k) works the opposite way. You pay taxes on the money when you contribute it, so withdrawals in retirement are tax-free. If you contributed $5,000 to a Roth 401(k) and it grew to $8,000, you withdraw all $8,000 with no tax bill. This is a major advantage if you expect to be in a higher tax bracket in retirement or if tax rates rise.

However, Roth withdrawals must meet two conditions to be tax-free: you must have held the account for at least five years, and you must be at least 59½ years old (with some exceptions for disability or death). If you withdraw before meeting both conditions, the earnings portion is taxed as ordinary income, plus a 10% penalty. The contribution portion is always tax-free, but the growth is not.

Taxes on early withdrawals before age 59½

If you withdraw from a traditional 401(k) before age 59½, you owe income tax on the withdrawal plus a 10% early withdrawal penalty. A $20,000 withdrawal at age 55 costs you income tax plus $2,000 in penalty. Some exceptions exist — you can withdraw penalty-free if you are separated from service and take "substantially equal periodic payments," or if you have a may have access to hardship — but the income tax still applies.

Roth 401(k) contributions can be withdrawn penalty-free at any age, but earnings cannot. If you have a Roth 401(k) with $30,000 in contributions and $10,000 in earnings, you can withdraw the $30,000 without penalty or tax, but the $10,000 in earnings is subject to tax and penalty if you are under 59½.

How to estimate your tax bill

To get a rough idea of what you will owe, multiply your planned withdrawal by your expected tax bracket. If you withdraw $40,000 and expect to be in the 22% federal bracket, you will owe roughly $8,800 in federal tax (before considering state tax). Add your state income tax rate if your state taxes retirement income. This is an estimate only — your actual tax depends on all your income sources that year, deductions, and credits.

Many retirees ask their 401(k) provider to withhold taxes directly from each withdrawal. You can request 10%, 20%, or another percentage, or a specific dollar amount. Withholding does not change what you owe — it just spreads the payment across the year instead of paying it all at tax time. If you do not withhold enough, you may owe more when you file your return.

Rolling over a 401(k) to an IRA and tax consequences

When you leave a job or retire, you can roll your 401(k) into a traditional IRA without paying taxes on the transfer. The money stays invested and grows tax-deferred. Withdrawals from the IRA are taxed the same way as 401(k) withdrawals — as ordinary income. You can also do a direct rollover, where the 401(k) provider sends the money straight to the IRA, which avoids any withholding complications.

If you do a 60-day rollover instead (the provider sends you the check), the provider withholds 20% for taxes. You have 60 days to deposit the full amount into an IRA, including the 20% that was withheld. If you do not replace the withheld amount from your own funds, that 20% is treated as a withdrawal and is taxable, plus subject to the 10% penalty if you are under 59½. Direct rollovers are simpler and avoid this trap.

Frequently Asked Questions

Do I have to pay taxes on my 401(k) if I never withdraw it?

No, as long as the money stays in the account. But at age 73, you must begin taking required minimum distributions, and those are fully taxable. If you do not need the money, you still owe income tax on the RMD amount.

What if I have both a traditional and a Roth 401(k)?

Withdrawals from each are taxed separately. Traditional withdrawals are taxed as ordinary income. Roth withdrawals are tax-free if you meet the five-year holding rule and are at least 59½. You can withdraw from either account in any order you choose.

Can I avoid taxes by taking small withdrawals each year?

You still owe income tax on whatever you withdraw, but spreading withdrawals across years may keep you in a lower tax bracket. For example, withdrawing $20,000 per year for five years may cost less in taxes than withdrawing $100,000 in one year, depending on your other income.

Are 401(k) withdrawals subject to Social Security tax?

No, 401(k) withdrawals are not subject to Social Security or Medicare tax. They are only subject to federal and state income tax. However, withdrawals can affect how much of your Social Security benefit is taxable.

What happens if I do not withhold enough tax from my withdrawals?

You will owe the difference when you file your tax return. You may also owe estimated tax penalties if you did not pay enough throughout the year. It is better to withhold too much and get a refund than to underpay and owe penalties.