How Much Is Taxed on a 401(k) Early Withdrawal?

A 401(k) early withdrawal tax bill has two pieces: a flat 10 percent federal penalty and ordinary federal income tax on the full taxable amount, plus state income tax in most states. Together they commonly take 20 to 40 percent of the money you pull out before age 59½. The penalty is fixed; the income tax depends on your bracket; and a handful of specific exceptions can remove the penalty (but never the income tax).

The 10 Percent Federal Penalty

Any distribution from a traditional 401(k) before age 59½ is treated as an early withdrawal, and the IRS adds a 10 percent additional tax on the taxable portion.¹ It sits on top of your regular income tax, not in place of it. Withdraw $20,000 from a pre-tax 401(k) and you owe $2,000 in penalty alone, before a dollar of income tax is calculated.²

Ordinary Income Tax on the Withdrawal

The IRS treats 401(k) distributions as ordinary income, taxed at the same rates as wages rather than the lower long-term capital gains rates.³ The withdrawal is stacked on top of your other income for the year, and the combined total determines which brackets apply.⁴

Because the system is progressive, an early withdrawal can push part of your income into a higher bracket. Take a single filer earning $45,000 in wages, whose top dollar sits in the 12 percent bracket. A $15,000 401(k) withdrawal lifts taxable income to $60,000. The first $5,400 of the withdrawal is still taxed at 12 percent; the remaining $9,600 is taxed at 22 percent. Add the 10 percent penalty on the full $15,000, and the federal tax on that withdrawal comes to roughly $4,260, or about 28 percent, before any state tax.

Mandatory 20 Percent Withholding

When a distribution is eligible to be rolled over into another retirement account, the plan administrator must withhold 20 percent of the taxable amount and send it to the IRS as a prepayment.⁵ You can’t opt out on an eligible rollover distribution, though you can ask for more.³

Request $30,000 and you receive $24,000; the other $6,000 goes to the IRS. You still owe tax and penalty on the whole $30,000. The withholding is a credit on your return, not a settlement. If it doesn’t cover the actual tax bill, you pay the balance at filing; if it covers too much, you get the difference back.

A Full Example of the Total Cost

Consider a single filer in 2026 with $50,000 in other taxable income who withdraws $25,000 from a traditional 401(k) at age 45:

10 percent federal penalty: $2,500
Federal income tax: the $25,000 stacks on the $50,000 and lands in the 22 percent and 24 percent brackets, adding roughly $5,500 to $6,000
State income tax: varies widely, but often another $1,000 to $2,500
Total: roughly $9,000 to $11,000 on a $25,000 withdrawal, leaving about $14,000 to $16,000 in hand

The plan will withhold 20 percent ($5,000) at distribution, so you’d receive $20,000 upfront and settle the rest at filing. Most states with an income tax treat 401(k) distributions as taxable ordinary income; rates run from zero in no-income-tax states to above 10 percent in the highest. A few states impose their own early withdrawal penalty as well, though these are less common and smaller than the federal one. Check your state’s treatment before taking the distribution.

Exceptions That Waive the 10 Percent Penalty

Several situations remove the 10 percent penalty. Income tax on the taxable amount still applies in every case; the exception only cancels the extra 10 percent.¹

Long-Standing Exceptions

Separation from service at age 55 or older. If you leave your job during or after the year you turn 55, distributions from that employer’s 401(k) are penalty-free. It applies only to the plan at the employer you just left, not to older accounts.⁶
Substantially equal periodic payments (SEPP). A schedule of roughly equal annual payments based on life expectancy, continuing for at least five years or until age 59½, whichever is later. Break the schedule early and the IRS applies the penalty retroactively to every prior payment.²
Total and permanent disability.⁷
Qualified domestic relations order (QDRO). A court order splitting the account in a divorce lets the receiving spouse take a penalty-free distribution.
Unreimbursed medical expenses above 7.5 percent of adjusted gross income, whether or not you itemize.
Death. Distributions to a beneficiary after the account holder dies are penalty-free at any age.
IRS levy against the account.

Newer Exceptions Under SECURE 2.0

Terminal illness certified by a physician. You can repay the amount within three years.
Domestic abuse by a spouse or domestic partner. You can withdraw the lesser of $10,000 (indexed) or 50 percent of the account balance, repayable within three years.
Emergency personal expenses. One withdrawal of up to $1,000 per year for an unforeseeable personal or family emergency. No further emergency distribution from the same plan for three calendar years unless you repay the earlier one or make equivalent new contributions.
Qualified birth or adoption. Up to $5,000 per parent per child within one year of birth or finalized adoption, repayable within three years.

Exceptions That Do Not Apply to 401(k) Plans

Two commonly cited exceptions apply only to IRAs, not 401(k)s: qualified higher education expenses and up to $10,000 for a first-time home purchase. Withdrawing from a 401(k) for tuition or a down payment triggers the penalty. Rolling the money to an IRA first and then taking the distribution can preserve those exceptions, but the rollover has to be complete before you withdraw.¹

Roth 401(k) Withdrawals Are Taxed Differently

If part of your 401(k) is Roth money that you already paid income tax on, the portion of a non-qualified distribution representing your original contributions is not taxed again. Earnings, though, are taxed as ordinary income and can face the 10 percent penalty if the withdrawal happens before age 59½ and before the account has been open five years.

Plans generally distribute Roth withdrawals as a proportional mix of contributions and earnings; you can’t cherry-pick contributions first. If half the Roth balance is contributions and half is earnings, roughly half the distribution is tax-free and half is taxable. The plan administrator reports the split on Form 1099-R.

A 401(k) Loan Avoids Tax and Penalty Entirely

If your plan allows loans, borrowing from the account sidesteps both the penalty and income tax. You can borrow the lesser of 50 percent of your vested balance or $50,000; some plans allow up to $10,000 when half of the vested balance is smaller than that.⁸ Repayment typically runs five years, with at least quarterly payments of principal and interest back into your own account.

If you leave the employer with a loan outstanding, the remaining balance is treated as a distribution and shows up on Form 1099-R. You can avoid the resulting tax and penalty by rolling the offset amount into an IRA or another eligible plan by the due date of your federal return (including extensions) for the year of the deemed distribution.⁹ Miss that deadline and the unpaid balance becomes taxable, with the 10 percent penalty on top if you’re under 59½.

Reporting the Withdrawal at Tax Time

Your plan administrator issues Form 1099-R showing the distribution, the taxable portion, and the federal tax withheld. Box 7 carries a distribution code: Code 1 means an early distribution with no known exception, Code 2 means an early distribution with an exception.¹⁰

Report the taxable portion as income on Form 1040. The 10 percent penalty is calculated on Form 5329, which you attach to the return.¹¹ If a penalty exception applies but your 1099-R still shows Code 1, you can claim the exception on Form 5329. The 20 percent that was withheld appears as a tax credit, reducing what you owe or increasing your refund; if it isn’t enough to cover the full bill, you pay the balance at filing.

1
Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions
2
Office of the Law Revision Counsel. 26 USC 72 Annuities; Certain Proceeds of Endowment and Life Insurance Contracts – Section: 10-Percent Additional Tax on Early Distributions
3
Internal Revenue Service. 401k Resource Guide Plan Participants General Distribution Rules
4
Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026, Including Amendments From the One, Big, Beautiful Bill
5
Internal Revenue Service. Pensions and Annuity Withholding
6
Internal Revenue Service. Retirement Topics – Significant Ages for Retirement Plan Participants
7
Internal Revenue Service. Retirement Topics – Disability
8
Internal Revenue Service. Retirement Topics – Plan Loans
9
Internal Revenue Service. Plan Loan Offsets
10
Internal Revenue Service. Instructions for Forms 1099-R and 5498
11
Internal Revenue Service. About Form 5329, Additional Taxes on Qualified Plans (Including IRAs) and Other Tax-Favored Accounts