Yes, beneficiaries usually pay taxes on a 401k inheritance, but whether you owe anything depends almost entirely on what kind of 401k you inherited. Money coming out of an inherited traditional 401k is taxed as ordinary federal income in the year you receive it, at rates between 10% and 37% for 2026.1Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026 Money coming out of an inherited Roth 401k typically comes out tax-free. Your relationship to the person who died and the rules of the specific plan then decide how quickly the account has to be emptied, which in turn decides how big a tax hit you take in any single year.
Traditional 401k: Every Dollar Is Taxable Income
Traditional 401k contributions went in before tax, so distributions come out fully taxable. Federal law treats a distribution to a beneficiary the same way it treats a distribution to the original account holder: the full amount is ordinary income to whoever receives it in the year it’s paid.2Office of the Law Revision Counsel. 26 U.S. Code 402 – Taxability of Beneficiary of Employees Trust
The bracket you land in depends on the size of the withdrawal plus your other income for the year. For 2026, single filers pay 10% on the first $12,400 of taxable income and up to 37% on income above $640,600.1Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026 Inherit a $400,000 traditional 401k and cash it out in a single year, and that entire amount stacks on top of your regular wages. The top portion can hit the 32% or 35% bracket even for someone who normally pays 22%.
No Early Withdrawal Penalty for Beneficiaries
One rule works in your favor. The 10% early withdrawal penalty that normally applies to retirement account distributions before age 59½ does not apply to money taken from an inherited 401k. Distributions made to a beneficiary after the owner’s death are specifically exempt.3Internal Revenue Service. Topic No. 558, Additional Tax on Early Distributions From Retirement Plans Other Than IRAs You can withdraw at any age without that extra 10% bite.
Roth 401k: Usually Tax-Free
Roth 401k contributions were made with after-tax dollars, so the account owner already paid income tax on the money. Distributions to a beneficiary are tax-free as long as the account satisfies the five-year rule: the first Roth contribution must have been made at least five tax years before the distribution. Because the distribution happens after the owner’s death, that condition is automatically satisfied under IRS rules.4Internal Revenue Service. Retirement Topics – Designated Roth Account
If the account was opened less than five years before the owner died, only the earnings portion is taxable. Your share of the original contributions still comes out tax-free; the earnings are taxed as ordinary income on a pro-rata basis alongside the contributions.4Internal Revenue Service. Retirement Topics – Designated Roth Account Most long-tenured Roth 401k accounts will have cleared the five-year mark, making the whole inheritance federally tax-free.
How Fast You Must Withdraw the Money
Timing is the second big lever on your tax bill. The SECURE Act of 2019 replaced the old “stretch” rules that let most beneficiaries take distributions over their own lifetime. The IRS now sorts beneficiaries into categories, and the category decides how many years you have to empty the account.
Surviving Spouses
A surviving spouse has the most options, and the choice can carry six-figure tax consequences over a lifetime:5Internal Revenue Service. Retirement Topics – Beneficiary
- Roll the inherited 401k into your own IRA. It effectively becomes your retirement account, subject to your own RMD schedule. If you’re under 59½, though, withdrawals from your own IRA become subject to the 10% early withdrawal penalty, because the inherited-account exemption no longer applies once you’ve treated the account as your own.
- Keep it as an inherited account. You can take distributions based on your own life expectancy. If your spouse died before their required beginning date, distributions can be delayed until the year your spouse would have reached RMD age.
- Use the 10-year rule voluntarily. Most spouses won’t want to, but the option exists.
The rollover often makes the most sense for a younger spouse who doesn’t need the income now, because it stretches out tax-deferred growth. An older spouse, or one who needs cash, may do better keeping it as an inherited account and drawing on it without regard to age.
Eligible Designated Beneficiaries
A short list of non-spouse beneficiaries still qualifies to stretch distributions over their own life expectancy:5Internal Revenue Service. Retirement Topics – Beneficiary
- A minor child of the account owner, until reaching age 21. After that, the 10-year rule takes over for the remaining balance. This applies only to the owner’s own child, not a grandchild, niece, or nephew.
- A disabled or chronically ill individual.
- Any beneficiary not more than 10 years younger than the deceased, which often covers siblings or close-in-age friends.
Everyone Else: The 10-Year Rule
Adult children, grandchildren, friends, non-spouse partners, and most trusts fall into the standard category. The full account balance has to be withdrawn by December 31 of the tenth year after the owner’s death.5Internal Revenue Service. Retirement Topics – Beneficiary
Whether you also have to take money out every year during that decade depends on the owner’s age at death. If the owner died before starting required minimum distributions, you can withdraw any amount in any year, as long as the account is empty by year ten. If the owner had already begun RMDs, the IRS requires annual distributions in years one through nine, with a final withdrawal in year ten.6Internal Revenue Service. Notice 2024-35, Required Minimum Distributions The required beginning date is age 73 for people born between 1951 and 1959, and age 75 for people born in 1960 or later.7Internal Revenue Service. Retirement Topics – Required Minimum Distributions (RMDs)
Miss a required withdrawal and the penalty is a 25% excise tax on the shortfall. It drops to 10% if you fix the mistake within the IRS correction window, generally two years.8Internal Revenue Service. Publication 590-B (2025), Distributions From Individual Retirement Arrangements (IRAs) – Section: Excess Accumulations The financial institution will typically calculate the amount, but the legal responsibility for taking it on time is yours.
Check the Plan’s Own Rules First
The IRS sets the maximum time you have to distribute an inherited 401k, but individual plans can impose tighter rules. Some employer plans require beneficiaries to take a full lump sum even where the IRS would allow a 10-year payout or life-expectancy stretch. The plan document controls what options are actually on the table.9Internal Revenue Service. 401k Resource Guide Plan Participants General Distribution Rules Non-spouse beneficiaries can often work around a forced lump sum by requesting a direct trustee-to-trustee transfer into an inherited IRA, which usually offers more flexible distribution options. Not every plan allows this, so ask the administrator in writing before making any move.
Ways to Reduce What You Owe
The 10-year window is a planning tool, not a requirement to wait. How you time withdrawals can save tens of thousands.
Spread Withdrawals Across Low-Income Years
If the 10-year rule applies and the owner died before their required beginning date, you have full flexibility on timing. Waiting until year ten and taking one giant distribution is usually the worst outcome, because the whole balance lands in your income in a single tax year. Pulling smaller amounts during years when your other income is low, whether from a job change, parental leave, or a gap year, keeps more of the money in the 12% or 22% brackets instead of the 32% or 35% brackets.
Qualified Charitable Distributions
If you’re at least 70½ and have rolled an inherited 401k into an inherited IRA, you can send qualified charitable distributions straight to an eligible charity. For 2026, the QCD exclusion caps at $111,000.10Internal Revenue Service. 2026 Amounts Relating to Retirement Plans and IRAs A QCD counts toward your RMD but stays out of your taxable income. The mechanism only works from an IRA, not directly from a 401k, so the rollover step matters.11Internal Revenue Service. Publication 590-B (2025), Distributions From Individual Retirement Arrangements (IRAs)
Net Unrealized Appreciation on Employer Stock
If the inherited 401k holds appreciated employer stock, a Net Unrealized Appreciation election may help. Instead of rolling the stock into an inherited IRA, you transfer the shares into a regular taxable brokerage account. You pay ordinary income tax on the stock’s original cost basis at transfer, but the growth is taxed at long-term capital gains rates when you sell. Capital gains rates top out at 20%, well below the 37% top ordinary rate, so the savings on heavily appreciated stock can be large. The trade-off: no step-up in basis on the stock, and you owe the ordinary income tax immediately on the basis. The strategy pays off only when the stock has grown well past what it cost.
State Income Tax
Federal isn’t the only bill. Most states treat inherited 401k distributions as ordinary income, matching the federal approach. Rates run from zero in the nine states with no income tax up to over 13% in the highest-tax states. Some states exempt part of retirement income, often starting at age 59½ or 65, but exemptions vary widely and may not cover inherited accounts. In a high-tax state, the combined federal and state rate on a large distribution can approach 50%.
A few states also impose their own estate or inheritance taxes with lower exemption thresholds than the federal level. Those are separate from income tax and can add a layer of tax on the account value before you ever take a distribution.
Federal Estate Tax
The 401k balance counts as part of the deceased owner’s taxable estate. For 2026, the federal estate tax exemption is $15,000,000 per person, following legislation signed in July 2025.12Internal Revenue Service. Whats New – Estate and Gift Tax Estates under that number owe no federal estate tax. Above it, the top rate is 40%.
When both estate tax and income tax hit the same 401k dollars, federal law provides some relief. A beneficiary who pays income tax on distributions from an estate that also paid estate tax can claim an itemized federal income tax deduction for the estate tax attributable to those retirement funds, under the “income in respect of a decedent” rules.13eCFR. 26 CFR 1.691(c)-2 Estates and Trusts The deduction is calculated proportionally based on how much of the estate’s income in respect of a decedent you actually received.
Reporting the Distributions and Handling Withholding
The plan administrator or financial institution issues a Form 1099-R for every distribution made from the inherited account during the tax year. Box 1 shows the gross distribution and Box 2a shows the taxable amount. A copy goes to you and to the IRS.14Internal Revenue Service. Instructions for Forms 1099-R and 5498 (2025) You report the taxable portion on your Form 1040 under pensions and annuities.
Federal withholding on inherited 401k distributions is generally optional. You can ask the institution to withhold a percentage to cover the tax bill, which is worth doing to avoid an April surprise. If you skip withholding, you’ll likely need to make quarterly estimated payments. The IRS generally requires estimated payments when you expect to owe at least $1,000 after subtracting withholding and credits, and when your withholding won’t cover at least 90% of the current year’s liability or 100% of last year’s (110% if your adjusted gross income exceeded $150,000).15Internal Revenue Service. Large Gains, Lump Sum Distributions, Etc. Underpayment penalties are modest, but they’re avoidable with a little planning.