You can’t fully avoid taxes on an inherited 401(k) if the account holds pre-tax money, because every dollar distributed from a traditional 401(k) counts as ordinary income on the beneficiary’s return. What you can do is shrink the bill. The tools that matter are which account structure you use, how you time distributions across tax years, and whether you qualify for specialized moves like a spousal rollover, Net Unrealized Appreciation on employer stock, or a qualified charitable distribution. Spouses have by far the most room to defer. Everyone else is usually working inside a ten-year window and needs to plan the distributions to fit their brackets rather than the calendar.
Spouses: Roll It Over or Keep It Inherited
A surviving spouse is the only beneficiary who can treat inherited retirement money as their own. The choice between rolling the funds into your own IRA or 401(k) and keeping them in an inherited IRA titled in the decedent’s name usually comes down to your age.
If you’re 59½ or older, the spousal rollover almost always wins. Once the money is in your own account, you owe no tax until you take distributions, and your Required Minimum Distributions don’t start until you reach your own RMD age: 73 if you were born between 1951 and 1959, or 75 if you were born in 1960 or later.1Congress.gov. Required Minimum Distribution (RMD) Rules for Original Owners When those RMDs eventually begin, they’re calculated using the Uniform Lifetime Table, which produces smaller annual withdrawals than the table beneficiaries use.2Internal Revenue Service. Retirement Plan and IRA Required Minimum Distributions FAQs Less taxable income each year and more balance left growing tax-deferred.
If you’re under 59½ and need to tap the money, the inherited IRA route is usually smarter. Distributions from an inherited account are exempt from the 10% early withdrawal penalty regardless of your age.3Internal Revenue Service. Retirement Topics – Beneficiary If you’d rolled the same funds into your own IRA and then withdrew before 59½, you’d owe that 10% on top of income tax. Many spouses use the inherited IRA as a bridge: draw penalty-free in their fifties, then roll whatever’s left into their own IRA after 59½ to capture the longer deferral.
Inside the inherited IRA, you can delay distributions until the year the original owner would have hit their RMD age, or start earlier based on your own life expectancy.
Non-Spouses: The 10-Year Rule and How to Work Around It
The 2019 SECURE Act ended lifetime stretch distributions for most non-spouse heirs. If the original owner died after December 31, 2019, and you’re not in one of the exception categories, the entire account must be emptied by December 31 of the year containing the tenth anniversary of the death.3Internal Revenue Service. Retirement Topics – Beneficiary
Whether you must take annual distributions during years one through nine depends on whether the owner had already started their own RMDs. If they died before their required beginning date, you can take any amount, or nothing, in years one through nine, as long as the account is empty at the end of year ten.2Internal Revenue Service. Retirement Plan and IRA Required Minimum Distributions FAQs If they had already started RMDs, you must take annual distributions during years one through nine and empty the account in year ten.
The tax strategy that flows from this is bracket management. Every dollar of distribution stacks on top of your salary and other income for the year. Draining a large account in a single year, whether by choice in year ten or by force because the plan required a lump sum, can push you from the 22% bracket into the 32%, 35%, or 37% bracket. Spreading distributions across ten years keeps more of the money taxed at your normal marginal rate.
A $500,000 inherited traditional 401(k) taken as a year-ten lump sum on top of a middle-class salary lands most of the balance in the top brackets. The same $500,000 taken at roughly $50,000 per year usually stays inside the 22% or 24% bracket. Push extra distributions into years when your other income drops, such as between jobs, during a sabbatical, or in the years before Social Security starts. Watch the bracket thresholds themselves, not just the rates, because the marginal jump only applies to the dollars over the line.
One trap catches non-spouse beneficiaries early: some 401(k) plans won’t hold an inherited account at all. The plan may force a lump-sum payout or a quick transfer, which eliminates any chance to spread the tax hit. Read the plan document right after the death, and if a transfer is allowed, use a direct trustee-to-trustee move into an inherited IRA. That preserves the full ten years to plan around.
Who Still Gets to Stretch
The SECURE Act carved out five categories of Eligible Designated Beneficiaries who can still take distributions over their own life expectancy using the IRS Single Life Expectancy Table:3Internal Revenue Service. Retirement Topics – Beneficiary4Internal Revenue Service. Required Minimum Distributions for IRA Beneficiaries
- Surviving spouses, who also have the rollover options described above.
- Minor children of the account owner, but only until age 21, when the 10-year rule takes over for the remaining balance. This covers the owner’s own children, not grandchildren or other minors.
- Disabled individuals, defined as unable to engage in substantial gainful activity due to a medically determinable condition.
- Chronically ill individuals, certified as unable to perform at least two activities of daily living for an indefinite period.
- Anyone not more than 10 years younger than the account owner, which typically covers close-in-age siblings, partners, or friends.
For disabled and chronically ill beneficiaries, the stretch lasts a lifetime, which is the most valuable long-term deferral available to any non-spouse heir. The Single Life Expectancy Table produces small annual withdrawals, keeping most of the account invested and growing tax-deferred for decades.
Inherited Roth 401(k) Money
If the account holds Roth contributions, the 10-year deadline still applies to non-spouse beneficiaries, but the tax stakes fall away. Qualified Roth distributions come out federal-income-tax-free, so the best move is usually to leave the money alone as long as possible and take the balance near the end of year ten, letting it grow tax-free the whole time.
The condition is the five-year rule. For distributions to be fully tax-free, the original owner must have made their first Roth contribution at least five tax years before the distribution, and the beneficiary inherits that clock.3Internal Revenue Service. Retirement Topics – Beneficiary If the five years haven’t run, the earnings portion of a distribution is taxable as ordinary income, though no early withdrawal penalty applies.
Net Unrealized Appreciation on Employer Stock
If the inherited 401(k) holds appreciated stock in the deceased employee’s company, Net Unrealized Appreciation can convert what would be ordinary income into long-term capital gains. The top federal rate on long-term gains is 20%, versus 37% on ordinary income, so the swing is real.
The mechanics: instead of rolling the employer shares into an inherited IRA with the rest of the balance, the beneficiary distributes those shares into a taxable brokerage account. The stock’s original cost basis is taxed as ordinary income in the year of distribution. The appreciation that built up inside the plan is taxed at long-term capital gains rates whenever the shares are eventually sold, no matter how briefly the beneficiary holds them.5Office of the Law Revision Counsel. 26 USC 402 – Taxability of Beneficiary of Employees Trust
NUA requires a lump-sum distribution of the entire 401(k) balance in a single tax year, and death is a qualifying triggering event under the statute. There’s no stepped-up basis on the employer stock, so the original cost basis stays part of the calculation. The strategy is only worth the complexity when the gap between cost basis and current market value is large; for stock that barely appreciated, rolling everything into an inherited IRA is simpler and roughly as efficient.
Qualified Charitable Distributions
Beneficiaries who are at least 70½ and give to charity can use qualified charitable distributions to send money directly from an inherited IRA to a qualifying 501(c)(3). The distribution satisfies any required withdrawal for the year and never enters your taxable income. The 2026 annual limit is $111,000 per individual.
The money must move directly from the IRA custodian to the charity. If it passes through your hands first, it’s a taxable distribution even if you donate it the next day. QCDs are available from inherited traditional IRAs, so if you’ve already transferred the 401(k) into an inherited IRA, the option is on the table. This is often the cleanest way for higher-income beneficiaries to trim the taxable share of an inherited account, because it removes the income entirely rather than relying on the itemized charitable deduction.
When a Trust Is the Named Beneficiary
Some estate plans name a trust as the 401(k) beneficiary for control or asset-protection reasons. The tax risk is that trusts hit the top federal bracket at just $15,650 of retained income in 2026, far faster than any individual filer.
A conduit trust passes every distribution straight through to the individual beneficiary, who pays tax at their own rate. This avoids the compressed trust brackets but gives the beneficiary unrestricted access. An accumulation trust can retain distributions inside the trust, which preserves control but means the trust itself pays tax at those steep rates on whatever it doesn’t distribute. Either way, the 10-year rule still applies.
For a responsible adult beneficiary, being named directly is usually simpler and more tax-efficient than routing the account through a trust. Trusts earn their keep when the beneficiary is a minor, has special needs, or genuinely can’t manage a large sum.
Move the Money the Right Way
How you move an inherited 401(k) is itself a tax decision. Use a direct rollover: the plan administrator sends the funds straight to the receiving custodian, you never touch the money, and nothing is withheld.6Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions
An indirect rollover, where the plan cuts you a check, triggers mandatory 20% federal withholding.7eCFR. 26 CFR 31.3405(c)-1 – Withholding on Eligible Rollover Distributions To complete the rollover, you have to deposit the full original balance into the new account within 60 days, covering that withheld 20% out of pocket, and claim the withheld amount as a credit later. Miss the 60-day window and the whole distribution becomes taxable.6Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions
For a non-spouse beneficiary, the receiving account must be titled as an inherited IRA showing both the deceased owner and the beneficiary. A titling error can cause the IRS to treat the entire transfer as a taxable distribution, so confirm the exact wording with the receiving custodian before the funds move.
Don’t Miss a Required Distribution
Missing a required distribution, whether an annual RMD during the 10-year period or the year-ten liquidation, triggers a 25% excise tax on the amount that should have come out.8Office of the Law Revision Counsel. 26 USC 4974 – Excise Tax on Certain Accumulations in Qualified Retirement Plans SECURE Act 2.0 drops the penalty to 10% if you correct the shortfall within a two-year window by taking the missed amount and filing Form 5329 reflecting the reduced penalty.9Internal Revenue Service. Instructions for Form 5329 The IRS can also waive the penalty for reasonable cause, such as bad advice from the plan administrator or a medical emergency.
The most expensive mistake is forgetting the 10-year deadline entirely. An owner who died in 2020 sets a December 31, 2030 deadline for the beneficiary. The IRS doesn’t send reminders, and most custodians don’t either. Put a calendar alert at the nine-year mark so you can plan the final distribution around your other income instead of dumping it into whatever bracket year ten happens to bring.