You cannot fully avoid taxes on an inherited 401(k) funded with pre-tax dollars, because every distribution counts as ordinary income on your federal return. What you can control is how the money moves out of the plan and across how many tax years, and those two choices can swing the total tax bill by tens of thousands of dollars. Spouses have the widest set of options, including rolling the inherited funds into their own retirement account and delaying withdrawals for years. Everyone else works within a ten-year deadline but still has real room to manage brackets. Here is how to think through the decision on how to avoid taxes on an inherited 401(k), starting with the relationship that matters most: yours to the person who died.
If You Are the Surviving Spouse
Spouses get options no other beneficiary receives, and the right one depends on whether you need the money before age 59½.
The strongest deferral is a spousal rollover. You move the inherited 401(k) into your own IRA or 401(k), the IRS treats the assets as if they had always been yours, and nothing is taxed until you withdraw it. Required Minimum Distributions do not 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 Once RMDs begin, they are calculated from the Uniform Lifetime Table, which produces smaller annual withdrawals than the table used for beneficiaries.2Internal Revenue Service. Retirement Plan and IRA Required Minimum Distributions FAQs
The alternative is to keep the account as an inherited IRA titled in the decedent’s name. This is the right move if you are under 59½ and need access. Distributions from an inherited IRA are exempt from the 10% early withdrawal penalty at any age.3Internal Revenue Service. Retirement Topics – Beneficiary The same withdrawal from your own IRA before 59½ would trigger that penalty on top of the income tax.
With an inherited IRA, you can delay RMDs until the year the original owner would have reached their RMD age, or start distributions immediately based on your own life expectancy. Many spouses use this as a bridge: pull penalty-free income during their 50s, then roll the remaining balance into their own IRA after 59½ to get the longer deferral. If you are already past your own RMD age, the rollover is almost always better, because the Uniform Lifetime Table produces smaller required withdrawals and leaves more money invested.
The 10-Year Rule for Everyone Else
The 2019 SECURE Act ended lifetime stretch distributions for most non-spouse beneficiaries. If the original owner died after December 31, 2019, and you do not fall into one of the narrow exception categories, the account must be empty by December 31 of the year containing the tenth anniversary of the death.3Internal Revenue Service. Retirement Topics – Beneficiary
Whether you also owe annual distributions inside those ten years depends on the owner’s status at death. If the owner died before their required beginning date, years one through nine are flexible: take as much or as little as you want, provided the account is empty by the end of year ten.2Internal Revenue Service. Retirement Plan and IRA Required Minimum Distributions FAQs If the owner had already started RMDs, you must take annual distributions in years one through nine and clear the balance in year ten.
Check the plan document immediately. Many 401(k) plans do not offer inherited account options for non-spouse beneficiaries and require either a lump-sum payout or a transfer to an inherited IRA within a set window. A forced lump sum wipes out any ability to spread income across years. Where a transfer is allowed, a direct trustee-to-trustee move to an inherited IRA hands you full control over distribution timing inside the ten-year window.
Who Still Gets to Stretch Distributions
Not every non-spouse beneficiary is locked into the ten-year clock. The SECURE Act preserved lifetime stretch treatment for a category called Eligible Designated Beneficiaries, which covers five groups:3Internal Revenue Service. Retirement Topics – Beneficiary
- Surviving spouses, who also have the rollover options above.
- Minor children of the account owner, who take life-expectancy distributions until age 21, then shift to the 10-year rule for the remaining balance. This applies to the owner’s own children, not grandchildren.
- Disabled individuals, meaning those 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 ten years younger than the owner, which typically covers close-in-age siblings, partners, and friends.
For disabled and chronically ill beneficiaries, the stretch runs for life, which is the most valuable long-term deferral available to any non-spouse heir. All non-spouse Eligible Designated Beneficiaries calculate annual RMDs from the IRS Single Life Expectancy Table, which produces small required withdrawals relative to the balance and keeps most of the account growing tax-deferred.4Internal Revenue Service. Required Minimum Distributions for IRA Beneficiaries
Timing Withdrawals to Stay in Lower Brackets
For non-spouse beneficiaries stuck with the ten-year rule, this is the single most effective tax move. Every dollar from an inherited traditional 401(k) stacks on top of your other income, so a large withdrawal in a high-income year pushes the top slice of your income into a higher bracket.
The federal brackets are graduated. For 2026, single filers pay 10% on the first $12,400, then 12%, 22%, 24%, 32%, 35%, and finally 37% above $640,600. Married couples filing jointly get roughly double those thresholds.5Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026 The strategy is to fill lower brackets each year rather than let the account grow untouched and force a massive taxable distribution in year ten.
Consider a $500,000 inherited 401(k) when your salary already puts you in the 22% bracket. Take nothing for nine years and drain it in year ten, and that lump sum easily pushes you into the 35% or 37% bracket. Spread across ten years at $50,000 per year, much of that income stays in the 22% or 24% bracket. The math gets even better in years when your regular income dips: a year between jobs, a sabbatical, or the gap between early retirement and Social Security.
Watch bracket boundaries closely, not just headline rates. Taking $5,000 more than needed to cross into the next bracket costs you the higher rate on that extra amount. For large inherited accounts, projecting your income across the full ten years produces a much better result than making decisions in April each year.
Employer Stock and Net Unrealized Appreciation
If the 401(k) holds appreciated stock from the account owner’s employer, a strategy called Net Unrealized Appreciation can turn what would be ordinary income into long-term capital gains. The top federal rate on long-term capital gains is 20%, compared to 37% for ordinary income, so the potential savings are large.
Instead of rolling the employer stock into an inherited IRA with the rest of the balance, you separate those shares and distribute them into a taxable brokerage account. The original cost basis is taxed as ordinary income in the year of distribution, but 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 long you hold them after distribution.6Office 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. The employee’s death qualifies as a triggering event under the statute. The beneficiary does not receive a stepped-up basis on the employer stock, so both the cost basis and the appreciation stay in the tax calculation, and any further appreciation after the shares leave the plan follows normal capital gains holding-period rules. The strategy is only worth pursuing when the gap between cost basis and current market value is substantial. For accounts where employer stock grew over decades, NUA can save tens of thousands compared to paying ordinary income rates on every withdrawal from an inherited IRA.
Inherited Roth 401(k) Accounts
If the inherited 401(k) is a Roth, the ten-year deadline still applies to non-spouse beneficiaries, but the tax pressure largely disappears. Qualified Roth distributions come out federal-income-tax-free. The usual move is to leave the money invested as long as possible and take the full distribution near the end of the ten-year window, capturing another decade of tax-free growth.
The catch is the five-year rule. For Roth 401(k) distributions to be fully tax-free, the original owner must have made their first Roth contribution at least five tax years before the distribution. The clock starts at the beginning of the tax year of that first contribution, and the beneficiary inherits the owner’s timeline.3Internal Revenue Service. Retirement Topics – Beneficiary If the five years have not passed, the earnings portion of a distribution is taxable as ordinary income, though no early withdrawal penalty applies to inherited accounts. Where the five-year period is already satisfied, the inherited Roth balance is genuinely tax-free.
Qualified Charitable Distributions
Beneficiaries who are at least 70½ and charitably inclined have another option. A Qualified Charitable Distribution sends money directly from an inherited IRA to a qualifying 501(c)(3) charity, satisfies your required withdrawal for the year, and does not count as taxable income. The annual QCD limit is $111,000 per individual in 2026.
The distribution must go straight from the IRA custodian to the charity. If the money passes through your hands first, it becomes taxable income even if you donate it the same day. QCDs work from inherited traditional IRAs, so if you have already moved the 401(k) into an inherited IRA, the option is available. For high-income beneficiaries trying to manage their bracket inside the ten-year rule, this is one of the cleanest ways to remove income from the return entirely, cleaner than taking a taxable distribution and then claiming a charitable deduction that requires itemizing.
Moving the Money Without Triggering Tax
How you move the money matters almost as much as when you withdraw it. Use a direct rollover: the plan administrator sends the funds straight to the custodian of the receiving account, you never touch the money, nothing is withheld, and the full balance stays intact.7Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions
An indirect rollover, where the plan cuts you a check, triggers mandatory 20% federal income tax withholding.8eCFR. 26 CFR 31.3405(c)-1 – Withholding on Eligible Rollover Distributions To complete the rollover, you have to deposit the full original amount into the new account within 60 days, using your own funds to replace the 20% that was withheld. Deposit only the 80% you received and the missing 20% becomes a taxable distribution.7Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions You get the withholding back as a credit at tax time, but you need to front the cash in the meantime. Miss the 60-day window and the entire distribution becomes taxable. Direct rollover avoids all of this.
For a non-spouse beneficiary, the receiving account must be titled as an inherited IRA in a format that clearly identifies the deceased owner and the beneficiary. Confirm the exact titling with the receiving custodian before the transfer. Incorrect titling can cause the IRS to treat the whole move as a taxable distribution.
The Penalty for Missing a Required Distribution
Failing to take a required distribution, whether an annual RMD during the ten-year period or the final year-ten liquidation, triggers a 25% excise tax on the amount you should have withdrawn.9Office of the Law Revision Counsel. 26 USC 4974 – Excise Tax on Certain Accumulations in Qualified Retirement Plans On a $200,000 missed distribution, that is a $50,000 penalty on top of the income tax you still owe.
SECURE Act 2.0 added a safety valve. Correct the shortfall within a two-year correction window and the penalty drops from 25% to 10%.9Office of the Law Revision Counsel. 26 USC 4974 – Excise Tax on Certain Accumulations in Qualified Retirement Plans Correcting means taking the missed distribution and filing Form 5329 with your return showing the reduced penalty.10Internal Revenue Service. Instructions for Form 5329 The IRS can also waive the penalty entirely for reasonable cause, such as incorrect advice from the plan administrator or a medical emergency.
The most dangerous scenario is forgetting the ten-year deadline altogether. If the owner died in 2020, the balance must be gone by December 31, 2030. The IRS sends no reminders, and many custodians do not either. Put the date on your own calendar, with an alert set a full year out, so the final distribution fits your tax plan instead of landing all at once in a single high-bracket year.