How Is an Inherited 401(k) Taxed When You Cash It Out? (w/Examples) + FAQs

This article reflects federal rules and general state rules as of June 2026 and covers tax year 2025 (the return most people are filing now). Tax law changes — confirm current figures with IRS.gov before you file.

Quick Answer

Yes — cashing out an inherited traditional 401(k) is taxed as ordinary income in the year you take the money, added on top of your other 2025 income. You owe no 10% early-withdrawal penalty because the owner died, but a large lump sum can push you into a higher bracket. Inherited Roth 401(k) money is usually tax-free.

When you cash out a pre-tax 401(k) you inherited, the IRS treats every dollar as taxable income to you, not to the person who died, and a $200,000 lump sum can land you in the 37% federal bracket for that single year. The money was never taxed while it grew, so the tax bill comes due the moment it leaves the account — and grief plus a deadline is a brutal combination for a financial decision.

Timing is everything here. A 2025 Vanguard analysis found that a majority of non-spouse heirs drain inherited retirement accounts within the first year, often triggering thousands in avoidable tax — so understanding your options before you click “withdraw all” can be worth more than the account’s investment returns.

💵 How an inherited 401(k) is taxed when you take a lump sum, anchored to 2025 brackets.
🧭 Which beneficiary type you are — spouse, non-spouse, or estate — and why it changes everything.
⏳ How the SECURE Act 10-year rule and the new 2025 annual-RMD penalty can cost you 25%.
📈 The Roth, NUA, and “spread it out” moves that legally cut your tax bill.
⚠️ The 7 most expensive mistakes heirs make — and exactly how to avoid each one.

What “Inherited 401(k)” Really Means

An inherited 401(k) is an employer retirement account that passes to you because the original owner — called the participant — died. You receive it as a beneficiary, the person named on the plan’s beneficiary form. That form, not the will, controls who gets the account, which surprises many families.

There are two flavors, and the tax outcome splits sharply between them. A traditional (pre-tax) 401(k) was funded with money that was never taxed, so withdrawals are fully taxable as ordinary income. A Roth 401(k) was funded with after-tax money, so qualified withdrawals come out tax-free.

The plan is run by a plan administrator — usually the late owner’s employer or a recordkeeper like Fidelity or Vanguard. The administrator decides what payout options it offers, issues the tax form, and pays whoever the beneficiary form names. You cannot get the money until you contact them, prove the death, and choose a payout method.

Here is the key idea to hold onto: inheriting the 401(k) is not a taxable event by itself. The tax is triggered only when money comes out of the account. So your real question is not “how is it taxed when I inherit it” but “how is it taxed when I cash it out” — and that depends on who you are, what kind of 401(k) it is, and when you pull the money.

Why Cashing Out Triggers Ordinary Income Tax

A traditional 401(k) grows tax-deferred, which means no one ever paid income tax on the contributions or the gains. When the owner dies, that deferred tax does not disappear — it simply transfers to you. The IRS calls this income in respect of a decedent (IRD), and it is taxed to the person who finally receives it.

The consequence is concrete: if you cash out the whole account, the entire taxable balance is added to your gross income for that one tax year. On a $150,000 account, that could mean an extra $30,000–$50,000 in federal tax, depending on your other income. The plan reports the payout to you and the IRS on Form 1099-R, and you must report it on your Form 1040.

A common misconception is that inherited retirement money gets the same “step-up in basis” that inherited stock or a house gets. It does not. A pre-tax 401(k) has no basis to step up, so you pay full ordinary-income tax on every dollar — there is no escaping it by waiting for death.

What you should do: before requesting any distribution, ask the plan administrator for the exact taxable balance and whether any after-tax contributions exist. Then estimate the tax at your marginal rate so the bill does not blindside you in April. If the account is large, model the withdrawal before you take it.

The 10% Penalty: When It Applies and When It Doesn’t

The dreaded 10% early-withdrawal penalty applies when you pull money from your own retirement account before age 59½. It exists to discourage people from raiding their own retirement savings early.

The good news for heirs: death is an exception. Under IRS rules on early distributions, distributions made to a beneficiary after the account owner’s death are not subject to the 10% penalty — regardless of your age. A 30-year-old who inherits a parent’s 401(k) and cashes it out owes income tax but no 10% penalty.

There is one trap. If you are a surviving spouse and you roll the inherited 401(k) into your own IRA (treating it as yours), the money loses its “inherited” status. After that, if you withdraw before age 59½, the 10% penalty does apply. So a young widow or widower who needs the cash should think twice before rolling it over.

What you should do: confirm the distribution is coded as a death distribution on your Form 1099-R (look for code “4” in Box 7). If the code is wrong, the IRS computer may bill you the penalty, and you will have to fix it by filing Form 5329 to claim the exception.

Which Situation Applies to You?

The single biggest factor in your tax outcome is what kind of beneficiary you are. Find yourself below, then read the section that fits.

You are the surviving spouse: You have the most options. You can roll it into your own IRA, keep it as an inherited account, or take the cash. Read “Surviving Spouse Options.”
You are a non-spouse (adult child, sibling, friend): You generally cannot roll it into your own IRA. You move it to an inherited IRA and must empty it within 10 years. Read “Non-Spouse Beneficiaries and the 10-Year Rule.”
You are an “eligible designated beneficiary” (minor child of the owner, disabled or chronically ill person, or someone less than 10 years younger than the owner): You may stretch withdrawals over your life expectancy. Read “Eligible Designated Beneficiaries.”
The estate or a non-qualifying trust is the beneficiary: Faster payout deadlines apply (often 5 years), and the estate may pay the tax at compressed trust rates. Read “When the Estate Inherits.”

Matching yourself to the right category before you act prevents the most expensive mistakes, because each path has different deadlines and different tax math.

Surviving Spouse Options

A surviving spouse has the widest menu, and the right choice depends on age and cash needs. Option 1: spousal rollover. You move the money into your own IRA or 401(k), and it is treated as if it were always yours — taxed only when you withdraw, with required distributions starting at your age 73.

Option 2: keep it as an inherited account. This is smart if you are under 59½ and might need the money, because withdrawals stay penalty-free. Option 3: cash it out, which is fully taxable as ordinary income in the year received but penalty-free.

The consequence of choosing wrong is real money. A 50-year-old widow who rolls $300,000 into her own IRA and then withdraws $40,000 for living expenses owes a $4,000 penalty (10%) plus income tax — a penalty she would have avoided by keeping it as an inherited account.

What you should do: if you are over 59½ and want lifetime tax deferral, roll it over. If you are under 59½ and may need the cash, keep it inherited until you turn 59½, then roll it over. Coordinate with a CPA or financial advisor before signing rollover paperwork — it is hard to undo.

Non-Spouse Beneficiaries and the 10-Year Rule

If you inherited from anyone other than your spouse — most often a parent — the SECURE Act of 2019 changed your life. The old “stretch” strategy that let heirs spread withdrawals over decades is gone for most people. Instead, you face the 10-year rule: the entire account must be emptied by December 31 of the 10th year after the owner’s death.

You cannot roll an inherited 401(k) into your own IRA. Your choices are to move it to an inherited IRA (also called a beneficiary IRA) or take the cash directly from the plan. The inherited IRA keeps the money invested and lets you control the timing of withdrawals across the decade.

Here is the 2025 wrinkle that catches people. If the original owner had already started their own required minimum distributions (RMDs) before death — generally meaning they were past their RMD age — you must take a small annual RMD in years 1 through 9, and empty the account by year 10. If the owner died before their RMD age, you skip the annual RMDs and only face the year-10 deadline.

What you should do: ask the administrator whether the owner had “reached their required beginning date.” Then mark December 31 of year 10 on your calendar, and decide whether to spread withdrawals evenly (to smooth the tax) or wait. Spreading is usually smarter, because it keeps each year’s income out of the top brackets.

The 2025 Annual-RMD Penalty Trap

This is the rule that bites in 2025. For years after the SECURE Act passed, the IRS waived enforcement of the annual RMDs inside the 10-year window. That waiver ended. Starting in tax year 2025, affected non-spouse heirs must take their annual RMD or face a penalty, per CNBC’s reporting.

The penalty is steep: 25% of the amount you failed to withdraw. Miss a $10,000 RMD and the excise tax alone is $2,500 — on top of the income tax you still owe once you take it. This is one of the harshest penalties in the tax code.

There is mercy built in. If you correct the shortfall — withdraw the missed amount and file Form 5329 — within the two-year “correction window,” the penalty drops from 25% to 10%. You can also attach a letter requesting a full waiver for reasonable cause, and the IRS often grants it for first-time, honest mistakes.

What you should do: if you are subject to annual RMDs, set up an automatic withdrawal each year so you never miss one. If you already missed a 2025 RMD, withdraw it now, file Form 5329 for that year, and attach a short explanation asking for a waiver — do not wait for the IRS to find you.

Eligible Designated Beneficiaries

A small group of heirs still escapes the 10-year rule. The SECURE Act created a category called eligible designated beneficiaries (EDBs) who may “stretch” withdrawals over their own life expectancy, spreading the tax across many years.

You qualify as an EDB if you are the surviving spouse, a minor child of the owner (only until age 21, then the 10-year clock starts), a disabled or chronically ill individual, or someone not more than 10 years younger than the owner. A grandchild does not qualify as a minor-child EDB — only the owner’s own minor children do.

The benefit is large. Stretching withdrawals over, say, 30 years means each year’s taxable slice is small, often keeping you in a low bracket. A disabled beneficiary inheriting $400,000 might withdraw roughly $15,000–$20,000 a year instead of a single $400,000 tax bomb.

What you should do: gather proof of your EDB status — a birth certificate for a minor, a doctor’s statement or Social Security disability award for disability. Give it to the plan administrator before the first distribution so they set up the correct stretch schedule.

When the Estate Inherits

Sometimes no living beneficiary is named, or the owner named their estate. This is usually the worst tax outcome, and it is worth understanding so you avoid it in your own planning.

When the estate is the beneficiary and the owner died before their required beginning date, the account generally must be emptied within 5 years, not 10. That compresses the taxable income into a shorter window, raising the rate. If the estate cashes out the 401(k), the income lands on the estate’s Form 1041 fiduciary return — and trust/estate tax brackets reach the top 37% rate at only about $15,650 of income for 2025.

The estate’s personal representative (executor) can sometimes pass the income out to the heirs by distributing the cash, so it is taxed at the heirs’ lower individual rates instead. This requires care and usually a tax professional. Whether the estate can even claim the account depends on the beneficiary designation on file, as a North Carolina probate attorney explains.

What you should do: if you are the executor, do not cash out the 401(k) reflexively to pay estate bills. First confirm whether a live beneficiary is named (they get paid directly, bypassing the estate), and consult an estate attorney about distributing income to heirs to avoid the compressed brackets.

Worked Examples With Real Dollar Figures

Numbers make this real. The examples below use the 2025 federal tax brackets and the 2025 standard deduction of $15,750 for single filers and $31,500 for married-filing-jointly (as adjusted by the One Big Beautiful Bill Act). State tax is separate and covered later.

Example 1: Maria takes the full lump sum

Maria, single, earns $70,000 a year. Her father dies and leaves her a $150,000 traditional 401(k). She cashes out the entire amount in 2025.

Her total income becomes $70,000 + $150,000 = $220,000. After the $15,750 standard deduction, her taxable income is about $204,250. That pushes her top dollars into the 32% bracket. The $150,000 inheritance alone is taxed across the 22%, 24%, and 32% brackets — roughly $42,000 in extra federal tax, plus no 10% penalty. Had she earned only $70,000, much of that money would have been taxed far lower.

Example 2: James spreads it over 10 years

James, single, earns $60,000. He inherits the same $150,000 traditional 401(k) but moves it to an inherited IRA and withdraws about $15,000 each year for 10 years.

Each $15,000 slice stacks on his $60,000 income, landing mostly in the 22% bracket — about $3,300 of federal tax per year, or roughly $33,000 total over the decade. By spreading, James saves about $9,000 versus Maria’s lump sum, and his money keeps growing tax-deferred in the meantime.

Example 3: Priya inherits a Roth 401(k)

Priya inherits a $150,000 Roth 401(k) from her aunt. Because Roth contributions were already taxed and the account was open more than five years, her withdrawals are qualified and tax-free.

Priya still must empty the account within 10 years under the SECURE Act, but she owes $0 in income tax on the $150,000. Her only “cost” is losing future tax-free growth once the money leaves the account — so she may choose to wait until year 10 to withdraw and let it grow tax-free as long as possible.

Three Common Scenarios at a Glance

The tables below show how the same $150,000 traditional 401(k) plays out under three common situations, using 2025 rules.

Scenario A — Non-spouse takes a lump sum

What You Do	What It Costs You
Cash out all $150,000 in one year	Entire amount taxed as ordinary income, often spiking into the 32%+ bracket
Skip the inherited IRA option	Lose the chance to spread tax over 10 years
No 10% penalty (death exception)	Saves the early-withdrawal penalty, but income tax still applies

Scenario B — Non-spouse spreads over 10 years

What You Do	What It Costs You
Move funds to an inherited IRA	Money keeps growing tax-deferred
Withdraw roughly equal amounts yearly	Each slice taxed at a lower marginal rate
Empty the account by December 31 of year 10	Miss the deadline and the full balance is forced out, taxed at once

Scenario C — Surviving spouse rolls it over

What You Do	What It Costs You
Roll into your own IRA	Full tax deferral until your own RMD age of 73
Withdraw before age 59½ after rollover	10% early-withdrawal penalty now applies
Keep as inherited account instead	Penalty-free access, but RMD rules differ

Federal vs. State: Does Your State Tax It Too?

Everything above is federal law. Your state usually taxes inherited 401(k) distributions as ordinary income too, but the rules vary sharply, so never assume your state mirrors the IRS.

Most states with an income tax treat a cashed-out traditional 401(k) as taxable income, just like the feds. A handful of states are far friendlier. Pennsylvania, for example, generally does not tax retirement distributions, and inherited retirement accounts are typically exempt from its income tax.

If you live in a no-income-tax state — Florida, Texas, Tennessee, Nevada, South Dakota, Wyoming, Alaska, Washington (wages), or New Hampshire (which taxes only certain investment income) — you owe no state income tax on the cash-out at all. That can save thousands compared with a high-tax state like California, where the top rate exceeds 13%.

Tax Question	Federal	Typical State
Lump-sum cash-out taxed as ordinary income?	Yes	Usually yes (varies; PA often exempt)
10% early-withdrawal penalty after death?	No	No
No-income-tax state owes anything?	Federal still applies	No state tax

What you should do: look up your state’s treatment on your state department of revenue page, or ask a local CPA. If you can choose when to take the money and you plan to move to a no-tax state, timing the withdrawal after the move can cut the state bill to zero.

The NUA Strategy for Employer Stock

If the inherited 401(k) holds employer stock that grew a lot, there is a powerful and often-missed move called net unrealized appreciation (NUA). NUA is the difference between what the stock cost inside the plan (the basis) and its current market value.

Here is how it works for an heir, as Kiplinger explains. You take a lump-sum distribution of the whole account in one calendar year, move the company stock into a regular brokerage account, and roll the rest into an inherited IRA. You pay ordinary income tax only on the stock’s cost basis. The appreciation is taxed later, at lower long-term capital-gains rates, when you sell.

The savings can be huge. Say the stock cost $100,000 inside the plan but is now worth $500,000. With NUA, you pay ordinary tax on just $100,000 now; the $400,000 gain is taxed at capital-gains rates (0%, 15%, or 20%) when sold — instead of all $500,000 at ordinary rates. There is no step-up on the NUA portion, per Morgan Stanley’s NUA guide.

What you should do: before rolling anything over, check whether the 401(k) holds appreciated company stock. If it does, talk to a CPA first, because once the stock lands in an IRA, the NUA break is lost forever. The whole account must be distributed in one calendar year to qualify.

Mistakes to Avoid

Each error below has cost real heirs real money. Watch for all seven.

Cashing out the entire account in one year. This is the most common and most expensive mistake; it can push you into the 32% or 37% bracket and inflate your tax by tens of thousands.
Rolling an inherited 401(k) into your own IRA when you are a non-spouse. Non-spouses cannot do this; the IRS treats the entire amount as an immediate taxable distribution.
Missing the 2025 annual RMD. The penalty is 25% of the shortfall, reduced to 10% only if you fix it within two years and file Form 5329.
Blowing the 10-year deadline. If you do not empty the account by December 31 of year 10, the remaining balance is forced out and taxed all at once.
Rolling appreciated employer stock into an IRA. This destroys the NUA capital-gains break permanently, costing you the difference between ordinary and capital-gains rates.
Assuming you get a step-up in basis. A pre-tax 401(k) has no basis to step up, so every dollar is taxable — planning around a step-up leads to a nasty surprise.
Forgetting state income tax. Many heirs budget for federal tax only and get a second bill from their state, which can add 5%–13% more.

Do’s and Don’ts

A few simple rules keep you out of trouble.

Do contact the plan administrator first to learn your payout options and the exact taxable balance — because you cannot plan without the real numbers.
Do confirm what beneficiary type you are, since spouses, non-spouses, and EDBs face completely different rules.
Do consider spreading withdrawals across the 10-year window to smooth your tax brackets.
Do set up automatic annual RMDs if you are subject to them, so you never trigger the 25% penalty.
Do check for employer stock before any rollover, because the NUA break disappears once stock enters an IRA.
Don’t cash out in a panic; the deadline is years away for most heirs, and rushing usually costs the most tax.
Don’t roll an inherited account into your own IRA unless you are the surviving spouse.
Don’t ignore your state’s rules, because conformity to federal law is not guaranteed.
Don’t assume the will controls — the beneficiary form on file with the plan wins.
Don’t skip a CPA for a large or stock-heavy account; one wrong move can cost more than the fee.

Pros and Cons of Cashing Out in a Lump Sum

Sometimes a lump sum makes sense — but weigh both sides.

Pro: You get all the cash immediately, useful for paying off high-interest debt or a mortgage.
Pro: No 10% penalty applies, because death is an exception to the early-withdrawal rule.
Pro: You simplify your life — no inherited IRA to manage or RMDs to track for a decade.
Pro: You remove the risk of forgetting the 10-year deadline later and facing a forced payout.
Pro: If you live in a no-income-tax state, the state cost is zero, making the lump sum less painful.
Con: The entire taxable balance hits your income in one year, often spiking your bracket.
Con: You lose years of tax-deferred (or tax-free Roth) growth on the money.
Con: The income spike can reduce other benefits, raise Medicare premiums, or phase out credits.
Con: You may owe a large estimated-tax payment or face an underpayment penalty.
Con: Once cashed out, the decision is irreversible — you cannot put the money back.

What to Do Next

If you have just inherited a 401(k), take these steps in order.

Contact the plan administrator and report the death; ask for the account balance, whether it is traditional or Roth, your payout options, and whether the owner had started RMDs.
Identify your beneficiary type — spouse, non-spouse, EDB, or estate — using the “Which situation applies to you?” guide above.
Gather your records: the death certificate, your ID and Social Security number, the beneficiary designation, and prior-year account statements.
Decide on timing — lump sum versus spreading over 10 years — by estimating the tax at your marginal bracket before you withdraw.
If subject to annual RMDs, set up automatic withdrawals so you never miss one and trigger the penalty.
Call a CPA or tax attorney if the account is large (over roughly $100,000), holds employer stock, or passes through an estate or trust — that help typically costs a few hundred dollars and can save many thousands.

Frequently Asked Questions

Is an inherited 401(k) taxable when I cash it out? Yes. A traditional (pre-tax) inherited 401(k) is taxed as ordinary income in the year you withdraw it, for tax year 2025. Inherited Roth 401(k) money is generally tax-free if the account was open at least five years.

Do I pay the 10% early-withdrawal penalty on an inherited 401(k)? No. Distributions to a beneficiary after the owner’s death are exempt from the 10% penalty at any age. The exception is lost if a surviving spouse rolls the money into their own IRA and then withdraws before age 59½.

How much tax will I owe on a $100,000 inherited 401(k)? It depends on your bracket. For 2025, $100,000 stacked on a typical $60,000 salary is taxed across the 22%–32% brackets, often producing roughly $25,000–$30,000 in federal tax, plus any state tax.

What is the 10-year rule for inherited 401(k)s? The account must be emptied within 10 years. For most non-spouse heirs of owners who died after 2019, the entire balance must be withdrawn by December 31 of the 10th year after death.

Do I have to take money out every year? Sometimes. Starting in tax year 2025, if the original owner had already begun RMDs, non-spouse heirs must take an annual RMD during the 10-year window or face a 25% penalty on the missed amount.

What is the penalty for missing an inherited 401(k) RMD? 25% of the amount you failed to withdraw. The penalty drops to 10% if you correct the shortfall and file Form 5329 within two years; the IRS may waive it for reasonable cause.

Can a non-spouse roll an inherited 401(k) into their own IRA? No. Only a surviving spouse may roll it into their own IRA. A non-spouse must use an inherited (beneficiary) IRA or take a taxable distribution.

Is an inherited Roth 401(k) tax-free? Yes, usually. Qualified withdrawals from an inherited Roth 401(k) are tax-free if the account was open at least five years. The 10-year emptying rule still applies, but no income tax is due.

Does my state tax an inherited 401(k)? Usually, but not always. Most income-tax states tax the cash-out as ordinary income; Pennsylvania often exempts it, and no-income-tax states impose no state tax at all. Check your state revenue agency.

Who reports the inherited 401(k) on their taxes? The person who receives the money. The plan issues Form 1099-R to the beneficiary or estate that took the distribution, and that recipient reports it as income.

What if the estate, not a person, is the beneficiary? Faster payout and possibly higher tax. An estate beneficiary often must empty the account within 5 years, and income taxed on the estate’s Form 1041 hits the 37% bracket at about $15,650 for 2025.

Can I avoid taxes by not touching the inherited 401(k)? No, only delay them. You can defer tax by leaving traditional funds invested in an inherited IRA, but you must still withdraw and pay tax on the full balance by the end of the 10-year window.

Related reading