How Is an Inherited 403(b) Taxed? (w/Examples) + FAQs

Currency note: This article reflects federal rules and a general overview of state rules as of June 2026, and covers tax year 2025 and the 2026 filing season. Tax law changes often — confirm current figures with IRS Publication 571 before you file. This is educational information, not personal tax, legal, or financial advice. For a large account, a missed deadline, or a trust as beneficiary, talk to a CPA, tax attorney, or estate attorney.

Quick Answer

Money from an inherited traditional 403(b) is taxed as ordinary income to you in the year you withdraw it — not when you inherit it. For tax year 2025, most non-spouse heirs must empty the account within 10 years. The 10% early-withdrawal penalty never applies to inherited funds. Inherited Roth 403(b) withdrawals are usually tax-free.

When someone leaves you a 403(b), you do not owe tax the day you inherit it, but every dollar you pull from a traditional (pre-tax) inherited 403(b) lands on your tax return as ordinary income, which can push you into a higher bracket in a single year. The account also comes with a hard deadline — for most people who inherited in 2020 or later, the whole balance must be gone within 10 years, and missing a required withdrawal can cost a penalty of up to 25% of the amount you skipped.

The rules changed a lot under the SECURE Act and SECURE 2.0, and the IRS final regulations took full effect on January 1, 2025 — so guidance you read from 2021 may now be wrong. Roughly one in three Americans lives in a state that taxes retirement-account withdrawals, so where you live matters too. Here is what you will learn:

💰 How and when an inherited 403(b) actually gets taxed — and why the timing of your withdrawals is the single biggest lever you control.
🧭 Which beneficiary “type” you are, because spouses, adult children, and trusts each follow a different rulebook.
⏰ The exact 10-year deadline and the annual RMD trap that can trigger a 25% penalty if you ignore it.
🧾 A step-by-step walk through the forms (1099-R, Form 5329, Schedule 1) so you can copy the math.
🛡️ The 7 most expensive mistakes heirs make — and the legal moves that cut your tax bill.

What “Inherited 403(b) Taxation” Really Means

A 403(b) is a workplace retirement plan for employees of public schools, colleges, churches, and certain nonprofits. It works much like a 401(k): contributions usually go in pre-tax, grow tax-deferred, and get taxed as ordinary income when withdrawn. Because the original owner never paid income tax on that money, the IRS still wants its cut — and that duty passes to you, the beneficiary.

This is a concept called income in respect of a decedent (IRD). The money the deceased earned but never paid income tax on does not get a “step-up in basis” the way a house or stock portfolio does. As Miller Kaplan explains, retirement-account balances are classic IRD items, so you inherit the tax bill along with the cash. The consequence is real: withdraw $80,000 in one year and that $80,000 is added to your wages, possibly bumping you into a higher tax bracket.

The thing that catches people off guard is when tax hits. You owe nothing the moment you inherit. You owe tax only as you take distributions. That single fact — that you control the timing within the rules — is the most powerful planning tool you have, and most of this article is about using it well.

Traditional vs. Roth 403(b)

The first fork in the road is whether the account is traditional (pre-tax) or Roth. A traditional inherited 403(b) is fully taxable as ordinary income when you withdraw it, because no income tax was ever paid on the contributions or growth. A Roth 403(b) was funded with after-tax dollars, so qualified withdrawals come out income-tax-free to you.

The catch with a Roth 403(b) is the five-year rule: the account must have been open at least five years for earnings to come out tax-free. As SmartAsset notes, heirs of a Roth 403(b) enjoy the same tax-free distributions the original owner would have. A common misconception is that Roth means “no rules at all” — wrong. Roth inherited accounts still face the 10-year emptying deadline; they just usually owe no income tax. Your next step: ask the plan administrator in writing whether the account is traditional, Roth, or a mix, and when the Roth portion was first funded.

Which Situation Applies to You?

The single most important question is what kind of beneficiary you are, because that decides your deadline and your options. Find yourself below, then read the matching section.

You are the surviving spouse → you have the most options, including treating the account as your own. Read “Spouse Beneficiaries.”
You are an “eligible designated beneficiary” (EDB) — a minor child of the owner, a disabled or chronically ill person, or someone not more than 10 years younger than the deceased → you may stretch withdrawals over your life expectancy. Read “Eligible Designated Beneficiaries.”
You are any other individual — most adult children, grandchildren, friends, siblings more than 10 years younger → you fall under the 10-year rule. Read “The 10-Year Rule.”
The beneficiary is a trust, estate, or charity (a “non-designated beneficiary”) → special, often faster, payout rules apply. Read “Trusts, Estates, and Charities.”

Your category was fixed on the date the owner died and the beneficiary form they filed with the plan, not on what you would prefer today. The consequence of guessing wrong is a missed RMD and a penalty, so confirm your status with the plan administrator before you touch the money.

Spouse Beneficiaries: The Most Flexible Path

A surviving spouse has options no one else gets, and choosing well can save thousands in tax. According to MissionSquare, a spouse may treat the account as their own, roll it into their own IRA or 403(b), keep it as an inherited account, or take a lump sum. Each route changes both the deadline and the tax timing.

Treating it as your own (a “spousal rollover”) is usually best if you are under 73 and do not need the money soon. The balance keeps growing tax-deferred, and you do not have to take required minimum distributions (RMDs) until you reach age 73. The trade-off: once it is your own account, the 10% early-withdrawal penalty applies again if you take money out before age 59½, because it is no longer “inherited” money.

Keeping it as an inherited 403(b) or inherited IRA makes sense if you are under 59½ and may need the cash, because inherited-account withdrawals are penalty-free at any age. The downside is you may face earlier RMDs. A common mistake is a younger widow or widower rolling the account into their own name and then needing the money — now stuck with a 10% penalty they could have avoided. Your next step: decide based on your age and cash needs before signing any rollover paperwork, because some choices cannot be undone.

Spouse’s choice	Tax and deadline result
Treat as own / roll to own IRA	No RMDs until you turn 73; tax-deferred growth continues; 10% penalty applies again before age 59½
Keep as inherited account	No 10% penalty at any age; RMDs may start sooner based on the rules; full flexibility on timing
Take a lump sum	Entire pre-tax balance taxed as ordinary income this year; can spike your bracket; no penalty

Eligible Designated Beneficiaries (EDBs)

Some non-spouse heirs get to skip the harsh 10-year rule and instead “stretch” withdrawals over their own life expectancy. As 403bwise outlines, the five EDB categories are: surviving spouses, minor children of the owner, disabled individuals, chronically ill individuals, and beneficiaries not more than 10 years younger than the deceased. Stretching means smaller yearly withdrawals and a smaller yearly tax bill.

A minor child of the owner gets a special twist: they stretch over their life expectancy until they reach the age of majority (generally 21 under the final rules), and then the 10-year clock starts. The consequence of misunderstanding this is real — a 16-year-old beneficiary is not on a pure life-expectancy schedule forever; the account must be emptied within 10 years after they turn 21. A common misconception is that grandchildren qualify as EDBs because they are minors — they do not, unless they meet a different category, because the minor-child exception applies only to the owner’s own children.

The big advantage here is tax smoothing. Spreading a $400,000 account over 30 years of life expectancy keeps each year’s taxable withdrawal small, instead of cramming it into a 10-year window. Your next step: get documentation proving EDB status — a birth certificate for a minor, or a physician’s certification of disability or chronic illness — and give it to the plan administrator, because the default assumption is the 10-year rule.

The 10-Year Rule: What Most Heirs Face

If you are an adult child or any other ordinary non-spouse beneficiary who inherited in 2020 or later, you fall under the 10-year rule. The whole account must be emptied by December 31 of the 10th year after the year the owner died. So if the owner died in 2025, the account must be drained by December 31, 2035. Every traditional-dollar you withdraw along the way is ordinary income.

Here is the trap that changed in 2025. Whether you also owe annual RMDs during years 1–9 depends on whether the owner had already started their own RMDs. Per the IRS final regulations, if the owner died on or after their required beginning date (had reached RMD age, generally 73), you must take an annual RMD in each of years 1 through 9 and empty the account by year 10. If the owner died before their required beginning date, you skip annual RMDs and only need the account empty by year 10.

The penalty for skipping a required annual RMD is steep. Under SECURE 2.0, missing an RMD triggers a 25% excise tax on the amount you should have withdrawn — though the IRS cuts it to 10% if you fix the shortfall within two years and file Form 5329. A common mistake is the “wait until year 10” strategy that worked before 2025; that no longer works if annual RMDs are required, and it also creates a giant taxable lump in year 10. Your next step: ask the plan administrator one question in writing — “Had the deceased reached their required beginning date?” — because the answer decides whether you owe an RMD this year.

Did the owner start RMDs before death?	Your withdrawal duty
Yes — died on/after required beginning date	Annual RMD in years 1–9 (based on your life expectancy) AND empty by year 10; 25% penalty for a missed RMD
No — died before required beginning date	No annual RMD required; just empty the account by December 31 of year 10

Trusts, Estates, and Charities (Non-Designated Beneficiaries)

When the beneficiary is not a living person — an estate, a charity, or certain trusts — the account is a “non-designated beneficiary” and the payout window is usually shorter, not longer. Per MissionSquare, if the owner died before the required beginning date, the account must be emptied by December 31 of the 5th year after death. If the owner died on or after that date, the entity may stretch over the deceased’s remaining life expectancy.

A “see-through” trust can sometimes let the trust’s beneficiaries use the 10-year rule (or even EDB treatment), but only if the trust is drafted correctly with identifiable individual beneficiaries. The consequence of a poorly drafted trust is the faster 5-year payout and a bigger, more compressed tax bill. A charity, by contrast, pays no income tax at all on the distribution because it is tax-exempt — so naming a charity as the retirement-account beneficiary is often a smart estate move.

A common misconception is that naming “my estate” as beneficiary is harmless — it usually forces the 5-year rule and drags the money through probate. Your next step: if a trust is the beneficiary, hire an estate attorney to confirm it qualifies as a see-through trust, because the difference between a 5-year and a 10-year payout can be tens of thousands in tax.

Worked Examples With Real Dollars

Numbers make this concrete. These examples use 2025 federal single-filer brackets and assume a traditional (pre-tax) 403(b). State tax is separate and covered later.

Example 1 — Maria, adult daughter, spreads it out

Maria, 45, inherits a $300,000 traditional 403(b) from her mother, who died in 2025 after reaching RMD age. Maria is subject to the 10-year rule plus annual RMDs. Instead of waiting, she withdraws about $30,000 a year for 10 years.

Each $30,000 withdrawal is added to her $70,000 salary, so her top dollars sit in the 22% bracket.
Estimated extra federal tax per year ≈ $30,000 × 22% = $6,600.
Over 10 years she pays roughly $66,000 in federal tax — and never crosses into the 32% bracket.

If Maria had instead waited and taken the full $300,000 in year 10, that lump would have pushed a big chunk into the 32% and 35% brackets, costing far more — likely $25,000–$40,000 extra in federal tax. Spreading the income out is her single biggest tax saver.

Example 2 — David, surviving spouse, rolls it over

David, 60, inherits his late wife’s $500,000 traditional 403(b). Because he is over 59½ and does not need the cash, he rolls it into his own IRA. He owes $0 in tax this year because a direct rollover is not a taxable event. The balance keeps growing tax-deferred, and he will not face RMDs until he turns 73. His tax bill is simply deferred until he chooses to take income.

Example 3 — Priya, inherits a Roth 403(b)

Priya, 38, inherits a $200,000 Roth 403(b) from her uncle (who was not more than 10 years older, so she is not an EDB). She is under the 10-year rule. Because the account was open more than five years, every dollar she withdraws is income-tax-free. She still must empty it by year 10, so she lets it grow tax-free for nine years, then withdraws the full balance — now larger — with no federal income tax owed. The Roth’s tax-free growth makes “wait then withdraw” the smart play here.

The Forms: A Step-by-Step Walkthrough

Inherited 403(b) distributions flow through a small set of IRS forms. Knowing each one prevents filing errors and penalties.

Form 1099-R — The plan or custodian sends you this each year you take a distribution. Box 1 shows the gross amount; Box 2a shows the taxable amount; Box 7 shows a distribution code (often “4” for death). You do not file it; you use it to report income.
Form 1040, Schedule 1, and the pension/annuity lines — You report the taxable amount from the 1099-R on the Form 1040 pension and annuity income lines. This is where the withdrawal becomes ordinary income.
Form 5329 — File this if you missed a required RMD, to calculate the excise tax or to request a waiver of the penalty. Filing it promptly is how you get the penalty cut from 25% to 10%, or waived.
Schedule A (itemized deductions) — If the estate paid federal estate tax on the 403(b), you may claim the IRD deduction here, as Prudential explains. This deduction offsets the “double tax” of estate tax plus income tax.

The most common form mistake is ignoring a 1099-R because “it’s inherited money” — the IRS receives a copy, and leaving it off your return triggers a matching notice (a CP2000) with tax, interest, and penalties. Your next step: keep every 1099-R, and if you missed an RMD, file Form 5329 with a reasonable-cause statement as soon as you notice.

Federal vs. State: Does Your State Tax It?

Federal tax always comes first: a traditional inherited 403(b) is federally taxable as ordinary income when withdrawn, nationwide. State tax is a separate layer, and it varies a lot. Start with the federal rule, then ask the specific question: does my state tax this withdrawal?

Nine states have no state income tax at all, so they do not tax any retirement withdrawal — per Investopedia, these are Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming. A few states have income tax but exempt most retirement-account income — per The Motley Fool, Illinois, Iowa, Mississippi, and Pennsylvania generally do not tax 401(k)/IRA-type distributions, and the same treatment usually extends to 403(b) money.

Most remaining states do tax inherited 403(b) withdrawals as ordinary income, sometimes with a partial exemption based on age or income. The consequence is that the same $40,000 withdrawal can be tax-free in Texas and cost $2,000–$4,000 in a high-tax state. A common misconception is that the federal answer settles everything — it does not; state conformity genuinely varies. Your next step: check your state Department of Revenue’s page on retirement-income taxation before you decide how much to withdraw in a given year, because residency planning can legitimately cut the bill.

Where you live	State tax on inherited 403(b) withdrawal
No-income-tax states (FL, TX, NV, WA, etc.)	$0 state tax on the withdrawal
Retirement-friendly states (IL, IA, MS, PA)	Usually exempt; little or no state tax
Most other states	Taxed as ordinary income, often at your regular state rate

The Estate Tax Angle and the IRD Deduction

Income tax and estate tax are two different taxes, and most heirs only face the income tax. For deaths in 2025, the federal estate tax exemption is $13.99 million per person, per Citizens Bank. Under the One Big Beautiful Bill Act, that exemption rises to $15 million per person ($30 million per couple) for deaths in 2026, with inflation indexing beginning in 2027. So unless the total estate is in the eight figures, no federal estate tax is due.

If an estate is large enough to pay federal estate tax on the 403(b), the beneficiary can claim the IRD deduction to avoid being taxed twice on the same dollars. As Rodgers & Associates explains, this itemized deduction equals the share of federal estate tax attributable to the retirement account, and it lowers your income tax as you draw the money down. A common misconception is that this deduction is automatic — it is not; you must itemize and calculate it. Your next step: if the estate filed a Form 706 and paid estate tax, ask the estate’s attorney for the IRD figure so you can claim the deduction each year you withdraw.

What To Do Next

Take these steps in order to protect yourself and minimize tax.

Confirm your beneficiary type with the plan administrator — spouse, EDB, ordinary non-spouse, or entity.
Ask whether the owner had reached their required beginning date, since that decides if you owe annual RMDs.
Find out if it’s traditional or Roth, and when the Roth portion was first funded.
Decide on a withdrawal plan that spreads taxable income across years to avoid bracket spikes (unless it’s a Roth).
Mark the year-10 deadline on your calendar (December 31 of the 10th year after death).
Gather records: the death certificate, beneficiary form, account statements, and any 1099-Rs.
Call a CPA or tax attorney if the account is large, a trust is involved, the estate paid estate tax, or you’ve already missed an RMD.

Mistakes To Avoid

Taking a full lump sum without planning — spikes you into the top brackets and can cost tens of thousands in avoidable federal tax in one year.
Missing an annual RMD — triggers a 25% excise tax on the skipped amount (reducible to 10% if fixed within two years).
Assuming the old “wait until year 10” rule still works — it doesn’t if annual RMDs apply, and it creates a huge year-10 tax bomb.
A younger spouse rolling the account into their own name — re-imposes the 10% early-withdrawal penalty before age 59½.
Ignoring a 1099-R — the IRS gets a copy; leaving it off triggers a CP2000 notice with back tax, interest, and penalties.
Naming “my estate” as beneficiary — usually forces the 5-year payout and drags money through probate.
Forgetting the IRD deduction — if the estate paid estate tax, skipping this deduction means paying tax twice on the same dollars.
Assuming your state follows federal rules — some states tax the withdrawal, some don’t; guessing can leave a surprise state bill.
Doing an indirect (60-day) rollover as a non-spouse — not allowed; only a direct trustee-to-trustee transfer works, and a wrong move makes the whole balance taxable now.

Do’s and Don’ts

Do: – Do confirm whether annual RMDs apply — because the 25% penalty is the costliest avoidable error. – Do spread withdrawals across years — because smoothing income keeps you in lower brackets. – Do use a direct trustee-to-trustee transfer to an inherited IRA — because it preserves penalty-free access and avoids accidental taxation. – Do keep every 1099-R and statement — because the IRS matches them to your return. – Do ask about the IRD deduction — because it can meaningfully lower a large account’s tax.

Don’t: – Don’t withdraw it all at once “to get it over with” — because the bracket jump can cost more than the convenience is worth. – Don’t blow the year-10 deadline — because the remaining balance becomes a forced, fully taxable distribution. – Don’t roll an inherited account into your own name if you’re a young spouse needing cash — because you re-trigger the 10% penalty. – Don’t rely on pre-2025 advice — because the final regulations changed the RMD rules. – Don’t assume Roth means “ignore the rules” — because the 10-year emptying deadline still applies.

Pros and Cons of Common Choices

Pros of keeping it as an inherited account / inherited IRA: – No 10% early-withdrawal penalty at any age — useful if you need cash before 59½. – Continued tax-deferred (or tax-free Roth) growth until you withdraw. – Flexibility to time withdrawals for low-income years. – Penalty-free access for emergencies. – Possible stretch treatment if you’re an eligible designated beneficiary.

Cons: – The 10-year deadline still forces full payout for most non-spouse heirs. – Annual RMDs may apply with a 25% penalty for misses. – A large traditional balance can spike your taxable income in the payout years. – No new contributions allowed to an inherited IRA. – State tax may apply on top of federal, depending on where you live.

Frequently Asked Questions

Do I pay tax the moment I inherit a 403(b)? No. You owe no income tax when you inherit. Tax applies only as you withdraw money. A traditional 403(b) withdrawal is ordinary income in the year you take it; an inherited Roth 403(b) is usually tax-free.

Does the 10% early-withdrawal penalty apply to an inherited 403(b)? No. Inherited 403(b) distributions are exempt from the 10% early-withdrawal penalty at any age. The penalty only returns if a surviving spouse rolls the money into their own account and withdraws before age 59½.

How long do I have to empty an inherited 403(b)? Generally 10 years for most non-spouse heirs who inherited in 2020 or later — by December 31 of the 10th year after the owner’s death. Spouses and eligible designated beneficiaries can stretch longer; estates may face a 5-year window.

Do I have to take money out every year? It depends. If the owner died on or after their required beginning date (around age 73), you must take an annual RMD in years 1–9 for tax year 2025 and beyond. If they died before that date, no annual RMD is required — just empty by year 10.

What is the penalty for missing a required withdrawal? 25% of the missed amount. Under SECURE 2.0, the excise tax is 25%, reduced to 10% if you correct the shortfall within two years and file Form 5329. The IRS may waive it for reasonable cause.

Is an inherited Roth 403(b) taxed? No, usually not. Qualified withdrawals from an inherited Roth 403(b) are income-tax-free, as long as the account was open at least five years. You still must empty it within 10 years if you’re a non-spouse beneficiary.

Can a non-spouse roll an inherited 403(b) into an IRA? Yes, but only a direct transfer. A non-spouse may move funds by direct trustee-to-trustee transfer into an inherited IRA. An indirect 60-day rollover is not allowed and would make the whole balance taxable immediately.

Will I owe estate tax on an inherited 403(b)? Almost never. For 2025 the federal estate tax exemption is $13.99 million per person, rising to $15 million in 2026. Only estates above that threshold owe federal estate tax, and the income tax on withdrawals is separate.

Does my state tax inherited 403(b) withdrawals? It depends on your state. Nine states (including Florida, Texas, and Nevada) have no income tax, and a few like Illinois and Pennsylvania exempt retirement income. Most other states tax the withdrawal as ordinary income.

What form reports an inherited 403(b) distribution? Form 1099-R. The custodian issues it each year you withdraw; you report the taxable amount on Form 1040. Use Form 5329 for missed RMDs and Schedule A for the IRD deduction if estate tax was paid.

What is the IRD deduction? An income tax deduction for the federal estate tax paid on the retirement account. It prevents the same dollars from being taxed twice — by estate tax and income tax — and is claimed as an itemized deduction as you withdraw.

Can I leave the inherited 403(b) where it is? Yes, sometimes. If the plan allows, you can keep it as an inherited 403(b) and take distributions over time, subject to the same 10-year or RMD rules. Many heirs instead transfer to an inherited IRA for more investment choices.

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