Should You Do a Roth Conversion to Beat the 10-Year Rule? (w/Examples) + FAQs

Quick Answer: Often, yes. For tax year 2026, converting your traditional IRA to a Roth during your low-income years can shrink or erase the “10-year rule” tax bomb your heirs face. An inherited Roth IRA still empties in 10 years, but the withdrawals come out tax-free.

This article reflects federal rules as of June 2026 and covers tax year 2026. State rules are addressed separately below. Tax law changes — confirm current figures before you act. This is educational information, not personal tax advice. A Roth conversion that spans several years and large dollar amounts is exactly the kind of decision worth running past a CPA or fee-only financial planner first.

If you have built a large traditional IRA or 401(k), there is a quiet problem waiting for the people who inherit it. Under the SECURE Act most non-spouse heirs must now empty an inherited retirement account within 10 years, and every dollar of a traditional account comes out as taxable income — often landing on top of an heir who is already in their peak earning years.

A Roth conversion flips that math. You pay the tax now, at your rate, while you control the timing — and your heirs inherit a Roth that still follows the 10-year rule but pays out tax-free. With Americans holding more than $16 trillion in IRAs, as reported by the Investment Company Institute, the gap between a smart conversion plan and a do-nothing plan can be worth six figures to a single family.

💡 How the 10-year rule actually works, including the new annual-RMD trap that started in 2025.
🧮 A full worked example showing the exact tax saved by converting before death versus letting heirs drain a traditional account.
🪜 How to build a multi-year Roth conversion ladder that fills low brackets without spiking into a higher one.
⚠️ The 7 mistakes that turn a “smart” conversion into a costly one — including the 5-year clock and IRMAA surcharges.
🗺️ Who should convert, who should not, and how your state’s tax treatment changes the answer.

What the 10-Year Rule Really Means

The 10-year rule is the SECURE Act’s replacement for the old “stretch IRA.” It says that most beneficiaries who inherit a retirement account from someone who died in 2020 or later must withdraw the entire balance by December 31 of the 10th year after the death, as confirmed in the IRS final regulations. The stretch — drawing an inherited IRA down slowly over your own lifetime — is gone for these heirs.

The consequence is a compressed tax window. Instead of spreading withdrawals across 30 or 40 years, a working-age heir must absorb the whole account inside a decade, frequently during their highest-earning years. A $500,000 traditional IRA pulled out by a 45-year-old already earning a solid salary can be taxed at the 32% or 35% federal rate, where the same dollars might have been taxed at 12% if the original owner had converted them gradually.

A second trap arrived for tax year 2025 and continues into 2026. If the original owner had already reached their required-beginning date for required minimum distributions (RMDs), the heir must now take annual RMDs in years one through nine and empty the account by year 10 — they cannot simply wait until the last year. Missing one of these distributions triggers a 25% excise tax on the amount that should have come out, reducible to 10% if you fix it within two years by filing Form 5329.

Who Is Actually Subject to the Rule

Not everyone inheriting an account is trapped in 10 years. The SECURE Act carves out a protected class called eligible designated beneficiaries (EDBs) who can still stretch withdrawals over their own life expectancy.

The five EDB categories are a surviving spouse, a beneficiary who is disabled, a beneficiary who is chronically ill, a minor child of the owner (only until age 21, then the 10-year clock starts), and any beneficiary no more than 10 years younger than the deceased. Everyone else — the typical adult child, a grandchild, a niece, a friend, or a trust — is a “designated beneficiary” and falls squarely under the 10-year rule.

The common misconception is that “my kids can just stretch it like I could.” For a healthy adult child, that is no longer true. The practical step: pull your beneficiary form today and ask who actually inherits, because the conversion case is strongest precisely when your heirs are non-EDB adult children in good careers.

Why a Roth Conversion Beats the Rule

A Roth conversion does not repeal the 10-year rule — an inherited Roth IRA still must be emptied within 10 years. What it changes is who pays the tax and at what rate. With a traditional account, the heir pays income tax on every withdrawn dollar at their bracket. With a Roth, you paid the tax at conversion, and qualified inherited Roth withdrawals are federally tax-free.

The “why” is rate arbitrage. A retiree in a gap year — retired but not yet drawing Social Security or RMDs — may sit in the 10% or 12% bracket, while their working heir sits in the 24%–35% range. Converting at 12% so your heir avoids paying 32% is a guaranteed spread, and unlike investment returns, that spread is locked in the moment you convert.

There is also no annual-RMD headache on an inherited Roth. Because Roth owners have no lifetime RMDs, a Roth original owner is always treated as dying “before the required beginning date,” so the heir is not forced to take yearly distributions during the 10 years — they only must empty the account by year 10. That gives heirs a full decade of additional tax-free growth before the money must come out.

Which Situation Applies to You?

The right move depends on who you are in this story. Use this to jump to your case.

You are the original account owner, retired or near-retired, with a large traditional IRA and adult-child heirs. This is the textbook conversion candidate — keep reading the worked example below.
You are still working and in a high bracket yourself. Converting now may cost more than your heirs would ever pay; consider waiting for lower-income years.
You already inherited a traditional IRA. Important and often misunderstood: you generally cannot convert an inherited IRA to a Roth. Only a surviving spouse who rolls the account into their own IRA can later convert it.
Your heirs are eligible designated beneficiaries (a disabled child, for example). The 10-year rule may not apply to them, which weakens the conversion case.

Worked Example: The Tax Bomb vs. the Conversion

Meet Margaret, age 64, retired, single, living in a no-income-tax state. She has a $500,000 traditional IRA and one heir, her daughter Dana, a 45-year-old engineer earning $150,000.

If Margaret does nothing and dies, Dana inherits the $500,000 traditional IRA. If Dana waits and pulls it as a lump in year 10 on top of her $150,000 salary, the 2026 federal brackets push most of it into the 32% and 35% bands. The added federal tax is about $167,859 — an effective rate near 33.6% on the inherited money.

Now suppose Margaret instead runs a conversion ladder. With only about $30,000 of other income, she converts roughly $80,000 a year. Filling up through the 24% bracket, each $80,000 conversion costs her about $15,646 in federal tax — an effective rate of just 19.6%. Even pushing slightly into the 24% band, her blended cost stays far below Dana’s 33.6%.

Margaret’s Choice	Federal Tax Outcome
Do nothing; Dana takes a year-10 lump	~$167,859 in tax for Dana, effective 33.6%
Convert ~$80,000/year before death	~$15,646/year, effective ~19.6%, paid by Margaret
Net family savings on the converted dollars	Roughly 14 cents on every dollar converted

The lesson: moving the tax event from Dana’s 33.6% world to Margaret’s ~19.6% world can save this one family well over $60,000 on a partial conversion — and the converted Roth then grows tax-free for everyone.

Building a Roth Conversion Ladder

A conversion ladder is simply a multi-year plan to convert chunks of a traditional IRA, filling up the low brackets each year without spilling into a high one. You report each conversion on Form 8606 and pay the tax with your return for that year.

The mechanics matter. For tax year 2026, a single filer can have up to $50,400 of taxable income taxed at 12% or less, and up to $105,700 taxed at 22% or less. A retiree with little other income can convert tens of thousands of dollars a year inside those bands, then repeat annually for as long as the gap lasts.

The consequence of getting greedy is real: one oversized conversion can jump you two brackets, trigger taxation of more of your Social Security, and raise your Medicare premiums two years later. The fix is discipline — convert to the top of your target bracket and stop, then convert again next January.

Timing the Conversion Window

The best window is usually the “gap years” — after you stop working but before Social Security and age-73 RMDs begin. Income is naturally low, so each converted dollar is taxed cheaply.

The consequence of waiting too long is that RMDs eventually force taxable income up on their own, narrowing your conversion room every year. A practical step: map your income from retirement to age 73, and treat each low-income year as a use-it-or-lose-it conversion opportunity.

Named Examples

Robert, 67, married, $1.2 million traditional IRA, two adult-child heirs. Robert and his wife convert $90,000 a year for six years, staying inside the 22% bracket on their joint return. By the time he dies, more than half the account is Roth, and his children inherit money that comes out tax-free over their 10-year window.

Priya, 58, single, still working and earning $220,000. She is tempted to convert but sits in the 32% bracket — higher than where her heir will likely be. Her smartest move is to wait until she retires at 62, when her conversion cost drops by more than a third.

The Nguyen family: Mr. Nguyen died at 80, after his RMDs had begun, leaving a traditional IRA to his son. Because the owner was past his required beginning date, the son must take annual RMDs in years one through nine and empty it by year 10 — and a missed RMD risks the 25% penalty. Had Mr. Nguyen converted to Roth years earlier, his son would face no annual RMDs at all.

Mistakes to Avoid

Converting in a high-income year. You pay your top rate now; if it exceeds your heir’s future rate, you lost the arbitrage.
Using IRA money to pay the conversion tax. Paying the tax from the IRA itself shrinks the Roth and, if you are under 59½, can trigger a 10% penalty on the withheld amount.
Ignoring the 5-year rule. Each conversion starts its own 5-year clock; withdrawing converted principal too soon before age 59½ can trigger a 10% penalty.
Forgetting IRMAA. A big conversion raises your modified income and can spike your Medicare Part B and D premiums two years later.
Trying to convert an inherited IRA. Non-spouse beneficiaries cannot convert an inherited traditional IRA — the IRS does not allow it.
Missing the heir’s annual RMD. When the owner died after their required beginning date, skipping a year-one-through-nine RMD risks a 25% excise tax.
Filing without Form 8606. Skip this form and the IRS may tax your conversion or your basis incorrectly, costing you money you already paid.

Do’s and Don’ts

Do convert during low-income gap years — that is when the rate spread is widest.
Do pay the conversion tax from outside cash, so the full balance keeps growing tax-free.
Do spread conversions across multiple years to avoid bracket creep.
Do check your beneficiary designations, because the case is strongest for non-EDB adult heirs.
Do model IRMAA and Social Security taxation before you convert, since both can rise.
Don’t convert more than fills your target bracket — overflow is taxed at the next rate up.
Don’t assume your state mirrors federal treatment; some tax conversions differently.
Don’t wait until RMDs start if a cheaper window exists now.
Don’t convert if your heirs are eligible designated beneficiaries who can still stretch.
Don’t go it alone on large multi-year conversions — the interaction of brackets, IRMAA, and the 5-year rule is where a planner earns their fee.

Pros and Cons

Pro — tax-free to heirs. An inherited Roth pays out with no federal income tax, because the tax was settled at conversion.
Pro — you control the rate. You convert at your bracket on your timeline, not your heir’s peak-earning bracket.
Pro — no heir RMDs on a Roth. Heirs get a full decade of tax-free growth with no forced annual withdrawals.
Pro — shrinks your future RMDs. Less in your traditional IRA means smaller taxable RMDs at 73.
Pro — estate-tax efficiency. You pay the income tax out of the estate, effectively passing more after-tax wealth.
Con — large tax bill now. The conversion is taxable today, and a big one can be a real cash strain.
Con — IRMAA and Social Security hits. Higher income can raise Medicare premiums and tax more of your benefits.
Con — 5-year clocks. Each conversion locks money for five years to avoid penalties before 59½.
Con — no recharacterization. Since 2018 you cannot undo a conversion if your situation changes.
Con — break-even risk. If your heir ends up in a lower bracket than you, the conversion can cost the family money.

Federal vs. State Treatment

Start with federal: a Roth conversion is fully taxable as ordinary income on your federal return for the year you convert, and qualified Roth withdrawals later are federally tax-free. States, however, do not all follow suit.

Where You Live	How a Roth Conversion Is Taxed
No-income-tax states (e.g., Florida, Texas)	The conversion is free of state income tax, making ladders especially cheap
Most income-tax states (e.g., California)	The conversion is taxed as ordinary state income in the conversion year
States that exempt some retirement income	Treatment varies; confirm with your state agency, such as the California FTB

The planning angle: if you are about to relocate from a high-tax state to a no-tax state, waiting to convert until after you move can save the entire state tax on the conversion. Never assume your state copies the federal rule — check your state’s department of revenue before you convert.

What to Do Next

Pull your IRA balances and your current beneficiary designations, and confirm whether your heirs are EDBs or fall under the 10-year rule.
Estimate your taxable income for each year from now through age 73 to find your low-bracket “conversion window.”
Decide how much to convert this year — generally up to the top of your target 2026 bracket — and set aside outside cash to pay the tax.
Execute the conversion with your custodian before December 31, and keep the confirmation.
File Form 8606 with that year’s return to report the conversion and track basis.
If the amounts are large or your situation involves IRMAA, Social Security, or a trust beneficiary, bring in a CPA or fee-only planner before you pull the trigger.

Frequently Asked Questions

Does a Roth conversion eliminate the 10-year rule? No. An inherited Roth IRA still must be emptied within 10 years. The conversion changes the tax — heir withdrawals from an inherited Roth are federally tax-free, while traditional withdrawals are not.

Can I convert an inherited IRA to a Roth? No. Non-spouse beneficiaries cannot convert an inherited traditional IRA. Only a surviving spouse who rolls the account into their own IRA may later convert it.

When is the best time to do a Roth conversion? During low-income “gap” years — after you retire but before Social Security and age-73 RMDs begin. Your bracket is lowest then, so each converted dollar is taxed cheaply.

How much can I convert without jumping a tax bracket in 2026? Up to the top of your target bracket — for a single filer, about $50,400 of taxable income stays at 12% and about $105,700 stays at 22% for tax year 2026, minus your other income.

Do heirs pay tax on an inherited Roth IRA? No federal income tax on qualified withdrawals, as long as the original Roth was open at least five years. The account must still be emptied within 10 years.

Will a big conversion raise my Medicare premiums? Yes, possibly. A conversion raises your modified adjusted gross income, which can trigger IRMAA surcharges on Medicare Part B and D about two years later.

Is there a penalty for missing an inherited IRA RMD? A 25% excise tax on the amount you should have withdrawn, reducible to 10% if corrected within two years by filing Form 5329, under rules effective for 2025 and 2026.

Can I undo a Roth conversion if I change my mind? No. Recharacterization of conversions was eliminated starting in 2018, so a conversion is permanent once done.

Does my state tax a Roth conversion? It depends. No-income-tax states like Florida and Texas do not tax it; most income-tax states such as California tax the conversion as ordinary income in the year you convert.

Who is exempt from the 10-year rule? Eligible designated beneficiaries — a surviving spouse, a disabled or chronically ill person, a minor child of the owner, or anyone no more than 10 years younger than the deceased — may still stretch withdrawals over their lifetime.

Should I convert if I’m still working in a high bracket? Usually no. If your current rate is higher than your heir’s likely future rate, converting now costs the family money. Wait for a lower-income year.

What form reports a Roth conversion? Form 8606, filed with your federal return for the conversion year, reports the conversion and tracks any after-tax basis so you are not taxed twice.

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