Inherited IRA RMD Calculator — 10-Year Rule Drawdown

Under SECURE Act 2.0, most inherited IRAs must be emptied within 10 years. See how much to withdraw each year to drain it on time and spread the tax hit evenly. ✓ SECURE 2.0

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Inherited IRA RMD

10-year rule • Even drawdown

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Enter the balance to plan your drawdown

How the Inherited IRA Calculator Works

  1. Enter the inherited balance, expected return and years left in the 10-year window.
  2. We compute a level annual withdrawal that drains the account by the deadline even as it keeps growing.
  3. See your yearly amount, the drawdown chart, and the estimated tax each year.

The Inherited IRA 10-Year Rule (SECURE 2.0)

Since the SECURE Act, most non-spouse beneficiaries (such as adult children) must empty an inherited IRA within 10 years of the original owner's death — the old "stretch IRA" is gone. If the owner had already begun RMDs, you must also take annual RMDs in years 1–9 based on your life expectancy, then drain the rest by year 10.

Because every withdrawal is taxable income, taking it all in year 10 can spike you into a high bracket. Spreading withdrawals evenly across the window usually minimizes total tax — that's the level amount this calculator suggests. Eligible designated beneficiaries (spouses, minor children, disabled or chronically ill) follow different rules. Estimate only; not tax advice.

Formula & Logic

The SECURE Act of 2019 fundamentally changed inherited retirement accounts. Most non-spouse beneficiaries who inherited after 2019 must empty the account within ten years, replacing the old "stretch IRA" that allowed distributions over a lifetime. Where the original owner had already begun RMDs, annual distributions are also required during those ten years, not just a balloon at the end. Because every dollar from an inherited traditional IRA is ordinary income, the planning question is how to spread it across ten tax years without spiking into higher brackets — and the worst outcome is taking it all in year ten.

Ten-year rule: account must be empty by 31 December of the 10th year after deathAnnual RMD (if required) = Prior year-end balance ÷ single life expectancy factorEven spreading: Balance ÷ years remainingEligible designated beneficiaries may still stretch over life expectancy

where:

ten-year rule
applies to most non-spouse beneficiaries inheriting after 2019
eligible designated beneficiary
spouse, minor child, disabled or chronically ill, or within 10 years of the decedent's age
Roth inherited
also subject to the ten-year rule, but distributions are tax-free

Assumptions: Spouses have separate, more favourable options including treating the IRA as their own. Inherited Roth IRAs must also be emptied in ten years but generate no income tax, so deferring to year ten is optimal there and usually wrong for a traditional IRA.

Step-by-Step Example: A $400,000 Inherited IRA Over Ten Years

Compare even spreading against a year-ten lump sum for a beneficiary in the 24% bracket.

  • Inherited balance$400,000
  • Beneficiary bracket24%
  • Growth6%
  • Deadline10 years
  1. Even approach: roughly $40,000 a year, rising as the balance grows — about $54,300 annually on average.
  2. That stays within the 24% bracket, costing roughly $130,000 of tax overall.
  3. Lump-sum approach: leave it to grow, reaching $400,000 × 1.06¹⁰ = $716,339.
  4. Taking that in one year pushes most of it into the 35% and 37% brackets.
  5. Estimated tax on a single distribution: roughly $244,000.
  6. Difference: about $114,000 of avoidable tax.

ResultEven spreading saves roughly $114,000 against a year-ten lump sum

The instinct to defer tax as long as possible is exactly wrong for a large inherited traditional IRA, because the ten-year deadline forces a single enormous income event. Spread withdrawals to fill your current bracket each year and stop at its ceiling.

Inherited IRA FAQ

If the original owner had started RMDs, yes — annual RMDs in years 1–9, then empty by year 10. If they hadn't, you can withdraw any pattern as long as it's empty by the end of year 10. Spreading it out usually saves tax.
Amounts left after 10 years face a steep penalty (25%, reduced to 10% if corrected promptly under SECURE 2.0). Plan ahead to avoid it.
No. Surviving spouses and other "eligible designated beneficiaries" have more favorable options, including treating the IRA as their own.

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✔ Written & reviewed by Dr Sam — 20+ yrs in management & research leadership📅 Last updated June 2026📚 Sources: IRS retirement plan limits, Social Security Administration📑 How we build & check these⚖ Educational estimates only — not financial, tax or legal advice