The Stretch IRA Is Dead. Here's What Replaced It for the 10-Year Window

Before 2020, a non-spouse heir could stretch an inherited IRA’s distributions over their own life expectancy — a 30-year-old inheriting from a parent could spread withdrawals across 50+ years, minimizing each year’s tax hit while most of the balance kept growing tax-deferred. The SECURE Act ended that. We compared the three obvious strategies that replaced it.

Three ways to empty the same account

Strategy Mechanics Trade-off
Equal annual Balance ÷ years remaining, each year Smooths the tax hit but caps growth
Lump year 1 Withdraw everything immediately Highest single-year tax bill, zero further deferral
Lump year 10 Let it grow tax-deferred, withdraw all at year 10 Maximizes nominal balance, concentrates the entire 10 years of tax into one year

At a single flat marginal tax rate, the math mechanically favors waiting — the account keeps compounding tax-deferred the longer withdrawal is delayed, so lump year 10 retains the largest nominal after-tax total of the three presets. But that’s an artifact of using one flat rate for comparison. Real US tax brackets are progressive, and a lump withdrawal in a single year routinely pushes a beneficiary from a moderate bracket into a meaningfully higher one for that year alone.

Why bracket-stacking usually beats all three presets

None of the three simple strategies is actually optimal once real progressive brackets enter the picture. A tax-aware schedule — one that fills up the lower brackets (12%, 22%, 24%) each year without spilling into the next one — routinely retains more after-tax value than any single flat-rate preset, often by a meaningful margin. The exact advantage depends heavily on the beneficiary’s other income in each of the 10 years: someone approaching retirement with declining income in years 8-10 has a very different optimal schedule than someone at peak earning years throughout the window.

This is a case where the simple comparison tool answers “which preset is best at your assumed flat rate,” but the real optimization requires modeling actual projected income year by year — the kind of analysis a tax professional runs with your specific numbers, not a generic calculator.

The RMD wrinkle that keeps changing

Whether a beneficiary owes annual RMDs during years 1-9 (in addition to the year-10 zero-balance requirement) depends on whether the original account owner had already started their own RMDs before death. The IRS delayed finalizing this rule for several years, and issued Notice 2024-35 waiving penalties on missed RMDs for 2021 through 2024 while the guidance was being sorted out. Anyone managing an inherited IRA should confirm the current-year rule rather than assuming last year’s guidance still applies unchanged.

Where this comparison doesn’t apply

  • Spouse beneficiaries. A surviving spouse can roll the inherited IRA into their own IRA and treat it as their own account — no 10-year rule at all, RMDs based on their own age. The entire comparison above is moot for spouses.
  • Eligible Designated Beneficiaries. Minor children of the deceased (until 21), disabled or chronically ill beneficiaries, and beneficiaries within 10 years of the deceased’s age retain lifetime stretch options — a fundamentally different, usually more favorable, calculation.
  • Roth inherited IRAs. The 10-year emptying rule still applies, but withdrawals are tax-free, which removes the entire bracket-stacking concern that drives most of the strategy discussion for traditional inherited IRAs.
  • Beneficiaries expecting a major income change. Anyone anticipating retirement, a career change, or another significant income shift within the 10-year window should weight withdrawals toward their lower-income years rather than following a fixed preset.

What to actually do

  1. Confirm which category of beneficiary you are — spouse, Eligible Designated Beneficiary, or standard 10-year-rule heir — since the rules differ substantially.
  2. Check whether you owe annual RMDs during years 1-9 based on the original owner’s RMD status and the current-year IRS guidance.
  3. Project your expected income for each of the 10 years, even roughly, before picking a withdrawal schedule.
  4. Compare the three simple presets as a starting reference point, then adjust toward a bracket-filling schedule based on your actual projected income.
  5. Talk to a tax professional before finalizing a multi-year withdrawal plan — the difference between a naive and a tax-aware schedule is often 5-10% of the account’s after-tax value.

Open the Inherited IRA 10-Year RMD Calculator → and compare the three strategies against your own balance, tax rate, and time horizon.

Want to try it yourself?
Open the interactive simulator and run the numbers yourself.
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