Inherited IRA 10-Year Rule and Tax Strategies

Komon Lab | Wealth Building & Estate Architecture

For decades, estate planning attorneys and wealth advisors structured intergenerational wealth transfer around the “Stretch IRA,” a legal framework that allowed non-spouse beneficiaries to stretch required minimum distributions over their single life expectancy. That wealth-compounding vehicle was permanently dismantled when Congress enacted the Setting Every Community Up for Retirement Enhancement (SECURE) Act of 2019, followed by technical corrections in the SECURE 2.0 Act of 2022.

Under the modernized statutory framework codified in Internal Revenue Code Section 401(a)(9), most non-spouse beneficiaries who inherit an individual retirement account after December 31, 2019, must completely liquidate the entire account balance by the end of the tenth calendar year following the original account owner’s death. Furthermore, following years of administrative ambiguity, the Department of the Treasury issued final regulations (Treasury Decision 10001) in July 2024 confirming that if the deceased owner had already reached their Required Beginning Date (RBD), the beneficiary cannot simply wait until Year 10 to withdraw the funds. Instead, they must take annual required minimum distributions in Years 1 through 9, creating complex marginal tax bracket planning challenges for high-earning adult children.

1. The Legislative Evolution: From the Stretch IRA to the 10-Year Mandate

Prior to the SECURE Act, an individual inheriting a traditional IRA could take annual distributions calculated using the IRS Single Life Expectancy Table (Treasury Regulation Section 1.401(a)(9)-9). A 35-year-old beneficiary inheriting a $1,000,000 account could withdraw modest annual sums (starting at roughly 2% of the balance), allowing the remaining principal to compound tax-deferred for half a century.

Congress eliminated this mechanism to accelerate federal income tax collections. The SECURE Act established that traditional and Roth IRAs are intended primarily for retirement security during the account owner’s lifetime, rather than perpetual multi-generational wealth preservation.

Under IRC Section 401(a)(9)(H), all assets held in an inherited defined contribution plan or IRA must be distributed within ten calendar years. The clock begins on January 1 of the year immediately following the decedent’s death and concludes on December 31 of the tenth anniversary year. For an account owner who died on October 15, 2024, the ten-year clock begins on January 1, 2025, and mandates total distribution by December 31, 2034.

2. Beneficiary Classifications: The Three Statutory Tiers

Not all beneficiaries are subject to the rigid 10-year liquidation rule. The statute establishes three distinct classes of IRA beneficiaries, each governed by divergent distribution timetables under Treasury Regulation Section 1.401(a)(9)-4:

Special Surviving Spouse Elections: SECURE 2.0 Section 327

Surviving spouses retain unique statutory privileges unavailable to any other class of beneficiary. Traditionally, a surviving spouse chose between executing a “spousal rollover” (treating the IRA as their own) or maintaining an inherited IRA subject to single life expectancy calculations.

Effective for tax years beginning after December 31, 2023, Section 327 of the SECURE 2.0 Act established an additional election codified in IRC Section 401(a)(9)(B)(iv). Under this provision, a surviving spouse who maintains an inherited IRA can elect to calculate required minimum distributions using the Uniform Lifetime Table (which provides significantly smaller annual distribution factors than the Single Life Expectancy Table) and defer the initiation of RMDs until the deceased spouse would have attained their Required Beginning Date. If the surviving spouse dies before distributions commence, the secondary beneficiaries are evaluated as if the surviving spouse were the original account owner, effectively resetting the estate planning timeline.

3. Treasury Decision 10001: The “At Least As Rapidly” RMD Rule

Between 2020 and 2024, the financial services sector debated whether non-eligible designated beneficiaries were required to take annual distributions during the 10-year term, or if they could allow the account to compound untouched until taking a 100% lump-sum distribution in Year 10.

On July 18, 2024, the IRS issued final regulations under Treasury Decision 10001 (effective for the 2025 tax year onwards). The IRS interpreted the statutory “at least as rapidly” rule of IRC Section 401(a)(9)(B)(i) to mean that once an account owner enters mandatory distribution status, distributions cannot stop upon death.

The operational mandate depends strictly on whether the original owner reached their Required Beginning Date (RBD):

• Scenario A: Owner Died BEFORE Required Beginning Date (Age 73): No annual distributions are required during Years 1 through 9. The beneficiary may take distributions at any time and in any dollar amount, provided the entire account reaches zero balance by December 31 of Year 10.
• Scenario B: Owner Died ON OR AFTER Required Beginning Date (Age 73): The beneficiary MUST calculate and withdraw an annual RMD for Years 1 through 9 based on their own single life expectancy factor, and completely liquidate the remaining balance by December 31 of Year 10.

Because of taxpayer confusion, the IRS issued annual transition relief (Notices 2022-53, 2023-54, and 2024-35) waiving penalties for missed annual RMDs for tax years 2021 through 2024. However, that administrative grace period has expired; beginning with the 2025 and 2026 tax years, mandatory annual RMD enforcement is fully operational.

4. Inherited Roth IRAs: The 10-Year Tax-Free Advantage

The interaction between the 10-year rule and inherited Roth IRAs presents a completely different financial dynamic. Under Treasury Regulation Section 1.401(a)(9)-3, original Roth IRA owners are treated as having died prior to their Required Beginning Date, regardless of how old they were at death, because original Roth owners are never subject to lifetime RMDs.

Consequently, non-eligible designated beneficiaries of an inherited Roth IRA are never subject to annual RMDs in Years 1 through 9.

Because qualifying distributions from an inherited Roth IRA are 100% income-tax-free under IRC Section 408A(d), the mathematically optimal strategy for an inherited Roth IRA is universally the opposite of a traditional account:

• Zero Withdrawals in Years 1 Through 9: Do not withdraw a single dollar before Year 10. Allow the entire portfolio to compound with zero dividend drag, zero interest drag, and zero capital gains taxation.
• Full Liquidation on December 31 of Year 10: Liquidate 100% of the account on the final eligible business day of the tenth year. Transfer the entire tax-free sum into an individual taxable brokerage account or High-Yield Savings Account.

5. Penalties for Missed Distributions Under SECURE 2.0

Under pre-2023 law, failing to withdraw a required minimum distribution triggered one of the most punitive penalties in the Internal Revenue Code: an excise tax of 50% on the shortfall amount under IRC Section 4974.

Section 302 of the SECURE 2.0 Act amended IRC Section 4974 to provide meaningful statutory relief:

• Reduction to 25%: Effective for tax years beginning after December 31, 2022, the baseline excise tax on missed RMDs is reduced from 50% to 25% of the undistributed amount.
• The 10% Timely Correction Window: If the taxpayer discovers the shortfall, takes the full corrective distribution, and files IRS Form 5329 prior to the earliest of (1) the mailing of a notice of deficiency, (2) the assessment of the tax, or (3) the last day of the second taxable year beginning after the year in which the excise tax was imposed, the penalty is further reduced to 10%.
• Reasonable Cause Waiver (Form 5329 Part IX): Taxpayers can request a full penalty waiver by filing Form 5329 with a formal written statement explaining that the shortfall was due to reasonable error and demonstrating that reasonable steps are being taken to remedy the error.

6. Strategic Planning for Trusts as Beneficiaries

Many affluent individuals historically designated a revocable family trust as the primary beneficiary of their IRA to control asset distribution across future generations. Under the SECURE Act, trusts encounter complex tax obstacles.

To qualify for the 10-year rule rather than the restrictive 5-year non-designated beneficiary rule, the trust must qualify as a “see-through trust” under Treasury Regulation Section 1.401(a)(9)-4(f):

• Conduit Trusts: The trustee is legally required to pass all distributions received from the IRA directly out to the individual trust beneficiaries. While this preserves individual tax bracket treatment, it forces the entire IRA balance into the beneficiary’s personal hands by Year 10, defeating the asset-protection purpose of the trust.
• Accumulation Trusts: The trustee has discretionary authority to retain distributions inside the trust structure to protect assets from creditors, lawsuits, or divorce. However, any funds retained inside a trust are subject to compressed fiduciary income tax brackets. In 2026, trust income reaches the top 37% federal tax bracket at just over $15,000 of taxable income, generating massive tax inefficiencies compared to individual rates.

Charitable Remainder Unitrusts (CRUTs) as a Stretch IRA Alternative

To replicate the wealth preservation dynamics of the pre-SECURE stretch IRA, high-net-worth families frequently designate a Charitable Remainder Unitrust (CRUT) under IRC Section 664 as the designated beneficiary of a large traditional IRA.

Upon the account owner’s death, the entire IRA balance transfers into the tax-exempt CRUT with zero immediate income tax realization. The trust then pays a fixed percentage (typically between 5% and 8% annually) of the revalued trust assets to the non-charitable beneficiary (such as adult children) for their entire lifetime or a fixed term of up to twenty years. Upon the beneficiary’s passing, the remaining trust principal (statutorily required to be at least 10% of the initial actuarial value) transfers to a qualified charity. This structure successfully spreads ordinary income over multiple decades, shielding heirs from the punitive 10-year bracket spike.

7. Frequently Asked Questions

8. Primary Sources and Statutory References