Required Minimum Distributions: Rules and Planning Implications

Required Minimum Distributions (RMDs) are federally mandated withdrawals from tax-deferred retirement accounts, enforced under the Internal Revenue Code and administered through IRS guidance. Failure to take the correct distribution triggers one of the steepest penalties in the tax code, making accurate calculation and timely execution a critical component of retirement income strategies. This page describes how RMDs are defined, how they are calculated, the account types they govern, and the planning considerations that shape distribution decisions.

Definition and Scope

Under Internal Revenue Code §401(a)(9), account holders in qualified retirement plans must begin withdrawing minimum amounts annually once they reach a specified age. The SECURE 2.0 Act of 2022 (Pub. L. 117-328) raised the RMD starting age from 72 to 73 for individuals who turn 72 after December 31, 2022, and further increases the age to 75 for those born after December 31, 1960 (IRS Notice 2023-75).

RMD rules apply to the following account categories:

Traditional IRAs — including SEP-IRAs and SIMPLE IRAs
401(k) plans — both traditional and safe harbor variants
403(b) plans — commonly used by nonprofit and educational employers
457(b) plans — governmental deferred compensation accounts
Profit-sharing plans

Roth IRAs are explicitly excluded from RMD requirements during the account owner's lifetime under pre-SECURE 2.0 law. Roth 401(k) accounts were subject to RMDs prior to 2024; SECURE 2.0 eliminated that requirement beginning with the 2024 tax year (IRS.gov, SECURE 2.0 Act Changes).

The penalty for failing to take a required distribution was historically 50% of the shortfall. SECURE 2.0 reduced that excise tax to 25%, and further to 10% if corrected within a two-year correction window (IRC §4974, as amended).

How It Works

RMDs are calculated annually using two variables: the account balance as of December 31 of the prior year and a life expectancy factor drawn from IRS actuarial tables.

Annual RMD Formula:

RMD = Prior Year-End Account Balance ÷ Applicable Distribution Period

The IRS publishes three tables in Publication 590-B:

Uniform Lifetime Table — used by most account owners; the distribution period reflects joint life expectancy of the owner and a hypothetical beneficiary 10 years younger
Joint and Last Survivor Table — used when the sole designated beneficiary is a spouse more than 10 years younger than the account owner
Single Life Expectancy Table — used by eligible designated beneficiaries inheriting accounts

The first RMD can be deferred until April 1 of the year following the year the account holder reaches the applicable starting age. Subsequent RMDs must be taken by December 31 of each calendar year. Deferring the first RMD results in two distributions in the same tax year, which can increase taxable income and affect Medicare premium calculations through Income-Related Monthly Adjustment Amounts (IRMAA) (Medicare.gov, IRMAA).

Distributions must be taken separately from each IRA. However, the total RMD from multiple IRAs may be aggregated and withdrawn from any single IRA or combination of IRAs. This aggregation rule does not apply to 403(b) accounts, which follow a parallel but separately administered aggregation rule. 401(k) accounts held at different employers each require their own individual distribution.

Broader planning frameworks that situate RMD strategy within retirement income sequencing are mapped at the Financial Planning Authority index.

Common Scenarios

Still-working exception: Participants in a current employer's 401(k) who are still employed at the plan sponsor may defer RMDs from that specific plan past age 73, provided the plan document permits it and the participant does not own more than 5% of the sponsoring company (IRS Publication 560).

Inherited IRA — 10-Year Rule: Non-spouse beneficiaries who inherit IRAs from account owners who died after December 31, 2019, are generally subject to the 10-year rule under the SECURE Act of 2019 (Pub. L. 116-94). The entire account balance must be distributed by December 31 of the 10th year following the owner's death. IRS guidance issued in Notice 2022-53 and finalized regulations proposed in 2024 clarified that annual RMDs are also required within the 10-year window when the original owner had reached their required beginning date.

Eligible Designated Beneficiaries: Five categories of beneficiaries qualify for the life expectancy "stretch" method rather than the 10-year rule — surviving spouses, minor children of the deceased owner (until age 21), disabled individuals, chronically ill individuals, and beneficiaries not more than 10 years younger than the decedent (IRS.gov, Eligible Designated Beneficiary).

QCD strategy: Individuals age 70½ or older may direct up to $105,000 (2024 indexed limit) annually from an IRA directly to a qualified charity as a Qualified Charitable Distribution (IRS.gov, QCDs). A QCD satisfies the RMD obligation for the distributed amount and excludes the distribution from gross income, which can reduce adjusted gross income below IRMAA thresholds.

The regulatory context for financial planning provides the broader statutory and agency framework within which IRS retirement distribution rules operate alongside DOL fiduciary standards.

Decision Boundaries

RMD planning involves several discrete decision points that intersect with tax, estate, and income objectives:

Timing of the first RMD: Taking the first distribution in the year it becomes due (rather than deferring to April 1 of the following year) avoids the double-distribution effect that increases taxable income in a single year.
Roth conversion before RMD age: Roth conversions executed prior to the required beginning date reduce the traditional IRA balance subject to future RMDs. The conversion amount is taxable in the year of conversion but may be advantageous if marginal rates in conversion years are lower than projected rates during peak RMD years.
Account aggregation decisions: Because IRA RMDs can be satisfied from any IRA in the owner's portfolio, holders of multiple IRAs can select the liquidation source strategically — preserving accounts with stronger growth positioning while drawing from accounts with lower expected returns.
QCD versus deductible charitable gift: For account owners who itemize deductions, a standard charitable deduction and a QCD produce different outcomes. A QCD reduces AGI directly, while a deductible contribution offsets income only if itemized deductions exceed the standard deduction ($29,200 for joint filers in 2024, per IRS Rev. Proc. 2023-34).
Beneficiary designation interaction: The identity of the designated beneficiary — particularly whether a trust or entity is named — affects post-death distribution options. Naming a non-person entity as beneficiary eliminates the eligible designated beneficiary exception entirely. Coordination with beneficiary designations and estate documents is structurally necessary before elections become irrevocable.

Traditional IRA vs. Roth IRA — RMD Comparison:

Feature	Traditional IRA	Roth IRA
Lifetime RMD required	Yes	No
Distributions taxable	Yes (pre-tax basis)	No (qualified distributions)
Post-death RMD rules	10-year rule or stretch	Same beneficiary rules apply
QCD eligibility	Yes	No

References

📜 4 regulatory citations referenced · ✅ Citations verified Mar 19, 2026 · View update log