RMD Planning Under the Current Age Schedule: A Decision Guide

Retirement account rules have a habit of shifting the goalposts, and the age at which the IRS forces you to start pulling money out of tax-deferred accounts is one of the more consequential moves in the last few years. The current schedule ties your required start age to your birth year, and getting that date wrong by even a single year can mean an unnecessary penalty or a distribution you didn’t need to take yet.

That’s the headline. The planning that surrounds it, deciding when to take the first distribution, whether to convert funds to a Roth before the clock starts, how to layer in charitable giving, and how to avoid the handful of mistakes that trip up otherwise careful savers, is where the real decisions live. This guide walks through the current age schedule in detail, gives you a framework for deciding how to act on it, and works through the math with real numbers.

The RMD Age Schedule You’re Actually Working With

Required minimum distributions exist because tax-deferred accounts, including traditional IRAs, most 401(k)s, 403(b)s, and similar workplace plans, were never meant to shelter money indefinitely. At some point the government wants its share of tax revenue on money that grew untaxed for decades. The trigger age for that “some point” has moved three times in six years, and each move has pushed the deadline later.

Before 2020, the rule was age 70½. The original SECURE Act, effective in 2020, moved it to 72. Then the SECURE 2.0 Act, signed into law at the end of 2022, pushed it further, and it did so on a staggered timeline tied to birth year rather than a single flat number. That staggering is the part people get wrong most often, because it means your neighbor born two years before you might already be three years into RMDs while you haven’t started at all.

Why 1960 Is the Hinge Birth Year

Here is the schedule as it stands for 2026 and the years ahead:

The 1959 birth cohort deserves a special mention, because an early drafting inconsistency in SECURE 2.0 briefly suggested people born in that single year might face two different ages, 73 and 75, at the same time, which is obviously impossible for one person. The IRS resolved the ambiguity in its 2024 proposed regulations, confirming that anyone born in 1959 uses age 73, the same as the rest of the 1951–1959 cohort. If you were born in that year and read older commentary online, treat anything claiming age 75 applies to you as outdated.

The practical upshot of the staggered schedule is that a person born in December 1959 starts RMDs a full two years before someone born in January 1960, purely because of which side of a birthday line they fall on. That two-year gap is not a rounding error in a retirement plan; it’s two extra years of tax-deferred compounding, two extra years of potential Roth conversion space, and two extra years before Medicare’s income-related surcharges start reacting to forced withdrawals.

A Decision Framework for RMD Planning Before You Hit the Threshold

Waiting until the year you turn 73 or 75 to think about RMDs is like waiting until the moving truck arrives to start packing. The years leading up to your required beginning date are when almost all of the useful decisions get made. Use this sequence:

1. Pin down your exact trigger age and required beginning date. Confirm your birth year against the table above, then mark the calendar year of your first mandatory distribution and the April 1 fallback deadline that follows it.
2. Map the gap years. Count how many tax years you have between now and your first RMD year. Those years — often called the “gap” or “low-tax window” — are typically your best opportunity for Roth conversions, capital-gain harvesting, or simply spending down taxable accounts first so you enter RMD age with a smaller forced-withdrawal base.
3. Decide whether to take your first RMD in the trigger year or delay it to April 1. Delaying feels appealing because it postpones a tax bill, but it means two RMDs land in the same later calendar year, which can push you into a higher bracket or trigger a bigger Medicare surcharge two years after that.
4. Build your charitable and account-aggregation plan. If giving to charity is part of your life, qualified charitable distributions (QCDs) become available at 70½ and can offset RMD income starting the year they’re required. Decide which accounts you’ll aggregate for calculation purposes and which need separate, plan-specific treatment.
5. Revisit the plan every year, not just once. Account balances move, tax brackets get adjusted for inflation, and Congress has changed this rule three times in six years. Treat the plan as a living document, not a one-time decision.

Evaluation Criteria: What Actually Matters When You Choose an RMD Strategy

Not every retiree weighs these factors the same way, but any sound RMD strategy has to grapple with all of them before you can call it complete.

• Marginal tax bracket impact. An RMD is ordinary income, full stop. The question is whether that income lands in a bracket you’re already in from Social Security and pensions, or whether it pushes you into a new, higher one.
• Medicare IRMAA exposure. Income-related monthly adjustment amounts for Medicare Part B and Part D use a two-year lookback. A large RMD or Roth conversion this year can raise your premiums two years from now, so timing matters as much as the amount.
• Legacy and beneficiary goals. If you’re unlikely to spend down the account and plan to leave it to heirs, the calculus shifts toward minimizing lifetime taxes across two generations rather than just your own.
• Actual cash-flow need. Some retirees need every dollar of the RMD to cover living costs. Others are forced to withdraw money they don’t need yet, which reframes the question toward what to do with the leftover cash after taxes.
• Account complexity and aggregation rules. Multiple IRAs can be combined for RMD-calculation purposes; multiple 401(k)s generally cannot. The more accounts you hold across employers, the more this becomes an administrative project, not just a tax one.
• Reversibility. A Roth conversion, once completed, cannot be undone under current law. An RMD, once taken, is simply taken. Weigh how much certainty you need before acting on either.

Comparing Your Main RMD-Era Options

Before comparing specific strategies, it helps to see why the age schedule matters mechanically, not just as a compliance date. The amount you’re forced to withdraw each year is a percentage of your prior year-end balance, and that percentage climbs steadily as you age, because the IRS divisor, drawn from the Uniform Lifetime Table, shrinks every year. The chart below shows the required withdrawal rate at several ages, with a dashed marker showing where the old, pre-2023 trigger age of 72 sits for comparison.

Two things stand out. First, waiting from 73 to 75 doesn’t just delay the first withdrawal; it means your first mandatory percentage is already higher once you finally start. Second, the curve steepens with age regardless of when you begin, which is exactly why gap-year planning (Roth conversions, spend-down sequencing) tends to matter more the longer you can push meaningful withdrawals into the future.

With that mechanic in mind, here’s how the main strategic choices stack up against each other:

Worked Example: Two Birth Years, Two Very Different Timelines

Numbers make this concrete. Consider two hypothetical savers with similar account balances but birth years on opposite sides of the 1960 line.

Person A, born March 1958. Under the current schedule, Person A’s RMD trigger age is 73, which falls in 2031. Suppose the December 31, 2030 balance across all traditional IRAs is $900,000. The Uniform Lifetime Table divisor for age 73 is 26.5. Dividing $900,000 by 26.5 produces a first-year RMD of roughly $33,962.

Person B, born July 1962. Person B’s trigger age is 75, which falls in 2037, six years later than Person A’s, and four years later than Person A’s own age-75 birthday would be. Assume Person B’s account, benefiting from four extra years without any forced withdrawals, has grown to $1,050,000 by December 31, 2036. The divisor for age 75 is 24.6. Dividing $1,050,000 by 24.6 produces a first-year RMD of roughly $42,683.

Person B’s dollar RMD is larger, partly because the balance had more years to compound without mandatory withdrawals chipping away at it, and partly because the required percentage at age 75 (4.07%) is itself higher than the percentage at age 73 (3.77%). The extra runway cuts both ways: more years of tax deferral and potential growth, but also a bigger single number landing on a tax return once withdrawals finally begin. Neither outcome is automatically better; it depends on what each saver did with those extra years, particularly whether Person B used the gap to convert some of that balance to a Roth account while filling lower tax brackets.

Now layer in the April 1 delay option. If either person chose to push their first RMD to the following April, they would owe that first distribution and the second year’s regular RMD in the same twelve-month window. For Person A, that would mean two distributions landing in 2032 instead of one in 2031 and one in 2032, a choice that only makes sense if 2031 income is unusually high (say, from a final year of consulting income) and 2032 is expected to be materially lower.

Common Mistakes That Blow Up RMD Planning Under the New Schedule

• Still planning around age 72 or 70½. Plenty of calculators, old articles, and even well-meaning advisors haven’t caught up to the 2023 change. If your birth year is 1951 or later, age 72 is simply the wrong number.
• Using the wrong life-expectancy table. Most account owners use the Uniform Lifetime Table. The exception is a sole spousal beneficiary more than ten years younger, who uses the Joint and Last Survivor Table instead, which produces a smaller required percentage. Applying the wrong table either overstates or understates the required amount.
• Assuming all retirement accounts aggregate together. Multiple traditional IRAs can be combined into one RMD figure. Multiple 401(k)s from different employers generally cannot; each plan’s RMD must be calculated and withdrawn on its own.
• Taking the QCD after other withdrawals in the same year. A qualified charitable distribution only offsets the RMD cleanly when it’s structured as a direct transfer and the ordering within the tax year is handled correctly; delaying it until after other withdrawals have already satisfied the RMD amount can defeat the purpose.
• Missing the deadline and assuming the old 50% penalty still applies. The excise tax dropped to 25% under SECURE 2.0, and to 10% if corrected within two years, still real money, but a materially different number than what many retirees remember from years past.
• Overlooking the two-year IRMAA lookback. A large RMD or a big Roth conversion this year can raise Medicare premiums two years from now. Retirees are frequently surprised by a premium increase that traces back to a decision made two tax years earlier.
• Misapplying the still-working exception. This exception only delays RMDs from your current employer’s plan, and only if you own less than 5% of that company. It does nothing for IRAs or for 401(k)s left behind at a previous job.
• Assuming Roth 401(k) balances still require RMDs. Since 2024, Roth 401(k) and Roth 403(b) accounts no longer generate lifetime RMDs for the original owner, matching the long-standing Roth IRA rule. Treating them the same as pre-tax balances leads to withdrawals that were never required.
• Applying the age-73/75 schedule to an inherited account. Most non-spouse beneficiaries who inherited after 2019 fall under a 10-year rule, not the age-based schedule described here, and annual withdrawals may be required inside that window depending on the original owner’s age at death.

Practical Checklist Before Your First RMD Year

• ☐ Confirm your exact trigger age (73 or 75) against your birth year, not against an old article or outdated calculator.
• ☐ Calculate your required beginning date and decide, deliberately, whether to take the first RMD in the trigger year or push it to the following April 1.
• ☐ List every tax-deferred account you hold and note which custodian calculates RMDs for you versus which ones you must calculate yourself.
• ☐ Identify which accounts can be aggregated (traditional IRAs together) and which must be withdrawn separately (each employer plan on its own).
• ☐ Model at least two scenarios for the gap years before your trigger age: a “convert aggressively” scenario and a “do nothing” scenario, and compare lifetime tax outcomes.
• ☐ If charitable giving is part of your plan, set up a QCD with your custodian before other distributions are taken for the year.
• ☐ Check whether the still-working exception applies to any current employer plan before assuming you must start withdrawals.
• ☐ Ask your tax preparer to project the IRMAA impact two years out before finalizing a large RMD or conversion amount.
• ☐ Confirm whether any accounts are inherited, and if so, apply the separate inherited-account rules rather than this age schedule.
• ☐ Set a calendar reminder well before December 31 each year, not just for the first RMD, but every year after.

Key Takeaways

• Your RMD trigger age depends on your birth year: 73 for those born 1951–1959, 75 for those born 1960 or later.
• The required withdrawal percentage climbs every year you age, so delaying the start doesn’t shrink the eventual burden; it can enlarge the first number due to extra compounding and a higher required rate.
• The gap years before your trigger age are usually the best window for Roth conversions and other tax-bracket management, precisely because that income is optional rather than forced.
• The excise tax for a missed RMD is now 25%, reduced to 10% if corrected within two years, which is lower than the historic 50% penalty, but still worth avoiding entirely.
• Aggregation rules differ by account type: IRAs can combine, most employer plans cannot.
• Inherited accounts almost never follow this age-based schedule; check the separate 10-year and annual-distribution rules instead.

Frequently Asked Questions

For a deeper walkthrough of how the annual RMD calculation actually works once you’re past the trigger age, including how the divisor changes each year and how to handle multiple accounts, see this site’s guide to Traditional IRA required minimum distribution rules.

References

• Internal Revenue Service, “Retirement Topics — Required Minimum Distributions (RMDs),” irs.gov.
• Internal Revenue Service, Publication 590-B, “Distributions from Individual Retirement Arrangements (IRAs),” Uniform Lifetime Table.
• Internal Revenue Service, Notice 2023-23 and related SECURE 2.0 Act guidance on required beginning dates and excise tax reductions.
• U.S. Congress, SECURE 2.0 Act of 2022 (enacted as part of the Consolidated Appropriations Act, 2023).
• Internal Revenue Service, proposed and final regulations under Section 401(a)(9), addressing inherited account distribution rules and the 1959 birth-year clarification.
• Centers for Medicare & Medicaid Services, guidance on Income-Related Monthly Adjustment Amount (IRMAA) determinations and lookback timing.