Evolving Your RMD Timing: Expert Insights on Strategic Deferral

Where RMD Timing Decisions Show Up in Real Planning

Most retirement plan participants know the basic rule: once you turn 73 (or 75, depending on your birth year), you must take a required minimum distribution from your traditional IRAs and workplace retirement accounts by December 31 each year. Miss it, and the IRS imposes a 25% excise tax on the amount not withdrawn. But the calendar is not the only constraint. The timing of that withdrawal within the year—or even across two years in certain cases—can meaningfully affect your tax liability, Medicare premiums, and legacy planning.

We see this most often with clients who have multiple IRAs or a mix of pre-tax and Roth accounts. They assume the RMD is a single event, but it's actually a process with several decision points. For example, you can take your RMD in January and reinvest the after-tax proceeds, or wait until December and use the full year of growth inside the account. The choice depends on your cash flow needs, expected tax bracket, and whether you plan to make a qualified charitable distribution (QCD).

Another common scenario involves retirees who are still working and have a 401(k) from their current employer. If you own 5% or less of the company, you may be able to delay RMDs from that plan until you actually retire. This deferral can keep your taxable income lower for several years, allowing your IRA RMDs to be taken from a smaller base. But the rules are precise: the plan must specifically allow this exception, and you cannot have a controlling stake.

We also see timing decisions intersect with Social Security claiming. A large RMD taken late in the year can push provisional income over the threshold that makes Social Security benefits taxable. If you're already collecting, you might want to take your RMD earlier in the year to avoid a surprise tax bill when you file. Conversely, if you're delaying Social Security, a late-year RMD might be fine because you have more control over other income sources.

The key takeaway is that RMD timing is not a one-size-fits-all checkbox. It's a lever that, when pulled thoughtfully, can reduce lifetime taxes and keep more money working for you or your heirs. But the rules are full of traps—like the once-per-year rollover limitation and the aggregation requirement for multiple IRAs. This guide assumes you already understand the basics and want to explore the strategic edges.

Foundations That Even Experienced Retirees Misunderstand

The aggregation rule is not optional

One of the most common mistakes we encounter is the belief that you can take RMDs from separate IRAs independently. In reality, the IRS requires you to aggregate all your traditional IRA balances to calculate the total RMD, but you can withdraw that total from any one IRA. If you take only the RMD from each account separately, you might under-withdraw if one account's balance is higher than its proportional share. The penalty applies to the shortfall across all accounts, not per account.

RMDs from 401(k)s are account-specific

Unlike IRAs, each 401(k) plan must distribute its own RMD. You cannot aggregate a 401(k) with an IRA or with another 401(k) from a different employer. This means if you have two old 401(k)s, you need to calculate and take the RMD from each one. A common workaround is to roll old 401(k)s into a single IRA before the RMD start date, simplifying the process and giving you more flexibility with timing.

The first RMD can be delayed until April 1 of the year after you turn 73

Many people know about the first-year deferral option, but they misunderstand its implications. You can delay your first RMD until April 1 of the year after you reach age 73. However, if you do, you must still take a second RMD by December 31 of that same year. This means two RMDs in one tax year, potentially pushing you into a higher bracket. The deferral is useful only if you expect to be in a lower tax bracket in the year you turn 73 than in the year you turn 74, which is rare.

QCDs can satisfy RMDs tax-free

Qualified charitable distributions allow you to donate up to $100,000 (indexed for inflation) directly from your IRA to a qualified charity. The distribution counts toward your RMD but is excluded from your taxable income. This is a powerful tool for charitably inclined retirees, but it requires planning: the QCD must be made by the RMD deadline, and you cannot take the distribution personally first and then donate it. The check must go directly from the IRA custodian to the charity.

RMDs from Roth IRAs are not required during the owner's lifetime

This is a well-known rule, but it still trips up people who inherit a Roth IRA. Beneficiaries of Roth IRAs must take RMDs, but the rules differ from traditional IRAs. For inherited Roth IRAs, the 10-year rule (under SECURE Act) applies, meaning the entire balance must be distributed by the end of the 10th year after the owner's death. No annual RMD is required during those 10 years, but the tax-free nature of the distributions is preserved.

Patterns That Usually Work for Strategic Deferral

Pattern 1: Early-year distribution for reinvestment

Taking your RMD as early as possible in January gives you the rest of the year to reinvest the after-tax proceeds in a taxable brokerage account. This works best if you expect your tax rate to be similar or lower in the current year, and if you have a long investment horizon. The downside is that you lose the tax-deferred growth on the distributed amount for the remainder of the year. But if you reinvest in a diversified portfolio with a similar asset allocation, the taxable account may offer lower capital gains rates later.

Pattern 2: Mid-year distribution for tax smoothing

If you have variable income from dividends, capital gains, or part-time work, taking your RMD in the middle of the year allows you to estimate your total income more accurately. You can adjust withholding or estimated tax payments accordingly. This pattern is particularly useful if you are subject to Medicare income-related monthly adjustment amounts (IRMAA), which are based on your modified adjusted gross income from two years prior. By controlling the timing of your RMD, you can avoid a spike that triggers higher premiums.

Pattern 3: Late-year deferral paired with QCD

Waiting until November or December to take your RMD gives you more time to decide how much to donate via QCD. You can let your IRA grow for most of the year, then calculate the exact RMD amount and direct a QCD for part or all of it. The charity receives the full amount tax-free, and you reduce your taxable income. This pattern works well if you itemize deductions or want to avoid the standard deduction limitation. However, you must ensure the QCD is processed before the RMD deadline, so start the paperwork in early December.

Pattern 4: Using the 60-day rollover for deferral across years

Under certain circumstances, you can take an RMD and then roll it over into another IRA within 60 days, effectively deferring the tax to the next year. But this is tricky: the IRS allows only one 60-day rollover per 12-month period across all IRAs, and the amount rolled over cannot be excluded from income in the year of distribution. The rollover simply postpones the tax to the year the funds are eventually withdrawn. This is rarely beneficial unless you have a temporary cash need and can redeposit the funds quickly. Many advisors warn against it because the rules are strict and mistakes are costly.

Anti-Patterns and Why Teams Revert to Default Timing

The mistaken belief that RMDs can be postponed indefinitely with a rollover

Some retirees hear about the 60-day rollover and think they can keep deferring their RMD year after year by rolling the distribution back into an IRA. This is not allowed. The IRS explicitly states that RMDs cannot be rolled over. If you take a distribution that is part of your RMD, you cannot roll that amount into another IRA or plan. The only exception is a direct trustee-to-trustee transfer of the entire account balance, which does not count as a distribution, but that is not a rollover of the RMD amount.

Taking RMDs from the wrong account type

If you have multiple IRAs and a 401(k), you might be tempted to take the RMD from the smallest account to avoid selling assets. But this can backfire if that account has a low balance and you need to take a larger RMD from a different account. Remember, IRA RMDs are aggregated, but 401(k) RMDs are separate. Taking a 401(k) RMD from an IRA does not satisfy the 401(k) requirement. We've seen teams revert to default timing—just taking RMDs on December 15 from all accounts—simply to avoid the complexity of tracking multiple rules.

Ignoring the impact on Medicare premiums

IRMAA surcharges are based on your modified adjusted gross income from two years prior. A large RMD in 2024 will affect your 2026 Medicare premiums. Many retirees do not realize this until they get a letter from the Social Security Administration. The typical response is to take RMDs early in the year to spread income, but that only works if you can predict your total income. If you cannot, you might end up with a higher premium anyway. The anti-pattern is to ignore IRMAA entirely and just take the RMD whenever, which can lead to unexpected costs.

Forgetting the once-per-year rollover rule

The IRS limits you to one 60-day rollover per 12-month period across all IRAs. If you use that rollover for a non-RMD purpose, you cannot use it again for a strategic deferral. We see teams revert to default timing because they accidentally used their one rollover for a short-term loan and then cannot execute a planned deferral. Planning ahead is essential.

Maintenance, Drift, and Long-Term Costs of Poor Timing

Tax bracket creep over multiple years

If you consistently take your RMD late in the year, you might find that your investment growth pushes your account balance higher, leading to larger RMDs later. This is a form of drift: your RMD amount grows faster than expected, and you end up in a higher tax bracket. The long-term cost is not just the extra tax; it's also the loss of compounding on the tax paid. Taking RMDs earlier reduces the account balance, slowing future RMD growth.

Missed QCD opportunities

QCDs require advance planning. If you wait until December 20 to decide you want to make a charitable donation, your custodian may not process it in time. The charity must receive the check by December 31. Many retirees miss the QCD window and end up taking a larger taxable RMD instead. Over a decade, this can cost thousands in unnecessary taxes.

Inherited IRA complications

The SECURE Act changed the rules for inherited IRAs. Non-spouse beneficiaries must empty the account within 10 years, with no annual RMD requirement (unless the original owner had already started RMDs). If you are the beneficiary, timing your distributions to minimize taxes is critical. Taking a large distribution in one year could push you into a higher bracket. The default of taking nothing until year 10 can lead to a massive tax bill. Strategic deferral here means spreading distributions over the decade, not delaying to the end.

Coordination with Roth conversions

Many retirees do Roth conversions in the years before RMDs start. But if you have already started RMDs, you can still do conversions, but the RMD must be taken first. The RMD amount cannot be converted. Poor timing—taking the RMD late in the year—can leave you with less time to execute a conversion and may cause you to miss a market dip. The long-term cost is missing the opportunity to convert at a lower tax rate.

When Not to Use Strategic Deferral

When you need the cash flow early in the year

If you rely on your RMD to cover living expenses, delaying until December is not practical. You need the money earlier. In this case, take the RMD as soon as possible to avoid penalties and stress. There is no strategic benefit to waiting if you will spend the money anyway.

When you are in the highest tax bracket permanently

If your income is consistently in the top bracket, the timing of your RMD makes little difference to your marginal rate. You might as well take it early to simplify your taxes. The exception is if you are subject to the net investment income tax (NIIT), which adds 3.8% on investment income above certain thresholds. Even then, the NIIT applies to the RMD itself, so timing does not change the total tax.

When you have a large required distribution from a defined benefit plan

Some retirees have a pension that pays a lump sum or annual minimum distribution. These plans have their own rules and cannot be aggregated with IRAs. If the pension RMD is large, it may already push you into a high bracket, making any additional deferral pointless. Focus on managing the pension distribution instead.

When you are under 59½ and need to take an early distribution

Early distributions from retirement accounts before age 59½ are subject to a 10% penalty unless an exception applies. RMDs do not start until age 73, so if you are younger, you are not dealing with RMDs. But if you inherit an IRA, the 10-year rule applies regardless of age. In that case, strategic deferral might still be useful, but you must consider the penalty if you take a distribution before 59½ (though inherited IRAs are exempt from the early withdrawal penalty).

Open Questions and FAQ

Can I use a QCD to satisfy my RMD if I also take other distributions?

Yes. A QCD counts toward your RMD for the year. You can take a QCD for any amount up to $100,000, and the rest of your RMD can be taken as a normal distribution. The QCD is not taxable, and the normal distribution is taxable. This is a common strategy for retirees who want to donate to charity while managing their tax bracket.

What happens if I miss the RMD deadline?

The IRS imposes an excise tax of 25% on the amount not distributed. If you correct the error within two years, the penalty may be reduced to 10%. You must file Form 5329 with your tax return to report the missed RMD and request a waiver. The IRS may waive the penalty if you can show reasonable cause, but it's not automatic.

Can I delay my RMD if I am still working?

If you are still employed and own 5% or less of the company, you can delay RMDs from your current employer's 401(k) plan until you retire. This does not apply to IRAs or old 401(k)s. You must check your plan document to see if it allows this. Some plans require you to start RMDs at age 73 regardless of employment status.

How does the SECURE 2.0 Act affect RMD timing?

SECURE 2.0 raised the RMD starting age to 73 for those born between 1951 and 1959, and to 75 for those born in 1960 or later. It also reduced the penalty for missed RMDs from 50% to 25% (and 10% if corrected quickly). There are no major changes to timing flexibility, but the higher starting age gives more years for Roth conversions and tax planning.

Should I take my RMD from a traditional IRA or a 401(k) first?

If you have both, you must satisfy the 401(k) RMD from the 401(k) itself. You cannot use an IRA to cover a 401(k) RMD. However, you can choose which IRA to take the aggregated RMD from. Typically, you take from the account with the highest proportion of bonds or cash to avoid selling growth assets. But if you want to do a Roth conversion, you might take the RMD from the IRA you plan to convert later.

Summary and Next Experiments

Strategic RMD timing is not about gaming the system—it's about aligning your distributions with your overall financial plan. The core decision points are: early vs. late in the year, QCD vs. cash, and which account to draw from. The experiments to try next are straightforward.

First, run a projection of your income for the next three years, including RMDs, Social Security, and any part-time work. Identify the years where your marginal rate will be highest, and consider taking larger RMDs earlier (or using QCDs) to smooth the curve. Second, if you are charitably inclined, set up a recurring QCD for a fixed amount each year. This automates the process and ensures you don't miss the deadline. Third, if you have an inherited IRA, create a distribution schedule that spreads the balance over the 10-year window, adjusting for your other income. Fourth, review your Medicare IRMAA brackets and see if delaying an RMD into a lower-income year could reduce your premiums. Finally, consider consolidating old 401(k)s into a single IRA before age 73 to simplify aggregation and timing decisions.

These strategies require careful tracking, but the payoff is lower lifetime taxes and more control over your retirement income. As always, consult a qualified tax professional before implementing any changes, as individual circumstances vary. This article provides general information and should not be taken as personalized advice.