For many retirees, Required Minimum Distributions (RMDs) feel like a box to check: take the required amount, pay the tax, move on. But treating RMDs as a mechanical exercise, rather than a strategic decision, can quietly create costly tax consequences over time.
RMDs are one of the most misunderstood aspects of retirement planning. The rules are clear, but the implications are anything but simple. In our work with retirees, we consistently see the same mistakes repeated, often by people who have done everything else “right” financially.
The good news? Most RMD missteps are avoidable with proactive planning and a broader view of how distributions fit into an overall retirement and tax strategy.
Mistake #1: Taking only the minimum, every time
RMD stands for Required Minimum Distribution, not “recommended” or “optimal” distribution. Yet many retirees assume the IRS-mandated minimum is the smartest amount to take.
In reality, taking only the minimum can backfire.
Because IRA balances continue to grow tax-deferred, consistently limiting withdrawals can create a snowball effect, larger balances, larger future RMDs, and potentially higher tax brackets later in retirement.
Consider a married couple filing jointly who remains in the 12% federal tax bracket up to $100,800 of taxable income. If they have room in that lower bracket and still take only the minimum RMD, they may be missing an opportunity. Five years later, rising RMDs could push them into the 22% bracket, nearly doubling their tax rate on those dollars.
The takeaway: RMDs should be coordinated with tax brackets, not viewed in isolation. In many cases, intentionally taking more than the minimum, when tax rates are favorable, can reduce lifetime taxes.
Mistake #2: Ignoring life events that change the tax equation
Retirement planning doesn’t happen in a vacuum. Medical expenses, charitable giving, the loss of a spouse, or changes in income can all shift the tax landscape in a given year.
We often see retirees overlook opportunities to align IRA distributions with deductions. For example, a married couple facing unusually high medical expenses may be able to take additional IRA withdrawals at little or no incremental tax cost, using those deductions as a tax shield.
Failing to adjust distributions when life throws a curveball is a missed planning opportunity. This is why coordination with a tax professional during the year, not just at filing time, matters.
Mistake #3: Combining RMDs between spouses
This mistake is surprisingly common and can trigger penalties.
Each individual with an RMD requirement must satisfy it from their own IRA account. We’ve seen couples assume they can simplify by taking both spouses’ RMDs from one account, as long as the total dollar amount is correct.
The IRS does not agree.
If Jane’s RMD is not taken from Jane’s IRA, even if the household withdraws the correct combined total, Jane is considered to have missed her RMD. That can result in penalties and interest if not corrected promptly.
The rule is simple: RMDs are individual obligations, even within a household.
Mistake #4: Mishandling inherited IRAs
Inheriting an IRA can be emotionally overwhelming, and unfortunately, that’s when costly mistakes are most likely to happen.
Some key missteps we see include:
- Failing to determine whether the original owner’s RMD was satisfied before death
- Not properly retitling the inherited IRA
- Taking a distribution payable directly to the beneficiary, unintentionally triggering full taxation
One real-world example involved a beneficiary who received a check for more than $1 million from an inherited IRA, made payable directly to him. Once the funds were distributed that way, the entire amount became taxable, with no remedy available.
Inherited IRAs require precision. Transfers must be direct, accounts must be titled correctly, and distribution timelines, especially under the 10-year rule must be carefully managed.
Mistake #5: Neglecting beneficiary designations
Beneficiary forms often sit untouched for years, even decades. That can undo otherwise solid estate planning.
If a beneficiary predeceases the IRA owner and the designation is not updated, the IRA may default to the estate. That often triggers accelerated distribution rules, such as a five-year payout forcing large taxable distributions in a compressed timeframe.
Even more painful are cases involving outdated designations after divorce. Unlike wills, beneficiary forms generally override other estate documents. Once assets transfer, there is no going back.
Beneficiary designations should be reviewed regularly—annually is a reasonable cadence—and after any major life change.
The bigger picture: RMDs are a strategy, not a rulebook
The most important mistake retirees make is treating RMDs as a compliance exercise rather than a planning opportunity.
Distribution timing, tax brackets, life events, beneficiary planning, and long-term cash flow are all interconnected. Addressing RMDs without considering the full picture can lead to higher taxes, reduced flexibility, and avoidable stress for heirs.
Retirement is not static. The most effective plans evolve and RMD strategies should evolve with them.
With thoughtful planning and the right guidance, RMDs can be managed in a way that supports long-term financial security, rather than quietly eroding it.
