The RMD Trap: How a Single $95,000 Withdrawal Blindsided a 73-Year-Old’s Medicare Costs

Why a Routine Withdrawal Casts a Long Shadow

Tom is 73, single, on Medicare, and living the kind of retirement most people spend decades working toward. Social Security brings in about $36,000 a year, and a small pension adds another $24,000. Together, those two income streams kept him comfortably below the threshold that triggers higher Medicare premiums, so for years he paid the standard Part B amount and never gave it a second thought.

In 2024, that changed. Tom took his first Required Minimum Distribution (RMD) from a large traditional IRA. The IRS Uniform Lifetime Table assigns a life-expectancy divisor of 26.5 at age 73, so dividing his roughly $2.5 million balance by that figure produced a withdrawal of about $95,000. He paid the income taxes and moved on, treating it as a one-time obligation. The bill arrived two years later in his 2026 Medicare notice. The pattern repeats itself across retirement forums constantly: a single first withdrawal, no advance warning from any government agency, and a premium that jumped substantially overnight.

The Two-Year Lag That Catches Everyone

Medicare prices its surcharges, known as the Income-Related Monthly Adjustment Amount (IRMAA), using the tax return from two years earlier. Tom’s 2026 premium is therefore set by his 2024 modified adjusted gross income (MAGI), with no warning letter from the IRS or the Social Security Administration (SSA) in between. Adding to the sting in 2026: the standard Part B premium already rose nearly 10% to $202.90 per month, up from $185.00 in 2025, before any IRMAA surcharge enters the picture. About 5.1 million Medicare beneficiaries, roughly 7% to 8% of all enrollees, paid Part B IRMAA surcharges in 2025, and the 2026 Tier 1 entry threshold rising from $106,000 to $109,000 means millions more remain close to the edge.

Here is how the math stacks up for Tom. Social Security and the pension put him near $55,000 of MAGI before any IRA withdrawal. Adding the $95,000 RMD pushes his 2024 MAGI to roughly $150,000. For a single filer in 2026, that figure lands inside the Tier 2 bracket, which covers income above $137,000 and up to $171,000. The Part B surcharge for Tier 2 is $202.90 per month, layered on top of the $202.90 standard premium, for a monthly Part B total of $405.80. His Part B bill effectively doubles. On top of that, the Tier 2 Part D surcharge adds $37.50 per month.

Those two IRMAA surcharges combined total $240.40 per month, or roughly $2,885 for the full year, on top of whatever Tom already would have paid. One mandatory withdrawal, taken without any IRMAA planning, raised his Medicare bill for 12 consecutive months. It is also worth noting that his MAGI of roughly $150,000 cleared the Tier 1 entry threshold of $109,000 by a wide margin, meaning even a considerably smaller RMD could have triggered at least a Tier 1 surcharge. An RMD does not qualify for a Form SSA-44 appeal, which is reserved for a defined set of life-changing events: marriage, divorce or annulment, death of a spouse, work stoppage, work reduction, loss of income-producing property, loss of pension income, and certain employer settlement payments. A large mandatory IRA distribution, however painful, fits none of those categories.

How RMDs Talk to the Rest of Retirement

Once Social Security and a pension are both flowing, every additional dollar of IRA income lands on a base that is already partly taxable. The RMD generates its own income-tax bill, pushes more Social Security into taxable territory, and can shove MAGI across a Medicare cliff in a single transaction. Those cliffs are hard edges. One extra dollar of income can move a retiree into the next tier, and the full surcharge applies for the entire calendar year at the new rate.

Timing, as a result, matters more than the size of any individual withdrawal. Drawing from a traditional IRA during the lower-income years between retirement and the RMD start age often costs less in total taxes and premiums than waiting until withdrawals become mandatory. Under SECURE 2.0, that start age is 73 for most current retirees (those born between 1951 and 1959), rising to 75 for anyone born in 1960 or later. The gap between leaving work and hitting the mandatory distribution age is exactly when proactive planning pays.

What Would Have Helped, and What Still Can

A few strategies can soften the blow, even after the first RMD has already been taken:

1. Qualified Charitable Distributions (QCDs) sent directly from the IRA to a qualified 501(c)(3) count toward the RMD without raising MAGI. The 2026 annual QCD limit is $111,000 per person, up from $108,000 in 2025, indexed for inflation under SECURE 2.0. For a charitably inclined retiree, routing part of the RMD this way remains the cleanest IRMAA fix available. The funds must move directly from the IRA custodian to the charity; a check made out to the account holder first disqualifies the transfer.
2. Partial Roth conversions executed in the years before Medicare and RMDs begin. Converting modest amounts in the late 60s would have shrunk the IRA and reduced the withdrawals it now forces. The strategy remains worth modeling for any remaining lower-income years still ahead, since qualified Roth distributions do not count toward MAGI.
3. A Qualified Longevity Annuity Contract (QLAC). Under IRS Notice 2025-67, up to $210,000 can move into a QLAC in 2026. That amount is excluded from the RMD calculation while it sits in the contract, deferring taxable income until as late as age 85 and removing it from the current RMD base entirely.

The error hardest to undo is treating the first RMD as nothing more than a routine tax event. It is also a Medicare event, on a two-year delay, and the brackets punish carelessness at every edge. A quick MAGI projection each fall, before the calendar year closes, costs nothing. Running those numbers before December rather than after is usually enough to stay on the right side of the next tier. Every retiree’s situation differs, and a tax professional or financial planner familiar with Medicare timing can help model the tradeoffs specific to each household.

Editor’s note: This pass added the approximate count of Medicare beneficiaries who paid IRMAA surcharges in 2025 (about 5.1 million, roughly 7% to 8% of all enrollees), noted that the 2026 Tier 1 entry threshold rose from $106,000 to $109,000, expanded the SSA-44 qualifying life-changing events list to its full eight categories, and added the SECURE 2.0 birth-year distinction governing whether the RMD start age is 73 or 75.

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