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. Using the IRS Uniform Lifetime Table divisor of 26.5 for age 73, the withdrawal from his roughly $2.5 million account came to about $95,000. He paid the income taxes and moved on. The bill from that single decision arrived two years later in his 2026 Medicare notice. Retirees on personal-finance forums describe the pattern constantly: a single first withdrawal, no advance warning, 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 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.

Here is how the math stacks up. Social Security and the pension put Tom near $55,000 of MAGI before the withdrawal. Adding the $95,000 RMD pushes his 2024 MAGI to roughly $150,000. For a single filer in 2026, that falls 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.

Combined, those two IRMAA surcharges 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 Tom’s MAGI of roughly $150,000 cleared the Tier 1 entry threshold of $109,000 by a wide margin, meaning even a somewhat 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 genuine life-changing events such as retirement, marriage, divorce, or the death of a spouse.

How RMDs Talk to the Rest of Retirement

This is where the pieces connect. 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. 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.

That is why timing matters more than the size of any individual withdrawal. Drawing from a traditional IRA during the lower-income years between retirement and age 73 often costs less in total taxes and premiums than waiting until withdrawals become mandatory.

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. For a charitably inclined retiree, routing part of the RMD this way remains the cleanest IRMAA fix available.
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.
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 one-year 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, is usually all it takes to stay on the right side of the next tier. Every retiree’s situation differs, so running those numbers before December rather than after is time well spent.

Editor’s note: This article has been updated to include the 2026 QCD annual limit of $111,000 per individual (increased from $108,000 in 2025) and to note that the $210,000 QLAC limit is confirmed by IRS Notice 2025-67 as an inflation-indexed figure.

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