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. A small pension adds another $24,000. Between the two, his income sat 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 at age 73, the withdrawal from his roughly $2.5 million account came to about $95,000. He paid the income tax and moved on. Two years later, the bill arrived in his 2026 Medicare letter. It is a pattern retirees on online forums describe 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), off your 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. Making this sting worse in 2026: the standard Part B premium already jumped nearly 10% to $202.90 per month, up from $185.00 in 2025, before any IRMAA surcharge enters the picture.

Here is the back-of-the-napkin math. Social Security and the pension put Tom near $55,000 of MAGI before the withdrawal. Add the $95,000 RMD on top, and 2024 MAGI lands near $150,000. For a single filer in 2026, that sits in the Tier 2 bracket, covering 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 total of $405.80. His Part B bill doubles. On top of that, the Tier 2 Part D surcharge adds another $37.50 per month.

Combined, the two IRMAA surcharges total $240.40 per month, or roughly $2,885 for the full year, on top of whatever Tom would have paid anyway. One mandatory withdrawal, taken without any IRMAA planning, raised his Medicare bill for 12 months straight. It is also worth noting that Tom’s MAGI of ~$150,000 cleared the Tier 1 entry threshold of $109,000 by a wide margin, so even a somewhat smaller RMD could have triggered a 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 flowing, every extra dollar of IRA income lands on a base that is already partly taxable. The RMD creates its own income-tax bill, pushes more of Social Security into taxable territory, and can shove MAGI across a Medicare cliff. The cliffs are hard edges: a single additional dollar of income can land you in the next tier, and the surcharge applies for the entire year at the new rate.

That is why timing matters more than size. Drawing from a traditional IRA in 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 moves can soften the blow, even after the first RMD:

1. Qualified Charitable Distributions sent directly from the IRA to a qualified 501(c)(3) count toward the RMD without raising MAGI. For a charitably inclined retiree, routing part of the RMD this way is the cleanest IRMAA fix available.
2. Partial Roth conversions done in the years before Medicare and RMDs begin. Converting modest amounts in the late 60s would have shrunk the IRA and the withdrawals it now forces. This strategy remains worth modeling for any remaining lower-income years.
3. A Qualified Longevity Annuity Contract (QLAC). Up to $210,000 can move into a QLAC in 2026, deferring that income until as late as age 85 and removing it from the current RMD base entirely.

The mistake hardest to undo is treating the first RMD as a one-year tax event. It is also a Medicare event, on a two-year delay, and the brackets are unforgiving at the edges. 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 is different, so running those numbers before December rather than after is time well spent.

Editor’s note: This article has been updated to reflect 2026 IRMAA brackets, including the correct Tier 2 income range ($137,000 to $171,000) for single filers, the full combined surcharge of $2,885 annually (Part B and Part D combined), the 2026 standard Part B premium of $202.90 (up from $185.00 in 2025), and the confirmed 2026 QLAC contribution limit of $210,000.

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