Why a 72-Year-Old With $2.2M Faces $7.4K in Annual Medicare Surcharges

A 72-year-old retiree with $2.2 million in a traditional IRA faces a first RMD at age 73. The projected first RMD is about $94,340 based on the Uniform Lifetime Table factor. When combined with other income, including 85% of Social Security, total ordinary income is about $119,840. Federal and state taxes are estimated as manageable using standard deductions and tax brackets. The major cost comes from Medicare IRMAA, which uses modified adjusted gross income to determine premium tiers. Clearing the single threshold of $109,000 places the retiree in Tier 1, adding Part B and Part D surcharges that increase Medicare costs over time.

"A single 72-year-old retiree sitting on a $2.2 million traditional IRA looks, on paper, like a textbook success story. Then the first required minimum distribution (RMD) arrives, and the tax code reveals a second invoice she did not see coming: a Medicare premium surcharge tied to the withdrawal. This situation is showing up frequently on retirement forums right now. Threads on r/retirement and r/Bogleheads are full of recently retired savers who diligently maxed out 401(k)s for decades."

"Age and status: 72, single, first RMD year arrives at 73 Pretax assets: $2.2 million IRA, projected to be roughly $2.5 million by the RMD trigger date First RMD: roughly $94,340 ($2.5M divided by the 26.5 Uniform Lifetime Table factor) Combined ordinary income: about $119,840 once 85% of Social Security is layered in What is at stake: 15+ years of compounding Medicare IRMAA surcharges on top of federal and state tax"

"The federal tax bill itself is manageable. After the $16,100 single standard deduction for 2026 plus the senior add-on, taxable income lands near $103,290. Running that through the 2026 brackets (10% to $12,400, 12% to $50,400, 22% to $105,700) produces roughly $17,638 in federal tax, plus about $5,200 in state tax at a 5% average. The trap is the Medicare income-related monthly adjustment amount (IRMAA). With a modified adjusted gross income of $119,840, she clears the 2026 single IRMAA threshold of $109,000 and lands in Tier 1."

"That triggers a Part B surcharge of about $74 per month ($888 per year) and a Part D surcharge of roughly $13 per month ($156 per year). Layer on her own premiums, and the all-in Medicare cost climbs meaningfully above the standard rate."

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