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 with growing frequency on retirement forums. Threads on r/retirement and r/Bogleheads are full of recently retired savers who diligently maxed out 401(k)s for decades, only to discover at age 73 that the IRS and the Centers for Medicare and Medicaid Services treat their forced withdrawals as part of a single blended income figure for Medicare pricing. Suze Orman has hammered the rule on her podcast for years, reminding listeners that RMDs must begin by April 1 of the year after you turn 73.
A Case Study
- 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. The 2026 standard deduction for a single filer is $16,100, and seniors 72 and older add another $2,050 on top of that, bringing the deduction stack to $18,150. The One Big Beautiful Bill Act (OBBBA), signed into law in 2025, also created a temporary $6,000 senior deduction available through 2028. For this retiree, that bonus phases out at 6% of MAGI above $75,000, which erases most of it at her income level, leaving only a partial benefit. Even so, taxable income lands near $101,000 after deductions. Running that through the 2026 single-filer brackets (10% to $12,400, 12% to $50,400, 22% to $105,700) produces roughly $17,200 in federal tax, plus about $5,000 in state tax at a 5% average rate.
The trap is the Medicare income-related monthly adjustment amount (IRMAA). With a modified adjusted gross income (MAGI) 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 $81.20 per month and a Part D surcharge of $14.50 per month, for a combined $95.70 per month, or $1,148 per year. Layer on her base Part B premium of $202.90 per month, and total Medicare costs climb well above what a neighbor with $108,000 in income pays for identical coverage.
The danger compounds at the next threshold. One ill-timed capital gain or Roth conversion that pushes MAGI above $137,000 moves her into Tier 2, where the Part B surcharge jumps to $202.90 per month and the Part D surcharge rises to $37.50 per month, totaling $240.40 per month or $2,885 per year in IRMAA alone. Over a 15-year retirement window, cumulative surcharges plausibly run $25,000 to $45,000, and that figure assumes she never trips a higher tier.
A Strategy That Could Move the Needle
For this retiree, the qualified charitable distribution (QCD) is the dominant lever. The 2026 OBBBA changes make QCDs even more powerful than before: the law introduced a new 0.5% AGI floor on itemized charitable deductions and capped the tax benefit of those deductions at 35 cents on the dollar for high-bracket taxpayers. A QCD sidesteps both restrictions entirely because it is an exclusion from income, not a deduction.
- Use QCDs to satisfy the RMD. She can direct up to $111,000 in 2026 straight from the IRA to qualified charities. The distribution counts toward the RMD but never hits MAGI. If she was already planning to give $20,000 to $40,000 annually to her church, alma mater, or other charity, routing it through a QCD wipes out the IRMAA exposure entirely and shaves thousands off federal tax. This is the single highest-return move available to her. One timing rule matters: the QCD must be the first distribution processed from the IRA in the calendar year. Any regular IRA withdrawal taken before the QCD is applied to the RMD first and cannot be reclassified later.
- Calibrate discretionary withdrawals to the next IRMAA cliff. If she needs cash beyond the RMD, a taxable brokerage account is the right source if she holds one alongside the IRA. Long-term capital gains at her income level fall in the 15% bracket, and she can size sales to keep MAGI a few thousand dollars below the Tier 2 line at $137,000. The mistake is bunching a large gain and an RMD in the same tax year.
- Skip the Roth conversion conversation. The pre-RMD conversion window (ages 60 to 72) closed for her. Converting now adds directly to the MAGI that already triggers IRMAA, which compounds the surcharge rather than relieving it. Roth conversions belong to younger retirees still below the IRMAA threshold, not to someone already in Tier 1.
Three concrete actions follow from the above. First, identify charitable intent before year-end and instruct the IRA custodian to process QCDs directly to the recipients. Checks made out to the retiree and then forwarded do not qualify as valid QCDs. Second, ask the custodian for a written projection of the Dec. 31 balance so the RMD number is locked in early, not estimated in April. Third, build a simple MAGI tracker with the $137,000 Tier 2 threshold as a hard ceiling for the year, accounting for Social Security, any investment income, and the RMD in a single running total.
The Medicare surcharge is the quieter cost in this scenario. It compounds annually, and a properly executed QCD can erase it outright.
Editor’s note: This article was updated to reflect the correct 2026 IRMAA Tier 1 surcharge amounts ($81.20/month for Part B and $14.50/month for Part D, totaling $1,148/year, per CMS), the correct Tier 2 surcharge ($2,885/year), the 2026 QCD annual limit of $111,000 (up from $108,000 in 2025), and added context about the One Big Beautiful Bill Act’s effect on charitable deductions and the senior bonus deduction phaseout.
Contact [email protected] for any questions or corrections.