RMD and IRMAA Planning — How RMDs Trigger Medicare Surcharges
How do Required Minimum Distributions trigger IRMAA Medicare surcharges?
IRMAA (Income-Related Monthly Adjustment Amount) adds surcharges to Medicare Part B and Part D premiums when your Modified Adjusted Gross Income (MAGI) exceeds certain thresholds. RMDs count toward MAGI — a large RMD can push retirees over an IRMAA bracket, adding hundreds or thousands to annual Medicare costs.
IRMAA uses a two-year lookback: your 2026 IRMAA is determined by your 2024 MAGI. This means RMDs taken today affect Medicare premiums two years from now.
Key RMD Rules
- 12026 IRMAA Part B base premium: $185.00/month (standard). Surcharges apply when 2024 MAGI exceeds thresholds.
- 2Single 2026 IRMAA brackets: $106,000–$133,000 (+$74.00/mo); $133,000–$167,000 (+$187.00/mo); $167,000–$200,000 (+$299.90/mo); $200,000–$500,000 (+$412.10/mo); $500,000+ (+$446.00/mo).
- 3Married filing jointly 2026 IRMAA brackets: thresholds approximately doubled (MFJ): $212,000–$266,000; $266,000–$334,000; etc.
- 4IRMAA applies to Part B and Part D premiums — the annual impact of crossing a bracket ranges from $888 to $5,352 per person.
- 5You can appeal IRMAA using Form SSA-44 if you experienced a qualifying life event (retirement, marriage, divorce, death of spouse) that reduced income.
- 6IRMAA lookback: 2026 premiums based on 2024 income. Plan proactively — income decisions today affect Medicare costs in two years.
IRMAA Cliff Effects: The Most Dangerous RMD Interaction
IRMAA thresholds are "cliffs" — crossing them by $1 triggers the full bracket surcharge. For a single filer in 2026, staying at $105,999 MAGI means the standard $185/month premium. At $106,001 MAGI, the premium jumps to $259/month — an extra $888/year. An unexpected or poorly planned RMD can push MAGI over a cliff. Since IRMAA uses a 2-year lookback, the impact is delayed but lasting.
Strategies to Manage RMD Impact on IRMAA
(1) Pre-73 Roth conversions: converting traditional IRA to Roth before RMDs begin reduces future RMD size, lowering future MAGI. (2) QCDs: a Qualified Charitable Distribution reduces AGI/MAGI by the QCD amount — potentially keeping MAGI below an IRMAA threshold. A $10,000 QCD that keeps you below the first IRMAA threshold saves $888/year per person. (3) Tax-loss harvesting: realizing capital losses in the IRMAA lookback year offsets gains and reduces MAGI. (4) Installment vs. lump sum: for self-employed with irregular income, smoothing income over years may keep MAGI below thresholds.
2026 IRMAA Brackets — Full Single & Married Filing Jointly Reference
IRMAA surcharges apply to both Medicare Part B (medical insurance) and Part D (prescription drug coverage). The table shows the combined annual surcharge for both. Note: the MFJ thresholds below are based on actual 2026 projected brackets. Verify with SSA.gov for official amounts.
| MAGI (Single) | MAGI (MFJ) | Part B Monthly | Part D Monthly Add-On | Combined Annual Surcharge vs. Base | How to Avoid |
|---|---|---|---|---|---|
| ≤ $106,000 | ≤ $212,000 | $185.00 | $0 | — | Standard premium — no action needed |
| $106,001–$133,000 | $212,001–$266,000 | $259.00 | +$12.90 | +$1,042 | QCD or Roth conversion to stay below $106K |
| $133,001–$167,000 | $266,001–$334,000 | $370.00 | +$33.30 | +$2,739 | Maximize QCDs + review Roth conversion plan |
| $167,001–$200,000 | $334,001–$400,000 | $480.90 | +$53.80 | +$4,272 | Aggressive QCD + tax-loss harvesting |
| $200,001–$500,000 | $400,001–$750,000 | $591.90 | +$74.20 | +$5,803 | Pre-73 Roth conversions critical |
| Over $500,000 | Over $750,000 | $626.90 | +$81.00 | +$6,275 | Charitable trust + maximize QCD + estate plan |
Common RMD Mistakes to Avoid
- ⚠Not realizing that IRMAA is "cliff" based — just $1 over a threshold adds the full bracket surcharge for the year.
- ⚠Not planning Roth conversions around IRMAA brackets — a conversion that pushes MAGI $1 over a threshold can cost thousands in Medicare surcharges.
- ⚠Missing the IRMAA appeal process — a major life change (retirement, death of spouse) is a qualifying event for reducing IRMAA based on more recent income.
Related RMD Tools & Guides
Frequently Asked Questions
Disclaimer: This content is for informational purposes only and does not constitute tax or financial advice. RMD rules are based on IRS Publication 590-B and SECURE 2.0 Act provisions. Always consult a qualified tax professional or financial advisor for guidance specific to your situation. IRS rules may change; verify current requirements at irs.gov.