What This Letter Means:
This letter means SSA looked at your tax return from two years ago and decided your income was high enough to charge you a higher Medicare Part B (and sometimes Part D) premium. This is called IRMAA — Income-Related Monthly Adjustment Amount. The standard Part B premium in 2026 is $202.90/month. If your income was above $106,000 (single) or $212,000 (married filing jointly), you pay more.
But here's what most people miss: if your income has DROPPED since that tax year — because you retired, lost a job, got divorced, or your spouse died — you can appeal and get the surcharge removed.
| Single Filer | Married Filing Jointly | Part B Monthly Premium | Surcharge |
|---|---|---|---|
| ≤$106,000 | ≤$212,000 | $202.90 | $0 |
| $106,001–$133,000 | $212,001–$266,000 | $285.90 | $83.00 |
| $133,001–$167,000 | $266,001–$334,000 | $408.20 | $205.30 |
| $167,001–$200,000 | $334,001–$400,000 | $530.50 | $327.60 |
| $200,001–$500,000 | $400,001–$750,000 | $652.80 | $449.90 |
| >$500,000 | >$750,000 | $694.90 | $492.00 |
Important: No hard deadline for IRMAA appeal, but file ASAP — you keep paying the higher premium until the appeal is processed.
IRMAA catches people off guard every year because SSA uses income from TWO years ago. The most common situation I saw: someone retires in 2025 after earning $180,000. In 2026, they're living on $40,000 in Social Security. But SSA is still charging them based on the $180,000. The fix is simple — file SSA-44, show you retired, estimate your current income. SSA processes these quickly, usually 30–60 days.
And here's a tip most people miss: you can file SSA-44 BEFORE you get the IRMAA letter if you know your income dropped. Don't wait for the surcharge to hit — be proactive.
Also: if you're doing Roth conversions in retirement, be aware that conversion income counts as MAGI and can trigger IRMAA two years later. Plan your conversions carefully.