Medicare premiums climb sharply when your income exceeds certain thresholds, triggering surcharges that can cost thousands annually. Understanding these five common mistakes helps you avoid unnecessary payments.
Medicare uses Income-Related Monthly Adjustment Amounts (IRMAA) to determine your premiums for Parts B and D. The calculation relies on your Modified Adjusted Gross Income from two years prior. In 2024, single filers earning over $97,000 face surcharges on Part B premiums, while married couples exceed the threshold at $194,000. Part D prescription drug premiums follow similar brackets.
The first mistake involves ignoring tax-advantaged retirement accounts. Contributing to a traditional IRA, 401(k), or SEP-IRA reduces your current year income but doesn't affect your IRMAA calculation for two years. However, large distributions from these accounts spike income immediately and trigger surcharges years later. Planning withdrawals strategically across years minimizes this impact.
Selling appreciated assets creates another trap. A stock sale that generates $50,000 in capital gains instantly pushes income higher and determines your Medicare premiums two years forward. Bunching such sales into a single year or spreading them across multiple years affects your surcharge level significantly.
Roth conversions offer benefits but carry timing risks. Converting $100,000 from a traditional IRA to a Roth increases your current year income substantially and raises future Medicare costs. Limiting conversions to years before claiming Medicare or spacing them strategically reduces surcharges.
Delaying income recognition fails as a strategy. Retirees sometimes postpone selling property or collecting payments, hoping to lower current income. This approach backfires when income eventually arrives and your Medicare surcharges spike based on that higher reported income.
Finally, overlooking Social Security timing compounds mistakes. Claiming benefits at 62