Many retirees underestimate how quickly IRMAA 2026 can increase their Medicare premiums. Based on 2024 income, this surcharge applies to both Medicare Part B and Part D. The income thresholds that trigger IRMAA 2026 are often crossed unknowingly, due to events like capital gains, large IRA withdrawals, or even Social Security back pay. If you're not actively managing your taxable inco... https://www.federalpensionadvisors.com/post/2025-irmaa-brackets