DIVO and PFF generate monthly income through covered calls and preferred stocks, combining to cover the roughly $1,148 annual IRMAA surcharge. VTEB's municipal bond distributions skip federal taxation entirely, so they don't count toward MAGI or push retirees over the $109,000 IRMAA cliff. Medicare's IRMAA surcharges hit like a cliff, where crossing $109,000 by just $1 as a single filer causes Part B premiums to jump by $81 monthly. Earn $1 Over $109,000 and Medicare Charges You $95.70 More a Month. These 3 ...