SSA pulls your MAGI from 2 years prior to set this year's surcharge. 2024 IRMAA is based on 2022 tax return MAGI.
Your 2024 IRMAA Picture
IRMAA tier
Tier 2
Part B base premium
$174.70
Part B IRMAA surcharge
$69.90
Part D IRMAA surcharge
$12.90
Total monthly Part B
$244.60
Annual IRMAA cost (both spouses if MFJ)
$1,994
SSA uses MAGI = AGI + tax-exempt interest from Form SSA-44. You can appeal IRMAA on Form SSA-44 after a Life Changing Event (retirement, marriage, death of spouse, work reduction, property loss). Roth conversions, capital gains, and lump-sum IRA withdrawals can push you up multiple tiers.
2024 tiers per CMS Notice. 42 USC §1395r(i) (Part B) and §1395w-113(a)(7) (Part D). Surcharges apply per enrolled spouse. Educational tool, not advice. Call 689-331-5723 or email info@zerofusstaxes.com.