IRMAA Calculator

Medicare IRMAA Calculator (Part B & Part D Premium 2026)

High-income Medicare beneficiaries pay an Income-Related Monthly Adjustment Amount (IRMAA) on top of their standard Part B and Part D premiums. Enter your income to estimate your surcharge tier.

Designed for higher-income Medicare beneficiaries who want to understand their premium adjustments.

Which income year to use: CMS uses your MAGI from two years prior to determine your current-year IRMAA. For 2026 Medicare premiums, enter your 2024 MAGI (from your 2024 federal tax return, generally Line 11 of Form 1040 plus tax-exempt interest).
View IRMAA Bracket Table
Individual MAGI Joint MAGI Part B Premium Part D Surcharge
≤ $103,000≤ $206,000$174.70$0.00
$103,001 – $129,000$206,001 – $258,000$244.60$12.90
$129,001 – $161,000$258,001 – $322,000$349.40$33.30
$161,001 – $193,000$322,001 – $386,000$454.20$53.80
$193,001 – $499,999$386,001 – $749,999$559.00$74.20
> $500,000> $750,000$594.00$81.00

Married filing separately: $103,000 threshold for Tier 1; Tier 2+ applies at income above $103,000. Source: CMS. Subject to annual adjustments.

Enter Your Income Details

Enter your annual income in dollars. Commas optional (e.g. 115,000 or 115000).

$
MAGI = Adjusted Gross Income + tax-exempt interest income. Usually found on Line 11 of IRS Form 1040.

This calculator is provided for educational purposes only and does not constitute official Medicare advice. Actual costs may vary. Consult a licensed Medicare advisor for personalized guidance.

Based on official CMS guidelines Updated for 2026 Medicare rates No personal information required

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