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Medicare Premium & Subsidy Calculator

Estimate your monthly Part B and Part D premiums, applying IRMAA surcharges or subsidies based on income

Simplify Your Medicare Costs

Calculate how much you might pay for Medicare premiums

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What this calculator does

A Medicare premium calculator estimates monthly costs for Medicare Part B and D based on income. Higher earners pay Income-Related Monthly Adjustment Amounts (IRMAA). Understanding premiums helps with retirement healthcare planning.

How it works

Enter your Modified Adjusted Gross Income (MAGI). The calculator applies IRMAA brackets to determine Part B and D premiums.

Formula

2025 base Part B: ~$174.70/month. IRMAA applies above $97K (single) or $194K (married). Premiums increase in tiers.

Tips for using this calculator

  • IRMAA is based on tax return from 2 years prior
  • Life events (retirement) can trigger IRMAA reconsideration
  • Part D IRMAA adds to plan premium
  • Plan for healthcare costs in retirement budget
  • Consult financial advisor for Medicare planning

Frequently asked questions

What triggers higher Medicare premiums?

MAGI above $97K (single) or $194K (married) triggers IRMAA surcharges on Part B and D.

Can I appeal IRMAA?

Yes, if you've had a life-changing event (retirement, divorce) that reduced income. File SSA-44 form.

When should I enroll in Medicare?

Initial enrollment is 3 months before to 3 months after turning 65. Late enrollment incurs permanent penalties.