Medicare
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A US federal health insurance program primarily for people aged 65 and older, funded through payroll taxes (1.45% employee + 1.45% employer) with no earnings cap.
## Medicare
Medicare is the US federal health insurance program for people 65+, certain disabled individuals, and those with end-stage renal disease.
### Parts
| Part | Coverage | Funding |
|------|---------|--------|
| Part A | Hospital care | Payroll tax (no premium if 40+ quarters) |
| Part B | Doctor visits, outpatient | Monthly premium (~$185/month, 2025) |
| Part C | Medicare Advantage (private plans) | Part A + B costs + plan premium |
| Part D | Prescription drugs | Monthly premium (~$35/month) |
### Payroll Tax
1.45% employee + 1.45% employer on all earnings (no cap). High earners pay an additional 0.9% above $200,000 (single) or $250,000 (married).
### IRMAA
Income-Related Monthly Adjustment Amount (IRMAA) increases Part B and D premiums for high-income retirees. Singles earning above $106,000 and couples above $212,000 pay surcharges up to 3.4× the standard premium.