I Paid Into Medicare All My Life — Why Do I Still Have to Pay a Premium?

• This is one of the most common Medicare questions we hear.
• While you were working, the Medicare payroll taxes taken from your paycheck primarily helped finance Medicare Part A — Hospital Insurance.
• That is why most people who worked and paid Medicare taxes for at least 10 years qualify for premium-free Part A.
• Medicare Part B — doctors and outpatient services — is financed differently. Beneficiaries pay monthly premiums, but those premiums pay only part of the cost of the program.
• Medicare Part D prescription drug coverage is also financed separately through beneficiary premiums, federal government contributions and state contributions.
• In other words, paying Medicare payroll taxes while you worked did not mean that you prepaid all of your future Medicare Part B and Part D premiums.
• Learn more about Medicare Parts A, B, C and D
  
• Source:
  • Medicare.gov — How is Medicare funded?
    

How Much of Medicare Part B Are You Actually Paying?

• The standard Medicare Part B premium is generally set to cover approximately 25% of average Part B program costs.
• The federal government finances approximately the remaining 75% through general revenues.
• For 2026, the standard Part B premium is $202.90 per month.

• The percentages above describe how the standard Part B premium is calculated based on average program costs. They do not represent an individual’s actual medical expenses or claims.
• Sources:
  • CMS — Brief Summaries of Medicare & Medicaid
    
  • CMS — 2026 Medicare Parts A & B Premiums and Deductibles
    

2026 Medicare Part B & Part D High-Income Premiums — IRMAA

• Most Medicare beneficiaries pay the standard Part B premium.
• Higher-income beneficiaries pay an additional amount called the Income-Related Monthly Adjustment Amount — IRMAA.
• For 2026, Social Security generally uses income reported on your 2024 federal income tax return.
• The higher your income, the larger the percentage of Medicare Part B program costs you are required to pay.

• *Part D IRMAA is added to whatever premium your prescription drug plan charges.
• Different IRMAA rules apply to some people who are married, lived with their spouse during the year, and file separate tax returns.
• Sources:
  • CMS — Official 2026 Medicare Premium & IRMAA Amounts
    
  • Social Security — 2026 Medicare Premiums
    

What About Medicare Part D Prescription Drug Coverage?

• Part D should not simply be described as “you pay 25% and the government pays 75%.”
• For 2026, Medicare actuaries estimate Part D financing comes approximately from:

• These are overall Part D program financing percentages — they do not mean every beneficiary personally pays exactly 13% of the cost of his or her drug coverage.
• Actual Part D premiums vary by plan.
• Higher-income beneficiaries may also have a separate Part D IRMAA surcharge collected by Medicare in addition to the plan’s premium.
• Resources:
  • KFF — Current Snapshot of Medicare Part D
    
  • Medicare.gov — How Medicare Is Funded
    

What Year’s Income Does Medicare Use for IRMAA?

• For your 2026 Medicare premiums:
  • Social Security generally uses the most recent federal tax return supplied by the IRS.
  • Normally, that means your 2024 income tax return for determining your 2026 IRMAA.
• What income counts?
  • Medicare uses Modified Adjusted Gross Income — MAGI.
  • For IRMAA purposes, MAGI is generally your Adjusted Gross Income plus tax-exempt interest.
• If your income has dropped:
  • You may not necessarily have to continue paying an IRMAA based on an older, higher-income year.
  • Certain life-changing events may allow Social Security to use more recent income information.
• Ask Social Security to lower an IRMAA after a qualifying life-changing event
  
• Download Form SSA-44 — Medicare Income-Related Monthly Adjustment Amount Life-Changing Event
  
• Our Medicare IRMAA — High Income Part B & Part D Surcharge Information
  

The Bottom Line — Medicare Was Never Completely Prepaid

• The Medicare taxes you paid while working primarily financed Part A Hospital Insurance.
• Part B works differently.
  • The standard beneficiary premium is intended to cover about 25% of average Part B program costs.
  • Federal general revenues finance roughly the other 75%.
• Higher-income beneficiaries pay a greater share.
  • Depending upon income, the Part B premium can represent approximately 35%, 50%, 65%, 80% or 85% of average program costs.
• Part D is financed differently and Part D premiums vary by the prescription drug plan you select.
• So when someone asks, “Why am I paying for Medicare when I already paid Medicare taxes my whole life?”, the important distinction is that the payroll taxes helped earn and finance Part A — they did not prepay all future Part B and Part D costs.
• Questions about Medicare premiums, IRMAA, Medicare Advantage, Medigap or Part D?
  • Email: [email protected]
  • Schedule a Zoom Meeting