Medicare Part A Premium Calculator
Key takeaway: Most people get Medicare Part A (hospital insurance) for free because they or their spouse worked and paid Medicare taxes for at least 10 years — but if you haven't, you could owe up to $565 per month just for the coverage itself, before any hospital bills.
A quarter of coverage — sometimes called a "work credit" — is the unit Medicare uses to measure your work history. In 2026, you earn one quarter of coverage for every $1,810 in wages or self-employment income you report, up to a maximum of four quarters per year. You don't have to earn the money in a literal quarter of the calendar year — you could earn all four credits in January and you'd still get four credits for the year.
To earn premium-free Part A, you need 40 quarters total, which works out to 10 years of work at any level above $1,810 per quarter. The quarters don't have to be consecutive. A few summers of part-time work in your 20s count the same as full-time employment later in life, as long as the earnings were subject to Medicare taxes.
Example 1 — 40 or more quarters (most people). If you worked in Medicare-covered employment for 10 or more years, you've already paid into the system through payroll taxes. Your Part A premium in 2026 is $0 per month. You've earned it. This applies to the vast majority of people turning 65 — according to Social Security data, roughly 99% of Medicare beneficiaries qualify for premium-free Part A.
Even if you personally don't have 40 quarters, you may qualify through your spouse's record. If your spouse (current, divorced after 10+ years of marriage, or deceased) has 40 quarters, you can get premium-free Part A based on their work history.
Example 2 — 30 to 39 quarters. Say you have 35 quarters of Medicare-covered work — maybe you worked part-time for several years, had a long gap in employment, or worked in a non-covered job early in your career. In 2026, your Part A premium is $311 per month, which works out to $3,732 per year. You'll pay this every month you have Part A without having earned the full 40 quarters. Over five years, that's $18,660 just for the coverage, before any hospital costs.
If you're in this situation and you're still working, it's worth checking how many quarters you still need to reach 40. You may be closer than you think. Your Social Security statement (available at ssa.gov) shows your quarter count.
Example 3 — Fewer than 30 quarters. If you have 15 quarters of covered work — maybe you came to the U.S. later in life, spent most of your career overseas, or worked primarily in jobs not subject to Medicare taxes — your Part A premium in 2026 is $565 per month, or $6,780 per year. That's a substantial cost on top of everything else Medicare involves. For comparison, a typical Medigap Plan G premium is about $165.85/month — roughly $400 less per month than what you'd pay for Part A alone with very limited work history.
If you're in this situation, it's worth considering whether enrolling in Part A makes financial sense without other Medicare coverage, or whether a different health insurance approach (such as marketplace coverage or delaying Medicare enrollment while continuing employer coverage) might be more cost-effective.
Whether or not you pay a premium, the Part A deductible and coinsurance apply whenever you're actually hospitalized. These are per-benefit-period costs, not per-year — meaning they can reset if you've been out of the hospital for 60 consecutive days.
If you have Original Medicare without Medigap, these costs are entirely your responsibility. Medigap Plan G covers the hospital deductible, the days 61–90 coinsurance, the lifetime reserve daily coinsurance, and the SNF coinsurance — which is a big reason people buy it.
| Scenario | Input | Result |
|---|---|---|
| 40+ quarters of covered work | Worked in Medicare-covered employment for 10+ years | $0/mo premium — Part A is free |
| 30–39 quarters (e.g., 35 quarters) | Worked ~8.75 years in covered employment | $311/mo — $3,732/yr for Part A coverage |
| Fewer than 30 quarters (e.g., 15 quarters) | Limited U.S. work history or non-covered employment | $565/mo — $6,780/yr for Part A coverage |
| 5-day hospital stay, no Medigap, premium-free Part A | Inpatient admission, days 1–5 | $1,736 Part A deductible — all of it owed for the full benefit period |
| Decision area | Tool | What it answers |
|---|---|---|
| Enrollment | Initial Enrollment Period Calculator | When your 7-month Medicare eligibility window begins and ends based on your 65th birthday |
| Enrollment | When Should I Sign Up for Medicare? | The best time to enroll based on your work status, other coverage, and age |
| Enrollment | Special Enrollment Period Checker | Whether a life event qualifies you for enrollment outside the standard windows |
| Enrollment | Late Enrollment Penalty Checker | How much extra you'll pay monthly if you missed your enrollment window |
| Enrollment | Part B Penalty Calculator | The exact 10%-per-year premium increase for delayed Part B enrollment |
| Enrollment | Part D Penalty Calculator | The 1%-per-month premium increase for gaps in creditable drug coverage |
| Costs | Cost Scenario Planner | Estimated annual spending across plan types at different health utilization levels |
| Costs | Advantage vs. Medigap Cost Comparison | True cost difference between Medicare Advantage and Original Medicare with Medigap |
| Costs | IRMAA Calculator | Whether your income triggers higher Part B and Part D premiums |
| Costs | Part A Premium Estimator | Your monthly Part A premium based on work history and quarters of coverage |
| Costs | M3P Calculator | How the Medicare Prescription Payment Plan smooths your drug costs into monthly payments |
| Coverage | Doctor & Drug Assessment | Whether your providers and prescriptions are covered by a specific plan |
| Coverage | Part D Shopping Tool | Which Part D plan has the lowest total annual cost for your specific medications |
| Coverage | Travel & Network Risk Assessment | How your coverage works outside your home area and which plan types travel best |
| Employer/COBRA | COBRA vs. Medicare | Why COBRA can trigger permanent Medicare penalties and how costs compare |
| Employer/COBRA | Employer Coverage vs. Medicare | Whether your employer plan or Medicare is primary and when to transition |
| Employer/COBRA | HSA & Medicare Compatibility | How Medicare enrollment affects HSA eligibility and what to do before enrolling |
| Planning | Caregiver Readiness Checklist | Whether you have everything in place to help a loved one with Medicare decisions |
| Planning | Document Gatherer | Which documents you need to have ready before enrolling or changing plans |
| Planning | Medigap Fit Assessment | Whether Medigap or Medicare Advantage is the better fit for how you use healthcare |
| Planning | Medigap Open Enrollment Window | Whether you're inside your one-time guaranteed issue window for Medigap |
| Planning | Medicare Savings Program Eligibility | Whether your income qualifies you for help paying Medicare premiums and cost-sharing |
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