Medicare Premium Calculator 2026: Your Total Monthly Cost
Figures last verified against official sources in July 2026.
Quick Answer
In 2026, the standard Medicare Part B monthly premium is $202.90. Medicare Part A is $0/month for anyone with 40+ work quarters. Higher earners with 2-year prior MAGI above $106,000 (single) or $212,000 (joint) pay an additional Part B IRMAA surcharge ranging from $81.20 to $443.90 per month.
Seniors budgeting for retirement often struggle to figure out their exact monthly Medicare bill because Part A cost depends on work history while Part B cost depends on tax returns from two years prior. We built this calculator to combine both formulas into one clear, instant monthly cost breakdown — without requiring signups or collecting personal data.
- Adults turning 65 who want to calculate their total monthly Medicare Part A and B premium bill for 2026.
- Retirees checking whether their tax-return income triggers an IRMAA surcharge on top of the $202.90 Part B base rate.
- Seniors with under 40 quarters of work history who need to calculate their paid Part A premium cost.
Medicare Part A & B Premium Calculator 2026
Calculate your exact total monthly Medicare premium, combining Part A work quarters and Part B income surcharges (IRMAA).
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How to Use This Calculator — Step by Step
- Select your work quarters. Choose 40+ quarters if you worked at least 10 years paying Medicare payroll taxes ($0 Part A). Otherwise, select 30–39 quarters ($278/mo) or under 30 quarters ($505/mo).
- Select your tax filing status. Choose Single, Joint, or Married Filing Separately based on your tax return from 2 years prior (2024 tax return for 2026 premiums).
- Enter your Modified Adjusted Gross Income (MAGI). Enter your AGI (Line 11 of Form 1040) plus any tax-exempt municipal bond interest (Line 2a).
- Click "Calculate Total Premium." The tool immediately displays your itemized monthly breakdown (Part A + Part B Base + IRMAA Surcharge) and annual total.
💡 Pro Tip
If your income dropped significantly due to retirement or work reduction after 2024, do not accept the IRMAA surcharge! File Form SSA-44 with Social Security to request an instant redetermination based on your lower current income. Download SSA-44 at ssa.gov/forms/ssa-44.pdf.
How 2026 Medicare Part A & B Premiums Are Structured
Medicare premium rules combine two separate federal standards: work history for Part A (hospital coverage) and tax-return income for Part B (doctor & outpatient coverage).
For 99% of seniors with 40 or more quarters of Medicare payroll tax contributions, Part A is $0/month. For Part B, the 2026 standard baseline premium is $202.90 per month. If your MAGI from 2 years prior exceeds $106,000 (single) or $212,000 (joint), Social Security adds an Income-Related Monthly Adjustment Amount (IRMAA) tier.
Real-Life Examples — Medicare Premium Calculations
George, 66 — Standard Base Premium Bracket
George retired last year with 40+ work quarters. His 2024 MAGI was $75,000 (single).
| Component | 2026 Cost |
| Part A (40+ Quarters) | $0.00 / month |
| Part B Base Premium | $202.90 / month |
| IRMAA Surcharge (Income < $106k) | $0.00 / month |
Result: George pays $202.90 / month ($2,434.80 / year).
Martha & Edward — Joint Filers in Tier 1 IRMAA
Martha and Edward filed jointly in 2024 with a MAGI of $240,000. Both have 40+ work quarters.
| Component per Person | 2026 Cost |
| Part A (40+ Quarters) | $0.00 / month |
| Part B Base Premium | $202.90 / month |
| Part B IRMAA (Tier 1 Joint) | +$81.20 / month |
Result: Each pays $284.10 / month ($3,409.20 / year per person). Household total: $568.20 / month.
Common Medicare Premium Calculation Mistakes
1. Using Current Year's Income Instead of 2-Year-Old Tax Return
Social Security automatically uses your federal tax return from TWO years prior (2024 return for 2026 premiums). Beneficiaries who retired recently are often shocked when charged an IRMAA surcharge based on their high pre-retirement salary.
The fix: If your income dropped due to retirement, file Form SSA-44 to request an IRMAA reduction. See official rules at ssa.gov IRMAA guidance.
2. Assuming Spousal Work Quarters Cannot Help You Get Free Part A
If you do not have 40 work quarters on your own record, you can qualify for premium-free Part A based on your current, deceased, or divorced spouse's work record (if married 10+ years), as long as your spouse is at least 62 or deceased.
The fix: Provide your spouse's Social Security number when enrolling to claim premium-free Part A based on their 40 quarters.
Official Government Sources Used in This Tool
| Source Name | What We Used It For | Direct Link |
|---|---|---|
| CMS 2026 Medicare Parts A & B Premiums Fact Sheet | Standard Part B premium ($202.90), Part A work-quarter rates ($0 / $278 / $505), and IRMAA tier tables | medicare.gov Part B Costs |
| Social Security Administration — Medicare IRMAA Rules | SSA procedure for determining MAGI using 2-year-prior IRS tax returns | ssa.gov IRMAA Page |
Seniors Audit is an independent educational platform. We are not affiliated with, endorsed by, or connected to CMS or the Social Security Administration. All calculations use official government rates and published rules.
Frequently Asked Questions About Medicare Premiums
How much is the standard Medicare Part B monthly premium in 2026?
The standard Medicare Part B monthly premium in 2026 is $202.90. This base rate is paid by all Medicare beneficiaries who have MAGI income below $106,000 (single) or $212,000 (married filing jointly). High earners pay an additional IRMAA surcharge on top of this base rate.
Who qualifies for premium-free Medicare Part A?
You qualify for premium-free Medicare Part A if you (or your spouse) worked and paid Medicare taxes for at least 40 quarters (10 years) in covered employment. If you have 30–39 quarters, Part A costs $278/month in 2026. If you have fewer than 30 quarters, Part A costs $505/month.
How does income affect my Medicare Part B premium?
Social Security uses your Modified Adjusted Gross Income (MAGI) from your tax return two years prior (e.g., 2024 taxes determine 2026 IRMAA) to set your Part B premium bracket. In 2026, IRMAA surcharges add between $81.20 and $443.90 per month to your standard $202.90 Part B premium.
How is Medicare Part B premium deducted from Social Security?
If you are currently receiving Social Security benefits, your monthly Medicare Part B premium (including any IRMAA surcharge) is automatically deducted from your monthly Social Security check before deposit. If you do not yet receive Social Security, CMS bills you quarterly via Medicare Easy Pay or paper invoice.
What is the "Hold Harmless" rule for Medicare Part B premiums?
The Hold Harmless provision in federal law prevents your net Social Security check from decreasing from one year to the next due to a Medicare Part B premium increase. However, this protection does NOT apply if you pay an IRMAA surcharge, are newly enrolled in Part B, or have your Part B premium paid by state Medicaid.
What tax return line is used for the Medicare income calculation?
Social Security calculates Medicare MAGI using IRS Form 1040 Line 11 (Adjusted Gross Income) plus Line 2a (tax-exempt interest income) plus any excluded foreign earned income.
How can I appeal a high Medicare Part B income surcharge?
If your income dropped significantly due to a qualifying life-changing event (marriage, divorce, death of spouse, work reduction, retirement, or loss of income-producing property), you can appeal by filing Form SSA-44 with Social Security.
Other Free Medicare Tools You May Find Useful
IRMAA Calculator (Multi-Year) →
See your full Part B and Part D IRMAA surcharges side-by-side by income tier.
Part B Penalty Calculator →
Calculate your permanent Part B late enrollment penalty if you delayed enrollment.
Medicare Savings Estimator →
Check if your state will pay your $202.90/mo Part B premium through QMB, SLMB, or QI.
About This Educational Estimate: This tool is for educational purposes only. Seniors Audit uses the official formulas published by the relevant government agency, but results are estimates based on the information you entered. Rules, rates, and eligibility thresholds change annually and vary by individual circumstance.
If you have Medicare questions, a free SHIP counselor in your state can review your specific situation at no cost — find yours at shiphelp.org.
Seniors Audit is independent and not affiliated with any government agency or insurance company. We are not affiliated with, endorsed by, or connected to any government agency, insurance company, or financial services firm. All calculations use the official formulas and current figures published by the agencies listed above. We do not receive payment for referrals, leads, or any action taken by visitors to this site.