Medicare Premium Calculator 2026: Your Exact Monthly Cost
Figures last verified against official sources in August 2026.
Quick Answer
In 2026, the standard Medicare Part B monthly premium is $202.90. Medicare Part A is $0/month for individuals with 40 or more Social Security work quarters. Beneficiaries with 2-year prior MAGI above $109,000 (single) or $218,000 (married filing jointly) pay an additional IRMAA surcharge ranging from $81.20 to $486.90 per month on Part B.
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).
We noticed that budgeting for Medicare is confusing because Part A costs depend on your lifelong Social Security work quarters, while Part B costs depend on tax returns from two years ago. We built this free tool because seniors deserve a fast, clear calculation of their exact monthly Medicare bill without insurance broker spam, sales calls, or account signups.
- Adults turning 65 planning their retirement budget and calculating their exact monthly Medicare premium bill.
- Seniors wanting to check if their recent income level triggers an IRMAA (Income Related Monthly Adjustment Amount) surcharge.
- Individuals with fewer than 40 Social Security work quarters verifying their Part A monthly cost tier.
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How to Use This Tool — Step by Step
- Step 1 — Select your Social Security work quarters. Indicate how many Social Security work quarters you or your spouse accumulated. You can log into your personal my Social Security account to view your official quarters statement. 40 quarters (10 years) yields premium-free Part A.
- Step 2 — Select your tax filing status. Choose your filing status from your tax return two years prior (2024 return for 2026 premiums). Social Security uses this status to apply the correct IRMAA income brackets.
- Step 3 — Enter your Modified Adjusted Gross Income (MAGI). Type your 2024 MAGI (IRS Form 1040 AGI plus tax-exempt interest). You can find this on Line 11 of your 2024 Form 1040.
- Step 4 — Click "Calculate My Medicare Premium." The tool instantly produces your complete monthly cost breakdown, showing Part A, Part B base rate, and any IRMAA surcharges.
💡 Pro Tip — Appeal IRMAA Surcharges After Retirement
If your 2024 tax income was high because you were still working, but you retired or reduced work hours in 2025 or 2026, you do NOT have to pay the higher IRMAA rate! File Form SSA-44 (Medicare Income-Related Monthly Adjustment Amount — Life-Changing Event) with Social Security to lower your premium immediately. Download our complete step-by-step guide at our IRMAA appeal wizard tool.
Real-Life Examples — How Premium Calculations Work in Practice
Arthur worked 42 quarters as a postal worker; Martha worked 40 quarters as a teacher. Their joint 2024 MAGI was $140,000.
| Category | Arthur | Martha |
|---|---|---|
| Part A Premium (40+ Quarters) | $0.00 | $0.00 |
| Part B Base Premium (2026) | $202.90 | $202.90 |
| IRMAA Surcharge (MAGI < $218,000 Joint) | $0.00 | $0.00 |
Arthur and Martha each pay $202.90 per month for Medicare Part B ($405.80 combined monthly bill), automatically deducted from their Social Security checks.
They verified that their joint income fell below the $218,000 IRMAA threshold, so no income surcharges applied.
Eleanor filed single in 2024 with a MAGI of $145,000 prior to retiring in late 2025.
| Input | Value |
|---|---|
| Part A Quarters (40+) | $0.00 |
| Part B Base Premium | $202.90 |
| Tier 2 IRMAA Part B Surcharge ($137k–$171k Single) | $202.90 |
Eleanor's initial Part B bill is $405.80 per month ($202.90 base + $202.90 IRMAA).
Because Eleanor retired in late 2025, she filed Form SSA-44 for a work reduction life-changing event, reducing her premium back to the $202.90 base rate.
These are representative examples based on official 2026 CMS rates. Individual premiums vary based on actual tax filings and Social Security quarter records. Always verify your official determination with the Social Security Administration.
Common Mistakes and How to Avoid Them
Assuming a One-Time Income Spike (Roth Conversion, House Sale) Won't Affect Medicare
A single year of high income — such as a Roth IRA conversion, capital gains from selling a home, or taking a large 401(k) withdrawal — raises your MAGI two years later, triggering a temporary 1-year IRMAA surcharge.
The fix is to plan major financial transactions in years prior to age 63 or consult a financial planner. Read official rules at Social Security Medicare premiums guide.
Failing to File Form SSA-44 After Retirement
Social Security automatically looks at your 2-year-old tax return. If you retired since then, they will overcharge you based on your old salary unless you notify them.
The fix is to submit SSA Form SSA-44 as soon as your work status changes. Access the form directly at SSA Form SSA-44 Official PDF or use our IRMAA appeal walkthrough tool.
Not Counting a Spouse's Work Quarters for Part A
Seniors who did not work 40 quarters often mistakenly pay $311 or $565 monthly for Part A, unaware they qualify for $0 Part A based on their spouse's (or deceased spouse's) 40 work quarters.
The fix is to contact Social Security to claim Part A entitlement under your spouse's work record. Check details at ssa.gov Medicare services.
Official Government Sources Used in This Tool
| Source Name | What We Used It For | Direct Link |
|---|---|---|
| CMS 2026 Medicare Parts A & B Premiums and Deductibles Fact Sheet | Official base Part B rate ($202.90) and Part A quarter cost thresholds ($311 & $565) | CMS 2026 Medicare Fact Sheet |
| Social Security Administration — Medicare Premiums & IRMAA Brackets | Official 2026 IRMAA income tier thresholds and surcharge rates | SSA Official Medicare Premiums |
| SSA Form SSA-44 (Life-Changing Event Appeal) | Official form and guidelines for appealing Medicare income surcharges | SSA-44 Appeal Form |
Seniors Audit is an independent educational platform. 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.
Frequently Asked Questions
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 whose Modified Adjusted Gross Income (MAGI) from two years prior (2024) was at or below $109,000 for single tax filers or $218,000 for married couples filing jointly.
Who qualifies for premium-free Medicare Part A?
You qualify for premium-free Medicare Part A (Hospital Insurance) if you or your spouse worked and paid Medicare payroll taxes for at least 40 quarters (10 years) in covered employment. If you have 30–39 quarters, Part A costs $311 per month in 2026. If you have fewer than 30 quarters, Part A costs $565 per month.
How does income affect my Medicare Part B monthly premium?
Social Security uses your Modified Adjusted Gross Income (MAGI) from your tax return two years prior (2024 taxes determine 2026 premiums) to place you in an IRMAA (Income Related Monthly Adjustment Amount) bracket. In 2026, IRMAA surcharges add between $81.20 and $443.90 per month to your base Part B premium of $202.90.
How is my Medicare Part B premium deducted from Social Security?
If you are currently receiving Social Security benefits, Railroad Retirement benefits, or Civil Service Annuity benefits, your monthly Medicare Part B premium (plus any IRMAA surcharge) is automatically deducted from your monthly benefit check. If you do not yet receive Social Security, CMS sends you a quarterly invoice via Medicare Easy Pay or paper bill.
What is the "Hold Harmless" rule for Medicare Part B premiums?
The statutory Hold Harmless provision 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 income surcharge, if you are newly enrolled in Part B, or if state Medicaid pays your Part B premium.
What tax return line determines my Medicare IRMAA calculation?
Social Security calculates Medicare MAGI using your IRS Form 1040 Adjusted Gross Income (AGI) plus tax-exempt interest income (Line 2a). For 2026 premiums, Social Security pulls this data from your 2024 tax return filed with the Internal Revenue Service (IRS).
How can I appeal a high Medicare Part B income surcharge if my income dropped?
If your income dropped significantly due to a qualifying life-changing event (such as retirement, work reduction, marriage, divorce, or death of a spouse), you can appeal your IRMAA tier by submitting SSA Form SSA-44 to the Social Security Administration along with documentation of your reduced income.
Does Medigap or Medicare Advantage pay my Medicare Part B premium?
No. Neither Medigap nor Medicare Advantage pays your Part B premium. Even if you choose a $0-premium Medicare Advantage plan, you are still legally required to pay your monthly Medicare Part B premium of $202.90 (plus any IRMAA surcharge) every month.
Important Terminologies & Abbreviations Explained
Covers inpatient hospital care, skilled nursing facility stays, hospice, and home health care. Premium-free for most seniors with 40+ work quarters.
Covers doctor visits, outpatient services, preventive care, and medical equipment. Base monthly premium is $202.90 in 2026.
Your tax return Adjusted Gross Income plus tax-exempt interest income. Used by Social Security to calculate IRMAA surcharges.
A higher monthly premium surcharge charged to Medicare beneficiaries with higher incomes based on tax returns from two years prior.
Credit units earned by paying Medicare payroll taxes. 40 quarters (10 years of work) entitles you to $0 Part A premiums.
The federal government agency responsible for determining Medicare eligibility, calculating IRMAA, and deducting premiums from checks.
Other Free Tools You May Find Useful
For a full understanding of how Medicare premiums, deductibles, and IRMAA surcharges work, visit our Medicare education hub — and read our in-depth guide on Medicare costs, deductibles, and late enrollment penalties. If your income triggers a surcharge, estimate your exact tier with our Medicare IRMAA calculator. If your income dropped recently, use our IRMAA appeal letter generator. On a fixed income? Check whether your state will pay your premium through our Medicare Savings Program estimator.
About This Educational Estimate: This tool is for educational purposes only. Seniors Audit uses the official formulas published by Centers for Medicare & Medicaid Services (CMS), but results are estimates based on the information you entered. Rules, rates, and eligibility thresholds change annually and vary by individual circumstance.
Always verify your specific result directly with Centers for Medicare & Medicaid Services (CMS) at 1-800-633-4227 or at www.medicare.gov before making enrollment, coverage, or financial decisions.
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. Last reviewed: August 2026.