How to Use Medicare IRMAA Calculator (Part B and Part D Surcharge) Online for Free: Step-by-Step Guide
Find your Medicare IRMAA tier and the extra Part B and Part D premium for your income. Free, private and no sign-up.
How to Use Medicare IRMAA Calculator (Part B and Part D Surcharge) Online for Free
Find your Medicare IRMAA tier and the extra Part B and Part D premium for your income. This guide shows what Medicare IRMAA Calculator (Part B and Part D Surcharge) does, how to use it step by step, what to watch out for, and which related tools on shobfree.com can help next.
Quick answer
Open Medicare IRMAA Calculator (Part B and Part D Surcharge), type your numbers or pick the options you need, check the result that appears, and then use it. Medicare IRMAA Calculator (Part B and Part D Surcharge) is free, needs no account and runs in your browser, so what you type or add stays on your device.
What Medicare IRMAA Calculator (Part B and Part D Surcharge) does
- Find your Medicare IRMAA tier and the extra Part B and Part D premium for your income.
- Enter your modified adjusted gross income from two years ago (the year Medicare looks at), your filing status and how many people are on Medicare.
- The tool shows your tier, the monthly Part B and Part D amounts, the extra cost for the year and how far you are from the next tier.
Enter your modified adjusted gross income from two years ago (the year Medicare looks at), your filing status and how many people are on Medicare. The tool shows your tier, the monthly Part B and Part D amounts, the extra cost for the year and how far you are from the next tier.
How to use Medicare IRMAA Calculator (Part B and Part D Surcharge), step by step
- Fill in the boxes. Type your numbers or pick the options you need.
- See the result. The answer updates right away as you change a value.
- Use it. Copy the result or note it down. Nothing is sent anywhere.
These three steps are the same on a phone and on a computer. If something looks wrong, change one setting and look at the result again; Medicare IRMAA Calculator (Part B and Part D Surcharge) updates as you go.
A worked example
A single person with $150,000 of income two years earlier in 2026 is in tier 3: Part B is $405.80 a month and the Part D surcharge $37.50. The extra cost is $2,435 for Part B plus $450 for Part D, $2,885 a year, and $21,000 more income would move them to tier 4.
Tips for a good result
- Treat the result as an estimate and confirm important figures with the official source.
- Run a best case and a worst case, then keep both numbers for your planning.
- Change one value at a time, so you can see which input moves the result.
- Double-check the units and the currency or period before you trust a number.
Who is this for?
Medicare IRMAA Calculator (Part B and Part D Surcharge) is useful for anyone who needs find your Medicare IRMAA tier and the extra Part B and Part D premium for your income without installing software or paying for a subscription. Students, freelancers, office staff and small-business owners use tools like this for quick, one-off jobs where a full application would be too much.
Frequently asked questions
Which year's income is used?
The tax return from two years before, or one year before if it is not available.
Is Part D included?
Yes, the Part D surcharge is listed. It is paid with your plan premium, not the plan itself.
Can I lower it?
Appeal after a qualifying life event, or plan Roth conversions and gains in earlier years.
Does the surcharge count for both spouses?
Yes. Each person on Medicare pays it, so choose '2' for a couple.
Do I need to create an account to use Medicare IRMAA Calculator (Part B and Part D Surcharge)?
No. Open the page and start. There is no sign-up, no email and no payment.
Can I use Medicare IRMAA Calculator (Part B and Part D Surcharge) on my phone?
Yes. The page adapts to small screens, and everything runs in your phone's browser, so the same steps work on a laptop or a phone.
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Privacy
Medicare IRMAA Calculator (Part B and Part D Surcharge) works inside your browser. Your files, text and numbers are not uploaded to a server, and there is nothing to delete afterwards.
