The figures for the 2025 Income-Related Monthly Adjustment Amount (IRMAA) are officially set by the Centers for Medicare & Medicaid Services (CMS) and are based on your 2023 Modified Adjusted Gross Income (MAGI). The standard Part B premium for 2025 is $185.00 per month.Here are the 2025 IRMAA brackets for an individual who files a single tax return, including the total monthly Medicare Part B premium they would pay in each tier:2023 MAGI (Single Filer)Standard Premium + IRMAA SurchargeTotal Monthly Part B Premium$106,000 or less$185.00 + $0.00$185.00Above $106,000 up to $133,000$185.00 + $74.00$258.00Above $133,000 up to $167,000$185.00 + $185.00$370.00Above $167,000 up to $200,000$185.00 + $295.90$480.90Above $200,000 up to $500,000$185.00 + $406.90$591.90$500,000 or above$185.00 + $443.90$628.90 MAGI Calculation: Your MAGI is your Adjusted Gross Income (AGI) plus certain types of non-taxable income, most commonly tax-exempt interest (like from municipal bonds).Part D Surcharge: There is also a similar IRMAA surcharge applied to Medicare Part D (prescription drug) premiums, which is added to your specific plan premium. The surcharge tiers use the exact same MAGI brackets listed above.For additional information see:CMS Medicare Fact Sheet Medicare Premiums: SSA Fact Sheet Please feel free to reach out with any additional questions or concerns you may have and thank you for attending! Please have an amazing rest of your day! **Say "Thanks," by clicking the thumb icon at the bottom of the post.** Mark the post that answered your question by clicking on "Mark as Best Answer."

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HarpistS

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Question

Can you give info on projected IRMAA 2025 brackets for a single person, and what monthly Medicare payments would be for each bracket?

Forum|Forum|7 months ago
October 22, 2025
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Ask the Experts - Navigating - Oct 2025

Terri Lynn

Level 6

The figures for the 2025 Income-Related Monthly Adjustment Amount (IRMAA) are officially set by the Centers for Medicare & Medicaid Services (CMS) and are based on your 2023 Modified Adjusted Gross Income (MAGI). The standard Part B premium for 2025 is $185.00 per month.

Here are the 2025 IRMAA brackets for an individual who files a single tax return, including the total monthly Medicare Part B premium they would pay in each tier:

2023 MAGI (Single Filer)	Standard Premium + IRMAA Surcharge	Total Monthly Part B Premium
$106,000 or less	$185.00 + $0.00	$185.00
Above $106,000 up to $133,000	$185.00 + $74.00	$258.00
Above $133,000 up to $167,000	$185.00 + $185.00	$370.00
Above $167,000 up to $200,000	$185.00 + $295.90	$480.90
Above $200,000 up to $500,000	$185.00 + $406.90	$591.90
$500,000 or above	$185.00 + $443.90	$628.90

MAGI Calculation: Your MAGI is your Adjusted Gross Income (AGI) plus certain types of non-taxable income, most commonly tax-exempt interest (like from municipal bonds).
Part D Surcharge: There is also a similar IRMAA surcharge applied to Medicare Part D (prescription drug) premiums, which is added to your specific plan premium. The surcharge tiers use the exact same MAGI brackets listed above.

For additional information see:

CMS Medicare Fact Sheet
Medicare Premiums: SSA Fact Sheet

Please feel free to reach out with any additional questions or concerns you may have and

thank you for attending!

Please have an amazing rest of your day!

**Say "Thanks," by clicking the thumb icon at the bottom of the post.

** Mark the post that answered your question by clicking on "Mark as Best Answer."

Please feel free to reach out with any additional questions and . thank you so much for attending! . Please have an amazing rest of your day!Terri H.. **Say "Thanks," by clicking the thumb icon at the bottom of the post.** Mark the post that answered your question by clicking on "Mark as Best Answer.”.