How To Calculate Modified Adjusted Gross Income For IRMAA?

Calculating your Modified Adjusted Gross Income (MAGI) for IRMAA is crucial for understanding your Medicare premiums. Income-partners.net helps you navigate this process, ensuring you’re well-informed about potential income-related adjustments to your Medicare costs and strategies to collaborate on revenue growth. This article explains how to calculate your MAGI, understand its impact on your Medicare premiums, and explore opportunities to optimize your financial situation through strategic income partnerships.

1. What is Modified Adjusted Gross Income (MAGI) and Why Does it Matter for IRMAA?

Your Modified Adjusted Gross Income (MAGI) is a crucial figure that determines whether you’ll pay higher premiums for Medicare Part B (medical insurance) and Medicare prescription drug coverage. In essence, MAGI is your Adjusted Gross Income (AGI) with certain deductions added back in.

To determine if you have to pay higher premiums, Social Security uses the most recent federal tax return the IRS provides to them. They calculate adjustments based on your MAGI, which is your total adjusted gross income and tax-exempt interest income. If your MAGI exceeds specific income thresholds, you’ll be subject to the Income-Related Monthly Adjustment Amount (IRMAA), leading to increased Medicare premiums.

1.1. Defining Modified Adjusted Gross Income (MAGI)

MAGI isn’t just your regular income; it’s a calculation used by the IRS and Social Security Administration to determine your eligibility for certain benefits and programs, including Medicare premium adjustments. According to the IRS, MAGI starts with your Adjusted Gross Income (AGI).

1.2. Key Components of MAGI Calculation

Adjusted Gross Income (AGI): This is your gross income (total income before deductions) minus certain deductions like student loan interest, IRA contributions, and alimony payments.
Adding Back Deductions: To arrive at MAGI, you add back certain items to your AGI, such as:
- Tax-exempt interest income
- Deductions for IRA contributions
- Tuition and fees deductions
- Rental losses

1.3. Why MAGI Matters for IRMAA

The Social Security Administration (SSA) uses your MAGI to determine if you owe an Income-Related Monthly Adjustment Amount (IRMAA) for your Medicare Part B and Part D premiums. IRMAA is an extra charge added to your monthly Medicare premium if your income exceeds certain levels.

**1.4. IRMAA Thresholds for 2025

IRMAA thresholds are based on your MAGI from two years prior. For example, your 2025 Medicare premiums will be determined by your 2023 MAGI. Here’s a breakdown of the 2025 IRMAA thresholds:

For Individuals:

MAGI	Part B Monthly Premium	Part D Monthly Premium
$106,000 or less	$185.00	Standard Plan Premium
Above $106,000 up to $133,000	$259.00	Standard Plan Premium + $13.70
Above $133,000 up to $167,000	$370.00	Standard Plan Premium + $35.30
Above $167,000 up to $200,000	$480.90	Standard Plan Premium + $57.00
Above $200,000 and less than $500,000	$591.90	Standard Plan Premium + $78.60
$500,000 or more	$628.90	Standard Plan Premium + $85.80

For Married Couples Filing Jointly:

MAGI	Part B Monthly Premium	Part D Monthly Premium
$212,000 or less	$185.00	Standard Plan Premium
Above $212,000 up to $266,000	$259.00	Standard Plan Premium + $13.70
Above $266,000 up to $334,000	$370.00	Standard Plan Premium + $35.30
Above $334,000 up to $400,000	$480.90	Standard Plan Premium + $57.00
Above $400,000 and less than $750,000	$591.90	Standard Plan Premium + $78.60
$750,000 or more	$628.90	Standard Plan Premium + $85.80

For Married Individuals Filing Separately:

MAGI	Part B Monthly Premium	Part D Monthly Premium
$106,000 or less	$185.00	Standard Plan Premium
Above $106,000 up to $394,000	$591.90	Standard Plan Premium + $78.60
$394,000 or more	$628.90	Standard Plan Premium + $85.80

Note: Your plan premium is the base cost before any IRMAA surcharges are applied.

These thresholds are subject to change annually, so it’s essential to stay updated with the latest information from the Social Security Administration.

1.5. Real-World Example

Let’s say John is single and his AGI is $120,000. He also has $5,000 in tax-exempt interest income. His MAGI is:

$120,000 (AGI) + $5,000 (Tax-Exempt Interest) = $125,000 (MAGI)

Based on the 2025 IRMAA thresholds, John will pay a higher premium for Medicare Part B and Part D due to his MAGI falling into the second income bracket.

1.6. Understanding the Impact

Knowing your MAGI allows you to anticipate potential increases in your Medicare premiums. By understanding how your income affects your healthcare costs, you can make informed financial decisions and explore strategies to manage your MAGI.

2. Step-by-Step Guide to Calculating Your MAGI for IRMAA

To accurately determine your Modified Adjusted Gross Income (MAGI) for IRMAA, follow these detailed steps.

2.1. Gather Necessary Documents

Start by collecting all relevant tax documents, which typically include:

Form 1040: U.S. Individual Income Tax Return
Form 1099-INT: For reporting interest income
Form 1099-DIV: For reporting dividend income
Form 1099-R: For reporting distributions from pensions, annuities, retirement or profit-sharing plans, IRAs, insurance contracts, etc.
Schedules 1-3: Additional schedules for various deductions and income adjustments

2.2. Determine Your Adjusted Gross Income (AGI)

Your AGI is the foundation of your MAGI calculation. Locate your AGI on line 11 of Form 1040. This figure represents your gross income minus specific deductions.

2.3. Identify Potential Add-Backs

Review your tax documents to identify any items that need to be added back to your AGI to calculate your MAGI. Common add-backs include:

Tax-Exempt Interest Income: Found on line 2a of Form 1040.
Deductions for IRA Contributions: Refer to Schedule 1 (Form 1040), line 20.
Student Loan Interest Deduction: Found on Schedule 1 (Form 1040), line 21.
Tuition and Fees Deduction: No longer available after 2020, but may be relevant for prior tax years.
Rental Losses: Passive income losses that are typically disallowed are added back.

2.4. Calculate Your MAGI

Add the identified add-backs to your AGI:

MAGI = AGI + Tax-Exempt Interest + Other Add-Backs

For example, if your AGI is $80,000 and you have $2,000 in tax-exempt interest, your MAGI would be:

MAGI = $80,000 + $2,000 = $82,000

2.5. Consult the IRMAA Thresholds

Refer to the latest IRMAA thresholds provided by the Social Security Administration (SSA). These thresholds are updated annually and determine the premium adjustments based on your MAGI.

2.6. Determine Your IRMAA Bracket

Compare your calculated MAGI to the IRMAA thresholds to determine which income bracket you fall into. Each bracket corresponds to a specific premium adjustment amount for Medicare Part B and Part D.

2.7. Understand the Implications

Once you know your IRMAA bracket, you can estimate the additional costs you will incur for your Medicare premiums. This allows you to plan your finances accordingly and explore potential strategies to manage your MAGI.

2.8. Example Calculation

Let’s consider Sarah, a single filer with the following information from her 2023 tax return:

Adjusted Gross Income (AGI): $120,000
Tax-Exempt Interest Income: $3,000
IRA Contributions: $6,000 (deducted from gross income to arrive at AGI)

Calculate Sarah’s MAGI:

MAGI = AGI + Tax-Exempt Interest
MAGI = $120,000 + $3,000
MAGI = $123,000

Based on the 2025 IRMAA thresholds for single filers, Sarah’s MAGI of $123,000 places her in the second income bracket. She will pay a higher premium for both Medicare Part B and Part D.

2.9. Utilizing Online Tools

Several online calculators and tools can help simplify the MAGI calculation process. These tools often provide step-by-step guidance and incorporate the latest IRMAA thresholds. Be sure to use reputable sources and double-check the results for accuracy.

2.10. Seeking Professional Advice

If you find the MAGI calculation process confusing or need personalized advice, consult with a qualified tax professional or financial advisor. They can help you accurately calculate your MAGI, understand the implications for your Medicare premiums, and develop strategies to optimize your financial situation. Income-partners.net can also provide valuable insights and resources for navigating these complexities.

By following this step-by-step guide, you can confidently calculate your MAGI and understand its impact on your Medicare premiums, enabling you to make informed financial decisions.

3. Common Add-Backs to AGI When Calculating MAGI

When calculating your Modified Adjusted Gross Income (MAGI) for IRMAA, it’s essential to know which items to add back to your Adjusted Gross Income (AGI). These add-backs can significantly impact your MAGI and, consequently, your Medicare premiums.

3.1. Tax-Exempt Interest Income

Tax-exempt interest income is one of the most common add-backs to AGI when calculating MAGI. This includes interest earned from municipal bonds and other tax-exempt investments. Even though this income isn’t taxed at the federal level, it is included in your MAGI calculation.

Example: If you earned $5,000 in tax-exempt interest, this amount must be added back to your AGI to determine your MAGI.

3.2. Foreign Earned Income Exclusion

If you live and work abroad, you might be eligible for the foreign earned income exclusion, which allows you to exclude a certain amount of your foreign-earned income from your U.S. taxes. However, this exclusion is added back to your AGI when calculating MAGI.

Example: If you excluded $10,000 of foreign earned income, this amount must be added back to your AGI to calculate your MAGI.

3.3. Deduction for One-Half of Self-Employment Tax

Self-employed individuals can deduct one-half of their self-employment tax from their gross income. However, this deduction is added back when calculating MAGI.

Example: If you deducted $3,000 for one-half of your self-employment tax, this amount must be added back to your AGI.

3.4. IRA Deductions

Traditional IRA contributions are often tax-deductible, reducing your AGI. However, these deductions are added back to your AGI when calculating MAGI.

Example: If you deducted $6,000 for IRA contributions, this amount must be added back to your AGI.

3.5. Student Loan Interest Deduction

The student loan interest deduction allows you to deduct the interest you paid on qualified student loans. This deduction reduces your AGI but is added back to calculate MAGI.

Example: If you deducted $2,500 for student loan interest, this amount must be added back to your AGI.

3.6. Tuition and Fees Deduction

Although the tuition and fees deduction has expired, it may still be relevant for prior tax years. If you claimed this deduction, it must be added back to your AGI when calculating MAGI for those years.

Example: If you deducted $4,000 for tuition and fees, this amount must be added back to your AGI.

3.7. Passive Activity Losses

Passive activity losses, such as those from rental properties, can reduce your AGI. However, these losses are often added back when calculating MAGI.

Example: If you had passive activity losses of $8,000 that reduced your AGI, this amount must be added back to determine your MAGI.

3.8. Rental Real Estate Losses

If you own rental properties, you may have deductions for expenses such as mortgage interest, property taxes, and depreciation. However, these deductions are added back to your AGI when calculating MAGI.

Example: If you had $7,000 in rental real estate losses, this amount must be added back to your AGI.

3.9. Capital Loss Carryovers

Capital losses can be used to offset capital gains, reducing your AGI. However, these losses are added back when calculating MAGI.

Example: If you had $9,000 in capital loss carryovers, this amount must be added back to your AGI.

3.10. Alimony Paid

If you paid alimony under a divorce or separation agreement executed before 2019, these payments are deductible. However, they are added back to your AGI when calculating MAGI.

Example: If you paid $11,000 in alimony, this amount must be added back to your AGI.

4. Strategies to Manage Your MAGI and Reduce IRMAA

Managing your Modified Adjusted Gross Income (MAGI) is crucial for controlling your Medicare premiums and minimizing the impact of the Income-Related Monthly Adjustment Amount (IRMAA). Here are several strategies you can implement to effectively manage your MAGI:

4.1. Maximize Retirement Contributions

Contributing to tax-deferred retirement accounts like 401(k)s and traditional IRAs can significantly reduce your AGI, thereby lowering your MAGI. These contributions are deducted from your gross income, providing an immediate tax benefit and reducing your overall income for IRMAA calculation.

Strategy: Aim to contribute the maximum allowable amount to your retirement accounts each year. For example, in 2024, the 401(k) contribution limit is $23,000 (or $30,500 for those age 50 and over), and the IRA contribution limit is $7,000 (or $8,000 for those age 50 and over).

4.2. Health Savings Account (HSA) Contributions

If you have a high-deductible health plan (HDHP), contributing to a Health Savings Account (HSA) can also lower your MAGI. HSA contributions are tax-deductible, reducing your AGI and providing a tax-advantaged way to save for healthcare expenses.

Strategy: Maximize your HSA contributions each year. In 2024, the HSA contribution limit is $4,150 for individuals and $8,300 for families, with an additional $1,000 catch-up contribution for those age 55 and over.

4.3. Tax-Loss Harvesting

Tax-loss harvesting involves selling investments that have decreased in value to offset capital gains. By strategically realizing losses, you can reduce your overall taxable income and lower your AGI.

Strategy: Regularly review your investment portfolio and identify opportunities for tax-loss harvesting. Be mindful of the wash-sale rule, which prevents you from immediately repurchasing the same or substantially identical securities within 30 days.

4.4. Roth Conversions

While Roth conversions do not provide immediate tax benefits, they can be a valuable long-term strategy for managing your MAGI. Converting traditional IRA or 401(k) assets to a Roth IRA increases your taxable income in the year of the conversion but allows for tax-free withdrawals in retirement.

Strategy: Carefully plan Roth conversions during lower-income years to minimize the tax impact. Consider converting smaller amounts over several years to avoid pushing yourself into a higher IRMAA bracket.

4.5. Charitable Contributions

Donating to qualified charitable organizations can reduce your taxable income through itemized deductions. By donating cash, securities, or other assets, you can lower your AGI and potentially reduce your IRMAA.

Strategy: Consider bunching charitable contributions into a single year to exceed the standard deduction threshold and maximize your tax savings. You can also donate appreciated securities to avoid capital gains taxes.

4.6. Strategic Income Planning

Carefully plan the timing of income recognition to avoid spikes in your MAGI. For example, delaying bonuses, deferring income, or spreading out large capital gains over multiple years can help you stay below the IRMAA thresholds.

Strategy: Work with a financial advisor to develop a strategic income plan that aligns with your financial goals and minimizes your tax liabilities. This may involve strategies such as tax-advantaged investments and income deferral techniques.

4.7. Minimize Tax-Exempt Interest

While tax-exempt interest is generally beneficial, it is added back to your AGI when calculating MAGI. If you are close to an IRMAA threshold, consider minimizing your holdings of tax-exempt investments.

Strategy: Evaluate your investment portfolio and consider reallocating assets to investments that do not generate tax-exempt interest, such as taxable bonds or dividend-paying stocks held in taxable accounts.

4.8. Claiming Life-Changing Event

The Social Security Administration (SSA) allows you to request a reduction in your IRMAA if you have experienced a life-changing event that has significantly reduced your income. Qualifying events include:

Marriage
Divorce
Death of a spouse
Work stoppage
Reduction in work hours
Loss of income-producing property
Employer settlement payment

Strategy: If you experience a qualifying life-changing event, notify the SSA and provide documentation to support your claim. This can result in a recalculation of your IRMAA based on your current income.

4.9. Utilizing Partnerships

Engaging in strategic partnerships can provide opportunities to manage your MAGI through shared income and expenses. By collaborating with other businesses or individuals, you can potentially reduce your individual income and lower your MAGI. income-partners.net offers resources and connections to explore such partnerships.

Strategy: Explore opportunities to partner with other businesses or individuals to share income and expenses. This can help you reduce your individual income and lower your MAGI.

4.10. Seeking Professional Advice

Navigating the complexities of MAGI and IRMAA requires careful planning and expertise. Consulting with a qualified tax professional or financial advisor can provide personalized guidance and help you develop strategies to effectively manage your MAGI.

Strategy: Schedule regular meetings with your tax advisor or financial planner to review your financial situation and identify opportunities to optimize your MAGI and minimize your Medicare premiums.

5. How Life-Changing Events Can Impact Your IRMAA

Life-changing events can significantly impact your Modified Adjusted Gross Income (MAGI) and, consequently, your Income-Related Monthly Adjustment Amount (IRMAA) for Medicare premiums. Understanding how these events affect your IRMAA is crucial for managing your healthcare costs.

5.1. Qualifying Life-Changing Events

The Social Security Administration (SSA) recognizes several life-changing events that may warrant a recalculation of your IRMAA. These events typically involve a significant reduction in your income and include:

Marriage: Becoming married can change your filing status and potentially affect your IRMAA.
Divorce: A divorce can significantly reduce your household income and may lead to a lower IRMAA.
Death of a Spouse: The death of a spouse can impact your filing status and income, potentially reducing your IRMAA.
Work Stoppage: Losing your job or experiencing a significant reduction in work hours can lower your income and lead to a lower IRMAA.
Reduction in Work Hours: If you reduce your work hours, your income may decrease, making you eligible for a lower IRMAA.
Loss of Income-Producing Property: Losing property that generates income, such as rental properties or investments, can reduce your income and potentially lower your IRMAA.
Employer Settlement Payment: Receiving a settlement payment from an employer due to closure, bankruptcy, or reorganization can temporarily increase your income but may also qualify you for a future reduction in IRMAA.

5.2. Reporting a Life-Changing Event to the SSA

If you experience a qualifying life-changing event, it is essential to report it to the SSA as soon as possible. You can do this by:

Contacting the SSA: Call the SSA’s toll-free number at 1-800-772-1213 (TTY 1-800-325-0778).
Visiting a Local Social Security Office: Schedule an appointment or visit your local Social Security office.
Completing Form SSA-44: Use Form SSA-44, “Medicare Income-Related Monthly Adjustment Amount – Life-Changing Event,” to report the event and request a reduction in your IRMAA.

5.3. Required Documentation

When reporting a life-changing event, you will need to provide documentation to support your claim. The specific documents required will vary depending on the nature of the event but may include:

Marriage Certificate: For reporting a marriage.
Divorce Decree: For reporting a divorce.
Death Certificate: For reporting the death of a spouse.
Letter from Employer: For reporting a work stoppage or reduction in work hours.
Financial Statements: For reporting the loss of income-producing property.
Settlement Agreement: For reporting an employer settlement payment.
Tax Returns: For providing evidence of your reduced income.

5.4. Recalculation of IRMAA

Once the SSA receives your report and supporting documentation, they will review your case and determine whether a recalculation of your IRMAA is warranted. If approved, your Medicare premiums will be adjusted based on your new income level.

5.5. Retroactive Adjustments

In some cases, the SSA may make retroactive adjustments to your IRMAA. This means that if you paid higher premiums based on an older income level, you may be eligible for a refund or credit.

5.6. Examples of Life-Changing Events and Their Impact

Divorce: Sarah was married and had a MAGI that placed her in a higher IRMAA bracket. After her divorce, her income decreased significantly. By reporting her divorce to the SSA and providing a copy of her divorce decree, Sarah was able to have her IRMAA recalculated based on her new, lower income.
Work Stoppage: John lost his job and experienced a significant reduction in income. He reported his work stoppage to the SSA and provided a letter from his former employer. As a result, his IRMAA was adjusted, and he paid lower Medicare premiums.
Death of a Spouse: Mary’s spouse passed away, resulting in a significant decrease in her household income. She reported the death to the SSA and provided a copy of the death certificate. Her IRMAA was recalculated, and she paid lower Medicare premiums.

5.7. Importance of Timely Reporting

Reporting life-changing events to the SSA in a timely manner is crucial for ensuring that your IRMAA is accurate and that you are not overpaying for your Medicare premiums. Delaying the report can result in missed opportunities for premium adjustments and potential refunds.

5.8. Utilizing SSA Resources

The SSA provides numerous resources to help you understand how life-changing events can impact your IRMAA and how to report these events. These resources include:

SSA Website: Visit the SSA website (ssa.gov) for detailed information on IRMAA and life-changing events.
Publications: Review SSA publications, such as the “Medicare & You” handbook, for guidance on Medicare premiums and IRMAA.
Toll-Free Number: Call the SSA’s toll-free number at 1-800-772-1213 (TTY 1-800-325-0778) for assistance.

5.9. Seeking Professional Guidance

Navigating the complexities of IRMAA and life-changing events can be challenging. Consulting with a qualified tax professional or financial advisor can provide personalized guidance and help you navigate the reporting process.

6. Appealing an IRMAA Determination: What You Need to Know

If you disagree with the Social Security Administration’s (SSA) determination of your Income-Related Monthly Adjustment Amount (IRMAA), you have the right to appeal. Understanding the appeals process is essential for ensuring that your Medicare premiums are accurate.

6.1. Grounds for Appealing an IRMAA Determination

You can appeal an IRMAA determination if you believe that the SSA has made an error in calculating your Modified Adjusted Gross Income (MAGI) or applying the IRMAA thresholds. Common reasons for appealing include:

Incorrect MAGI: If you believe that the MAGI used by the SSA is incorrect, you can appeal the determination. This may be due to errors in your tax return or incorrect information provided by the IRS.
Life-Changing Event: If you have experienced a life-changing event that significantly reduced your income, you can appeal the IRMAA determination.
Incorrect Information: If the SSA has used incorrect information about your income or filing status, you can appeal the determination.

6.2. Steps to File an Appeal

The appeals process typically involves the following steps:

Request for Reconsideration: The first step is to file a Request for Reconsideration. This involves completing Form SSA-561-U2, “Request for Reconsideration,” and submitting it to the SSA.
Provide Supporting Documentation: Include any documentation that supports your appeal, such as:
- Amended Tax Returns: If you have filed an amended tax return, include a copy with your appeal.
- Documentation of Life-Changing Event: If you have experienced a life-changing event, include documentation such as a marriage certificate, divorce decree, death certificate, or letter from your employer.
- Financial Statements: Include financial statements that support your claim of reduced income.
Submit Your Appeal: Submit your completed Form SSA-561-U2 and supporting documentation to your local Social Security office or mail it to the address provided on the form.
Review by the SSA: The SSA will review your appeal and supporting documentation and make a determination.
Hearing: If you disagree with the SSA’s determination, you have the right to request a hearing before an administrative law judge.
Appeals Council Review: If you disagree with the administrative law judge’s decision, you can request a review by the Appeals Council.
Federal Court Review: If you disagree with the Appeals Council’s decision, you can file a lawsuit in federal court.

6.3. Time Limits for Filing an Appeal

It is essential to file your appeal within the specified time limits. Generally, you must file a Request for Reconsideration within 60 days of the date of the initial IRMAA determination. Failure to file your appeal within the time limit may result in the denial of your appeal.

6.4. Utilizing Form SSA-561-U2

Form SSA-561-U2, “Request for Reconsideration,” is the official form used to file an appeal of an IRMAA determination. The form requires you to provide information about your income, filing status, and the reasons for your appeal. Be sure to complete the form accurately and include all required documentation.

6.5. Seeking Assistance from the SSA

If you need assistance with the appeals process, you can contact the SSA for help. You can call the SSA’s toll-free number at 1-800-772-1213 (TTY 1-800-325-0778) or visit your local Social Security office.

6.6. Appealing Online

The fastest and easiest way to file an appeal of your decision is online. You can file online and provide documents electronically to support your appeal, even if you live outside of the United States.

6.7. Examples of Successful Appeals

Incorrect MAGI: John received an IRMAA determination based on an incorrect MAGI. He filed an appeal and provided an amended tax return showing a lower MAGI. The SSA reviewed his appeal and adjusted his IRMAA accordingly.
Life-Changing Event: Sarah experienced a significant reduction in income due to a work stoppage. She filed an appeal and provided a letter from her employer documenting her work stoppage. The SSA reviewed her appeal and adjusted her IRMAA based on her new income level.

6.8. Importance of Documentation

Providing accurate and complete documentation is crucial for a successful appeal. Be sure to include all relevant documents, such as tax returns, financial statements, and documentation of life-changing events.

6.9. Seeking Professional Advice

Navigating the appeals process can be challenging. Consulting with a qualified tax professional or financial advisor can provide personalized guidance and help you prepare a strong appeal.

7. Understanding Medicare Premium Charts and IRMAA Brackets

Understanding Medicare premium charts and IRMAA brackets is essential for accurately calculating your healthcare costs and planning your finances. These charts outline the income thresholds that determine your Medicare premiums and the additional costs associated with the Income-Related Monthly Adjustment Amount (IRMAA).

7.1. Structure of Medicare Premium Charts

Medicare premium charts typically display the following information:

Filing Status: The chart is divided into sections based on your tax filing status (e.g., single, married filing jointly, married filing separately).
Modified Adjusted Gross Income (MAGI) Brackets: Each section contains income brackets that specify the range of MAGI used to determine your premium.
Part B Monthly Premium Amount: This column indicates the monthly premium you will pay for Medicare Part B based on your MAGI bracket.
Prescription Drug Coverage (Part D) Monthly Premium Amount: This column indicates the additional monthly premium you will pay for Medicare Part D coverage, in addition to your plan’s premium.

7.2. IRMAA Brackets

IRMAA brackets are the income ranges that determine the additional amount you will pay for your Medicare premiums. These brackets are based on your MAGI from two years prior. For example, your 2025 Medicare premiums will be determined by your 2023 MAGI.

7.3. 2025 IRMAA Thresholds (Example)

Here are the 2025 IRMAA thresholds for single filers and married couples filing jointly: