IRMAA Calculator & Medicare Premium Estimator (2026–2027)

How IRMAA Works

• IRMAA is based on your Modified Adjusted Gross Income (MAGI) from 2 years prior
• For 2026 premiums, Social Security uses your 2024 tax return
• Surcharges are in addition to the standard $202.90/month Part B premium
• All premiums and surcharges are per person — if you're married and both on Medicare, each spouse pays individually
• You can appeal IRMAA if you've had a life-changing event (retirement, marriage, divorce, etc.)
• Medigap plans do NOT cover IRMAA surcharges

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What is IRMAA?

IRMAA (Income-Related Monthly Adjustment Amount) is a surcharge added to your Medicare Part B and Part D premiums if your income exceeds certain thresholds. It's based on your Modified Adjusted Gross Income (MAGI) from 2 years ago. IRMAA is designed to have higher-income Medicare beneficiaries pay more for their coverage than lower-income beneficiaries.

What's the 2-year lookback period?

Social Security uses your income from 2 years prior to determine your current IRMAA. Examples: • 2025 IRMAA is based on 2023 income • 2026 IRMAA will be based on 2024 income • 2027 IRMAA will be based on 2025 income Why the delay? Social Security needs time to receive your tax information from the IRS and process IRMAA determinations. Important planning tip: What you do financially TODAY affects your Medicare costs 2 years from now. This makes advance planning crucial, especially if you're approaching age 63 (which affects age 65 Medicare enrollment).

What counts as MAGI?

Modified Adjusted Gross Income (MAGI) for IRMAA purposes is your Adjusted Gross Income (AGI) from your tax return plus any tax-exempt interest income (like municipal bonds). MAGI includes wages, self-employment income, investment income, retirement account distributions (including Roth conversions), Social Security benefits, pensions, rental income, and capital gains. It does NOT include qualified charitable distributions from IRAs or Roth IRA distributions after age 59½.

How do IRMAA tiers work?

IRMAA uses income brackets (or tiers) to determine your surcharge amount. There are 5 income brackets for most filing statuses, with surcharges increasing at each tier. For 2026, the brackets start at $106,000 (single) and $212,000 (married filing jointly). Each tier adds a specific monthly surcharge to both your Part B and Part D premiums. The more you exceed the base threshold, the higher your tier and monthly surcharge.

How do I avoid IRMAA?

While you can't avoid IRMAA if your income is above the thresholds, there are strategies to reduce it: 1) Appeal if you've had a life-changing event that reduced your income, 2) Use tax strategies like Roth conversions in lower-income years, 3) Time income-producing events strategically, 4) Consider qualified charitable distributions (QCDs) from IRAs if you're over 70½, 5) Manage capital gains and investment income timing, 6) Defer or accelerate income to stay below IRMAA thresholds in specific years, and 7) Consider delaying Social Security benefits if still working.

What happens if my income drops?

If you've experienced a qualifying life-changing event (retirement, marriage, divorce, death of spouse, loss of income-producing property, loss of pension, or employer settlement) that reduced your income, you can file an appeal using Form SSA-44 within 60 days of receiving your IRMAA determination notice. If approved, Social Security will use your more recent, lower income to calculate your IRMAA. Even if you don't appeal, your IRMAA will automatically adjust based on your future tax returns when Social Security receives them from the IRS.

Is IRMAA permanent?

No, IRMAA is not permanent. It's recalculated every year based on your income from 2 years prior. If your income fluctuates, your IRMAA may increase, decrease, or be eliminated entirely each year. For example, if you had high income one year due to a one-time event (like selling a business or property), your IRMAA will only be elevated for that specific Medicare premium year. Once your income drops below the thresholds on future tax returns, IRMAA goes away automatically.

How do I file an appeal?

To file an IRMAA appeal: 1) Complete Form SSA-44 (Medicare Income-Related Monthly Adjustment Amount - Life-Changing Event), 2) Gather documentation proving your life-changing event and reduced income, 3) Submit the form and documents to your local Social Security office by mail or in person within 60 days of receiving your IRMAA notice, and 4) Wait for Social Security's decision (typically 30-60 days). You must have experienced a qualifying life-changing event to appeal - you cannot appeal simply because you don't want to pay IRMAA.

Does IRMAA affect Part D?

Yes, IRMAA affects both Medicare Part B and Part D premiums. While most people focus on the Part B surcharge (which is higher), there is also a separate Part D IRMAA surcharge that increases at each income tier. For example, in 2026, the highest IRMAA tier adds $85.80 per month to Part B and $85.90 per month to Part D, totaling $171.70 per month in additional premiums. Both surcharges are based on the same income thresholds and brackets.

How often does IRMAA change?

IRMAA income brackets are adjusted periodically (but not every year) to account for inflation and changes in the cost of living. The adjustment amounts also change annually based on Medicare program costs. Social Security announces the new IRMAA brackets and premium amounts each fall for the following year. Even if the brackets don't change, your personal IRMAA can change every year based on your income from 2 years prior. It's important to review your IRMAA determination notice annually.

What if my income decreased since my tax return?

If you've experienced a life-changing event (retirement, marriage, divorce, death of spouse, loss of income-producing property, or employer settlement), you can file an appeal using Form SSA-44. You must provide documentation of the event and proof of your reduced income. Appeals must be filed within 60 days of receiving your IRMAA determination notice. If approved, Social Security will use your current, lower income instead of the 2-year-old tax return to calculate your IRMAA.

Can married couples file separate returns to avoid IRMAA?

Filing separately while living together actually results in MUCH higher IRMAA brackets and is rarely beneficial. For married filing separately, IRMAA starts at just $106,000 (same as single filers) and reaches the maximum bracket at $394,000 or more - far lower than the joint filing thresholds. This means you'll hit higher IRMAA tiers faster. However, if you're married filing separately and lived apart from your spouse for the entire tax year, you'd use the 'single' brackets which are more favorable than the married-separate brackets.

Do Required Minimum Distributions (RMDs) count toward IRMAA?

Yes. RMDs from traditional IRAs, 401(k)s, and other qualified retirement accounts are included in your Modified Adjusted Gross Income (MAGI), which determines your IRMAA. This is why some retirees use strategies like Qualified Charitable Distributions (QCDs) from IRAs, which satisfy RMD requirements but don't count as income for IRMAA purposes.

How much can I save by appealing IRMAA successfully?

The savings can be substantial. Depending on which income bracket you fall into, a successful appeal could save you $74 to $444 per month in Part B surcharges, plus $13.70 to $85.80 per month in Part D surcharges. That's a potential annual savings of $1,056 to $6,355.20 if you qualify for complete IRMAA elimination.

Time Your Roth Conversions Strategically

Convert traditional IRA funds to Roth IRA in years when your income is lower (before age 63 or after a major income reduction). Future Roth distributions won't count toward MAGI, helping you avoid IRMAA in retirement.

Avoid Large One-Time Income Spikes

Spread out capital gains, property sales, and large bonuses over multiple years rather than realizing them all at once. Consider tax-loss harvesting to offset gains. Keep an eye on the income thresholds to avoid pushing yourself into a higher IRMAA bracket.

Use Qualified Charitable Distributions (QCDs)

If you're 70½ or older, donate directly from your IRA to charity (up to $100,000/year). QCDs satisfy your Required Minimum Distribution but don't count as income for IRMAA purposes.

File Reconsideration After Retirement

Retired recently? Got divorced? Lost a spouse? File Form SSA-44 within 60 days of your IRMAA notice. Social Security will use your current year's income instead of the 2-year lookback, potentially eliminating IRMAA entirely.

Plan RRIF/IRA Withdrawals Carefully

Strategically time your Required Minimum Distributions (RMDs) and RRIF withdrawals to minimize MAGI spikes. Consider taking distributions in years when other income is lower, or spread withdrawals to stay within favorable IRMAA brackets.

Work with a Medicare Specialist

Partner with professionals who understand Medicare and tax planning. An experienced Medicare specialist can help you navigate IRMAA rules, coordinate with your overall retirement strategy, and identify personalized opportunities to reduce premiums.

⚠️ Important: Tax and financial planning strategies should be customized to your specific situation. These strategies can be complex and may have implications beyond IRMAA. Always consult with qualified tax and financial professionals before implementing major financial decisions.

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