What Is the Income-Related Monthly Adjustment Amount
As Medicare brokers working with seniors here at Texas Medicare Advisors, we often encounter clients who are surprised by higher Medicare premiums during their retirement years. The Income-Related Monthly Adjustment Amount is a federal surcharge added to your standard Medicare Part B and Medicare Part D premiums if your income exceeds certain thresholds. The Social Security Administration determines who must pay this additional fee based on the income reported on your federal tax returns. Most Medicare beneficiaries pay the standard premium amounts, but those with higher incomes are required to shoulder a larger percentage of the actual cost of their healthcare coverage. It is important to understand that this surcharge acts as a cliff, meaning that earning even one dollar over a threshold will push you into a higher premium bracket for the entire year. The surcharge is recalculated annually, which means that your premium could decrease or drop back down to the standard amount if your income falls in subsequent years.
How Your Income Dictates Your Medicare Premiums
The calculation for this surcharge is based on your Modified Adjusted Gross Income, which is your Adjusted Gross Income plus any tax-exempt interest income you may have earned. Because the Internal Revenue Service needs time to process tax returns, the Social Security Administration uses a two-year lookback period to determine your premium amounts. This means that your premium surcharge for any given year is determined by the income you reported on your federal tax return two years prior. If you file your taxes as a single individual or as a married couple filing jointly, the agency will evaluate your specific tax filing status against the designated federal income brackets. You will receive a pre-determination notice from the Social Security Administration late in the year if your past income indicates that you will be subject to these increased premiums for the upcoming calendar year.
The Important Role of Medicare Brokers
Navigating the complexities of Medicare surcharges can be overwhelming, which is why working with experienced professionals can make a significant difference. As brokers at Texas Medicare Advisors, we help you understand exactly how your financial decisions today will impact your healthcare costs in the future. We can review your unique income situation to project potential surcharges and help you plan your retirement income distributions accordingly. If you unexpectedly trigger a higher premium bracket, we can guide you through the process of determining if you qualify for a reduction based on life-changing events. Our goal is to ensure that you are fully prepared for your healthcare expenses without facing unexpected financial shocks during your retirement.
Changes and Updates to IRMAA in 2026
Every year, the federal government adjusts the standard Medicare premiums and the associated income brackets to account for inflation, and the year 2026 brings several important changes that you should review. The standard Medicare Part B premium has increased to $202.90 per month for 2026. The baseline income threshold has also shifted, meaning that single filers will only face a surcharge if their 2024 Modified Adjusted Gross Income exceeds $109,000. For married couples filing jointly, the initial threshold has increased to $218,000.
Exploring the 2026 Income Thresholds
If your income surpassed these initial marks, you will fall into one of several higher brackets that determine your exact payment. For single filers earning between $109,001 and $137,000, or joint filers earning between $218,001 and $274,000, the Part B premium rises to $284.10 per month, alongside an additional $14.50 monthly charge for Part D. The next tier affects single filers earning up to $171,000 and joint filers earning up to $342,000, bringing the Part B cost to $405.80 per month plus a $37.50 surcharge for Part D. For those single individuals with income between $171,001 and $205,000, or married couples earning between $342,001 and $410,000, the Part B premium increases to $527.50 per month alongside a $60.40 Part D surcharge. Single filers earning up to $499,999 and joint filers earning up to $749,999 face a Part B premium of $649.20 and an $83.30 Part D adjustment. The charges continue to escalate through the final tier, reaching a maximum Part B premium of $689.90 per month for single filers earning $500,000 or more, and joint filers earning $750,000 or more. Those in this highest tier will also pay a Part D surcharge of $91.00 per month on top of their regular prescription drug plan premium.
Medicare IRMAA in Texas
Many of our clients at Texas Medicare Advisors ask us if there are any state-specific rules or differences regarding these surcharges because they live in Texas. The Income-Related Monthly Adjustment Amount is a strictly federal program governed by the Centers for Medicare and Medicaid Services and administered by the Social Security Administration. Because of this, the rules, income brackets, and premium surcharges in Texas are exactly the same as they are in every other state across the country. Your state of residence has absolutely no impact on whether you pay the surcharge or how much you are charged. You will follow the exact same federal guidelines and income thresholds regardless of whether you retire in Dallas, Austin, Houston, or anywhere else in the United States.
Filing an Appeal for an IRMAA Surcharge
Life is unpredictable, and the income you earned two years ago may not accurately reflect your financial reality today. The federal government allows you to appeal your surcharge determination if you have experienced a qualifying life-changing event that significantly reduced your income. Acceptable life-changing events include marriage, divorce, the death of a spouse, work stoppage, work reduction, or the loss of income-producing property. If you fit into one of these categories, you can file a formal appeal using Form SSA-44 with the Social Security Administration. Submitting this form along with an estimate of your current, lower income and documentation of the life-changing event can prompt the agency to recalculate your premiums without waiting for the standard two-year lookback period to catch up. We always encourage seniors who have recently retired to file this appeal immediately, as your high working years should not unfairly penalize you once you transition to a fixed retirement income.