Medicare Part D

Rio Rancho retirees and IRMAA: how the income brackets add to Part B and Part D for 2027

RIO RANCHO, N.M. — If your retirement income has climbed in the last couple of years, your 2026 Medicare bill may look different than a neighbor's. That is because of IRMAA — the Income-Related Monthly Adjustment Amount — an extra charge some higher-income beneficiaries pay on top of the standard Part B and Part D premiums. For 2026, the first IRMAA bracket kicks in above $109,000 in income for a single filer, based on the tax return Social Security has on file.

Medicare Part DRio Rancho, NM

Here is what Sandoval County residents should know before the Annual Enrollment Period ends December 7.

What IRMAA actually is

IRMAA is not a separate bill you shop for. It is an extra amount the federal government adds to your Part B premium, and to your Part D premium if you have drug coverage, when your income is above certain thresholds. Everyone on Medicare pays the standard Part B premium; higher earners pay that plus a surcharge. The surcharge grows in steps as income rises through five brackets.

Because Medicare Advantage plans include Part B, the Part B IRMAA still applies even if you are enrolled in an Advantage plan. Part D IRMAA applies whether your drug coverage comes through a stand-alone Part D plan or is built into a Medicare Advantage plan with drugs.

The income thresholds for 2027

Social Security looks at your Modified Adjusted Gross Income (MAGI) from two years earlier. For 2027 premiums, that means your 2025 tax return.

For 2026, IRMAA begins above these MAGI levels:

• Single filer: above $109,000
• Married filing jointly: above $218,000
• Married filing separately (lived with spouse): the surcharge structure starts at a much lower threshold and jumps quickly

There are five surcharge tiers in total. The top tier applies to single filers with MAGI at or above $500,000 and joint filers at or above $750,000. For the exact dollar surcharge in each tier, check the Medicare costs page at medicare.gov, which is updated each fall.

How Rio Rancho residents get notified

If you are affected, Social Security mails a "predetermination" or initial IRMAA notice, usually late in the year. The letter shows the income figure used, the bracket you fell into, and the extra amount that will be added to your Part B and, if applicable, Part D premiums in the coming year.

Rio Rancho is in Sandoval County, where retirees can also get free, unbiased help understanding these notices through New Mexico's State Health Insurance Assistance Program (SHIP), known locally as the Benefits Counseling Program through the Aging and Long-Term Services Department.

When you can push back

An IRMAA determination is not final if your circumstances have changed. Social Security recognizes several "life-changing events" that can justify using a more recent, lower income figure:

• Marriage, divorce or annulment
• Death of a spouse
• You or your spouse stopped working or reduced hours
• Loss of income-producing property (not from a sale)
• Loss or reduction of a pension
• Employer settlement payment from a closure or bankruptcy

To request a recalculation, file Form SSA-44 with documentation (for example, a letter showing your retirement date, or a death certificate). You can drop it off at a local Social Security office or mail it in. If you disagree with the decision itself — for example, you believe the IRS data is wrong — you can file a formal appeal.

How this fits with your Part D decisions for 2027

IRMAA is separate from the plan-level changes taking effect in 2027. Two program-wide facts are worth keeping in view as you compare drug coverage this fall:

• The Part D out-of-pocket cap is $2,100 in 2026 and $2,400 in 2027. Once you hit that on covered drugs, you pay nothing more for covered drugs for the rest of the calendar year.
• The maximum Part D deductible is $615 for 2026 and $700 for 2027, and the old "donut hole" coverage gap is gone — Part D now has three phases.
• The Medicare Prescription Payment Plan lets you spread your drug costs across the year in monthly installments instead of paying big amounts at the pharmacy counter.

None of these program features change your IRMAA. But if your income places you in an IRMAA bracket, the total you pay for Part D each month is the plan's premium plus the Part D surcharge — worth factoring in when you compare options during AEP.

What to do before December 7

• Pull your 2024 tax return and check your MAGI against the 2026 thresholds.
• If your income has since dropped due to retirement or another qualifying event, gather documents for an SSA-44 request.
• Review any Annual Notice of Change letter from your current Part D or Medicare Advantage plan.
• Compare plans using the Plan Finder at medicare.gov, or call 1-800-MEDICARE.