This surcharge is called IRMAA the Income-Related Monthly Adjustment Amount and it operates as a stealth tax that catches many Utah families completely off guard. Combined with Utah’s 4.65% flat state income tax and the partial taxation of Social Security benefits at higher income levels, IRMAA quietly erodes thousands of dollars of retirement purchasing power each year. With the right income planning strategy, many retirees can reduce or eliminate that exposure entirely.

How IRMAA Works and Why It Surprises So Many Retirees

IRMAA brackets in 2026 are tiered based on 2024 MAGI. Individual filers with income above $106,000 begin paying surcharges on top of the standard Part B premium. Each tier steps up meaningfully–the first adds roughly $74 per month per person, the next approximately $185, and the highest tiers push the total Part B cost past $590 per month per person.

For a married couple, where surcharges are assessed individually, the second IRMAA tier adds over $370 per month in additional premium costs compared to a couple just below the threshold. What makes this particularly frustrating is the two-year lookback. A retiree who sold a rental property, took a large IRA distribution, or converted to a Roth in 2024 may find that one-time income triggering elevated Medicare premiums all through 2026. For Utah retirees managing rising RMDs, this is not a one-time risk it is a recurring challenge that grows more consequential every year.

The Utah Tax Pile-On

Understanding IRMAA in isolation understates the problem. Utah’s 4.65% flat income tax applies broadly to retirement income IRA distributions, pension income, and interest earnings are all generally taxable. For higher-income retirees, a portion of Social Security becomes federally taxable as well, feeding back into MAGI and potentially triggering a higher IRMAA tier.

A Utah couple with $95,000 in combined income from Social Security and IRA distributions may find that an RMD increase of just $15,000 triggers the first IRMAA tier for both spouses, increases their taxable Social Security, and subjects the full amount to state income tax producing a marginal cost on that incremental income far higher than most retirees anticipate.

How Fixed Index Annuities Help Manage MAGI

This is where the tax-deferred structure of a Fixed Index Annuity becomes strategically valuable beyond its growth and income features. When funds are repositioned from a taxable account into a non-qualified FIA, growth accumulates tax-deferred.

Unlike a brokerage account where dividends, interest, and realized gains appear on your tax return annually, an FIA’s index credits do not generate MAGI until they are actually distributed. For a retiree managing proximity to an IRMAA threshold, that distinction can be the difference between the standard premium bracket and a surcharge tier costing an additional $1,800 or more per year per person.

A guaranteed income rider allows annuity distributions to be structured in a predictable, controlled manner rather than as lump sums that spike MAGI unpredictably. IRMAA planning is fundamentally about smoothing income across years. A retiree who can project annual income within a $5,000 to $10,000 range has real ability to stay below a threshold. A retiree whose income fluctuates with market performance, RMD calculations, and ad hoc withdrawals does not.

Practical Strategies Worth Exploring

For Utah retirees between 60 and 73, several approaches can work together to reduce IRMAA exposure. Repositioning non-qualified savings into an FIA removes that capital from taxable-income calculations until distributions begin.

Strategic Roth conversions in lower-income years before RMDs begin at 73 can reduce future taxable distributions and lower future MAGI. Using an FIA’s guaranteed income rider to supplement or replace traditional IRA distributions gives retirees direct control over how much taxable income appears in any given year.

Many Utah retirees I work with are surprised to find that modest income adjustments shifting the source or timing of distributions rather than the total amount allow them to step down an entire IRMAA tier. For a married couple, that one adjustment can mean $1,800 to $4,400 in annual Medicare premium savings alone, before accounting for the downstream effects on Social Security taxation and Utah state income tax.

Income Planning Is Medicare Planning

The broader lesson of IRMAA is that retirement income planning and healthcare cost planning are not separate conversations. Every dollar of taxable income in retirement carries a secondary cost most retirees have never been shown. Advisors who build retirement income plans with IRMAA in mind produce meaningfully better outcomes than those who treat Medicare premiums as a fixed line item.

A Fixed Index Annuity with a guaranteed income rider is not a tax strategy on its own. But as part of a coordinated retirement income plan, its tax-deferred growth and predictable distribution structure give Utah retirees genuine leverage over one of the most overlooked costs in retirement.

If you are approaching Medicare age, already enrolled, or expecting significant income changes in the next two years, now is the right time to review whether your income plan is working for or against your Medicare costs. The thresholds are specific. The surcharges are real. And in Utah’s layered tax environment, the stakes of getting this right are higher than most retirees realize.

Lyle Boss, The REAL BOSS Financial, endorsed by Glenn Beck as the premier retirement advisor for Utah and the Mountain West States. Boss Financial, 955 Chambers St. Suite 250, Ogden, UT 84403. Telephone: 801-475-9400. https://www.safemoneylyleboss.com/