IRMAA planning strategies for retiring clients.

IRMAA planning is one of the few areas of retirement work where a single dollar of income can produce a four-figure swing in a client's annual cost of living. The Income-Related Monthly Adjustment Amount is a surcharge added to Medicare Part B and Part D premiums when modified adjusted gross income crosses a defined threshold. It does not phase in. It steps. That structure is what makes it both a frequent client surprise and a genuine planning opportunity for producers who catch it early.

Most clients meet IRMAA the same way: they retire, they roll a 401(k), they take a large distribution or sell a property, and two years later a letter from Social Security tells them their Medicare premium has gone up. By then the income event is history. The work has to happen before the income year, not after the notice.

How the surcharge actually works

IRMAA is assessed on modified adjusted gross income, which for these purposes is adjusted gross income plus tax-exempt interest. Social Security uses the tax return from two years prior to determine the current year's premium. A client turning 65 in 2026 is generally evaluated on the 2024 return. That two-year lookback is the single most misunderstood part of the rule and the reason planning conversations need to start well before the Medicare enrollment window.

The brackets are tiered. Each tier carries a fixed dollar surcharge per month for Part B and a separate surcharge for Part D, and the surcharge applies per covered person. For a married couple where both spouses are on Medicare, crossing a threshold doubles the cost of the mistake. Producers who model this only for the household lead consistently understate the impact.

IRMAA is not a tax on income. It is a toll assessed on the year you happened to cross a line, collected two years later, from both spouses.

You can run the thresholds and per-tier costs for a specific income figure with the IRMAA Cliff Checker. It is worth doing before any conversation where a large distribution is on the table, because the answer is rarely intuitive.

The income events that trigger it

In practice, the same handful of events account for most avoidable IRMAA surcharges:

• A Roth conversion sized without checking the MAGI ceiling for the year.
• The sale of a rental property, a business interest, or a concentrated equity position.
• The first year of required minimum distributions, particularly where several accounts stack.
• A lump-sum pension election or a deferred compensation payout.
• An inherited IRA distribution taken in a compressed window under the ten-year rule.
• A surviving spouse filing single for the first time, which cuts every threshold roughly in half at the same income level.

That last one deserves attention. Widowhood is the most common IRMAA trigger nobody plans for. Household income often falls modestly while the filing status change cuts the bracket width sharply. The result is a surviving spouse paying a higher Medicare premium on less money, in the same year they are least equipped to deal with it.

Planning moves that hold up

Fill the bracket, do not cross it

The most reliable technique is simple headroom management. Establish the client's baseline MAGI for the year, identify the next threshold, and size any discretionary income event to stop short of it. This works well for Roth conversions, where the amount is fully within the client's control. Run the conversion figure through the Roth conversion calculator alongside the IRMAA check so the marginal tax rate and the surcharge are evaluated together rather than in sequence.

Spread the event across tax years

Where an income event can be split, splitting it is usually cheaper than absorbing one tier. An installment sale, a two-year conversion ladder, or a staged distribution schedule can keep the client under the same threshold twice instead of over it once. The math is straightforward: compare the deferral cost against the annual surcharge multiplied by the number of covered spouses.

Use qualified charitable distributions

For charitably inclined clients over the QCD age, a qualified charitable distribution satisfies the required minimum distribution without landing in adjusted gross income. That is a rare combination and one of the few tools that reduces MAGI directly rather than shifting it. The QCD calculator will show the AGI effect against a standard distribution.

File the appeal when life changed

Social Security allows a reconsideration when a life-changing event has occurred, including work stoppage, work reduction, marriage, divorce, and death of a spouse. Retirement itself qualifies. A client who retired in the current year but is being assessed on a full working-income return from two years ago is often a straightforward candidate for form SSA-44. Producers who know this exists save clients real money in the first two years of Medicare, which happens to be exactly when the client is deciding whether the relationship was worth it.

Building it into your process

IRMAA planning is not a one-time exercise. It repeats annually, the thresholds are indexed, and the client's income profile shifts as distributions begin. The producers who handle it well tend to do three things consistently.

1. 01Capture a projected MAGI figure at every annual review, not just at onboarding.
2. 02Flag any client within roughly ten percent of a threshold as a planning case for the following year.
3. 03Document the recommendation and the threshold in writing, because the consequence arrives two years later and memories are short.

The second item is where most practices lose ground. Identifying near-threshold clients across a book is a data exercise, not a judgment call, and it is the kind of repetitive review work that scales badly by hand. Producers using Ace run the projection conversationally, get the threshold distance and the surcharge exposure back, and have a draft client note ready in the same pass. The calculation stays deterministic. What changes is how long it takes to get from a question to something the client can read.

What to say to the client

The conversation works best when framed as cost, not tax. Clients respond to a number attached to a decision. Telling someone that a conversion of a particular size will raise their Medicare premium by a specific monthly amount for twelve months, for both spouses, is concrete. Telling them their MAGI will exceed a bracket is not.

Show the alternative alongside it. A conversion sized to stay under the line, a two-year split, or a partial QCD offset are all easy to present when the numbers are already on the page. That is the practical value of running the calculators before the meeting rather than during it.

If you want the full set of retirement and tax tools available to producers contracted through the firm, start a conversation.

Written for licensed life and annuity producers. This article is educational and is not financial, tax, or legal advice. Confirm current figures and client-specific outcomes with a qualified tax professional.