Is Paying Higher Medicare Premiums Worth It If It Improves My Retirement?

Why Roth conversions can affect Medicare

A Roth conversion can raise taxable income in the conversion year. Medicare generally uses modified adjusted gross income from the tax return two years before the premium year when determining IRMAA for Part B and Part D. See Social Security’s IRMAA income-year guidance, Medicare’s guidance on income-based costs, and IRS guidance on Roth conversions.

A premium increase may occur in particular years while conversion and tax effects can extend farther into retirement. The full result matters.

Robert and Elaine’s story

Robert and Elaine Carter are a hypothetical couple nearing retirement. They have $1,100,000 in starting retirement savings, plan to spend $85,000 a year after taxes, and expect $57,600 a year in combined Social Security benefits once both are collecting.

For this illustration, they value future tax flexibility and the surviving spouse’s options. Those priorities are case-study framing, not documented intake responses. SageonRQ compared their Current Plan with a Modeled Plan that included $731,941 in projected Roth conversions.

What their SageonRQ analysis found

The Modeled Plan projects $24,116 less in lifetime taxes and $2,278,874 more in ending Roth savings. It projects about $1.17 million fewer RMDs, which is not an equal amount of tax savings. Its net-of-tax ending value is $7,959 lower. Qualified Roth withdrawals can avoid adding to federal taxable income under applicable rules. Read about Roth conversion choices and how RMDs can affect taxes.

What happened to their Medicare premiums?

The supplied ledger reports higher Modeled IRMAA tiers in two future premium years. The Current Plan reports Tier 0 in all three years shown.

The source does not provide the additional Medicare premium dollar cost. These tier labels are projections, not current Medicare premium amounts.

Why might they value the tradeoff?

In this hypothetical framing, Robert and Elaine place value on having more Roth savings and fewer future required withdrawals. A surviving spouse may face different tax brackets and income needs. However, the supplied figures do not establish a separate survivor-specific tax saving for this case.

The Modeled Plan does not have a higher after-tax ending value. Its higher IRMAA tiers in 2030 and 2031 may mean additional premium costs, but those dollars were not supplied. Roth conversions cannot guarantee protection from future tax-law changes. Whether this strategy is worthwhile depends on the household’s priorities and the full costs.

What should you look at before converting?

Consider conversion taxes, possible Medicare premium increases, future RMDs, projected Roth savings, and ending value after taxes. Income, retirement date, account mix, and spending needs can change the answer.

Common questions

Does every Roth conversion increase Medicare premiums?

No. Higher premiums depend on income and applicable IRMAA thresholds. A conversion may or may not cross a threshold.

If I pay IRMAA once, will I always pay it?

Not necessarily. Medicare generally reassesses the income-based amount each year. Some people may request a new determination after certain life-changing events.

Does a reduction in RMDs mean the same amount in tax savings?

No. An RMD is a required withdrawal, not a tax bill. Tax depends on the full income picture.

Can SageonRQ tell me whether paying IRMAA is worthwhile?

The Audit compares Current and Modeled Plans and identifies projected IRMAA exposure alongside taxes, RMDs, Roth savings, and ending value. Navigator is planned to offer more detailed comparisons. Whether a tradeoff is worthwhile depends on your goals and circumstances.

Want to explore your retirement options further?

The Retirement Opportunity Audit can identify possible changes based on your information. Retirement Strategy Navigator is planned to offer more detailed year-by-year comparisons of conversion timing, Medicare premium effects, tax exposure, and retirement income needs. Those future comparisons were not part of this case’s measured results.