Two Brothers, One IRA Strategy: $240,000 vs. $0

Two retirees with nearly identical IRA balances ended the stretch between their last paycheck and their first required minimum distribution far apart: one converted $240,000 to a Roth over nine years through a decision repeated every December, while the other converted nothing.

Two brothers stopped working at roughly the same time with roughly the same amount saved in their traditional IRAs. Nine years later, when required minimum distributions began, their tax situations no longer looked alike at all. One had moved $240,000 out of his pre-tax IRA and into a Roth over those nine years. The other had moved nothing.

Neither brother earned a higher return. Neither inherited money. The divergence, as recounted by 24/7 Wall St, came down to a single choice one of them revisited every December and the other never made.

What the gap years actually are

There is a stretch in most retirements that gets treated as dead time: employment income has stopped, but required minimum distributions — the withdrawals the IRS forces out of pre-tax retirement accounts once you reach the trigger age — have not yet started. Social Security may not have been claimed either.

For the brother who acted, that stretch ran nine years. During it, his taxable income was likely the lowest it had been in decades and the lowest it would be again. That is the entire mechanic behind a Roth conversion: you voluntarily pull money out of a traditional IRA, pay ordinary income tax on it in the year you pull it, and the money lands in a Roth where future growth and future withdrawals are not taxed and where no required distribution applies to the original owner.

You are not avoiding tax. You are choosing which year to pay it in. The brother who converted chose nine low-income years. The brother who did not converted the decision by default into whatever bracket his RMD years happen to produce.

Why December is the month that matters

The detail that makes this story a method rather than an anecdote is the timing. The conversion decision was made every December, not every January.

By late in the calendar year, a retiree can see almost the entire picture: dividends and interest received, capital gains realized, any pension or part-time income, whatever came out of the IRA already. Only then is it possible to estimate how much room is left before income crosses into the next marginal bracket — and to convert an amount sized to fill that room rather than overshoot it.

Convert in January and you are guessing at a year that has not happened. Convert in December and you are doing arithmetic on a year that mostly has. Spread across nine Decembers, the brother's $240,000 works out to an average of roughly $26,667 a year — an illustrative figure, not a reported one, and almost certainly not what he actually did in any single year. The point of the annual review is precisely that the number should move: larger in a year with weak markets or low other income, smaller or zero in a year with a big realized gain or a one-off medical expense.

The two effects that compound against the brother who waited

The brother who converted nothing did not save money. He deferred a bill and let the balance that generates it keep growing.

Larger required distributions. RMDs are calculated from the account balance, so every dollar left in the pre-tax IRA enlarges the mandatory withdrawal every year for the rest of the owner's life. Nine years of untouched growth makes each of those forced withdrawals bigger.
No control over the bracket. Once RMDs start, the withdrawal is not optional. Stacked on top of Social Security, it can push taxable income higher than the retiree ever intended, drag more of Social Security into taxation, and — because Medicare premium surcharges key off income from two years earlier — raise health-care costs as a side effect.

The brother who converted flipped both. His remaining pre-tax balance is smaller, so his RMDs are smaller. And $240,000 plus everything it earns afterward now sits in an account that never triggers a required distribution at all, which also matters to whoever inherits it.

The years this does not work

The strategy is not universal, and the summary version of it gets oversold. A conversion is a bad idea in any year when the tax paid on it is higher than the tax it avoids. That happens more often than people assume:

A retiree still drawing severance, deferred compensation, or consulting income in the early gap years may be in a higher bracket than they will be at 75.
Anyone relying on an Affordable Care Act premium subsidy before Medicare eligibility can lose more in subsidy than they gain in tax positioning, because the subsidy phases out on income.
Paying the conversion tax out of the IRA itself, rather than from taxable savings, guts most of the benefit — you are shrinking the very balance you are trying to move.
A large charitable intention changes the math entirely, since qualified charitable distributions can satisfy RMDs directly from a pre-tax IRA without generating taxable income.

Market timing is a weak reason; market weakness is a decent one

Conversions are often pitched as something to do when markets fall, because converting a depressed balance moves more shares for the same tax bill. There is real logic there — the recovery happens inside the Roth, untaxed.

Markets were soft on the afternoon this account surfaced. As of 18:46 GMT on Sept. 1, 2026, the S&P 500 tracker SPY traded at $759.55, down 0.98% from a prior close of $767.05. The Nasdaq 100 fund QQQ was at $704.74, off 1.68% from $716.76, and the Dow tracker DIA sat at $526.88, down 0.88% from $531.57. Each was trading at or near the bottom of its day range.

A single down session is not a conversion signal. But it illustrates the mechanic: the same dollar amount of tax buys the transfer of more shares when prices are lower, and any rebound accrues on the tax-free side of the ledger. That is a reason to have a plan ready in advance rather than a reason to act on any given Tuesday.

What to check before this December

The brothers' $240,000 spread is the visible result. The process behind it is unglamorous and repeatable: know your RMD start age under current law, project your income for the year by late autumn, identify the top of the bracket you are willing to fill, and convert up to that line — no further. Confirm you have cash outside the IRA to pay the resulting tax. Check what the extra income does to Medicare surcharges two years out. Then do it again next year, with next year's numbers.

The brother who converted $0 did not make a wrong calculation. He made no calculation. Over nine Decembers, that is the more expensive of the two mistakes.

Key facts

Converted over nine gap years: $240,000 by one brother; $0 by the other
Starting position: Nearly identical traditional IRA balances
Decision cadence: Reviewed every December, when the tax year is nearly complete
Market backdrop (18:46 GMT, Sept. 1, 2026): SPY $759.55 (-0.98%), QQQ $704.74 (-1.68%), DIA $526.88 (-0.88%)

Frequently asked questions

What is a Roth conversion?

A Roth conversion moves money from a pre-tax retirement account, such as a traditional IRA, into a Roth IRA. The amount converted is added to your taxable income for that year and taxed at ordinary rates. In exchange, future growth and qualified withdrawals from the Roth are tax-free, and the original owner faces no required minimum distributions on it.

Why are the years between retiring and RMDs so useful for conversions?

In that window, employment income has stopped and forced withdrawals have not started, so taxable income is often at its lowest point in decades. Converting during those years means paying tax at a lower marginal rate than would apply later, once required distributions and Social Security stack on top of each other.

Why did the brother make the decision in December rather than January?

By December, nearly the whole tax year is known — dividends, interest, realized gains, pension income and any withdrawals already taken. That lets a retiree calculate exactly how much income room remains before crossing into a higher bracket and size the conversion to fill it. A January conversion is a guess about a year that has not happened yet.

How much did the converting brother average per year?

Spread evenly, $240,000 across nine years is roughly $26,667 annually. That is an illustrative average rather than a reported figure. In practice the amount typically varies year to year, rising when markets are weak or other income is low and falling to zero in years with large realized gains or unusual expenses.

What are the risks of converting too aggressively?

Converting more than the low bracket can absorb pushes income into a higher rate, defeating the purpose. It can also reduce Affordable Care Act premium subsidies before Medicare eligibility and raise Medicare premium surcharges, which are based on income from two years earlier. Paying the conversion tax from the IRA itself also erodes most of the benefit.

How do conversions affect required minimum distributions later?

Required distributions are calculated from the pre-tax account balance, so every dollar converted out permanently shrinks the base those withdrawals are drawn from. The converted money sits in a Roth, which carries no required distribution for the original owner, meaning smaller mandatory withdrawals and more control over taxable income in later years.

Sources

He Converted $240,000 in the Nine Years Between His Last Paycheck and His First RMD. His Brother Converted $0. — 24/7 Wall St

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