Forget the 4% rule. Consider this new magic number for retirement withdrawals instead.

In a survey by the Senior Citizens League, 69% of older adults said they worry that high prices caused by inflation will drive up their spending and cause them to deplete their retirement savings and other assets.
In a survey by the Senior Citizens League, 69% of older adults said they worry that high prices caused by inflation will drive up their spending and cause them to deplete their retirement savings and other assets. - Getty Images

Some rules are meant to be broken.

The time-honored — and sometimes controversial — 4% rule suggests that a retiree should be able to withdraw 4% of their savings and investments in their first year of retirement and then adjust the dollar figure based on their updated balance every year thereafter. The theory is that this method gives people an excellent chance of not outliving their money.

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That would mean that someone with $1 million in savings and investments who followed the 4% rule would be able to spend an inflation-adjusted $40,000 each year in retirement.

But in some years, that rule just doesn’t hold up.

Morningstar suggests in a new research report that retirees searching for a safe starting withdrawal rate should go no higher than 3.7%. That gives them a 90% probability of having some money remaining at the end of a 30-year retirement period.

Last year, Morningstar estimated 4% as the safe starting withdrawal rate. In 2022, the recommended rate was 3.8%, and in 2021 it was 3.3%.

The decrease in the withdrawal percentage compared with last year was due largely to higher equity valuations and lower fixed-income yields, which resulted in lower return assumptions for stocks, bonds and cash over the next 30 years, said Christine Benz, Morningstar’s director of personal finance and retirement planning.

The research comes on the heels of a strong year for the U.S. stock market. Year to date, the S&P 500 SPX is up 27%, the Dow Jones Industrial Average DJIA is up 16%, the Nasdaq COMP is up 34% and the Russell 2000 RUT is up 16%. Those returns have helped push up the number of “401(k) millionaires,” Fidelity reported.

While the 30-year inflation forecast has dropped to 2.32% from 2.42%, lower return expectations for stocks, bonds and cash more than offset the positive direction of the inflation forecast, Morningstar said in the report.

“Starting at 3.7% and given a 30-year time horizon from, say, age 65 to age 95, it would provide some leftover assets that you can use in case you live longer or in case you want to leave money to heirs,” Benz told MarketWatch.