A 50-Year-Old Retiree Says His 'Biggest Mistake' Was Saving Too Much in His 401(k). He Explains What He Would Do Differently and His Workaround for Being Illiquid When He Retired. Eric Cooper maxed out his 401(k) for more than two decades and accumulated enough to retire in his late 40s.

^{This article originally appeared on Business Insider.}

In his early 20s, one of Eric Cooper's first bosses gave him some sound money advice: Contribute as much as you can to your 401(k).

He took it to heart and maxed out his plan nearly every year of his 25-year career.

Starting early and saving consistently paid off: By the time he retired from his corporate communications career at age 48, he had $2.4 million in his 401(k) account, which Business Insider verified by looking at a copy of his retirement savings statement.

While Cooper says that maxing out his retirement plan was "one of the smartest things I did," he also maintains that it was his "biggest mistake" because it made him highly illiquid.

"I saved so much in my 401(k), and then when it was time to retire, I didn't have a lot in my brokerage account or anything that was easily accessible to me," he told BI. "So, while I was rich on paper, I did not have a lot of cash on hand."

When you contribute to retirement accounts like a 401(k) or IRA, you typically can't tap into those funds penalty-free until after age 59 ½. Withdrawals before that age can incur a 10% penalty.

If he could go back, he would have decreased his 401(k) contributions to free up more cash to invest in a brokerage account, which you can withdraw from at any time without penalty.

"Even though I would take a tax hit because I'm not maxing out my 401(k), I probably should have done it just to the match and put the rest into a brokerage account," said Cooper, referring to the 401(k) match that many companies offer that is essentially free money.

^{Cooper maxed out his 401(k) for more than two decades and accumulated enough to retire in his late 40s. Courtesy of Eric Cooper}

When he first discovered the Financial Independence, Retire Early (FIRE) movement in 2019, he already had a big enough portfolio to stop working based on the 4% retirement withdrawal rule. Still, Cooper says he wasn't comfortable walking away because he was "pretty cash-poor."

Between 2019 and 2021, when he submitted his resignation letter, he made a few changes to his finances: He lowered his 401(k) contributions, upped his brokerage and savings accounts contributions, and picked up a part-time job as a bike technician. He wanted to pay off the mortgages on his four rental properties completely before quitting.

"Even with my large 401(k) savings, I'm not sure I would have felt comfortable retiring early had I not had those rental properties," said Cooper, who owns four long-term rentals in Louisville. "They gave me peace of mind and income as I transitioned into retirement."

He also researched an IRS rule allowing penalty-free withdrawals from retirement accounts.

Using Rule 72(t) to withdraw $20,000 of his retirement savings a year penalty-free

Section 72(t) of the IRS code allows individuals under age 59 ½ to take substantially equal periodic payments (SEPPs) from a qualified retirement plan without incurring the penalty.

"So few people know about it, but it's such a powerful option for those of us who have well-funded retirement plans," said Cooper.

There are stipulations: You must take annual distributions for at least five years or until you reach 59 ½, whichever comes later. The payment amount is based on your life expectancy and calculated through three IRS-approved methods — and the account holder calculates the payment, which can be complicated.

Cooper used the single life expectancy table provided by the IRS, plus a 72(t) calculator, to determine his $20,000 distribution, noting that: "You have to make sure you do the calculations correctly or you could be penalized by the IRS, so it may be worth having your accountant verify your calculations before proceeding."

The payments are essentially fixed for five or more years and can't be changed without incurring a penalty. And when you take your distributions, you'll be taxed on that money depending on your current tax bracket. Another limitation is that you can no longer contribute to the account once you start withdrawing from it.

While there are a lot of restrictions, it made sense for Cooper, who was fully committed to early retirement. Plus, he says it will help curb his eventual tax burden when he must take required minimum distributions (RMDs) from his 401(k) at age 72.

"This is a good way to enjoy your money now and reduce the taxes you'll pay in the future when the IRS makes you take required minimum distributions in your 70s. At some point, we're going to have to start spending that money, and the IRS is going to start taxing it," he said. "The longer it's sitting in there, the more money it's going to generate, the more taxes you're going to pay down the road. I'm in a lower tax bracket now, so it makes sense to spend some of it and enjoy it while I'm young enough to do so."

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