“What does it really mean to be a millionaire today?” The question is gaining urgency as a record number of Americans cross the $1 million mark in their 401(k) accounts, a milestone that feels psychologically powerful yet often functions as middle-class wealth in practice.
By the end of the third quarter of 2025, Fidelity reported 654,000 401(k) millionaires, its largest count since tracking began in the early 2000s. At Alight, 3.2% of accounts reached more than $1 million, double the share from late 2022, while at T. Rowe Price, 2.6% of participants hit the milestone, up from 1.3% two years prior. The boom reflects not only a third consecutive year of strong equity market gains but also disciplined and long-term saving habits.
Now, half of all private-sector employees are participating in 401(k) plans, placing pretax dollars directly from paychecks into accounts. Allocations have skewed heavily toward equities, as those in their late 30s held about 88% in stocks last year, compared with 82% a decade earlier. That equity exposure has amplified returns in recent years, though it also amplifies risk. In all, Vanguard’s research shows that professionally managed allocations often target-date or balanced funds now account for 67% of participant assets, a leap from 40% in 2013.
Seven figures rarely come overnight. Fidelity says its retirement-account millionaires have typically been saving and investing for 25 to 26 years. “It’s a very sweet place to be,” said John Ward, an 82-year-old retiree in Rye, N.Y., who follows the Boglehead philosophy of holding low-cost index funds and avoiding frequent changes. That approach, rooted in broad diversification and patience, has helped investors ride out inflation spikes, tariff disputes, and market volatility without abandoning their plans.
Indeed, resilience has been among the hallmark characteristics of this group of investors. Even during the bear market in 2022, when the S&P 500 had lost 19%, many continued to maintain or increase their contributions. At Vanguard, the average deferral rate reached a record 7.7% in 2024, with almost half of participants increasing their rate of savings through automatic escalation features. This steady contribution, combined with employer matches, brought the total savings rates close to Fidelity’s guidance of 15% and has been key to the compounding of wealth over decades.
Yet the term “millionaire” is misleading. UBS Global Wealth Management describes many in that cohort as “moderate millionaires,” meaning having assets between $1 million and $5 million. “The new dollar millionaires have broken a psychological wealth threshold, but their income and spending is that of middle class households,” said Paul Donovan, UBS’s chief economist. In practice, it typically takes at least $5 million in assets to spend like a “stereotypical millionaire.” That reality underlines the need for assessments of whether retirement savings are adequate to support desired lifestyles. Studies from Boston College’s Center for Retirement Research estimate that some 40% of all households in the U.S. still risk being unable to support themselves at the same standard of living in retirement.
Analysts recommend that savers track their progress toward both replacement-rate goals replacing a certain percentage of pre-retirement income and absolute living-standard targets, such as the minimum level the Pensions and Lifetime Savings Association projects. Heavy equity allocations reward in bull markets but, if not tempered with strategies to weather downturns, carry long-term risks. The Boglehead approach espouses simplicity, low fees, and diversification-a three-fund portfolio across U.S. stocks, international stocks, and bonds, adjusted over time to match your risk tolerance.
Investment discipline is required to avoid costly mistakes, such as panic selling, yet maintain exposure to growth assets that can outpace inflation. It is inflation, though, that acts as the silent thief. Historical series reveal that it took $213,000 in 1990 to sustain the same lifestyle that $60,000 bought in 1970, which is a 3.5 times increase over twenty years, driven by compounding price rises. Healthcare can rise faster than general inflation, so retirees may have to consider planning for higher-than-average increases in targeted categories.
Long-term asset allocation with a hedge against inflation-such as TIPS, real estate, or commodities-improves purchasing power when augmented with cash reserves to be used in bear markets to avoid forced sales of equities. The question, for those near retirement, isn’t just whether their account balance has hit $1 million but whether that amount will sustain decades of spending, survive market cycles, and keep up with inflation.
As Angie O’Leary, of RBC Wealth Management, tells younger clients, “You can be a millionaire by the time you’re 60 or 65” with regular saving. The trick is making sure that milestone equates to enduring financial security and not just a number on a statement.
