In Ramsey Solutions' 2017–2018 survey of more than 10,000 U.S. millionaires, only 31% had averaged $100,000 a year over their careers. A third never earned six figures in any single year.

If you've assumed wealth starts with a big salary, you're not alone. Income is easy to see. It shows up in job titles, houses, and cars. Wealth is mostly invisible, tucked into accounts nobody else looks at. So when you picture how people become wealthy, you probably picture the part you can see.

The survey suggests that picture is incomplete. A big income helps, but many people build wealth without one. To see how, it helps to meet someone whose paycheck never came close to big.

Employee number three

In 1947, a young woman from Brooklyn named Sylvia Bloom took a job as a secretary at a new Wall Street law firm, Cleary Gottlieb. She was the firm's third employee. Bloom had grown up during the Great Depression and earned her degree from Hunter College at night, while working during the day.

She stayed at the firm for 67 years.

In that era, a secretary often handled her bosses' personal business, down to their investments. The executor of her estate later described what Bloom did with that job. When a lawyer bought a stock, Bloom placed the order for him. Then she bought the same stock for herself, in a smaller amount, "because she was on a secretary's salary."

For decades, she did this quietly. Home was a rent-controlled apartment, and the subway was how she got to work. A human resources executive at the firm remembered seeing her climb out of the subway in a fierce snowstorm when she was 96. He asked what she was doing there. "Why, where should I be?" she said.

She retired at 96 and died not long after, in 2016. Only then did anyone learn what those small purchases had become. Her money was spread across three brokerage houses and 11 banks, and it came to more than $9 million. She left most of it for scholarships for students who couldn't afford college. The largest share, $6.24 million, went to the Henry Street Settlement in New York, the largest single gift from an individual in the group's 125-year history.

Her paycheck was a secretary's paycheck. What she did with it for 67 years is what made the difference.

Two people, one income

Bloom's story is rare. The pattern underneath it shows up in research that's far more ordinary.

In The Millionaire Next Door, published in 1996, Thomas Stanley and William Danko offered a simple way to compare people with similar incomes. Multiply your age by your yearly pretax household income, then divide by 10. The result, they suggested, is roughly what your net worth should be. People with at least twice that amount, they called prodigious accumulators of wealth. People with half or less, they called under accumulators.

The labels are clumsy. The finding behind them is sharp: people with the same income can end up in very different places.

Two of their case studies make the point. One was the 50-year-old owner of a mobile home dealership, with a household income of $90,200. The other was a 51-year-old attorney who earned a little more, $92,330. By the formula, the dealer should have been worth about $451,000. He was worth $1.1 million. The attorney should have been worth about $471,000. He was worth $226,511. The dealer had nearly five times the attorney's net worth.

Same age, same income, very different results. If you know two people with similar jobs and very different savings, you've seen this up close. Stanley and Danko found that many high earners, especially in white-collar professions, spent heavily on the things that signal success: bigger homes, better cars, finer clothes. Many of the people who built wealth spent far less and invested the difference.

Your income sets the size of the opportunity. Your habits decide how much of it you keep.

What an ordinary income can do

"Ordinary income" can sound like a polite way of saying "not enough." So here are the numbers.

Say you earn $50,000 a year and invest 15% of it, about $625 a month. At an assumed 7% average annual return, which nobody can guarantee, that could grow to roughly $760,000 in 30 years. In 35 years, it could pass $1.1 million. In 40, it could reach about $1.6 million.

At $40,000 a year, the same 15% is about $500 a month. Over 40 years, at the same assumed return, it could grow to roughly $1.3 million.

These aren't forecasts. Markets rise and fall, raises come and go, and inflation means future dollars buy less than today's. But they show what the survey hints at. For many people, the path to seven figures runs through a steady share of an ordinary salary, invested for a long time.

That's also why age matters so much. In Stanley's later research, the typical millionaire was 57, and 65% of the millionaires he surveyed had started working full time at 22 or younger. That's about 35 years of paychecks. Wealth built this way usually arrives slowly. The people who get there often look unremarkable for decades.

What the research can't say

None of this means income doesn't matter. It matters a lot.

A higher income makes saving easier, because more is left after the essentials. It can make wealth arrive sooner, and it leaves more room for mistakes. Stanley himself warned that his formula overstates what younger people should have, since they've had fewer years to build. And on a very low income, saving 15% may not be possible at all. No habit can fix a paycheck that doesn't cover the basics.

The research has other limits. Ramsey's survey is self-reported, and it describes only people who already became millionaires. Nobody surveyed the people who earned modest incomes, saved just as carefully, and never got there because of illness, job loss, or bad timing.

Bloom's story has limits too. News reports don't tell us how much of her pay she invested, or what else her household relied on. And her method drew real criticism after her story spread: copying trades you see at work can raise ethical and legal questions.

So here's the honest answer to the question in the title. You don't need a high income to become a millionaire, though a high income makes it easier. What the evidence shows is that income alone rarely decides the outcome. Plenty of people earn a lot and keep little. Plenty earn a modest amount and keep a great deal.

Keep the gap, and give it years

Bloom's story shows two of the four habits behind self-made wealth.

The first is keep your lifestyle below your income. She lived modestly, in a rent-controlled apartment, riding the subway, and kept buying whenever the chance came up. For someone on ordinary pay, that gap between earning and spending is where investing money comes from.

The second is invest automatically. Bloom had no automatic transfer, but she had something close. The same trigger, a boss's stock order, turned into her own investment again and again. Once the routine was set, it ran on its own.

Her method isn't one to copy. Beyond the ethical questions, following someone else's stock picks can pile your money into a handful of companies. Her results also depended on the lawyers' choices and a long rise in the market. A broad, low-cost investment spread across many companies is a steadier way to get the same effect.

What's worth copying is the rule that tied it together: give it years. Bloom built her fortune one small purchase at a time, across 67 years.

This week

Work out what share of your take-home pay you could invest every month, even in a tight month. Then set up one automatic transfer for that amount, timed to leave on payday. If the number feels small, start anyway. The years will do more of the work than the amount.

Summary. In Ramsey Solutions' 2017–2018 survey, only 31% of U.S. millionaires averaged $100,000 a year, and a third never earned six figures in any year. Sylvia Bloom, a legal secretary for 67 years, left more than $9 million after buying small amounts of stock for decades, though her method isn't one to copy. Stanley and Danko found that people with the same income can end up with very different wealth, depending on how much they spend and invest. A high income makes wealth easier, but it rarely decides the outcome alone. Keep your lifestyle below your income, invest automatically, and give it years.

A bigger paycheck can be spent as fast as it arrives. A steady gap, invested for decades, keeps adding up.

For education only, not financial advice. Returns are never guaranteed.

Sources

  • Ramsey Solutions, The National Study of Millionaires (fielded 2017–2018; more than 10,000 U.S. millionaires). Self-reported survey; low to moderate evidence.
  • Sylvia Bloom: The New York Times (2018), as reported by the Associated Press, CBS New York, NBC New York, CNBC, and The Seattle Times (2018); Henry Street Settlement (2018).
  • Thomas J. Stanley and William D. Danko, The Millionaire Next Door (1996): the wealth equation, the accumulator categories, and the mobile home dealer and attorney case studies. Moderate evidence (descriptive).
  • Thomas J. Stanley, "How Wealthy Should You Be?" (2010): the typical millionaire's age of 57, the formula's limits for younger people, and the share who started working full time by 22.
  • Investment figures are illustrations calculated at an assumed 7% average annual return with monthly contributions. They are not forecasts.

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