How to Become a Self-Made Millionaire

This page is built on the major studies of self-made millionaires. It covers what they did, the order they did it in, and the math behind it. It also covers what the research can’t tell you. No study can promise that doing the same things produces the same result.

Start with the timeline

Becoming a self-made millionaire is rarely fast. In the surveys, most people took decades of steady work, saving, and investing. Fast fortunes exist, but they are the exception.

That changes the strategy. If wealth were fast, the answer would be a big bet. Because it is slow, the answer is a small, correct thing, repeated for years without interruption. What a self-made millionaire is, and what the data shows →

Before the four habits: stop the losses

Some people start below zero. High-interest debt compounds against you, often faster than investments compound for you. Paying it off earns you the full interest rate you would have paid, with no market risk. Clear it before you invest seriously.

The four habits

Not sure where to start? Take the two-minute self-assessment →

1. Build a paid skill

Income is the engine. You can’t keep what you never earned, and a higher income makes every other move easier.

But the research is clear that a big salary isn’t required. In Ramsey Solutions’ National Study of Millionaires, the most common careers were engineer, accountant, teacher, manager, and attorney. Only 15% ever held a senior leadership role, and a third never earned six figures in any single year. What mattered was steady earning power that grew over a career.

This week: name one skill that would make you worth more in three years, and spend an hour on it.

2. Keep your lifestyle below your income

This is the most repeated finding in the field. In The Millionaire Next Door, Thomas Stanley and William Danko found that many high earners spend their income on looking rich. The people who build wealth live well below their means.

The hardest part comes when income rises. The pull is to spend the raise. The people who build wealth send it to savings and investments instead, so an ordinary raise becomes lasting wealth rather than a nicer month.

Housing matters most. Stanley found that where you live shapes what you spend on nearly everything else, and most millionaires in his research lived in modest homes they kept for years. How millionaires actually live →

This week: look at what happened to your spending the last time your income went up.

3. Invest automatically

Money that sits still doesn’t compound. Eight in ten millionaires in the Ramsey survey invested through a workplace retirement plan. The path that shows up most in the data is the unexciting one: ordinary accounts, broad funds, steady contributions, and staying invested through downturns.

Automation does most of the work. Money that moves before you see it gets invested every month. Money you have to decide to invest eventually gets skipped.

This week: set up one automatic transfer into an investment account, of any amount.

4. Own a stake

At the top of the income scale, most earners are “working rich.” Economists Matthew Smith, Danny Yagan, Owen Zidar, and Eric Zwick found that most of their income comes from their own skills. Many own mid-sized firms in skill-heavy industries. Stanley and Danko also found business owners heavily represented among millionaires.

Owning can mean a small service business, a stake in the company you help build, or a practice with your name on it. It has the highest upside of the four habits and the most risk. Many self-made millionaires never took this step and got there through the first three.

This week: write down one thing your skills produce that you could own a share of.

Four rules that make the habits stick

None of the four habits is a secret. The hard part is doing them on the weeks nobody is checking. Research in behavioral economics points to four rules that make money habits stick:

• Decide before the money arrives. In Richard Thaler and Shlomo Benartzi’s Save More Tomorrow program, people committed future raises to savings in advance, and participants’ savings rates rose sharply. A U.S. Department of Labor review rates the study’s causal evidence as low, so treat it as a promising method, not proof.
• Remove the choice. Brigitte Madrian and Dennis Shea found that 401(k) participation was significantly higher when employees were enrolled automatically, and many kept whatever the plan chose by default.
• Keep it out of reach. Money in a separate account, moved before payday, is harder to spend on impulse.
• Give it years. The payoff comes late, as the math below shows.

The math

Here is what steady investing looks like with numbers. These figures assume a 7% average annual return, compounded monthly. Real returns vary, and they are never guaranteed.

• $500 a month for 30 years grows to about $610,000.
• About $820 a month for 30 years grows to about $1 million.
• About $1,230 a month for 25 years grows to about $1 million.
• About $1,920 a month for 20 years grows to about $1 million.

Two patterns stand out. Time does more of the work the longer you stay invested: in each 30-year example, the balance grows more in the last ten years than in the first twenty combined. And every decade you wait roughly doubles or more what you need to invest each month.

You control three levers: how much you invest, how long you stay invested, and how much you lose to fees and taxes. You don’t control the market.

Not financial advice. These examples are illustrations, not predictions. Markets fall as well as rise, and you can lose money, including your principal. For decisions about your own money, talk to a qualified, fee-only fiduciary advisor.

What this path isn’t

• Fast. The surveys describe decades, not a few years.
• A single clever bet. The path in the data is steady and unexciting.
• Guaranteed. Illness, job loss, bad timing, and where you started all matter. The research describes people who already succeeded, so it can show what they did but not promise that the same habits work for everyone.
• Only for high earners. Many millionaires in the research never had a large salary.

The short version

Earn more over time. Keep more than you spend. Invest the difference and leave it alone. Own part of what your skills produce. Then keep doing it for longer than feels reasonable.