How to Start Investing With $100

Let's be real for a second. Most people don't put off investing because they're lazy. They put it off because it feels like something you do after you have money. Like there's a minimum balance for being taken seriously.

There isn't. You can start with $100.

The amount matters less than the habit. Time does the heavy lifting.

Why $100 is enough

Here's the math that changed how I think about small amounts. At a 10% average annual return, compounded monthly:

• $100 a month for 30 years grows to about $226,000
• 40 years gets you about $632,000
• 50 years gets you about $1.73 million

Same $100. The only thing that changed is time. That's why starting at 25 instead of 35 is worth roughly $400,000 in this example, for the same monthly habit.

Capital is cheap now and expensive later. Invest early, and keep going.

You might be thinking, "That's not enough to retire." And you'd be right. That's not the point. The point is building the muscle before the dollars get bigger.

Step 1: Open an account

You need somewhere for the money to live. For most people starting out, that's one of these:

• Your workplace 401(k), especially if there's a match. A match is the closest thing to free money you'll find.
• A Roth IRA, which you open yourself at a brokerage like Vanguard, Fidelity or Schwab.
• A regular brokerage account for money you might want before retirement.

Opening one takes about 15 minutes. If you're stuck choosing, that's a sign the choice matters less than you think. Pick one and move on.

Step 2: Keep it boring

You don't need to pick stocks. A broad index fund owns a tiny slice of hundreds or thousands of companies at once. Funds like VOO or VTSAX track the broad US market, and that's the kind of thing I mean when I say "boring."

Boring is the feature. You're not trying to beat the market. You're trying to be the market, for a long time, at a low cost.

Step 3: Automate it

Set up an automatic transfer of $100 a month, then set the account to buy your fund automatically. Now it happens whether you remember or not, and voilà, you're investing.

Automation also protects you from yourself. If you have to decide every month, you'll find a reason to skip.

Step 4: Leave it alone

There will be bear markets (number go down). It will feel bad. That's normal, and it's also when your $100 buys more shares than usual.

Investing is an act of extreme patience.

Check in a few times a year, not a few times a day. Raise the amount when you get a raise. That's the whole system.

Final Thought

Starting small isn't a compromise. It's how everyone who's further along actually started.

Open the account. Automate the $100. Let time do the rest.

Your future self will thank you.

Examples assume a constant 10% average annual return, compounded monthly, before inflation, taxes and fees. Real returns vary and are not guaranteed. Funds are named as examples, not recommendations.