You can start investing with as little as $1 to $100, depending on the account type and what you choose to buy

The biggest barrier to investing is not the amount of money you have—it is starting. You do not need thousands of dollars sitting in a savings account before you can own stocks, bonds, or funds. Most brokerages and investment platforms now let you begin with whatever you can afford, and many charge no account opening fee or minimum balance.

The catch is that small amounts grow slowly. A $50 investment earning 7% per year takes decades to become meaningful money. But that same $50 invested at age 25 is worth far more at 65 than the same $50 invested at age 45. Time in the market matters more than the size of your first deposit.

Key Takeaways

  • Most brokerages let you open an account with $0 to $100 and buy fractional shares, meaning you can own a piece of an expensive stock without buying a whole share.
  • Low-cost index funds and exchange-traded funds (ETFs) are simpler and safer for beginners than picking individual stocks.
  • Automatic investing—setting up regular deposits of $25 or $50 per month—builds the habit and removes the decision of when to invest.
  • Your first step is choosing between a regular brokerage account (for money you may need soon) and a retirement account like an IRA (for money you will not touch for decades).
  • Fees and commissions can eat into small investments, so look for brokerages that charge no commission on stock and ETF trades.

Fractional shares let you own part of an expensive stock with small money

Until about 2018, if a stock cost $300 per share and you had $100, you could not buy it. You had to save until you had enough for a whole share. Now most brokerages offer fractional shares—you can buy $100 worth of that $300 stock and own one-third of one share.

This matters because it removes the price barrier. You can invest $25 in Apple, $25 in Microsoft, and $25 in a fund all in the same week, rather than waiting months to save for one whole share. The returns are proportional: if you own one-third of a share and it gains 10%, your one-third gains 10% too.

Fractional shares work the same way as whole shares for dividends and voting rights, though you will own a fraction of those too. The main limitation is that not every brokerage offers them, and some charge a small fee. Check the brokerage's website under "fractional shares" or "partial shares" before opening an account.

Index funds and ETFs are simpler than picking individual stocks

When you have a small amount to invest, your focus should be on building the habit and letting time work, not on beating the market. Index funds and exchange-traded funds (ETFs) do this automatically by holding dozens or hundreds of stocks in one fund.

An index fund that tracks the S&P 500, for example, holds pieces of 500 large U.S. companies. If you invest $50 in that fund, your $50 is spread across all 500 companies. You do not have to research which companies are good or worry that you picked wrong. You own a slice of the whole market.

ETFs work the same way but trade like stocks—you can buy them during market hours and see the price change throughout the day. Index funds only trade once per day, after the market closes. For a beginner with small amounts, the difference does not matter much. Both charge low fees (often 0.03% to 0.20% per year) and require no special knowledge to own.

Set up automatic deposits to invest regularly without thinking about it

The hardest part of investing small amounts is staying consistent. It is easy to invest $50 once and then forget about it for six months. Automatic investing removes that decision: you tell your brokerage to move $25 or $50 from your bank account every week or month, and it happens without you doing anything.

This approach has two big advantages. First, you build the habit without willpower—the money moves automatically, like a bill payment. Second, you practice dollar-cost averaging, which means you buy more shares when prices are low and fewer when prices are high. Over time, this smooths out the effect of market ups and downs.

Most brokerages let you set this up in their app or website in about five minutes. You link your bank account, choose the amount and frequency, and pick what fund or stock to buy. Then it runs on its own. You can change or stop it anytime.

Choose between a regular account and a retirement account based on when you need the money

Before you open an account, decide whether this money is for retirement (money you will not touch for 20+ years) or for something sooner (a house down payment, a car, a sabbatical in 10 years).

If it is for retirement, open an IRA (Individual Retirement Account). There are two main types: a Traditional IRA lets you deduct contributions from your taxes now, and you pay taxes when you withdraw in retirement. A Roth IRA takes after-tax money now, but withdrawals in retirement are tax-free. For most people starting out, a Roth IRA is simpler because you do not have to worry about tax deductions. You can contribute up to $7,000 per year (the limit changes yearly), and the money grows tax-free.

If the money is for something sooner, open a regular brokerage account. There are no contribution limits, no age restrictions, and no penalties for withdrawing whenever you want. You will pay taxes on gains and dividends, but you have complete flexibility.

Look for brokerages with no commission and low fees

Fees matter more when you are investing small amounts. If you invest $100 and pay a $10 commission, you have already lost 10% before you start. That is why commission-free trading is essential.

Nearly all major brokerages now offer commission-free stock and ETF trades. This includes Fidelity, Vanguard, Charles Schwab, E-Trade, and Robinhood. Some also offer commission-free mutual fund trades, though a few funds charge their own internal fees.

Beyond commissions, watch for account fees (most charge none), inactivity fees (rare now), and fund expense ratios. An expense ratio is the annual cost to own a fund, expressed as a percentage. A fund with a 0.05% expense ratio costs $5 per year on a $10,000 investment. A fund with a 1% ratio costs $100 on the same investment. Over decades, this difference compounds. Stick with funds under 0.30% expense ratio, and you will be fine.

Start with one fund, then add more as you learn

Beginners often freeze because they think they need to build a perfectly balanced portfolio right away. You do not. Start with one low-cost index fund or ETF that matches your time horizon and risk tolerance, invest in it regularly, and learn as you go.

If you will not need the money for 20+ years, a total stock market index fund (like VTI or VTSAX) is a solid choice. If you want some international exposure, a fund that tracks the whole world market (like VTWAX) works too. If you are nervous about stock market swings, a fund that mixes stocks and bonds (like a target-date fund) can feel less volatile.

Once you have been investing for a few months and understand how it works, you can add a second fund or explore other options. But starting simple means you actually start, rather than spending six months researching the perfect allocation.

Frequently Asked Questions

Can I invest $10 or $20 at a time?

Yes. Most brokerages have no minimum per trade, so you can invest $10 in an ETF or $20 in a stock with fractional shares. The only cost is the expense ratio of the fund itself. However, if you are investing through a bank or older brokerage that charges per-trade commissions, small amounts become expensive—avoid those.

What is the difference between a stock and a fund?

A stock is ownership in one company. A fund is a basket of many stocks (or bonds) bundled together. With $50, you can own a fractional share of one stock or own a piece of hundreds of companies through a fund. Funds are simpler for beginners because you do not have to pick which companies are good.

How much should I invest each month to see real growth?

There is no magic number. Investing $25 per month for 40 years beats investing $0 per month. The amount matters less than consistency. Start with what you can afford without touching your emergency savings, and increase it when your income rises.

Should I wait until I have more money to start?

No. The earlier you start, the more time your money has to grow. Investing $50 per month starting at age 25 will be worth far more at 65 than investing $500 per month starting at age 45, even though you invested less total money. Time in the market is your biggest advantage when you are young.

What if the stock market crashes after I invest?

If you are investing for retirement and will not touch the money for decades, a crash is actually good—your regular investments buy more shares at lower prices. If you need the money in a few years, a crash is painful, which is why money you might need soon should not be in stocks. Match your investment type to when you actually need the money.