Investing For Dummies: How To Get Started Investing

The Investing For Dummies books, now in their 10th edition from Wiley, run hundreds of pages. You don’t need all of that to get started. You need to know what you’re buying, which account to put it in, and how to keep going once the first dollar is invested. This page covers exactly that, and our investing resource center goes further once you’re ready.

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Start Investing At Any Age

The steps on this page work at any age. These walkthroughs cover what changes at each life stage.

What Is Investing?

Buying something you expect to grow in value or pay you income over time.

Investing is buying an asset you expect to grow in value or pay you income over time. For most beginners that means owning stocks and bonds, usually through a fund that holds hundreds of them at once. When you buy one share of stock, you own a tiny piece of that company, and your share rises or falls with how the company performs.

Because you can lose money, investments have historically paid more than FDIC-insured money market accounts and other cash accounts. That extra return is your payment for taking the risk.

The Four Investments Beginners Hear About Most

Source: The College Investor.

Beginners do best with index funds, which are mutual funds or ETFs that hold every company in a market index. An S&P 500 index fund owns all 500 large U.S. companies in the index, so one purchase gives you a diversified portfolio. Our beginner’s walkthrough of ETFs covers how they differ from mutual funds.

Why Invest Instead Of Just Saving?

Over long periods, stocks have grown money roughly three times faster than cash.

Investing has grown money much faster than savings over long periods. From 1928 through 2025, the S&P 500 returned about 10% a year with dividends reinvested, while 3-month Treasury bills, a stand-in for cash savings, returned about 3.4%, according to our breakdown of historical average returns by asset class. That gap is the reason saving alone rarely funds a retirement, even with today’s high-yield savings accounts.

Compound annual returns, not adjusted for inflation. Bars compare annual return. Source: NYU Stern (Damodaran). The College Investor.

Two caveats matter. These are long-run averages, so individual years swing hard: the S&P 500 lost 36.6% in 2008 and 18% in 2022 in that same dataset. Past returns also don’t guarantee future ones. That’s why money you need within a few years belongs in savings, and money you won’t touch for decades belongs in investments. Our compound interest explainer shows why time does most of the work.

What Should You Do Before You Start Investing?

Three checks that protect your investments from being sold at the worst time.

How Much Money Do You Need To Start Investing?

$1 at most major brokers. What you add each month matters far more.

You can start investing with $1 at most major brokers. Fidelity, Charles Schwab, and many free investing apps offer $0 account minimums and $0 commissions on online stock and ETF trades, and most offer fractional shares, so you can buy a slice of a share instead of a full one.

The amount you invest each month matters far more than the starting amount. Starting small and automating the deposit beats waiting until you have a large lump sum, a point our dollar-cost averaging analysis makes with real market data.

Assumes monthly deposits starting from $0 and a steady 7% annual return, compounded monthly. Real returns vary. Source: The College Investor.

A common reader question is how much it takes to generate $1,000 a month. That’s $12,000 a year. Using the 4% withdrawal rate many retirement planners use as a starting point, you’d need about $300,000 invested. To see where you stand today, compare your balance with the average net worth by age.

Which Investment Account Should You Open First?

For most beginners with earned income, a Roth IRA.

Most beginners should open a Roth IRA if they have earned income and expect a higher tax bracket later. A Roth IRA takes after-tax money, and qualified withdrawals in retirement are tax-free. The IRS raised the 2026 IRA limit to $7,500, up from $7,000, with an extra $1,100 catch-up for savers 50 and older. Our IRA contribution and income limits page lists the 2026 Roth income cutoffs.

A Traditional IRA works the other way: you may get a tax deduction now, the money grows tax-deferred, and withdrawals are taxed as income in retirement. Only Roth accounts grow fully tax-free. Our Roth vs. Traditional IRA comparison helps you pick, and our retirement savings order of operations shows which account to fund first, second, and third.

Source: IRS. The College Investor.

A regular taxable brokerage account has no contribution limit and no withdrawal penalties, which makes it the right fit for goals between roughly five and 15 years out. The trade-off is that you pay tax on dividends and on gains when you sell, which our capital gains tax calculator can estimate.

Where Should You Open Your First Account?

It depends on how hands-on you want to be. All three have $0 account minimums.

What Should A Beginner Invest In?

One or a few low-cost, broadly diversified index funds.

A beginner should start with one or a few low-cost, broadly diversified index funds. A total U.S. stock market fund or an S&P 500 fund covers most of the market in a single purchase. Adding a total international stock fund and a bond fund gives you a simple three-fund portfolio, the most popular of the Bogleheads “lazy portfolios”.

The easiest option of all is a target-date fund. You pick the fund closest to your expected retirement year, such as a 2065 fund for a 25-year-old today, and it holds a mix of stocks and bonds that gets more conservative as that year approaches. Most 401(k) plans offer them, and our asset allocation breakdown explains how the stock-to-bond mix should change with age.

Opening an account is only half the job. A surprising number of new investors deposit money and never buy anything, so the cash sits uninvested. After you fund your account, buy your fund or set up automatic purchases, which most brokers and the best automatic investment apps make simple. If you use a robo-advisor like Wealthfront, this step happens for you.

How Much Can Your Money Grow?

See your contributions, your growth, and what the same money would earn in savings.

Start with what you can invest today, then try raising your monthly amount by $50 to see the difference over 30 or 40 years. More tools are in our free financial calculators hub.

What To Enter

Fees deserve a second look. At a 7% return, $200 a month for 40 years grows to about $525,000. A fund charging 0.5% more per year cuts that to about $457,000, roughly $68,000 less for the same deposits. Compare costs in our best IRA accounts ranking before you pick a provider.

What Do You Do After Your First Investment?

Automate, check in once or twice a year, and keep your tax paperwork.

After your first investment, automate future contributions, check your portfolio once or twice a year, and keep your tax paperwork. Index investing is low-maintenance, but it isn’t zero-maintenance, and our stock investing basics cover placing and checking your first trades.

Rebalance about once a year if your mix drifts. If you planned 80% stocks and 20% bonds and a strong year pushes stocks to 88%, sell some stock or direct new money into bonds to get back to your target. Target-date funds and robo-advisors handle this automatically, which our automatic investing explainer shows can be the difference between sticking with a plan and abandoning it.

Taxes depend on the account. IRAs and 401(k)s need no yearly tax reporting from you unless you take money out. A taxable brokerage account sends you a Form 1099 each year for dividends and any gains, which you report on your return. Most people can handle this with the best tax software for investors, or a CPA if your situation is complex.

What Mistakes Do Beginner Investors Make?

Selling in a downturn, paying high fees, and waiting too long to start.