WalletPrep

How do I start investing?

Build a small cushion, clear high-interest debt, take your 401(k) match, then automate monthly buys of a broad index fund.

Investing5 min readUpdated

Jordan puts 4% of pay, $200, into the 401(k).

New to this?

Investing means buying things like stocks, small shares of companies, so your money can grow over years. Most people start through a 401(k), a retirement account at work, or an IRA, a retirement account you open yourself. Savings barely keep up with prices; invested money can grow much more, with drops along the way.

Myth

I need thousands of dollars saved before I can start investing.

Truth

You can start with very little. Many brokerage accounts have no minimum and sell fractional shares, so $25 or $50 is enough. A 401(k) can start with a small slice of each paycheck.

Worth memorizing

  1. 1

    Follow the order before you buy anything.

    Starter emergency fund, high-interest debt, the full 401(k) match, an IRA, then more retirement saving or a regular investing account.

  2. 2

    An employer match is an instant return.

    In the example, Jordan puts in $200 a month and the employer adds $200 more, before any market growth.

  3. 3

    One broad fund is enough to start.

    A broad index fund, or a target-date fund that mixes stocks and bonds for you, buys many companies at once.

James's take

Here's what I'd do: take the full 401(k) match first, then set up an automatic monthly buy of one broad index fund or target-date fund. Then leave it alone. Checking it every day makes normal drops feel scarier than they are.

Do this today

Log in to your workplace benefits site and find your 401(k) match formula. Set your contribution to at least the match, and check that the money is invested in a target-date or broad index fund.

Practice

1 of 3

You have $1,000 saved and a credit card balance at 24% APR. What usually comes next?

2 of 3

You earn $4,000 a month and your employer matches 100% up to 5% of pay. How much match do you get if you contribute 5%?

3 of 3

Which is a reasonable first investment for a beginner?

Tips

Automate it the day after payday

Set the contribution to come out of each paycheck or move on a fixed date. Money you never see in checking is easier to keep invested.

Contribute enough for the match

Check your plan rules for the match formula, then set your 401(k) percentage at least that high. In the example, 4% of pay gets a 4% match.

Raise it 1% each year

Bump your contribution rate by 1% of pay each time you get a raise. You barely feel it, and it adds up over decades.

Leave it alone in a drop

Prices will fall sometimes, often sharply. Keep your automatic buys running, since they now buy more shares for the same money.

A worked example: Jordan's first $550 a month

Jordan, 28, earns $5,000 a month before tax, has a starter emergency fund and no card debt. The employer matches 100% of 401(k) contributions up to 4% of pay.

  1. Jordan puts in $5,000 × 4% = $200 a month. The employer matches it dollar for dollar, adding $200 more.
  2. Jordan also sends $150 a month to an IRA, so $200 + $200 + $150 = $550 is invested each month.
  3. Over 30 years that is $550 × 360 months = $198,000 put in. At an assumed 7% a year, compounded monthly, the balance reaches $670,984.
  4. Growth is $670,984 − $198,000 = $472,984. Real returns vary and can be negative, so this is one possible path, not a promise.
The math
  1. Jordan's 401(k), 4% of pay+$200
  2. Employer match+$200
  3. IRA contribution+$150
  4. Invested each month=$550
  5. Years invested30
  6. Assumed return a year7%
  7. Balance after 30 years$670,984
  8. Total put in−$198,000
  9. Growth=$472,984
Finish the lessonDo the practice above, or mark it done if you already know this.
Brokerage accountInvesting with no limits, and tax every year.Next: Brokerage account →

Try your numbers

Reference

What $550 a month could grow to at an assumed 7% a year

YearYou put inGrowthBalance
1$6,600$216$6,816
5$33,000$6,376$39,376
10$66,000$29,197$95,197
15$99,000$75,329$174,329
20$132,000$154,510$286,510
25$165,000$280,539$445,539
30$198,000$472,984$670,984

Common mistakes

Investing before clearing card debt

No fund reliably earns more than a credit card charges. Paying off a 22% card first is the higher and surer return.

Opening an account and never buying

Money transferred into an IRA can sit as cash. Check that your contributions are set to buy your chosen fund.

Selling after a big drop

Selling when prices are down turns a temporary paper loss into a real one. Keep contributing on schedule and let time do its work.

Going deeper

Start by building a small emergency fund and paying off high-interest debt, then invest enough in your 401(k) to get the full employer match. After that, open an IRA, pick one broad index fund or target-date fund, and automate a monthly contribution.

The order matters

A starter emergency fund comes first, then debt with high interest like credit cards. Next is the full employer match, then an IRA, then more in your 401(k) or a regular brokerage account.

Match money is the best deal you will see

If your employer matches part of what you put in, that match is extra pay. Skipping it leaves money on the table every paycheck.

Simple beats clever

One broad index fund or one target-date fund is a complete starting portfolio. You don't need to pick stocks or time the market.

Time in the market does the work

Regular contributions over many years, left to compound, matter more than finding the perfect fund. Returns vary from year to year and can be negative.

The order of operations

Investing works best on a stable base. First, save a starter emergency fund of about $1,000 so a surprise bill doesn't force you to sell investments or use a credit card.

Second, pay off debt with high interest rates, like credit cards at 20% or more. Paying off a card at 22% is like earning 22% with no risk, which no investment can promise.

Third, put enough into your workplace 401(k) or similar plan to get the full employer match. Fourth, open an IRA, which can hold up to $7,500 a year (the 2026 limit). After that, raise your 401(k) contributions or open a regular brokerage account. Keep growing your emergency fund toward 3 to 6 months of essentials along the way.

Which account to open

A 401(k) is set up through your job, so you sign up with your employer or its plan website. An IRA is an account you open yourself at a brokerage firm, usually online in about 15 minutes. You will need your Social Security number, bank details and an ID.

IRAs come in two main types, Roth and traditional, and the tax rules differ, including income limits for Roth contributions. See the IRS pages in the sources, or our lesson on Roth vs traditional, before you choose. A regular brokerage account has no tax break but also no limit on how much you add or when you take it out.

What to buy first

Opening the account is only half the step. Money sitting in an IRA is often held as cash until you choose an investment, so make sure you actually buy a fund.

A broad index fund holds hundreds or thousands of companies and charges a low fee, called the expense ratio. A target-date fund holds a mix of stock and bond funds and slowly shifts toward bonds as its year gets closer. Pick the one with the year nearest when you expect to retire. Either is a sound single choice for a beginner.

Automating your contributions

Your 401(k) already comes out of your paycheck. For an IRA, set an automatic transfer from checking for the day after payday, and set the account to invest it in your chosen fund.

Buying a fixed amount on a schedule is called dollar-cost averaging. You buy more shares when prices are low and fewer when they are high, and you never have to decide when to buy.

Staying invested through drops

Stock prices fall sometimes, and drops of 20% or more have happened many times. Selling during a drop locks in the loss and often means missing the recovery, which can come quickly and without warning.

Only invest money you won't need for at least 5 years. Keep shorter-term money in savings. That way a falling market is something you can wait out instead of something you must react to.

Questions people ask

How much money do I need to start investing?

Very little. Many brokerage accounts have no minimum and let you buy fractional shares, so you can start with $25 or $50. Your 401(k) can start with a small percentage of each paycheck.

Should I invest if I have student loans?

Often yes, at least enough to get any employer match. Low-rate loans, such as many federal student loans, don't have to be paid off first. Focus extra payments on debt with high rates.

Is it a bad time to start investing when the market is high?

Nobody can reliably tell when prices will rise or fall. Investing a fixed amount every month means you buy at many different prices over time, so the starting date matters less.

Can I lose money investing?

Yes. Funds that hold stocks can lose value, sometimes a lot, and there is no promise they will recover by the time you need the money. That is why investing is for money you won't need for at least 5 years.

Printable worksheet with answer key, free for classrooms. Lesson plan for this unit.

Sources

Updated October 1, 2026. General education, not personalized financial, tax or legal advice. Figures are examples. Check current rates and limits before you act.

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