Where your money goes when you invest

When you invest money, you buy a piece of something that you expect will grow in value or pay you income over time. That something is usually a stock (a share of a company), a bond (a loan you make to a company or government that pays you interest), or a fund (a basket of stocks or bonds managed by someone else). Your money leaves your checking account and goes into an account held at a brokerage — a company licensed to buy and sell investments on your behalf.

The goal is that your money grows faster than it would sitting in a savings account. A savings account at a bank might pay you 4 or 5 percent per year right now. Stocks have historically returned around 10 percent per year over long periods, though the year-to-year swings are much larger. Bonds typically return less than stocks but with smaller swings. The trade-off is always the same: more growth potential means more risk of losing money in the short term.

As a homeowner, investing matters because your house is already your largest investment. Most financial advisors suggest that once you have an emergency fund (three to six months of expenses in a savings account), you should invest additional money rather than let it sit idle. This is especially true if you have decades until retirement.

Key Takeaways

  • You open an account at a brokerage, deposit money, and use that account to buy stocks, bonds, or funds that you believe will grow.
  • A 401(k) through your employer and an IRA are tax-advantaged accounts that let your money grow without being taxed each year, making them the most common starting point.
  • Index funds and target-date funds are simple ways to invest in many companies at once without picking individual stocks.
  • You should have an emergency fund of three to six months of expenses before you start investing, because money in investments should stay there for years.
  • Investing involves real risk of losing money, especially in the short term, so only invest money you will not need for at least five years.

Tax-advantaged accounts: where most people start

The easiest path is usually through your employer's 401(k) plan if one is offered. You tell your employer to take a portion of your paycheck before taxes and put it into an investment account. That money grows without being taxed each year, and you do not pay taxes on it until you withdraw it in retirement. Many employers also match a portion of what you contribute — if you put in 3 percent of your salary, they might add another 3 percent. That is assistance programs, and it is the single best reason to start with a 401(k).

If your employer does not offer a 401(k), or if you want to invest beyond what a 401(k) allows, you can open an IRA (Individual Retirement Account). There are two main types: a Traditional IRA works like a 401(k) — you get a tax deduction for the money you put in, and you pay taxes when you withdraw it later. A Roth IRA is the opposite — you put in money you have already paid taxes on, but the money grows tax-free and you owe no taxes when you withdraw it in retirement. For most people starting out, a Roth IRA is simpler because you know exactly what you paid in and do not have to worry about tax bills later.

You open an IRA at a brokerage like Fidelity, Vanguard, or Schwab. The process takes 10 to 15 minutes online. You link a bank account, deposit money, and then choose what to invest in. For 2024, you can put up to $7,000 per year into an IRA (the limit changes yearly). If you are over 50, you can put in an extra $1,000.

Simple investments for people who do not want to pick stocks

Once your money is in an account, you have to decide what to buy. The simplest choice is an index fund — a fund that holds all the stocks in a particular index, like the S&P 500 (the 500 largest U.S. companies). You buy one fund and you own a tiny piece of 500 companies. An index fund for the S&P 500 costs very little to own — often less than 0.1 percent per year in fees — because no one is actively picking stocks; the fund just mirrors the index.

Another simple choice is a target-date fund. You pick the year you plan to retire, and the fund automatically shifts from stocks to bonds as you get closer to that year. If you plan to retire in 2055, you buy a 2055 target-date fund, and you do not have to think about it again. The fund rebalances itself every year, moving money from stocks to bonds as you age. This is the set-it-and-forget-it option.

Most people who are starting out should pick one of these two. A mix of index funds — say, 70 percent U.S. stocks, 20 percent international stocks, and 10 percent bonds — is a reasonable starting point if you are in your 30s or 40s and have decades until retirement. As you get older, you shift toward more bonds and fewer stocks.

How much to invest and where the money comes from

Financial advisors often suggest the "pay yourself first" approach: decide what percentage of your paycheck goes to investing before you see the money. If you get paid every two weeks, you might have 10 percent of each paycheck automatically moved to your 401(k) or IRA. You adjust to living on the remaining 90 percent, and you never see the money you are not investing.

Start with whatever you can afford. If that is $50 per paycheck, that is enough. Most brokerages have no minimum deposit. The key is consistency — investing $100 per month for 30 years builds wealth far more than investing $5,000 once and then stopping. Time in the market matters more than timing the market.

The money should come from income you earn, not from borrowing or from your emergency fund. If you do not have three to six months of expenses in a savings account, build that first. Money in investments should stay there for at least five years, ideally much longer. If you know you will need money in two years to replace your roof or buy a car, that money should sit in a savings account, not in stocks.

What happens after you invest

Once you buy a fund or stock, you own it. The value changes every day the market is open. Some days it goes up, some days it goes down. If you are investing in an index fund or target-date fund, you should not check the balance every day — that leads to panic selling when the market drops. Instead, check it once or twice a year, and keep investing the same amount every month regardless of whether the market is up or down.

If you are investing through a 401(k), your employer's plan administrator sends you statements, usually quarterly. If you are investing through an IRA or a regular brokerage account, you can log in anytime to see your balance. You will also receive tax documents at the end of the year showing any dividends or capital gains you owe taxes on (though in a 401(k) or IRA, you do not owe taxes until you withdraw the money).

Rebalancing means shifting money between stocks and bonds to keep your mix the same. If you started with 70 percent stocks and 30 percent bonds, and stocks have grown so much that you now have 80 percent stocks, you might sell some stocks and buy bonds to get back to 70/30. Many target-date funds do this automatically. For index fund portfolios, you can rebalance once a year or every few years — there is no rush.

Common mistakes to avoid

The biggest mistake is not starting at all. People often wait until they feel they have enough money or until they understand investing perfectly. Neither will happen. Start with whatever you have, pick a simple fund, and let time do the work.

The second mistake is selling when the market drops. Markets fall regularly — sometimes 10 percent, sometimes 30 percent or more. If you sell during a drop, you lock in losses. If you hold on, the market historically recovers and goes higher. This is why you should only invest money you will not need for at least five years.

A third mistake is paying too much in fees. Some brokerages charge $5 to $10 per trade, and some funds charge 1 percent or more per year. Fidelity, Vanguard, and Schwab all offer commission-free trading and low-cost index funds. There is no reason to pay high fees when cheap options exist.

Finally, do not try to beat the market by picking individual stocks unless you have time to research companies and you are comfortable with the risk. For most people, a simple index fund or target-date fund will outperform 80 percent of people who try to pick stocks.

Investing alongside homeownership

As a homeowner, you are already building wealth through your mortgage. Each payment builds equity in your house. Investing in stocks and bonds is separate from that — it gives you wealth outside your home, which matters because your house is not liquid (you cannot quickly turn it into cash). A diversified portfolio of stocks and bonds, plus your home equity, plus your emergency fund, is a solid financial foundation.

If you have a mortgage at a low interest rate (3 percent or less), some people argue you should invest rather than pay extra toward the mortgage, because stocks have historically returned more than 3 percent. If your mortgage is at 6 or 7 percent, the math shifts — paying down the mortgage is a may provide return equal to your interest rate. There is no single right answer; it depends on your comfort with risk and your timeline.

Frequently Asked Questions

How much money do I need to start investing?

Most brokerages have no minimum. You can open an IRA or brokerage account and deposit $50 if that is what you have. Some employers require you to invest at least 1 percent of your paycheck in a 401(k), but that is the only common minimum. Start with whatever amount you can afford to leave invested for at least five years.

Is it too late to start investing if I am in my 50s or 60s?

No. You have less time for compound growth, so the math is different, but investing still makes sense if you have decades until you need the money. A 55-year-old with 10 years until retirement should shift toward more bonds and fewer stocks than a 35-year-old, but sitting in cash guarantees you will lose purchasing power to inflation. Talk to a financial advisor about the right mix for your timeline.

What if the stock market crashes after I invest?

Markets crash regularly and always recover. If you sell during a crash, you lock in losses. If you hold on and keep investing, you buy more shares at lower prices, which means your money goes further. This is why investing should only be done with money you will not need for at least five years. Panic selling is the most common way people lose money in the market.

Should I invest in individual stocks or just funds?

For most people, funds are simpler and perform better. An index fund gives you instant diversification — you own hundreds of companies with one purchase. Individual stocks require research and time, and most people who pick stocks underperform the market. Start with funds, and only move to individual stocks if you enjoy research and can afford to lose money on bad picks.

Can I invest if I still have credit card debt?

Credit card interest rates are usually 15 to 25 percent per year. No investment will reliably beat that. Pay off credit card debt first, build an emergency fund, and then start investing. The only exception is if your employer matches 401(k) contributions — in that case, contribute enough to get the full match, then use extra money to pay down debt.