A Roth IRA is a container, not an investment itself

The money you put into a Roth IRA sits in an account at a bank or brokerage firm. That firm holds the account, but they do not decide what to buy with it — you do. You choose what investments go inside, the same way you choose what groceries go into a shopping cart. The Roth IRA is the cart; the investments are the groceries.

The IRS does not care what you buy, as long as it is a real investment that a licensed firm can hold. You cannot buy physical gold bars and store them in your bedroom, or buy a car, or lend money to a friend. But almost everything else that trades on a market is allowed.

Key Takeaways

  • You can buy stocks, bonds, mutual funds, and exchange-traded funds (ETFs) in any Roth IRA at any brokerage.
  • The firm holding your account charges you nothing to buy or sell most of these investments, though some mutual funds have internal fees.
  • You do not have to pick individual stocks — most people buy a single fund that holds hundreds of companies at once.
  • Your choice of what to buy does not affect your tax benefits; the Roth IRA tax shelter works the same whether you own one stock or a diversified fund.

Stocks: buying pieces of individual companies

A stock is a small piece of ownership in a company. When you buy one share of Apple stock, you own a tiny fraction of Apple. If the company grows and becomes more valuable, your share becomes worth more. If the company struggles, your share loses value.

You can buy individual stocks inside a Roth IRA at any brokerage. There is no minimum — you can own one share or one hundred. Most brokerages charge nothing to buy or sell a stock. The risk is that you are betting on that one company, so if it fails, that money is gone.

Most people who are new to investing do not buy individual stocks. It requires research, and one bad pick can hurt. But the option exists if you want it.

Mutual funds and ETFs: buying hundreds of companies at once

A mutual fund is a basket of stocks or bonds managed by a professional. When you buy one share of a mutual fund, you own a tiny piece of every stock in that basket. If the fund holds 500 companies and one fails, you barely notice — the other 499 are still there.

An exchange-traded fund (ETF) works the same way but trades like a stock — you can buy and sell it instantly during market hours, and most brokerages charge nothing to trade it. A mutual fund typically trades once per day after the market closes, and some charge a fee to buy or sell.

Most people building a Roth IRA buy one or two funds instead of individual stocks. A single fund that tracks the entire U.S. stock market, for example, gives you ownership in thousands of companies with one purchase. This is called diversification — spreading your money across many investments so one failure does not wreck your account.

Bonds: lending money to governments or companies

A bond is a loan. When you buy a bond, you are lending money to a government or company. They promise to pay you back with interest on a set date. Until then, you collect interest payments, usually twice per year.

Bonds are less risky than stocks because the borrower has a legal obligation to repay you. But the interest rate is usually lower — you are trading growth potential for safety. A bond fund works like a stock fund: you buy one share and own pieces of hundreds of bonds at once.

Most people mix stocks and bonds in a Roth IRA. A common mix for someone young might be 80 percent stocks and 20 percent bonds. As you get closer to retirement, you might shift to 50 percent stocks and 50 percent bonds, or more bonds and fewer stocks.

Target-date funds: a single fund that rebalances as you age

A target-date fund is a mutual fund or ETF that automatically shifts from stocks to bonds as you get older. You pick the fund based on the year you plan to retire — say, 2055. The fund starts with mostly stocks and gradually moves money into bonds over the next 30 years.

This is the simplest choice for someone opening a Roth IRA for the first time. You buy one fund, and it handles the rebalancing for you. You do not have to think about it or make changes. The fund company does the work.

Most major brokerages offer target-date funds with no fee to buy or sell. The fund itself charges a small annual fee (usually under 0.1 percent per year), but that is deducted automatically.

Money market funds and savings options: the safest choice

A money market fund is the closest thing to a savings account inside a Roth IRA. Your money sits in very short-term loans to governments and large companies, and you earn a small amount of interest. The value does not go up or down — it stays flat.

You can keep your Roth IRA in a money market fund if you want zero risk. The downside is that the interest rate is low, so your money grows slowly. Over 30 years, this costs you a lot of growth compared to stocks or bonds.

Most people use a money market fund only as a temporary place to park cash while they decide what to buy, or if they are very close to retirement and want to avoid any risk.

What you cannot buy, and why

The IRS bans a few things inside a Roth IRA. You cannot buy physical gold, real estate, or collectibles like art or baseball cards. You cannot lend money to yourself or a family member. You cannot buy life insurance or use the account to trade options (a risky betting strategy).

The reason is simple: the IRS wants to prevent people from using a Roth IRA as a personal piggy bank or a way to hide assets. The account is meant for retirement savings, not for storing physical objects or making personal loans.

If you try to buy something that is not allowed, the brokerage will stop you. They are required by law to prevent prohibited transactions.

How to choose what to buy

If you are new to investing, start with a target-date fund or a single broad stock fund. These require almost no research and give you instant diversification. You can always change your mind later — moving money between investments inside a Roth IRA costs nothing and does not trigger taxes.

If you want more control, pick a mix of a stock fund and a bond fund based on your age and comfort with risk. The younger you are, the more stocks you can afford to own, because you have time to recover if the market drops.

If you want to buy individual stocks, that is fine — but do not put all your money into one or two companies. Keep most of your account in a diversified fund and use a smaller portion for individual picks.

Frequently Asked Questions

Do I have to pick what to buy when I open a Roth IRA?

No. You can open the account and leave the money in a money market fund or cash while you decide. But the longer you wait, the less time your money has to grow. Most people choose a fund within a few days of opening the account.

Can I change what I own after I buy it?

Yes. You can sell one investment and buy another inside your Roth IRA with no tax penalty and no trading fee at most brokerages. This is one of the big advantages of a Roth IRA — you can experiment and adjust without consequences.

What if I pick the wrong investment?

You can change it. If you buy a fund and later decide you do not like it, sell it and buy something else. The only cost is if the investment lost value — but that loss is permanent whether you sell or hold. Selling does not make it worse.

Do I need to pick different investments than I would outside a Roth IRA?

No. The same stocks, bonds, and funds you would buy in a regular account work inside a Roth IRA. The difference is the tax treatment, not the investments themselves. Pick based on your goals and risk tolerance, not on the account type.

Can I buy cryptocurrency or options in a Roth IRA?

Some brokerages allow cryptocurrency, but rules vary — check with your firm. Options trading is generally not allowed because the IRS considers it too risky for a retirement account. Stick to stocks, bonds, and funds unless you have a specific reason to do otherwise.