IRAs earn interest and investment returns, but the rate depends entirely on what you put your money into

An IRA itself does not earn interest. An IRA is a container—a tax-advantaged account type that holds money. What earns interest or grows is what you keep inside that container. If you put cash in an IRA and leave it sitting there, it stays flat. If you put it into a savings account, money market account, certificate of deposit (CD), stocks, bonds, or mutual funds inside the IRA, then those investments earn returns or interest.

The growth rate depends on your choice of investment. A savings account inside an IRA might earn 4% to 5% annually right now. A CD might earn 5% to 6%. Stock mutual funds might earn 8% to 12% over long periods, though they fluctuate year to year. Individual stocks can gain or lose much more. You control what goes into your IRA, so you control what it earns.

Key Takeaways

  • An IRA is a container for investments, not an investment itself—the money inside is what earns returns.
  • You choose what to hold in your IRA: cash, savings accounts, CDs, stocks, bonds, mutual funds, or other permitted investments.
  • Interest and investment returns vary widely depending on what you choose, from nearly 0% for idle cash to double-digit returns for stock investments over time.
  • The tax advantage of an IRA is that interest and gains grow without being taxed each year, though withdrawal rules differ between Traditional and Roth IRAs.

What investments you can hold inside an IRA

Most IRA providers let you choose from a menu of options. The most common are savings accounts, money market accounts, CDs, stocks, bonds, mutual funds, and exchange-traded funds (ETFs). Some providers also offer self-directed IRAs, which let you hold real estate, private loans, or other alternative investments, though these require more hands-on management.

Savings accounts and money market accounts inside an IRA earn interest rates set by the bank. These rates change over time and vary by institution. Right now, some banks offer 4% to 5% on IRA savings accounts. CDs lock your money for a set term—three months, one year, five years—in exchange for a may provide rate, usually higher than a savings account.

Stock and bond investments do not earn interest in the traditional sense. Instead, they gain or lose value. A stock mutual fund might hold 100 different company stocks; if those companies grow and their stock prices rise, your fund grows. A bond fund holds loans to companies or governments; you earn interest on those loans, but the fund's value also changes based on interest rates. ETFs work the same way but trade like stocks throughout the day.

How tax-deferred growth works in a Traditional IRA

A Traditional IRA lets your money grow without paying taxes on interest or gains each year. If you hold a savings account earning 5% annually, you do not owe federal income tax on that 5% until you withdraw the money in retirement. If you hold stock mutual funds that gain 10% one year, you do not pay capital gains tax on that 10% that year.

This matters because taxes normally reduce your returns. If you earned 5% interest in a regular savings account and owed 24% federal tax on that interest, your real return would be closer to 3.8%. Inside a Traditional IRA, you keep the full 5% working for you year after year. Over decades, this compounding effect—earning returns on your returns—adds up significantly.

When you withdraw money from a Traditional IRA after age 59½, you pay income tax on the full amount you take out, including all the growth. If you withdraw before 59½, you typically owe income tax plus a 10% early withdrawal penalty, with some exceptions for hardship or first-time home purchase.

How tax-free growth works in a Roth IRA

A Roth IRA works differently. You contribute money that has already been taxed (you do not get a tax deduction). But then all the interest, gains, and growth inside the account are tax-free forever. When you withdraw money after age 59½ and after holding the account for at least five years, you owe no tax on any of it—not on your contributions and not on the earnings.

This makes Roth IRAs powerful for long-term growth. If you put $7,000 into a Roth IRA at age 30 and it grows to $80,000 by age 65, you withdraw all $80,000 tax-free. In a Traditional IRA, you would owe income tax on the $73,000 in gains. The longer your money sits in a Roth, the more valuable the tax-free growth becomes.

Roth IRAs also have no required withdrawals during your lifetime. A Traditional IRA requires you to start taking withdrawals (called required minimum distributions, or RMDs) at age 73. This flexibility makes Roth accounts useful if you want your money to keep growing untouched.

How to choose what earns interest in your IRA

When you open an IRA, your provider will ask you to choose where to hold your money. Some people choose a single savings account or CD for simplicity and safety. Others build a portfolio of multiple investments—perhaps 60% in stock mutual funds, 30% in bonds, and 10% in a money market account.

Your choice should depend on how long until you need the money and how comfortable you are with ups and downs. If you are 30 and will not touch the IRA for 35 years, stock investments historically perform better over long periods, even though they fluctuate year to year. If you are 60 and retiring soon, a mix of bonds and savings accounts may feel safer because you need the money sooner.

You can also change your investments over time. Many people start with more aggressive stock investments when young, then shift toward safer bonds and savings accounts as they approach retirement. Your IRA provider lets you move money between investments within the account without tax consequences.

Interest rates and returns vary by time and provider

Interest rates on savings accounts and CDs change based on what the Federal Reserve does with short-term interest rates. When the Fed raises rates, banks typically raise the rates they offer on savings accounts and CDs. When the Fed lowers rates, bank rates fall too. Right now rates are higher than they were a few years ago, but they will shift again.

Different banks offer different rates on the same type of account. One bank might offer 4.5% on an IRA savings account while another offers 5.2%. Online banks often offer higher rates than brick-and-mortar banks because they have lower overhead costs. It is worth comparing rates across a few providers before you open an IRA.

Stock and bond returns are less predictable. Historical data shows that stock mutual funds have averaged around 10% annually over very long periods (50+ years), but some years they gain 20% and other years they lose 15%. Bond returns are typically lower and more stable. Past performance does not may provide future results, and your actual returns will depend on which specific investments you choose and when you buy and sell.

What happens if you move your IRA to a different provider

If you want to move your IRA to a different bank or investment firm, you can do a rollover or transfer without losing the tax advantages. A direct transfer moves the money straight from one provider to another without it touching your hands. A rollover lets you withdraw the money and deposit it into a new IRA within 60 days. Both preserve the tax-deferred or tax-free status of your account.

You might move your IRA to get better interest rates, lower fees, or access to different investments. Some providers charge annual account fees or charge per transaction. Others charge nothing. If you are earning 4% in one IRA but could earn 5% at another bank, moving could add meaningful growth over time, especially if you have a large balance.

Frequently Asked Questions

Can I lose money in an IRA?

Yes, if you invest in stocks or bonds. If the stock market drops 20% in a year, a stock mutual fund in your IRA drops 20% too. If you hold only a savings account or CD, your balance cannot drop—you earn whatever rate the bank promises. The longer your time horizon, the more you can typically afford to take this risk.

Do I have to pick one investment or can I split my money?

You can split your money across multiple investments. Many people hold a mix—some in stocks, some in bonds, some in a savings account. This is called diversification. Your provider lets you move money between investments within the account without tax consequences.

What if interest rates drop after I open my IRA?

If you hold a savings account or money market account, the rate will drop with it. If you hold a CD, your rate is locked in for the term you chose. If you hold stocks or bonds, their values may change based on interest rates and other factors. You can move your money to a different investment or provider if rates drop elsewhere.

How often does interest get added to my IRA?

Savings accounts and money market accounts typically add interest monthly or daily, depending on the bank. CDs add interest at maturity or on a schedule you choose. Stock and bond investments do not earn interest—they gain or lose value based on market prices. You can see your balance and any interest earned in your account statement.

Can I withdraw my interest without penalty?

Not before age 59½ without consequences. If you withdraw any money from a Traditional IRA before 59½, you owe income tax on the full amount plus a 10% penalty. With a Roth IRA, you can withdraw your contributions anytime penalty-free, but earnings have the same 59½ rule. Some exceptions exist for hardship or first-time home purchase.