IRA accounts don't earn interest the way a savings account does — they hold investments that grow for you

An IRA is a container, not an investment itself. The money inside an IRA sits in whatever you choose to put there: stocks, bonds, mutual funds, or yes, a savings account or certificate of deposit. Those things earn returns. The IRA itself is just the tax-advantaged wrapper that lets those returns grow without being taxed every year.

Think of it like a jar. The jar doesn't make money grow — the seeds you plant in the jar do. An IRA is the jar. A savings account earning 4% interest is one kind of seed. A stock mutual fund is another. You pick what goes inside, and that's what generates the growth.

The real advantage of an IRA is not that it earns more than other accounts. It's that you don't pay taxes on the growth each year, and depending on which type of IRA you have, you may not pay taxes on the money when you take it out either. That tax break lets your money compound faster over time.

Key Takeaways

  • An IRA is a container for investments, not an investment itself — the money inside earns returns based on what you choose to hold there.
  • You can hold cash, savings accounts, CDs, stocks, bonds, mutual funds, or other investments inside an IRA, and each earns differently.
  • The main benefit of an IRA is that growth is not taxed each year, allowing your money to compound without annual tax drag.
  • How much your IRA grows depends entirely on what you put in it and how those investments perform, not on the IRA account type.

What you can actually hold inside an IRA

Most banks and brokerages let you open an IRA and then choose from a menu of things to hold in it. A savings account inside an IRA might earn 4% to 5% right now, depending on the bank. That's a real return, but it's modest and fixed. A money market fund inside an IRA might earn similar rates. A CD inside an IRA locks your money for a set time in exchange for a may provide rate.

On the investment side, you can hold individual stocks, stock mutual funds, bond funds, index funds, or exchange-traded funds (ETFs). These don't have a may provide return. They go up and down based on market performance. Over long periods, stock funds have historically returned around 10% per year on average, but that's an average — some years they gain 20%, some years they lose 15%.

Some IRAs are more limited. A self-directed IRA gives you the most choice. A brokerage IRA gives you broad access to stocks and funds. A bank IRA might limit you mostly to savings accounts and CDs. When you open an IRA, the institution tells you what's available to hold there.

How the tax advantage actually works

Suppose you put $5,000 in a regular taxable brokerage account and invest it in a fund that earns 8% per year. After one year you have $5,400. You owe taxes on that $400 gain. If you're in the 22% tax bracket, you pay $88 in taxes that year. Your account is now $5,312.

Now suppose you put the same $5,000 in a Traditional IRA and invest it in the same fund. After one year you have $5,400. You owe no taxes that year. Your account stays at $5,400. That extra $88 stays in the account and earns returns next year too. Over 30 years, that small difference compounds into thousands of dollars of extra growth.

With a Roth IRA, the tax break is different but equally powerful: you pay taxes on the money going in, but then you pay zero taxes on all the growth, ever, even when you withdraw it in retirement. A Traditional IRA lets you deduct the contribution from your taxes now, but you pay taxes on withdrawals later.

The difference between may provide and variable returns

If you hold a savings account or CD inside your IRA, your return is may provide. Right now, some banks offer 4.5% to 5% on savings accounts and higher rates on CDs that lock your money for longer. You know exactly what you'll have. The tradeoff is that inflation may eat into that return — if inflation is 3% and your savings account earns 4%, your real gain is only 1%.

If you hold stocks or stock funds, your return is not may provide. The fund might earn 12% one year and lose 8% the next. Over 20 or 30 years, stock funds have historically beaten savings accounts, but there's no promise. You have to be comfortable with the ups and downs, and you have to leave the money alone long enough for the ups to outweigh the downs.

Many people split the difference: they hold some money in stable, may provide investments and some in growth-oriented investments. An IRA lets you do that. You might keep one year's worth of spending money in a savings account inside the IRA, and the rest in a stock fund.

How much your IRA will grow depends on three things

First is how much you put in. The IRS sets a limit on how much you can contribute each year — right now that's $7,000 for people under 50, though that amount changes over time. The more you contribute, the more you have working for you.

Second is what you invest in. A savings account earning 4.5% will grow slower than a stock fund earning 8% on average, but with less risk. Your choice of what to hold inside the IRA matters more than the IRA type itself.

Third is time. A $5,000 contribution earning 7% per year grows to about $27,000 in 30 years. The same contribution earning 7% per year grows to about $38,000 in 40 years. The longer your money sits, the more compound growth does the work for you. This is why starting an IRA early, even with small contributions, often beats starting late with large ones.

Why people confuse IRAs with interest-bearing accounts

Banks advertise "IRA savings accounts" and "IRA CDs" that earn a specific interest rate. That language makes it sound like the IRA itself is earning the interest. What's really happening is that you opened an IRA, and inside it you're holding a savings account or CD. The savings account earns the interest. The IRA is just the tax wrapper.

This matters because it means you have a choice. You don't have to put your IRA money in a savings account just because your bank offers one. You can take that same IRA to a brokerage and invest in funds instead. Or you can split it — some in savings, some in funds. The IRA account type (Traditional or Roth) is separate from what you hold inside it.

What happens to growth when you withdraw money

With a Traditional IRA, you pay income taxes on whatever you withdraw, whether it's your original contribution or the growth. If you withdraw before age 59½, you usually pay a 10% penalty on top of the taxes, with some exceptions for hardship.

With a Roth IRA, you can withdraw your contributions anytime tax-free. The growth stays in the account until you're 59½, and then you can withdraw it tax-free too. This makes a Roth more flexible if you need access to your money before retirement, though the whole point is to leave it alone.

The tax treatment is one reason people think carefully about what to hold inside an IRA. If you're going to hold something that generates a lot of taxable income each year — like bonds that pay interest — an IRA is a good place for it, because the IRA shields that income from taxes. If you're holding something that generates mostly long-term capital gains, a regular taxable account might work fine too.

Frequently Asked Questions

Can I move my IRA to a different bank or brokerage if I want different investments?

Yes. You can transfer an IRA from one institution to another without taxes or penalties. This is called a trustee-to-trustee transfer, and it takes a few weeks. You can also do a rollover, where you withdraw the money and deposit it elsewhere within 60 days. The trustee-to-trustee route is simpler and safer.

What if I want my IRA to earn more — should I pick riskier investments?

Riskier investments like individual stocks or growth-focused funds have historically returned more over long periods, but they also fall in value some years. The right choice depends on how long until you need the money and how comfortable you are watching your balance drop temporarily. A financial advisor can help you think through this.

Does the interest rate my IRA earns change if I move to a different bank?

If you're holding a savings account or CD inside an IRA, the rate depends on which bank you choose. Different banks offer different rates. If you move your IRA to a bank offering 5% instead of 4%, your money will earn at the higher rate going forward. Rates change over time, so it's worth checking what your current institution offers.

Can I earn interest on an IRA if I don't have a job?

You need earned income to contribute to an IRA — money from a job, self-employment, or certain other sources. If you don't have earned income, you can't contribute. However, if you already have an IRA with money in it, that money can continue to earn returns whether you're working or not.

Is there a difference in how much interest a Traditional IRA versus a Roth IRA earns?

No. Both types hold the same investments and earn the same returns. The difference is in taxes: Traditional IRA contributions may be tax-deductible now, and you pay taxes on withdrawals later. Roth contributions are not deductible, but withdrawals are tax-free. The growth itself is identical.