An IRA lets you save for retirement while reducing what you owe in taxes right now, and your money grows without being taxed each year until you withdraw it

The core benefit of an Individual Retirement Account (IRA) is a two-part advantage: you get a tax break on money you put in, and the money inside grows without triggering taxes every year. That second part — called tax-deferred growth — is what separates an IRA from a regular savings account. In a savings account, you pay income tax on interest the moment you earn it. In an IRA, that interest compounds year after year without being taxed until you take the money out in retirement.

The tax break on contributions works differently depending on which type of IRA you have. With a Traditional IRA, you may deduct what you contribute from your income taxes in the year you make the deposit, which lowers your taxable income. With a Roth IRA, you do not get that immediate deduction, but withdrawals in retirement are tax-free. Both approaches save you money — one upfront, one later.

Key Takeaways

  • An IRA allows your savings to grow without being taxed each year, which means compound growth works faster than in a regular savings account.
  • A Traditional IRA may reduce your taxable income in the year you contribute, lowering what you owe in taxes right now.
  • A Roth IRA charges no tax on withdrawals in retirement, which protects you if tax rates rise in the future.
  • IRAs have annual contribution limits (currently $7,000 for those under 50), so they work best paired with other retirement savings like a 401(k).

How tax-deferred growth compounds faster than taxable savings

When money sits in a regular savings account or taxable investment account, you pay income tax on the earnings each year. That means less money stays in the account to earn interest the next year. In an IRA, all earnings stay inside the account and compound without annual tax drains.

Over decades, this difference becomes substantial. A $10,000 deposit earning 5 percent annually will grow differently depending on whether taxes take a slice each year. The longer the money sits, the more the tax-deferred compounding advantage compounds itself. This is why IRAs are most powerful when you start young and leave the money untouched for 30 or 40 years.

Traditional IRA: immediate tax deduction, taxes paid later

A Traditional IRA reduces your taxable income in the year you contribute. If you earn $60,000 and contribute $7,000 to a Traditional IRA, your taxable income drops to $53,000. That means you owe less federal income tax that year — the amount depends on your tax bracket.

The trade-off is that when you withdraw money in retirement, those withdrawals are taxed as ordinary income. This works well if you expect to be in a lower tax bracket in retirement than you are now, which is true for many people. It also works well if you want to reduce your taxable income this year because you had a high-earning year or received a bonus.

Roth IRA: no tax break now, tax-free withdrawals later

A Roth IRA does not lower your taxable income when you contribute. You pay income tax on the money before it goes in, just as you would with a regular savings account. The benefit comes later: when you withdraw money in retirement, none of it is taxed, including all the growth.

A Roth IRA protects you against future tax increases. If tax rates rise between now and retirement, your withdrawals are still tax-free. A Roth also gives you more flexibility — you can withdraw your contributions (not the earnings) before retirement without penalty if you need the money, though this defeats the purpose of saving for retirement. Roth IRAs also have no required withdrawals at a certain age, so you can let the money keep growing if you do not need it.

Contribution limits and how they fit with other retirement savings

The IRS sets an annual limit on how much you can contribute to an IRA. For 2024, that limit is $7,000 if you are under age 50, and $8,000 if you are 50 or older. This limit applies across all your IRAs combined — you cannot put $7,000 in a Traditional IRA and another $7,000 in a Roth IRA in the same year.

Because the limit is relatively modest, an IRA works best alongside other retirement savings. If your employer offers a 401(k), you can contribute to both in the same year. Many people max out their 401(k) first (the limit is much higher), then use an IRA to save additional money. Self-employed people and small-business owners can use a SEP IRA or Solo 401(k), which allow much larger contributions.

Who benefits most from an IRA

An IRA is most useful if you do not have access to an employer 401(k) or if your employer does not match contributions. It is also valuable if you are self-employed or a freelancer with no retirement plan at all. For high earners, a Roth IRA becomes valuable because it is one of the few ways to save money that will never be taxed again, regardless of how much you earn.

Young people benefit enormously from IRAs because they have the most time for compound growth to work. Someone who opens an IRA at 25 and contributes $7,000 per year for 40 years will have far more money at retirement than someone who starts at 45, even if both contribute the same total amount. The extra 20 years of tax-deferred growth makes an enormous difference.

The penalty for withdrawing money before retirement

IRAs are designed to keep money locked away until age 59½. If you withdraw earnings before that age, you owe income tax on the withdrawal plus a 10 percent penalty. This penalty is steep and is meant to discourage early withdrawal.

There are narrow exceptions — you can withdraw without penalty for a first home purchase (up to $10,000 lifetime), certain medical expenses, or disability — but these are limited. The penalty is one reason to keep an IRA separate from your emergency fund. An IRA should hold money you genuinely will not need for decades.

Frequently Asked Questions

Can I have both a Traditional IRA and a Roth IRA at the same time?

Yes, but your total contributions across both accounts cannot exceed the annual limit. If you contribute $4,000 to a Traditional IRA, you can only contribute $3,000 to a Roth that same year (assuming the limit is $7,000). Many people use both — a Traditional IRA for the immediate tax deduction and a Roth for tax-free growth.

What happens to my IRA if I change jobs?

Your IRA stays yours regardless of your job. If your new employer offers a 401(k), you can keep the IRA separate and contribute to both. You can also roll over a 401(k) from your old job into an IRA, which consolidates your retirement savings in one place and often gives you more investment choices.

Do I have to withdraw money from my IRA at a certain age?

With a Traditional IRA, yes — you must start taking required minimum distributions at age 73 (as of 2023). With a Roth IRA, no — you can leave the money untouched for your entire life. This is another reason some people prefer Roths if they do not need the retirement income immediately.

What if my income is too high to contribute to a Roth IRA?

Roth IRAs have income limits that phase out contributions for high earners. If you exceed the limit, you cannot contribute directly to a Roth. Some people use a "backdoor Roth" strategy, where they contribute to a Traditional IRA and then convert it to a Roth, though this has tax implications you should discuss with a tax professional.