The choice depends on whether you want a tax break now or tax-free withdrawals later

A traditional IRA lets you deduct contributions from your taxable income this year, lowering what you owe the IRS. You pay taxes when you withdraw the money in retirement. A Roth IRA takes contributions after tax, but withdrawals in retirement are tax-free. Neither is objectively better—the right one depends on your current tax bracket, whether you expect to earn more later, and how long you have until retirement.

If you are in a high tax bracket now and expect to be in a lower one in retirement, a traditional IRA usually makes more sense. If you are early in your career, expect your income to rise significantly, or want to avoid taxes entirely in retirement, a Roth often wins. Some people benefit from splitting contributions between both types, though contribution limits apply across both accounts combined.

Key Takeaways

  • Traditional IRA contributions reduce your taxable income this year; Roth contributions do not, but Roth withdrawals in retirement are tax-free.
  • You must have earned income to contribute to either type, and annual contribution limits are the same for both ($7,000 in 2024 for those under 50, $8,000 for those 50 and older).
  • Roth accounts have no required minimum withdrawals in retirement, while traditional IRAs force you to start withdrawing at age 73.
  • Income limits restrict who can contribute directly to a Roth; traditional IRA contributions are always allowed, though deductibility phases out if you have a workplace retirement plan.
  • You can convert a traditional IRA to a Roth later, but you will owe taxes on the amount converted in that tax year.

When a traditional IRA makes the most sense

Choose a traditional IRA if you want to lower your taxable income right now. This is most valuable if you are in your peak earning years, self-employed with variable income, or facing a year where you earned significantly more than usual. The tax deduction happens immediately—you report it on your tax return for the year you contribute.

A traditional IRA is also the only option if your income is too high for a Roth. If you earn above a certain threshold (the limits vary by filing status and change yearly), you cannot contribute directly to a Roth. A traditional IRA has no income limit for contributions, though the deduction itself phases out if you have access to a workplace retirement plan like a 401(k).

One drawback: you must start withdrawing from a traditional IRA at age 73, whether you need the money or not. These are called required minimum distributions, and the IRS penalizes you heavily if you miss them. If you plan to keep working or do not need the money, this forced withdrawal schedule can be frustrating.

When a Roth IRA makes the most sense

A Roth IRA is the better choice if you are early in your career and expect your income to climb substantially. You pay tax on contributions now at a lower rate, then withdraw everything tax-free later when you are in a higher bracket. Over decades, this can save you far more in taxes than a traditional IRA would.

Roth accounts also offer flexibility that traditional IRAs do not. You can withdraw your contributions (not the earnings) at any time without penalty, which makes a Roth useful as an emergency backup fund if you have no other savings. You can also leave the money untouched indefinitely—there are no required minimum withdrawals, so if you do not need the money in retirement, it can keep growing tax-free and eventually pass to heirs.

A Roth is especially valuable if you expect tax rates to rise in the future or if you want to minimize taxes in retirement to stay below income thresholds that affect Medicare premiums or Social Security taxation. However, you must have earned income to contribute, and if your income exceeds the annual limit for your filing status, you cannot contribute directly to a Roth.

Income limits and who qualifies

Roth IRA contributions phase out at specific income levels that depend on whether you file as single, married filing jointly, or another status. These limits change yearly. For 2024, single filers begin phasing out at $146,000 and cannot contribute at all above $161,000. Married couples filing jointly phase out between $230,000 and $240,000. If you exceed these limits, you cannot put money directly into a Roth.

Traditional IRA contributions have no income limit—anyone with earned income can contribute. However, if you have access to a workplace retirement plan (a 401(k), 403(b), or similar), the tax deduction for a traditional IRA begins to phase out at certain income levels. This means you can still contribute, but you cannot deduct it from your taxes. The phase-out ranges also vary by filing status and change yearly.

If you earn too much for a Roth but want one anyway, you have an option called a backdoor Roth. You contribute to a traditional IRA (which has no income limit), then immediately convert it to a Roth and pay taxes on the conversion. This is legal but has tax complications if you already have other traditional IRA balances, so consult a tax professional before attempting it.

Contribution limits and how they work

Both traditional and Roth IRAs share the same annual contribution limit. For 2024, you can contribute up to $7,000 if you are under 50, or $8,000 if you are 50 or older (the extra $1,000 is called a catch-up contribution). These limits apply to your combined contributions across all IRAs—if you contribute $4,000 to a traditional IRA, you can only add $3,000 to a Roth that same year.

You must have earned income at least equal to what you contribute. If you earned $5,000 last year, you cannot contribute $7,000 to an IRA. Earned income includes wages, salary, self-employment income, and some alimony, but not investment returns, rental income, or Social Security.

Contributions for a given tax year can be made until the tax filing deadline (usually April 15 of the following year). Many people wait until January to contribute, but you can actually make your 2024 contribution anytime through April 15, 2025.

Required withdrawals and flexibility in retirement

A major difference between the two accounts emerges once you retire. With a traditional IRA, you must begin taking required minimum distributions at age 73. The IRS calculates how much you must withdraw each year based on your age and account balance, and you pay income tax on every dollar withdrawn. If you do not take the full amount, the IRS charges a 25% penalty on the shortfall (reduced to 10% if you correct it within two years).

A Roth IRA has no required minimum distributions during your lifetime. You can leave the money untouched and let it grow tax-free for as long as you live. This makes a Roth valuable if you do not need the money in retirement, want to minimize your taxable income to keep Medicare premiums lower, or plan to leave the account to heirs.

After you die, heirs who inherit a Roth must withdraw the funds within 10 years, but those withdrawals are still tax-free. Heirs who inherit a traditional IRA must also withdraw within 10 years, but they owe income tax on every dollar. This is another reason a Roth can be valuable if you have substantial savings to pass on.

Converting between account types

You can convert money from a traditional IRA to a Roth IRA at any time, a process called a Roth conversion. The amount you convert is treated as taxable income in the year of conversion, so you will owe taxes on it. This strategy makes sense if you expect tax rates to rise, if you are in a low-income year, or if you want to reduce the size of your traditional IRA to lower future required minimum distributions.

Conversions are permanent—once money moves to a Roth, it stays there. Plan conversions carefully with a tax professional, because converting a large amount in a single year can push you into a higher tax bracket and trigger other tax consequences. Some people convert small amounts over several years to spread the tax hit.

You cannot undo a conversion after the tax year ends, so do not convert on a whim. However, you can convert back from a Roth to a traditional IRA if you change your mind within a specific window (this is called a recharacterization), though the rules are strict and the window is limited.

Frequently Asked Questions

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

Yes. Your combined contributions to all IRAs cannot exceed the annual limit, but you can split that limit between accounts however you want. Some people contribute to both to hedge their bets on future tax rates or to take advantage of different features each offers.

What happens if I do not have earned income but my spouse does?

You can open a spousal IRA if your spouse has earned income. Your spouse's income counts toward your contribution limit, so if your spouse earned $100,000 and you earned nothing, you can each contribute up to $7,000 (or $8,000 if over 50). You each have separate accounts.

Can I withdraw from a Roth IRA before retirement without penalty?

You can withdraw your contributions anytime without penalty. Withdrawing earnings before age 59½ usually triggers a 10% penalty plus income tax, unless you meet a narrow exception like disability, first-time home purchase (up to $10,000 lifetime), or may have access to education expenses. Contributions and earnings are tracked separately.

Which account grows faster, traditional or Roth?

Both grow at the same rate if you invest the same way. The difference is tax treatment, not growth. A Roth may feel like it grows faster because withdrawals are tax-free, but the underlying investments perform identically. The real advantage of a Roth is that you keep more of the growth because you do not owe taxes on it later.

Should I max out my 401(k) before opening an IRA?

It depends on your employer's match. If your employer matches 401(k) contributions, contribute enough to get the full match first—that is assistance programs. After that, many people prioritize an IRA because IRAs offer more investment choices and lower fees than most 401(k)s. Then return to the 401(k) if you have money left over.