The choice depends on whether you want to save taxes now or in retirement

A traditional IRA lets you deduct contributions from your taxable income this year, lowering what you owe to the IRS today. You pay income tax on the money when you withdraw it in retirement. A Roth IRA takes the opposite approach: you contribute after-tax dollars now (no deduction), but withdrawals in retirement are tax-free.

Neither is universally "better." The right choice hinges on whether your tax rate is higher now or likely to be higher later, whether you expect to need the money before retirement, and whether your income is high enough that a traditional IRA deduction phases out for you.

Key Takeaways

  • Traditional IRAs give you a tax deduction immediately if you are not covered by an employer retirement plan, or if your income is below the phase-out range for your filing status.
  • Roth IRAs have no income limits for contributions, but you cannot deduct the contribution, and you must have earned income to contribute at all.
  • Roth withdrawals are tax-free in retirement if the account is at least five years old and you are 59½ or older, while traditional IRA withdrawals are taxed as ordinary income.
  • You can withdraw Roth contributions (not earnings) at any time without penalty, making a Roth useful as an emergency backup, while traditional IRA early withdrawals trigger a 10% penalty plus income tax.
  • If your income is too high to deduct a traditional IRA contribution, a Roth becomes the only way to fund an IRA directly.

When a traditional IRA makes sense

Choose a traditional IRA if you want to lower your taxable income this year and expect to be in a lower tax bracket in retirement. This is most common for people in their peak earning years who plan to retire and live on less income.

You get a full deduction if you are not covered by an employer 401(k), 403(b), or similar plan. If you are covered by an employer plan, the deduction phases out based on your modified adjusted gross income (MAGI). For 2024, the phase-out range for single filers is $77,000 to $87,000; for married filing jointly, it is $123,000 to $143,000. These ranges change each year. If your income falls within the phase-out range, you can deduct part of your contribution. Above the range, you cannot deduct it at all.

Traditional IRAs also require you to start taking withdrawals at age 73 (as of 2023, under the SECURE 2.0 Act). These are called required minimum distributions, or RMDs. The IRS calculates the amount based on your age and account balance. If you do not take the full RMD, you owe a 25% penalty on the shortfall (reduced to 10% if you correct it within two years).

When a Roth IRA makes sense

Choose a Roth IRA if you expect to be in a higher tax bracket in retirement, or if you simply want tax-free growth and withdrawals. Roth IRAs have no income limits for contributions—anyone with earned income can open one, no matter how much they earn.

The Roth is especially valuable if you are young, in a low tax bracket now, or expect significant investment growth. Because you pay tax on the contribution upfront, decades of tax-free compounding can save you far more than a traditional IRA deduction would. A Roth also has no RMDs during your lifetime, so your money can keep growing untouched if you do not need it.

Roth IRAs also offer flexibility: you can withdraw your contributions (the money you put in) at any time, tax-free and penalty-free. Only the earnings are locked until age 59½. This makes a Roth a useful secondary emergency fund if your primary savings are tied up elsewhere.

Income limits and the backdoor Roth strategy

Roth contributions phase out based on MAGI. For 2024, single filers cannot contribute if their MAGI exceeds $161,000; married filing jointly cannot contribute above $240,000. These limits rise each year.

If your income is too high to contribute directly to a Roth, 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 income tax on the conversion. This is legal and widely used by high-income earners, but it requires careful attention to the "pro-rata rule." If you already have other traditional IRAs with pre-tax money in them, the IRS taxes a portion of your conversion based on the ratio of pre-tax to after-tax money across all your traditional IRAs. Consult a tax professional before attempting a backdoor Roth if you have existing traditional IRA balances.

Tax treatment of withdrawals and early withdrawal penalties

Traditional IRA withdrawals are taxed as ordinary income at your marginal tax rate in the year you withdraw. If you withdraw before age 59½, you also owe a 10% early withdrawal penalty on top of income tax, unless an exception applies (disability, medical expenses above 7.5% of adjusted gross income, or a few others).

Roth withdrawals are tax-free if the account has been open for at least five years and you are 59½ or older. If you withdraw earnings before meeting both conditions, those earnings are taxed as ordinary income plus the 10% penalty. Contributions can always come out tax and penalty-free.

Contribution limits and catch-up contributions

Both traditional and Roth IRAs have the same annual contribution limit: $7,000 for 2024 (or $8,000 if you are 50 or older, using the catch-up provision). These limits apply across all your IRAs combined—if you contribute $4,000 to a traditional IRA, you can only contribute $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 that year, you cannot contribute $7,000 to an IRA. Spousal IRAs are an exception: a non-working spouse can contribute based on the working spouse's earned income, as long as you file jointly.

Converting between traditional and Roth

You can convert a traditional IRA to a Roth at any time. The conversion is treated as a withdrawal from the traditional IRA and a contribution to the Roth. You owe income tax on any pre-tax money converted, but no 10% penalty (even if you are under 59½). After the conversion, that money grows tax-free in the Roth.

Conversions are useful if you expect tax rates to rise, or if you want to move money into a tax-free account while you are in a lower-income year (such as after retirement but before RMDs begin). However, large conversions can push you into a higher tax bracket that year, so timing matters. A tax professional can model whether a conversion makes sense for your situation.

Frequently Asked Questions

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

Yes. Your contribution limit applies across all IRAs combined, so if you have both, the $7,000 annual limit is split between them however you choose. Many people use both: a traditional IRA for the immediate tax deduction and a Roth for tax-free growth.

What happens to my IRA when I die?

Your beneficiary inherits the IRA and must withdraw the balance according to rules based on their relationship to you and the account type. Spouses can roll the IRA into their own name. Non-spouse beneficiaries must generally empty the account within 10 years (under current SECURE Act rules). Roth IRAs are often better for heirs because withdrawals are tax-free.

Can I deduct a traditional IRA contribution if I have a 401(k) at work?

Only if your income is below the phase-out range for your filing status. For 2024, single filers with a workplace plan can deduct a traditional IRA contribution only if their MAGI is below $77,000. Above that, the deduction phases out and disappears at $87,000. Married filing jointly have a higher range: $123,000 to $143,000.

Is there a penalty for not using my Roth IRA?

No. Roth IRAs have no required minimum distributions during your lifetime, so you can leave the money untouched as long as you want. This makes them useful for leaving a tax-free inheritance or for people who do not need the money in retirement.

What if I made a mistake on my IRA contribution?

If you over-contributed, you can withdraw the excess and any earnings on it before your tax filing deadline (including extensions). You will owe income tax on the earnings but not the 10% penalty. If you do not correct it, you owe a 6% excise tax each year the excess sits in the account.