The core difference: when you pay taxes

A Roth IRA lets you put in after-tax money now and withdraw it tax-free later. A Traditional IRA lets you deduct contributions from your taxes now, but you pay taxes on withdrawals in retirement. The choice depends on whether you think your tax rate will be higher or lower when you retire.

If you expect to be in a lower tax bracket in retirement, a Traditional IRA saves you money: you deduct the full amount now at your current (higher) rate, then pay taxes later at a lower rate. If you expect to be in a higher tax bracket, or if you want to avoid taxes entirely in retirement, a Roth makes more sense.

Neither account is objectively "better." The right choice depends on your income now, how much you think you'll earn in retirement, and whether you want flexibility with withdrawals.

Key Takeaways

  • Roth contributions are not tax-deductible now, but may have access to withdrawals in retirement are completely tax-free; Traditional contributions reduce your taxable income this year, but withdrawals are taxed as ordinary income.
  • Roth accounts have no required withdrawals in your lifetime, while Traditional IRAs force you to take distributions starting at age 73, which can push you into a higher tax bracket.
  • Roth accounts let you withdraw contributions (not earnings) anytime without penalty; Traditional IRAs charge a 10% penalty plus income tax if you withdraw before age 59½.
  • Income limits restrict who can contribute to a Roth directly, but anyone with earned income can open a Traditional IRA regardless of how much they earn.
  • If you expect to earn significantly more in retirement or want to leave tax-assistance programs to heirs, Roth is usually the stronger choice; if you want an immediate tax deduction and expect lower retirement income, Traditional often wins.

Tax deductions and current-year savings

A Traditional IRA contribution reduces your taxable income dollar-for-dollar, up to the annual limit. 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 in federal income tax this year.

A Roth contribution gives you no deduction. You contribute after-tax money, so your taxable income stays the same. You get no immediate tax break. This matters most if you're in a high tax bracket now and want to lower your tax bill this year.

However, if your income is too high, you cannot contribute to a Roth directly. For 2024, the income phase-out for Roth contributions begins at $146,000 for single filers and $230,000 for married couples filing jointly. There is no income limit for Traditional IRA contributions, though the deduction phases out if you or your spouse has a workplace retirement plan and earn above certain thresholds.

Taxes on withdrawals in retirement

With a Traditional IRA, every dollar you withdraw is taxed as ordinary income. If you withdraw $50,000 in a year when you're in the 22% tax bracket, you owe $11,000 in federal income tax on that withdrawal alone. This can push you into a higher bracket or reduce other tax benefits you might otherwise claim.

With a Roth IRA, may have access to withdrawals are completely tax-free. You withdraw $50,000 and owe nothing in federal income tax. This matters most if you expect to have substantial retirement income from other sources (Social Security, pensions, investment accounts) and want to avoid being pushed into a higher tax bracket.

A may have access to Roth withdrawal requires that the account has been open for at least five tax years and you are age 59½, disabled, deceased, or withdrawing up to $10,000 for a first home purchase. If you withdraw earnings before meeting these conditions, you pay income tax plus a 10% penalty on the earnings portion.

Required withdrawals and account flexibility

Starting at age 73, you must take required minimum distributions (RMDs) from a Traditional IRA. The IRS calculates the minimum based on your age and account balance. If you don't take it, you face a 25% penalty on the amount you should have withdrawn (10% if you correct it within two years). These forced withdrawals can push you into a higher tax bracket or reduce your Social Security benefits.

Roth IRAs have no required withdrawals during your lifetime. You can leave the money untouched for decades if you don't need it, and it continues to grow tax-free. This is a major advantage if you want to minimize taxable income in retirement or leave a large tax-free inheritance.

Roth accounts also let you withdraw your contributions (not earnings) anytime without penalty or tax. If you contributed $50,000 over the years and the account grew to $70,000, you can withdraw the $50,000 contribution whenever you want. This gives you emergency access to your money without the 10% early-withdrawal penalty that applies to Traditional IRAs before age 59½.

Income limits and who can contribute

Anyone with earned income can open and contribute to a Traditional IRA, regardless of how much they earn. However, if you or your spouse has a workplace retirement plan (401(k), 403(b), or similar), the deduction phases out at higher incomes. For 2024, the phase-out for single filers with a workplace plan begins at $77,000 and ends at $87,000. For married couples filing jointly, it begins at $123,000 and ends at $143,000.

Roth contributions are restricted by income. For 2024, single filers can contribute the full amount only if their modified adjusted gross income is below $146,000. The ability to contribute phases out between $146,000 and $161,000. For married couples filing jointly, the phase-out is $230,000 to $240,000. Above these limits, you cannot contribute to a Roth directly, though you may be able to use a backdoor Roth strategy (converting a Traditional IRA to a Roth).

Which choice matches your situation

Choose a Traditional IRA if: you want an immediate tax deduction to lower your tax bill this year; you expect to earn significantly less in retirement than you do now; you're in a high tax bracket now and want to reduce taxable income; or you have no workplace retirement plan and want to maximize deductions.

Choose a Roth IRA if: you expect to earn the same or more in retirement; you want complete tax-free withdrawals in retirement; you want to avoid required minimum distributions; you want flexibility to withdraw contributions anytime; you want to leave tax-assistance programs to heirs; or you're early in your career and expect your income to rise significantly over time.

You can also split the difference: contribute to both accounts in the same year, as long as your total contributions don't exceed the annual limit ($7,000 for 2024 if you're under 50; $8,000 if you're 50 or older). Some people use a Traditional IRA for the immediate deduction and a Roth for tax-free growth, depending on their income and tax situation each year.

Frequently Asked Questions

Can I convert a Traditional IRA to a Roth?

Yes. You can convert all or part of a Traditional IRA to a Roth anytime. You'll owe income tax on the amount converted (based on the pre-tax balance), but once it's in the Roth, it grows tax-free. This is useful if you expect your tax rate to drop in a particular year or if you want to move money into a Roth before you reach age 73 and face required withdrawals.

What happens to my IRA when I die?

Beneficiaries inherit the account, but the tax treatment differs. Traditional IRA beneficiaries must take distributions and pay income tax on them. Roth IRA beneficiaries can withdraw the money tax-free (if the account met the five-year rule), making a Roth a better choice if leaving money to heirs is a goal. Spouses have more flexibility than non-spouse beneficiaries.

Can I have both a Roth and a Traditional IRA?

Yes, but your total contributions across both accounts cannot exceed the annual limit. If you contribute $4,000 to a Traditional IRA, you can contribute only $3,000 to a Roth that same year (assuming the $7,000 limit for 2024). You can split contributions however you want, as long as the total doesn't exceed the limit.

What if my income is too high for a Roth?

You can use a backdoor Roth: contribute to a Traditional IRA (which has no income limit), then immediately convert it to a Roth. You'll owe taxes on any pre-tax balance in Traditional IRAs, but this strategy lets high earners fund a Roth. Consult a tax professional before attempting this, as the rules are complex.

Which account grows faster?

Both grow at the same rate — the difference is taxes, not growth. The real question is which account leaves you with more money after taxes. A Roth usually wins if you expect higher taxes in retirement; a Traditional usually wins if you expect lower taxes in retirement.