The choice depends on your tax bracket now versus what you expect in retirement

A Roth IRA and a traditional IRA are fundamentally different in when you pay taxes. With a Roth, you contribute money you've already paid income tax on, and withdrawals in retirement are tax-free. With a traditional IRA, you may deduct contributions from your taxable income now, but you pay income tax on withdrawals later. Neither is universally "better"—the right choice depends on whether you think your tax rate will be higher or lower when you retire.

If you're in a lower tax bracket now and expect to be in a higher one in retirement, a Roth usually makes more sense: you lock in today's lower tax rate. If you're in a high bracket now and expect to be in a lower one in retirement, a traditional IRA usually saves you more money: you deduct the contribution at your current high rate and pay tax at a lower rate later. The catch is that nobody knows future tax rates with certainty, so the decision often comes down to your best guess and your current financial situation.

Key Takeaways

  • Roth contributions are made with after-tax money, but may have access to withdrawals in retirement are completely tax-free.
  • Traditional IRA contributions may reduce your taxable income this year, but you pay ordinary income tax on all withdrawals in retirement.
  • Roth IRAs have no required minimum distributions during your lifetime, while traditional IRAs require you to start withdrawing at age 73.
  • You can withdraw Roth contributions (not earnings) at any time without penalty, but traditional IRA early withdrawals before age 59½ usually trigger a 10% penalty plus income tax.
  • Income limits restrict who can contribute to a Roth, but there are no income limits for traditional IRA contributions.

How taxes work in each account type

With a traditional IRA, you contribute pre-tax dollars. If you have no workplace retirement plan (like a 401(k)), you can deduct the full contribution amount from your taxable income for that year. If you do have a workplace plan, the deduction phases out based on your income. When you withdraw money in retirement, every dollar comes out as ordinary income and is taxed at your current rate.

With a Roth IRA, you contribute money you've already paid income tax on. You get no tax deduction now. But when you withdraw in retirement—as long as the account has been open at least five years and you're at least 59½—you owe no federal income tax on any of it, including the growth. This is the core advantage: tax-free growth and tax-free withdrawals.

The math works out differently depending on your situation. If you're 30 years old, in the 22% tax bracket, and expect to be in the 24% bracket at 65, a Roth saves you money because you lock in the 22% rate now. If you're 55, in the 32% bracket, and expect to be in the 12% bracket at 70, a traditional IRA saves you money because you deduct at 32% now and pay 12% later.

Required withdrawals and access to your money

A traditional IRA requires you to start taking withdrawals at age 73 (as of 2023; this age has been rising gradually). The IRS calculates a minimum amount based on your age and account balance, and you must withdraw at least that amount each year. These withdrawals are taxed as ordinary income. If you don't take the required amount, you face a 25% penalty on the shortfall (reduced to 10% if corrected within two years).

A Roth IRA has no required minimum distributions during your lifetime. You can leave the money untouched for as long as you want, and it continues to grow tax-free. This makes a Roth useful if you don't need the money in retirement or want to leave it to heirs. Your heirs will owe income tax on earnings they withdraw, but the account itself offers tax advantages across generations.

For early access, the accounts differ sharply. You can withdraw Roth contributions (the money you put in, not the growth) at any time, for any reason, with no tax or penalty. You cannot do this with a traditional IRA—early withdrawals before 59½ trigger both income tax and a 10% penalty, with limited exceptions like disability or medical expenses. This makes a Roth more flexible if you're uncertain whether you'll need the money before retirement.

Income limits and who can contribute

Anyone with earned income can contribute to a traditional IRA, regardless of how much money they make. However, the tax deduction phases out if you have a workplace retirement plan and your income exceeds certain thresholds. In 2024, for a single filer with a 401(k) at work, the deduction begins to phase out at $77,000 and disappears at $87,000. These numbers are higher for married couples and change each year.

A Roth IRA has strict income limits. In 2024, for a single filer, you can contribute the full amount if your income is below $146,000. The contribution phases out between $146,000 and $161,000, and you cannot contribute at all above $161,000. For married couples filing jointly, the limits are higher but still apply. These limits also change annually.

If your income exceeds the Roth limit, you have an alternative called a backdoor Roth: you contribute to a traditional IRA (which has no income limit), then convert it to a Roth. This is legal but has tax complications if you already have other traditional IRAs. Consult a tax professional before attempting this strategy.

Contribution limits and catch-up rules

Both account types have the same annual contribution limit: $7,000 in 2024 (or $8,000 if you're 50 or older). This limit applies to the combined total across all your IRAs—if you contribute $4,000 to a traditional IRA, you can only contribute $3,000 to a Roth that year. The limit increases periodically to keep pace with inflation.

If you're 50 or older, you can contribute an additional $1,000 as a "catch-up" contribution, bringing your total to $8,000. This applies to both traditional and Roth accounts. You must have earned income at least equal to what you contribute, so you cannot contribute more than you earned that year.

Scenarios where each account makes sense

Choose a Roth if: You're young and expect to be in a higher tax bracket later. You want tax-free withdrawals and flexibility to access contributions early. You don't want required minimum distributions. You want to leave money to heirs with tax advantages. You're in a lower tax bracket this year than you expect to be in retirement.

Choose a traditional IRA if: You're in a high tax bracket now and expect to be in a lower one in retirement. You want to reduce your taxable income this year. You have a workplace retirement plan and want to maximize tax deductions. You expect your overall retirement income to be modest. You want to defer taxes as long as possible.

Many people use both: a traditional IRA for the immediate tax deduction and a Roth for tax-free growth. You can split your contribution between them as long as the total doesn't exceed the annual limit. Some people also have both because they rolled a 401(k) into a traditional IRA and later opened a Roth.

What happens to your money after you die

Beneficiaries who inherit a traditional IRA must pay income tax on withdrawals, but they have flexibility in timing. Spouses can roll the account into their own IRA and delay withdrawals. Non-spouse beneficiaries must withdraw the entire balance within 10 years (as of 2023 rules), though they can spread withdrawals across those years to manage their tax bill.

Beneficiaries who inherit a Roth IRA also must withdraw within 10 years, but may have access to withdrawals are tax-free. This makes a Roth a powerful wealth-transfer tool: you pay tax on the contribution now, but your heirs inherit tax-free growth. For this reason, many financial advisors recommend prioritizing Roth contributions if you have the income to support them and don't need the tax deduction now.

Frequently Asked Questions

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

Yes. You can split your annual contribution between them, as long as the total doesn't exceed the limit ($7,000 in 2024, or $8,000 if you're 50+). Many people do this to get some immediate tax relief from a traditional contribution and some tax-free growth from a Roth. Keep in mind that if you have a workplace 401(k), the traditional IRA deduction may be limited based on your income.

What if I change my mind and want to switch from one to the other?

You can convert a traditional IRA to a Roth, but you'll owe income tax on the pre-tax money you convert. You can also recharacterize (undo) a contribution within your tax filing deadline, though this is less common now. Consult a tax professional before converting, because the tax bill can be substantial and may push you into a higher bracket that year.

Which account should I fund first if I can only contribute to one?

If your income is below the Roth limit and you're young, prioritize the Roth for tax-free growth over decades. If you're older, in a high tax bracket, or expect lower income in retirement, prioritize the traditional IRA for the immediate deduction. If you have a workplace 401(k) with an employer match, fund that first—the match is assistance programs.

Do I have to use the same type of IRA every year?

No. You can contribute to a traditional IRA one year and a Roth the next, or split between them. Your choice can change based on your income, tax bracket, and retirement outlook. Just remember that the annual limit applies across all your IRAs combined, regardless of type.

What if my income is too high for a Roth but I want one anyway?

A backdoor Roth lets you contribute to a traditional IRA and immediately convert it to a Roth. You'll owe tax on any growth between contribution and conversion, but the strategy works. However, if you have other traditional IRAs with pre-tax money, the conversion triggers tax on a portion of that balance too. This gets complicated—work with a tax professional before attempting it.