The Core Difference: When You Pay Taxes

A traditional IRA lets you deduct contributions from your income taxes now, but you pay income tax on the money when you withdraw it in retirement. A Roth IRA takes the opposite approach: you contribute money that has already been taxed, and then withdrawals in retirement are tax-free. The choice between them hinges on whether you think your tax rate will be higher or lower in retirement than it is today.

Both are individual retirement accounts that let you save money with tax advantages. Both have annual contribution limits (the same limit applies to each type). The difference is the timing of the tax benefit — now or later. Neither one is universally "better"; which one makes sense depends on your income, your age, and your guess about future tax rates.

Key Takeaways

  • Traditional IRA contributions may reduce your taxable income this year, but withdrawals in retirement are taxed as ordinary income.
  • Roth IRA contributions are made with after-tax money, so withdrawals in retirement and the growth on your money are completely tax-free.
  • A Roth IRA has no required withdrawals at any age, while a traditional IRA requires you to start taking withdrawals at age 73.
  • Income limits restrict who can contribute to a Roth IRA, but there are no income limits for a traditional IRA.
  • You can withdraw your Roth contributions (not the earnings) at any time without penalty, while traditional IRA withdrawals before age 59½ usually trigger a 10% penalty plus income tax.

How Contributions Work and Tax Deductions

With a traditional IRA, you can deduct your contribution from your taxable income in the year you make it — but only if you meet certain conditions. If you or your spouse has a workplace retirement plan (like a 401(k)), the deduction phases out at higher income levels. If neither of you has a workplace plan, you can deduct the full amount, no matter your income.

With a Roth IRA, there is no deduction. You contribute money you have already paid income tax on. In exchange, you get the tax-free growth and withdrawals later. However, you can only contribute to a Roth if your income falls below a certain threshold. For 2024, single filers begin to lose the ability to contribute at $146,000 in modified adjusted gross income, and married couples filing jointly at $230,000. These limits change each year.

Withdrawals and Penalties Before Retirement

A traditional IRA penalizes early withdrawal. If you take money out before age 59½, you owe a 10% penalty on top of ordinary income tax on the amount withdrawn. There are some exceptions — disability, medical expenses above a threshold, and a few others — but they are narrow and require documentation.

A Roth IRA is more flexible. You can withdraw your contributions (the money you put in) at any time, tax-free and penalty-free. You cannot withdraw the earnings (the growth on your money) before age 59½ without a 10% penalty and income tax, unless an exception applies. This flexibility makes a Roth useful if you think you might need access to your savings before traditional retirement age.

Required Withdrawals in Retirement

A traditional IRA requires you to start taking withdrawals at age 73. The IRS calculates a minimum amount based on your age and account balance, and you must withdraw at least that much each year. If you do not, you face a 25% penalty on the amount you should have withdrawn (reduced to 10% if you correct it within two years). This rule exists because the government wants to collect the taxes it deferred when you made your contributions.

A Roth IRA has no required withdrawals 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 do not need the money in retirement or want to pass it to heirs. Your heirs will inherit the account, though they will have different withdrawal rules depending on their relationship to you.

Income Limits and Who Can Contribute

There are no income limits for a traditional IRA. Anyone with earned income can open one and contribute. However, if you or your spouse has access to a workplace retirement plan, your ability to deduct the contribution phases out at higher incomes. This means you can still contribute, but you may not get the tax deduction.

A Roth IRA has strict income limits. If your modified adjusted gross income exceeds the threshold for your filing status, you cannot contribute directly to a Roth. For 2024, the phase-out range for single filers is $146,000 to $161,000, and for married couples filing jointly it is $230,000 to $240,000. These limits increase slightly each year. If your income is too high, you may still be able to use a "backdoor Roth" strategy, which involves contributing to a traditional IRA and then converting it to a Roth, though this has tax complications if you have other traditional IRA balances.

Investment Options and Account Growth

Both traditional and Roth IRAs allow you to invest in stocks, bonds, mutual funds, exchange-traded funds, and other securities. The investment options are the same; the difference is the tax treatment of the growth. In a traditional IRA, the growth is tax-deferred — you do not pay tax on gains until you withdraw. In a Roth IRA, the growth is tax-free — you never pay tax on gains, even in retirement.

Over decades, this difference compounds. If you invest $7,000 a year for 30 years and earn an average 7% annual return, the tax-free growth in a Roth can be substantially larger than the after-tax value of a traditional IRA, especially if tax rates rise. However, this assumes you do not need the money before retirement and can afford to leave it invested for the full time period.

Conversions and Changing Your Mind

You can convert money from a traditional IRA to a Roth IRA at any time. When you do, you owe income tax on the amount converted in that tax year. This is called a "Roth conversion." Some people use this strategy to move money into a Roth when their income is temporarily low, or to spread conversions over several years to manage the tax hit.

You can also recharacterize a contribution — meaning you can undo it and move the money to a different type of IRA. However, recharacterization rules are complex and have strict deadlines. If you think you made a mistake with a contribution, speak with a tax professional or financial advisor before taking action.

Frequently Asked Questions

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

Yes. Your total contribution across all IRAs cannot exceed the annual limit, but you can split that limit between a traditional IRA and a Roth IRA however you want. For example, you could contribute $4,000 to a traditional IRA and $3,000 to a Roth in the same year, as long as your total does not exceed the limit.

Which one should I choose if I am young and just starting out?

A Roth is often a good choice for younger people because you have decades for tax-free growth, and your current tax rate is likely lower than it will be in retirement. However, if you are in a high tax bracket now and expect to be in a lower one later, a traditional IRA may save you more money overall. Consider your current income and your best guess about your retirement income.

What happens to my IRA if I die?

Your IRA passes to your designated beneficiary outside of probate. The beneficiary's withdrawal options depend on their relationship to you and the type of IRA. Spouses can treat the IRA as their own; non-spouse beneficiaries must generally withdraw the balance within 10 years. A Roth IRA is often better for leaving to heirs because the withdrawals are tax-free.

Can I withdraw from my Roth IRA if I lose my job?

You can withdraw your contributions anytime without penalty. You can also withdraw earnings penalty-free if you meet specific hardship conditions, such as disability or unreimbursed medical expenses. However, you will owe income tax on the earnings portion. A traditional IRA has a hardship exception for certain medical and educational expenses, but the rules are strict.

Do I need to report my IRA on my taxes?

Yes. For a traditional IRA, you report the deduction on your tax return. For a Roth IRA, you do not claim a deduction, but you may need to report contributions if your income is above certain thresholds. Both types require you to report distributions. Keep records of all contributions and withdrawals.