Roth IRA contributions are after-tax, but withdrawals in retirement are tax-free. Traditional IRA contributions may be tax-deductible now, but you pay taxes on withdrawals. If you expect a higher tax rate in retirement, Roth wins. If you need the deduction today, Traditional may be better.
What Is a Roth IRA?
A Roth IRA is a retirement account funded with after-tax dollars. You don't get a tax break when you contribute, but your money grows tax-free and qualified withdrawals in retirement are completely tax-free. There are income limits for eligibility: in 2025, single filers earning above $165,000 (MAGI) see reduced contribution limits, and those above $180,000 cannot contribute directly.
The 2025 contribution limit is $7,000 per year ($8,000 if you're 50 or older). There are no required minimum distributions (RMDs) during the account holder's lifetime, making Roth IRAs excellent for estate planning.
What Is a Traditional IRA?
A Traditional IRA lets you contribute pre-tax dollars (or take a tax deduction on your contribution if you qualify). Your money grows tax-deferred, meaning you pay ordinary income tax on withdrawals in retirement. If you're covered by a workplace plan, the deduction phases out at higher incomes.
The same $7,000/$8,000 limit applies. Unlike a Roth, you must begin taking required minimum distributions (RMDs) at age 73, which can push you into a higher bracket in retirement.
Side-by-Side Comparison
| Feature | Roth IRA | Traditional IRA |
|---|---|---|
| Tax on contributions | After-tax (no deduction) | Tax-deductible (if eligible) |
| Tax on withdrawals | Tax-free | Taxed as ordinary income |
| 2025 contribution limit | $7,000 ($8,000 age 50+) | $7,000 ($8,000 age 50+) |
| Income limits | Yes (phase-out $150K-$165K single) | No income limit to contribute |
| Required minimum distributions | None during owner's lifetime | Required at age 73 |
| Early withdrawal penalty | Contributions: no penalty; Earnings: 10% | 10% penalty before 59½ |
| Best for tax bracket | Expect higher taxes in retirement | Expect lower taxes in retirement |
| Estate planning | No RMDs = more for heirs | RMDs reduce balance over time |
When to Choose Roth vs Traditional
- You're early in your career with a lower income
- You expect tax rates to rise by retirement
- You want tax-free income in retirement
- You don't want to be forced to take RMDs
- You want flexibility to withdraw contributions anytime
- You're in a high tax bracket now and need the deduction
- You expect to be in a lower bracket in retirement
- You're not covered by a workplace retirement plan
- You want to reduce this year's taxable income
- You're close to retirement with limited time for tax-free growth
Real-World Example
Sarah earns $65,000 and contributes $7,000/year for 30 years at 8% average return. Her balance grows to approximately $794,000.
Roth IRA: She paid taxes on her contributions upfront. The entire $794,000 is tax-free in retirement.
Traditional IRA: She deducted $7,000/year (saving ~$1,540/year in the 22% bracket). But at withdrawal, if she's in the 22% bracket, she owes ~$174,680 in taxes on the full amount. Net: ~$619,320.
In this scenario, the Roth IRA wins by about $175,000 — assuming the same tax bracket. If Sarah drops to 12% in retirement, Traditional wins.
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Frequently Asked Questions
Can I have both a Roth and Traditional IRA?
Yes, you can contribute to both in the same year, but the combined total cannot exceed $7,000 ($8,000 if 50+) across all your IRAs.
What is the backdoor Roth IRA?
High earners who exceed Roth income limits can contribute to a Traditional IRA (non-deductible) and then convert it to a Roth. This is called a backdoor Roth conversion and is legal under current tax law.
When can I withdraw from a Roth IRA without penalty?
You can withdraw your contributions (not earnings) at any time without penalty or taxes. Earnings can be withdrawn tax-free after age 59½ if the account has been open for at least 5 years.
Do Roth IRA conversions make sense?
Converting a Traditional IRA to Roth can make sense in low-income years, early retirement, or when you expect future tax rates to be higher. You pay taxes on the converted amount in the year of conversion.
Which IRA is better for young investors?
Generally, a Roth IRA is better for young investors because they are likely in a low tax bracket now and have decades for tax-free growth. The tax savings compound significantly over 30+ years.