The choice between a Roth IRA and a Traditional IRA comes down to one question: do you expect your tax rate to be higher now, or in retirement? If higher now, Traditional's upfront tax break wins. If higher in retirement, Roth's tax-free withdrawals win. This guide compares every aspect to help you decide.
The Fundamental Tax Difference
Traditional IRA: Contributions are tax-deductible in the year you make them (subject to income limits). Your money grows tax-deferred. Withdrawals in retirement are taxed as ordinary income. You're betting your tax rate will be lower in retirement.
Roth IRA: Contributions are made with after-tax dollars — no upfront tax break. Your money grows tax-free. Qualified withdrawals in retirement are completely tax-free. You're betting your tax rate will be higher in retirement, or you value the certainty of tax-free income.
2026 Contribution Limits and Income Restrictions
| Rule | Traditional IRA | Roth IRA |
|---|---|---|
| Annual contribution limit | $7,000 ($8,000 if 50+) | $7,000 ($8,000 if 50+) |
| Income limit for full deduction | MAGI <$83,000 (single) | N/A — always no deduction |
| Income limit to contribute at all | No limit (but deduction phases out) | MAGI <$161,000 (single) |
| Age limit | None (SECURE Act removed age cap) | None |
| RMDs | Yes, starting at age 73-75 | No RMDs during owner's lifetime |
Decision Framework: Which IRA Is Right for You?
Choose Traditional IRA if: You're in your peak earning years (32%+ marginal tax bracket) and expect lower income in retirement; you need the tax deduction now to reduce your current tax bill; you don't have a workplace retirement plan (making you fully eligible for the deduction regardless of income).
Choose Roth IRA if: You're early in your career with a lower tax rate — paying taxes now at 12-22% and withdrawing tax-free later is mathematically powerful; you expect significant income growth (doctors, lawyers, tech workers); you want to leave tax-free money to heirs; you value the flexibility of withdrawing contributions (not earnings) penalty-free before retirement.
Do both if you can: The 2026 combined contribution limit of $7,000 applies across all IRAs. If you have a 401(k) at work, the most common strategy is: contribute enough to get the full employer 401(k) match, then max out a Roth IRA, then go back to max out the 401(k). This diversifies your tax exposure.
The Backdoor Roth IRA
If your income exceeds the Roth IRA limits, you can contribute to a Traditional IRA (non-deductible) and immediately convert it to a Roth IRA. This "backdoor Roth" is legal and commonly used by high earners. Key caveat: the pro-rata rule — if you have existing pre-tax Traditional IRA balances, the conversion is partially taxable. Use our retirement calculator to model different IRA contribution strategies.