Both Roth and traditional IRAs let your investments grow without yearly taxes on dividends or gains. The difference is when you pay income tax. That’s really it. Everything else — the rules, the limits, the fine print — follows from that one choice.
The core difference
- Traditional IRA: contributions may be tax-deductible now. You pay income tax when you withdraw in retirement.
- Roth IRA: you contribute money you’ve already paid tax on. Qualified withdrawals in retirement, including all the growth, are tax-free.
So the decision boils down to a guess: will your tax rate be higher now, or in retirement?
Contribution limits
For 2026, you can contribute up to $7,500 across all your IRAs combined, plus a $1,100 catch-up if you’re 50 or older. You need earned income at least equal to what you contribute (a non-working spouse can contribute based on the working spouse’s income). Check the IRS contribution limits page each year, since these numbers are adjusted for inflation.
The income rules that catch people
Roth IRA: your ability to contribute phases out at higher incomes. Above the limit, you can’t contribute directly.
Traditional IRA: anyone with earned income can contribute, but if you (or your spouse) have a workplace retirement plan, the deduction phases out at certain income levels. You can still contribute; you just might not get the upfront tax break.
The phase-out ranges change every year, so look them up for your filing status before you contribute.
When a Roth often makes more sense
- You’re early in your career and in a lower bracket than you expect to be later.
- You want flexibility. You can withdraw your Roth contributions (not earnings) at any time without tax or penalty.
- You value tax diversification — having some money you can pull out tax-free gives you options in retirement.
- You don’t want required minimum distributions. Roth IRAs have no RMDs for the original owner.
When a traditional IRA often makes more sense
- You’re in a high bracket now and expect a lower one in retirement.
- You need the deduction to lower your taxable income this year — maybe to qualify for other credits or benefits.
- You’re in your peak earning years and plan to retire somewhere with lower or no state income tax.
If you’re fuzzy on what “bracket” means, see how tax brackets actually work.
Withdrawal rules in brief
Taking money out before age 59½ generally triggers a 10% penalty on top of income tax for traditional IRAs, and on the earnings portion of Roth IRAs. There are exceptions, such as certain first-time home purchases (up to $10,000), qualified education expenses, and disability. For Roth earnings to be tax-free, the account also generally needs to be open at least five years.
You don’t have to pick just one
You can split your annual contribution between a Roth and a traditional IRA, as long as the total stays under the limit. Many people also have a pre-tax 401(k) at work and use a Roth IRA on the side for balance. If your employer offers a match, capture that first — here’s how 401(k) matching works.
What to invest in once the account is open
An IRA is just the container. You still have to choose investments inside it, and leaving cash uninvested is a surprisingly common mistake. Broad, low-cost index funds or a single target-date fund are simple starting points. We also compare IRAs with ordinary accounts in brokerage vs. retirement accounts.
Bottom line
If you expect your income and tax rate to rise, lean Roth. If you’re in a high bracket now, lean traditional. If you truly can’t decide, splitting contributions is a reasonable hedge. The bigger mistake is waiting — a year of contributions you never make is gone for good. The IRS’s IRA overview has the full official rules.
This is educational content, not personal tax or investment advice.
