So how do you choose between a Roth IRA vs traditional IRA? Both account types let you invest money for retirement with tax advantages. They just apply that advantage at opposite ends of the timeline. A traditional IRA contribution can be tax-deductible in the year you make it, lowering your taxable income now. You then pay ordinary income tax on withdrawals in retirement. A Roth IRA contribution offers no upfront deduction, since you make it with money you’ve already paid tax on. But qualified withdrawals in retirement, including all investment growth, come out completely tax-free.

Neither account avoids taxes altogether; each one simply picks a different point to apply them. The traditional IRA taxes the money going in and the growth coming out. The Roth IRA taxes the money going in, but leaves the growth entirely untaxed.

For 2026, the combined annual contribution limit across all your IRAs, traditional and Roth together, is $7,500. Savers age 50 and older can contribute an additional $1,100 catch-up amount, for a total of $8,600. You can split contributions between a traditional and a Roth IRA in the same year, in any combination you choose. Just make sure the combined total doesn’t exceed this limit. You also can’t contribute more than your actual earned income for the year.

These are the same annual limits, regardless of how many separate IRA accounts you hold across different institutions. The cap applies to your total across all of them combined, not to each account individually. Contributing beyond the limit can trigger a 6% excise tax on the excess. That includes doing it by accident, by spreading contributions across accounts without tracking the total. That tax applies for each year you don’t correct it.

Traditional IRAs have no income limit on who can contribute. But the tax deduction itself can phase out at higher incomes if a workplace retirement plan also covers you. Roth IRAs work differently: your ability to contribute directly phases out entirely above a certain income level. For 2026, the phase-out range runs from $153,000 to $168,000 in modified adjusted gross income for single filers. For married couples filing jointly, it’s $242,000 to $252,000. Earn above the top of that range, and you can’t contribute directly to a Roth IRA at all that year. That’s true no matter how much you’d like to.

This income limit is the single most common reason higher earners end up defaulting to a traditional IRA. Others explore a “backdoor Roth” strategy instead: contributing to a traditional IRA, then converting it to a Roth. That sidesteps the direct income limit through a different, IRS-sanctioned mechanism. The conversion itself is generally a taxable event on any pretax amount converted. So the strategy works best when the traditional IRA involved has little or no existing pretax balance. That keeps the tax calculation simple.

The traditional-versus-Roth decision ultimately comes down to a comparison between your current tax bracket and your expected tax bracket in retirement. Say you expect to be in a lower tax bracket once you’re retired. That can happen because your income naturally drops without a salary. In that case, the traditional IRA’s upfront deduction is generally more valuable. That’s because you’re deferring tax from a higher-bracket year into a lower-bracket one.

Now say you expect to be in the same bracket or a higher one in retirement. That can happen if your investments grow substantially, or if tax rates rise generally in the future. In that case, the Roth IRA’s tax-free growth becomes more attractive. You’re locking in today’s rate on money the IRS might otherwise tax more heavily later. Nobody can know their future tax bracket with certainty. That’s exactly why this remains a genuine judgment call, not a question with one universally correct answer.

Roth IRAs offer more withdrawal flexibility than many people realize. You can generally withdraw contributions, though not earnings, at any time, for any reason, without tax or penalty. That’s because you already paid tax on that money before it went in. Earnings withdrawn before age 59½, and before the account has been open five years, typically face both tax and a 10% penalty. There are some exceptions.

Traditional IRAs are stricter across the board, since you haven’t paid tax on any of that money yet. Withdrawals before 59½ generally trigger both ordinary income tax and a 10% early withdrawal penalty, again with certain exceptions. Traditional IRAs also require you to start taking required minimum distributions at a certain age. That’s true whether or not you actually need the money that year. Roth IRAs carry no such requirement during the original owner’s lifetime.

These rules mean the two accounts aren’t just different in when tax applies to them; they behave differently as financial safety nets too. A Roth IRA’s ability to access contributions penalty-free gives it some flexibility. It can work as a backup source of funds in a genuine emergency. A traditional IRA generally can’t offer that without triggering both tax and penalty on the full withdrawn amount.

Splitting contributions between both account types is a common strategy. So is holding a traditional 401(k) at work alongside a Roth IRA on the side. Both hedge against genuine uncertainty about future tax rates. Having both taxable-later and tax-free-later money available in retirement gives you more flexibility. You can manage your taxable income each year by choosing which account to draw from.

This flexibility can matter more than it sounds like in the abstract. For a retiree with only traditional accounts, every withdrawal adds to taxable income. That can push them into a higher bracket. It can also affect other income-based calculations, like how much of their Social Security benefit counts as taxable. Having a pool of tax-free Roth money for high-income years, alongside traditional funds for lower-income years, gives retirees an extra lever. It’s something a single account type simply doesn’t provide.

Whichever account type you lean toward, the growth math itself works the same way. Our Compound Interest Calculator can help you see how a $7,500 annual contribution, or any amount you choose, could grow over your own time horizon.