Roth vs. Traditional IRA: Which Should You Choose in 2026?

Ask five different people whether you should choose a Roth or Traditional IRA and you'll probably get five confident, contradictory answers — plus one "it depends" from anyone who actually knows what they're talking about. The frustrating part is that "it depends" is the correct answer. It just isn't a useful one by itself. What it depends on is knowable, though: your tax bracket today, your best guess at your tax bracket in retirement, and how long the money has to grow. The numbers below walk through an actual example so you can see where the trade-off lands instead of just being told it exists.

The 2026 IRA Limits

Every year around this time, the IRS quietly adjusts a batch of retirement account limits for inflation, and the IRA limit is one of them. For 2026, it went up to $7,500 from $7,000 in 2025 — a $500 bump. If you're 50 or older, you also get to add a catch-up contribution on top, and that rose too, from $1,000 to $1,100, bringing your total allowed contribution to $8,600 for the year. One thing that trips people up: this limit isn't per account, it's per person. If you split your savings between a Roth IRA and a Traditional IRA in the same year, the two contributions still have to add up to $7,500 (or $8,600 with the catch-up) combined, not $7,500 into each one separately. Plenty of people find that out the hard way after over-contributing and having to unwind it.

A 25-Year Worked Example

Let's actually run the numbers instead of just talking around them. Say you contribute the full $7,500 this year, invest it, and it grows at an average of 7% a year — a reasonable long-run assumption for a stock-heavy portfolio, though real returns obviously bounce around year to year — for the next 25 years. By the time you're ready to retire, that single contribution has grown to $40,705.74. That part is identical no matter which account it's sitting in, since a dollar invested the same way grows the same way regardless of its tax label. What's different is what happens when you actually take the money out. Pull it from a Roth IRA and the entire $40,705.74 is yours, tax-free, because you already paid the tax back when you contributed it. Pull it from a Traditional IRA and the IRS is waiting for its share: at a 12% tax rate in retirement, you'd keep $35,821.06. If your rate stayed at 22% — the same bracket you'd have been in today — you'd only keep $31,750.48.

There's a wrinkle worth being honest about: this comparison assumes you contribute the same $7,500 either way, but a Traditional contribution also hands you $1,650 back at tax time this year that a Roth contribution doesn't. If you take that $1,650 and actually invest it somewhere else instead of spending it, the math gets closer between the two options than the withdrawal numbers alone suggest. Most people don't reliably do that, though, which is part of why the Roth's "you already paid, forget about it" simplicity has real appeal even when the underlying math is closer to a coin flip.

Step-by-Step: Making the Choice

Here's how to actually work through this instead of guessing. Start by checking your current marginal tax bracket — not your average tax rate, your marginal one, since that's the rate you'd actually save at with a Traditional deduction. Then take your best guess at your tax bracket in retirement. This is the hard part, because nobody has a crystal ball, but think about where your income is likely to come from later: Social Security, a pension if you have one, withdrawals from other retirement accounts, maybe part-time work. Compare the deduction's value today against the tax-free withdrawal later, using the same kind of math from the example above but with your own contribution amount and your own bracket guess. If you genuinely can't call it — and a lot of people in their 30s and 40s honestly can't, since tax law and personal circumstances can both look very different 20 or 30 years out — splitting your contributions across both a Roth and a Traditional account is a completely reasonable hedge rather than a cop-out. And before you contribute to a Roth at all, double check you're actually eligible: the IRS phases out Roth contributions above a certain income level, and that threshold moves every year, so check the current IRS page rather than trusting a number you saw somewhere else that might already be stale.

Take someone like Maria, a 34-year-old marketing manager earning enough to sit comfortably in the 22% bracket today. She's got 30 years until retirement, no idea what tax brackets will look like by then, and a reasonable expectation that her income — and therefore her tax bracket — will probably be lower once she's not working full time. For someone in her position, splitting the difference between Roth and Traditional contributions hedges against being wrong in either direction, and she can always weight future contributions more heavily toward whichever bracket assumption starts looking more accurate as retirement gets closer.

The Simple Rule of Thumb

If you had to boil this down to one sentence: a lower tax bracket in retirement than you're in today favors Traditional, because you get the deduction now at your higher rate and pay tax later at your lower one. A bracket that stays the same or climbs favors Roth, because paying the tax now turns out to be the cheaper move either way you slice it. But bracket math isn't the only thing that separates these two accounts, and it's worth knowing the other differences even if they don't change your decision. A Traditional IRA comes with required minimum distributions later in life — the IRS eventually makes you start withdrawing money whether you need the income or not. A Roth IRA has no such requirement for the original account holder, so the money can keep growing untouched for as long as you want it to. Roth accounts also give you more flexibility if life throws a curveball: you can withdraw your original contributions (not the earnings) at any time, for any reason, without tax or penalty, since you already paid tax on that money going in. Try that with a Traditional IRA before retirement age and you're typically looking at both income tax and a penalty on top of it. None of that should override the bracket math for most people, but it's a real factor if flexibility matters to you.

The Short Version

So, to pull it all together: for 2026, you can put away $7,500 (or $8,600 if you're 50-plus) into an IRA. Grow that money for 25 years at a 7% average return and you're looking at $40,705.74 before tax, no matter which account it's in. Pull it from a Roth and every dollar of that is yours, tax-free. Pull it from a Traditional account and you're netting somewhere between $31,750.48 and $35,821.06 depending on your tax rate at the time. If you expect to be in a lower bracket once you retire, Traditional usually wins. If you expect the same bracket or higher, Roth usually wins. And if you honestly don't know — which describes most people more than 15 or 20 years from retirement — splitting your contributions across both accounts isn't indecision, it's just sensible risk management for a question nobody can answer with certainty.

FAQ

Educational resource only, not tax or investment advice. The examples above are illustrative and assume constant growth and tax rates; your own bracket, timeline, and returns will differ — consult a tax professional for your specific situation. See the IRS’s official 2026 contribution limit announcement for current figures.