Roth vs Traditional IRA in 2026: Which Wins?
Quick answer
If your tax bracket is the same now and in retirement, a Roth and a Traditional IRA give exactly the same result after tax. You pay the tax either way, just at a different time. With $7,500 put in, 7% growth over 30 years and the 22% bracket at both ends, both accounts leave you $44,532 after tax. Retire in a lower bracket and Traditional comes out ahead. Retire in a higher one and Roth does.
Every article on Roth versus Traditional ends up saying "it depends on your future tax bracket", and then moves on without showing what that means in dollars. It's worth seeing for yourself that the two come out equal, because once that clicks, the whole decision comes down to one comparison: is my tax bracket now higher, lower or about the same as it will be when I take the money out?
For 2026, everything else works the same way. The same $7,500 yearly limit ($8,600 with the $1,100 catch-up if you're 50 or over) covers both account types combined, so this is a choice about which kind of account your money sits in, not how much you can save.
Seeing the two come out equal
Take $7,500 of income before tax, invested for 30 years at a 7% return, and taxed at 22% both when you put it away and when you eventually take it out.
A Traditional IRA takes the whole $7,500 in, with no tax today. It grows to $57,092 over 30 years, and the withdrawal is taxed at 22%, leaving $44,532. A Roth IRA takes the same $7,500 of income, taxes it first at 22% ($1,650), and invests the remaining $5,850, which grows to exactly $44,532 and comes out completely tax-free. The two figures match to the cent, because it makes no difference whether the tax comes off before 30 years of growth or after. Multiplying by (1 − tax rate) gives the same answer at either end.
The Roth IRA Calculator projects either account's growth. Compare it with ordinary compound interest taxed at withdrawal, and you'll see the same result with your own contribution and timeframe.
Where the two stop being equal
The whole comparison comes down to one question: will your marginal tax rate when you withdraw be higher, lower or the same as it is today?
- If you retire in a lower bracket (12% instead of 22%), Traditional wins. The same $57,092 balance taxed at 12% leaves $50,241, which is $5,709 more than the Roth's fixed $44,532, because Traditional lets you move tax from a higher-earning year into a lower-taxed one.
- If you retire in a higher bracket (24% instead of 22%), Roth wins. Traditional's withdrawal now leaves only $43,390, about $1,142 less than the Roth, because the tax you put off grew right along with the account.
- Most people's income, and often their tax bracket, drops somewhat in retirement, which is the usual case for Traditional accounts. It's a reasonable starting assumption, but not a certainty. Tax brackets change over the decades, and a large enough balance can push your retirement income into a higher bracket than you expected.
Two differences the comparison leaves out
Two features favour Roth accounts whatever your bracket, and they're worth knowing even though they don't show up in the sums above.
- Roth IRAs have no required minimum distributions for the original owner, so the balance can keep growing tax-free for as long as you like. A Traditional IRA makes you start withdrawing from age 73.
- A Roth IRA's income limit works against high earners in particular. Contributions taper off between $153,000 and $168,000 of MAGI for a single filer in 2026 ($242,000-$252,000 married filing jointly). Traditional IRA contributions are open at any income, although the tax deduction itself can phase out if you have a workplace plan.
Frequently Asked Questions
What is the 2026 IRA contribution limit?
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The combined limit across Traditional and Roth IRAs is $7,500 for 2026, or $8,600 if you're 50 or over (a $1,100 catch-up). If you pay into both types in the same year, you share the one limit rather than getting two.
Can I contribute to both a Roth and a Traditional IRA?
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Yes, as long as the total across both stays within the yearly limit. Splitting between the two is a way of hedging when you can't be sure what your future tax bracket will be.
What is the Roth IRA income limit for 2026?
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Contributions phase out between $153,000 and $168,000 of modified adjusted gross income for single filers, and between $242,000 and $252,000 for married couples filing jointly. Above the top of the range, you can't contribute to a Roth directly.
Is a backdoor Roth conversion worth it above the income limit?
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It can be, but it gets complicated if you hold other pre-tax IRA money (because of the pro-rata rule). This is one of those cases where talking to a tax professional before you convert is money well spent.