Roth vs Traditional IRA in 2026: How to Choose
Roth or Traditional? The break-even tax-rate test, 2026 limits and income phase-outs, and the cases where each one wins.
CalciTools Editorial · · 8 min read
The choice comes down to one question: will your tax rate be higher today or when you withdraw the money? A Traditional IRA lets you deduct the contribution now and pay tax on withdrawals later. A Roth IRA taxes the money going in and lets it come out tax-free. If your rate is the same at both ends, the two come out about even.
2026 IRA limits
- Contribution limit: $7,500, plus $1,100 catch-up at age 50+.
- Roth eligibility phases out at $153,000–$168,000 of MAGI (single) and $242,000–$252,000 (married filing jointly).
- If you have a workplace plan, the Traditional deduction phases out at $81,000–$91,000 (single) and $129,000–$149,000 (joint).
Three scenarios, same $7,500 a year for 30 years
We assumed a 7% return and that the Traditional saver invests the tax savings in a taxable account (losing 15% of that growth to taxes). After-tax money available at retirement:
| Tax rate now → later | Roth | Traditional | Winner |
|---|---|---|---|
| 24% → 12% (rate falls) | $758,048 | $816,534 | Traditional by $58,486 |
| 22% → 22% (same) | $758,048 | $728,275 | Roth by $29,773 |
| 12% → 22% (rate rises) | $758,048 | $666,003 | Roth by $92,045 |
Note the middle row: with equal rates Roth edges ahead, because the Traditional saver’s side account is slowed by taxes. That small built-in Roth advantage is why many planners favor Roth when you’re unsure.
Who should pick which
- Pick Roth if you’re in the 10% or 12% bracket, early in your career, expect a pension or large Social Security benefit, or want tax-free flexibility later.
- Pick Traditional if you’re in the 24% bracket or higher, live in a high-tax state you plan to leave, or need a lower AGI now — for example to qualify for ACA subsidies or reduce an income-based student loan payment.
- Split it if you genuinely don’t know. Having both pre-tax and Roth money lets you manage your taxable income each year in retirement.
The Roth vs Traditional calculator works out your current marginal rate from your income and state, and shows the retirement tax rate at which the two break even.
Frequently asked questions
Can I contribute to both a Roth and a Traditional IRA?
Yes, but the $7,500 limit ($8,600 at 50+) is shared across all your IRAs for 2026. You could split it, for example $3,750 each.
Can I have a 401(k) and a Roth IRA?
Yes. Workplace plan coverage doesn’t affect Roth IRA eligibility — only your income does. It does affect whether a Traditional IRA contribution is deductible.
What is the deadline for 2026 IRA contributions?
The tax filing deadline in April 2027. Contributions made between January 1 and the deadline can be designated for either 2026 or 2027.
Sources
Estimates for planning, not financial, tax or legal advice. CalciTools calculators use published government figures and the assumptions shown on each page. Your actual numbers depend on details we don’t model. Check important decisions with a qualified professional.