Roth vs Traditional IRA: Which Should You Pick?
Traditional IRA gives you a tax deduction now and pays tax in retirement; Roth pays tax now and grows tax-free forever. The conventional wisdom — pick traditional if you expect a lower tax rate in retirement, Roth if higher — is right but incomplete. Here is the full decision framework.
Use the calculator
IRA Calculator
Step-by-step
- 1
Identify your current marginal tax bracket
2026 federal brackets for single filers: 10% up to $11,925, 12% to $48,475, 22% to $103,350, 24% to $197,300, 32% to $250,525, 35% to $626,350, 37% above. State income tax adds 0–13% on top. Your "marginal" bracket is what the next dollar saved would be taxed at.
- 2
Estimate your retirement marginal bracket
In retirement, your taxable income is Social Security (up to 85% taxable) + traditional IRA/401(k) withdrawals + pension + part-time work. Most retirees end up in the 12–22% bracket. The standard deduction ($14,600 single, $29,200 married in 2026) covers the first chunk tax-free.
- 3
Pick traditional if current bracket > expected retirement bracket
A high earner at 32% federal + 6% state (38% combined) saving in traditional now and withdrawing in the 22% retirement bracket nets a 16-percentage-point arbitrage. On $7,000 of contributions, that is $1,120 of pure tax savings per year that compounds tax-deferred.
- 4
Pick Roth if current bracket ≤ expected retirement bracket
A 25-year-old in the 12–22% bracket who expects to be a high-income retiree (significant taxable accounts + RMDs + Social Security) should max Roth. Tax-free withdrawals in retirement are extraordinarily valuable for high earners.
- 5
Use Roth for "tax diversification" even when math is close
When current and expected retirement brackets are similar, lean Roth for flexibility. Roth contributions can be withdrawn anytime tax- and penalty-free; Roth accounts have no Required Minimum Distributions during your lifetime; Roth dollars stretch further in estate planning.
- 6
Check the income limits for direct contributions
2026 Roth IRA contribution phase-out: $150K–$165K single, $236K–$246K married filing jointly. Above the upper bound, direct Roth contributions are not allowed — but the "backdoor Roth" (contribute to traditional non-deductible, then convert) is a clean workaround for high earners.
- 7
Mix both if you cannot decide
Many people split contributions: max 401(k) traditional (up to employer match + above), max Roth IRA on the side. This builds tax-diversified buckets that you can pull from optimally in retirement based on each year's tax situation.
💡 Tips
- Roth contributions (not earnings) can be withdrawn anytime, tax-free and penalty-free, regardless of age or holding period. This makes Roth IRA a backstop emergency fund — not ideal, but available.
- If you expect to retire early (before 59.5), Roth is more flexible. The Roth conversion ladder lets you access traditional 401(k) money tax-free 5 years after each conversion year.
- After 50, Roth catch-up contributions get tricky — under SECURE 2.0, high-income earners (roughly $145K+ wages) must do their 401(k) catch-up as Roth. Plan for this in tax projections.
FAQ
Can I contribute to both a Roth and traditional IRA in the same year?
Yes, but the combined annual limit applies — $7,000 total in 2026 (or $8,000 if 50+). You can split it however you want: $4,000 Roth + $3,000 traditional, or any other combination.
What is a backdoor Roth IRA?
A two-step process for high earners above the direct-Roth income limit: contribute to a non-deductible traditional IRA, then convert that contribution to a Roth. Legal under current law and explicitly named in IRS guidance. Watch the "pro-rata rule" if you have other pre-tax IRA balances — conversions become partially taxable.
Should I convert my traditional IRA to Roth?
It depends on the conversion year's tax bracket. Best in low-income years (between jobs, early retirement before Social Security starts, sabbatical years) when your marginal rate temporarily drops. Avoid converting in your peak earning years.
Do I lose my Roth tax-free growth if I withdraw early?
Contributions can come out anytime tax- and penalty-free. Earnings withdrawn before 59.5 (and before 5 years from first contribution) are subject to 10% penalty + ordinary income tax — except for first-time home purchase ($10K lifetime), qualified education, disability, and a few other exceptions.
Are Roth IRA earnings really tax-free?
Yes, if you meet the qualified distribution rules: account at least 5 years old AND distribution after age 59.5 (or due to disability, first-time home purchase up to $10K, or death). Otherwise earnings portions are subject to tax + penalty until you meet both conditions.
Disclaimer. This guide is for general educational and informational purposes only and is not financial, tax, retirement, or investment advice. Projections are estimates based on the assumptions you provide; markets, tax law, and contribution limits change over time. Consult a licensed financial advisor or tax professional before making retirement decisions. Read our editorial policy.