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Traditional IRA vs Roth IRA: Decision Guide by Income

The traditional vs Roth question comes down to one thing: do you want a tax break now or in retirement? This guide gives you the answer based on your actual income, not generic advice.

The Core Difference

	Traditional IRA	Roth IRA
Tax break	Deduct contributions now, pay tax on withdrawals later	No deduction now, withdrawals are completely tax-free
2026 contribution limit	$7,000 ($8,000 if 50+)	$7,000 ($8,000 if 50+)
Required minimum distributions	Yes, starting at 73	No RMDs ever (for original owner)
Early withdrawal	10% penalty + taxes on earnings before 59½	Contributions can be withdrawn anytime, tax/penalty-free. Earnings: 5-year rule + age 59½
Income limits for contribution	None (but deduction phases out)	$150K-$165K single, $236K-$246K married (2026)

Decision by Income Level (2026, Single Filer)

Under $50,000 AGI

Choose: Roth IRA

You’re in the 12% federal bracket. Paying 12% tax on contributions now is a bargain — in retirement, you’ll likely be in the same or higher bracket, especially if you build wealth over decades. Tax-free growth and zero RMDs make Roth the clear winner at low incomes.

$50,000 - $83,000 AGI (with employer plan)

Choose: Either works — lean Roth

Your traditional IRA deduction is still fully available (under $83K threshold with an employer plan). The 22% bracket makes the traditional deduction more valuable, but Roth’s lifetime benefits (no RMDs, tax-free growth) still win for most people under 40.

Split strategy: Contribute to traditional 401(k) at work (get the deduction at 22%) and Roth IRA (diversify your tax exposure).

$83,000 - $93,000 AGI (with employer plan)

Choose: Roth IRA

Your traditional IRA deduction phases out in this range. A partial deduction isn’t worth the complexity. Roth contributions are still fully available.

$93,000 - $150,000 AGI

Choose: Roth IRA

No traditional IRA deduction (if you have an employer plan), but you’re under the Roth income limit. Roth is the obvious choice.

$150,000 - $165,000 AGI

Choose: Backdoor Roth IRA

Roth contribution phases out. Use the backdoor strategy: contribute to a non-deductible traditional IRA, then convert to Roth. Legal, well-established, IRS-approved.

Warning: If you have existing pre-tax IRA balances, the pro-rata rule makes backdoor Roth partially taxable. Roll pre-tax IRA money into your 401(k) first to avoid this.

Over $165,000 AGI

Choose: Backdoor Roth IRA

Same strategy. You can’t contribute directly to either a deductible traditional or Roth. Backdoor Roth is the way.

Self-Employed at Any Income

Consider: SEP IRA or Solo 401(k) first

These allow much higher contributions ($69K for SEP, $69K+ for Solo 401k). Max these out, then use backdoor Roth for additional savings. See Best IRA Accounts Compared: Traditional vs Roth vs SEP for the full breakdown.

The Tax Diversification Strategy

The smartest approach isn’t either/or — it’s both.

Having money in traditional (tax-deferred) AND Roth (tax-free) accounts gives you flexibility in retirement:

• Low-income years: Withdraw from traditional (pay low or 0% tax via standard deduction)
• High-income years: Withdraw from Roth (avoids bumping into higher brackets)
• Medicare premium management: Roth withdrawals don’t count toward IRMAA thresholds
• Social Security taxation: Roth withdrawals don’t count toward the income that triggers Social Security tax

Practical implementation: Traditional 401(k) at work + Roth IRA personally. Or split your 401(k) 50/50 between traditional and Roth if your plan offers both.

Roth Conversion: The Power Move

Already have a large traditional IRA? Consider systematic Roth conversions:

1. Convert a portion each year (stay within your current bracket)
2. Pay income tax on the converted amount now
3. All future growth is tax-free in the Roth

Best conversion years:

• Early retirement (before Social Security and RMDs start)
• Career transition or sabbatical
• Years with large deductions
• Before tax rates potentially increase

The 5-year rule: Each Roth conversion has its own 5-year waiting period for tax-free withdrawal of the converted amount (if under 59½). Contributions can always be withdrawn immediately.

Common Mistakes

1. Not contributing because you can’t decide: Roth vs traditional is a 10-20% optimization. Not contributing at all is a 100% loss. If you’re paralyzed by the choice, just pick Roth.
2. Forgetting the pro-rata rule: Backdoor Roth doesn’t work cleanly if you have pre-tax IRA balances. Roll them to a 401(k) first.
3. Ignoring state taxes: If you’re in a high-tax state now but plan to retire in a no-tax state, traditional becomes more attractive (deduct at high rate now, withdraw at 0% state rate later).
4. Converting too much at once: Large Roth conversions push you into higher brackets. Spread them across multiple years.

Key Takeaways

• Under $50K income: Roth IRA, almost always
• $50K-$93K with employer plan: Roth or split strategy
• Over $150K: Backdoor Roth
• Tax diversification (some traditional, some Roth) is the optimal long-term strategy
• When in doubt, choose Roth — tax-free growth is extremely valuable over decades

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This content is for informational purposes only and does not constitute financial advice. Consult a licensed financial professional before making financial decisions.