401(k) vs Roth IRA in 2026: Which Should You Fund First?

Quick Answer

Always contribute enough to your 401(k) to claim the full employer match—it's an instant 50%–100% return on investment. After capturing the match, max out your Roth IRA ($7,000 in 2026) if you're income-eligible. Then return to your 401(k) to reach the $23,500 employee deferral limit. This sequence captures the match (free money), builds tax-free Roth wealth, and maximizes tax-deferred traditional contributions.

The Employer Match Is Free Money

Most employers offer a 401(k) match: they contribute to your 401(k) based on your contribution. Common matches are:

• 100% match up to 3% of salary.
• 50% match up to 6% of salary.
• Immediate vesting (money is yours immediately) or vesting over 3–5 years.

Example: Your employer offers 100% match up to 3% of salary. You earn $100,000.

• If you contribute $3,000 (3% of salary), your employer contributes $3,000. You've just earned an instant $3,000 (100% return).
• If you contribute only $2,000, your employer contributes $2,000 (you've left $1,000 on the table).
• If you contribute $4,000, your employer contributes only $3,000 (the max match).

Not capturing the full match is leaving free money behind. Always contribute at least the percentage needed to claim the full match.

2026 Contribution Limits

The Optimal Funding Sequence

For a typical employee:

Step 1: Contribute enough to 401(k) to claim the full employer match.

Earning $100,000 with 100% match up to 3%? Contribute $3,000 (3%) to your 401(k).

• Your money: $3,000.
• Employer match: $3,000.
• Total to 401(k): $6,000.
• Return on contribution: 100%.

Step 2: Max out Roth IRA ($7,000 in 2026) if income-eligible.

If you're below Roth income phase-out limits ($146,000 single, $230,000 married), contribute $7,000 to a Roth IRA.

• Tax-free growth for life.
• Tax-free withdrawals in retirement.
• No RMDs (unlike traditional accounts).

Step 3: Return to 401(k) and continue contributing up to the $23,500 limit.

After capturing the match and maxing Roth, contribute more to your 401(k) if you have the income.

• Remaining 401(k) space: $23,500 – $3,000 (match-capturing contribution) = $20,500.
• Contribute $20,500 more to max out your employee deferral.

Step 4: At age 50+, claim catch-up contributions.

• 401(k) catch-up: Additional $7,500 (total employee deferral $31,000).
• Roth IRA catch-up: Additional $1,000 (total $8,000).

Step 5: Contribute to employer match (if not already), then employer retirement plan if applicable.

Some 401(k)s allow additional non-Roth contributions after you max the employee deferral. These are taxable to you but allow higher total savings.

Why This Sequence?

Why capture the match first? Free money. A 100% match is an instant return; no investment can guarantee that.

Why Roth IRA second? Unlike 401(k)s, Roth IRAs have no RMDs, greater investment flexibility, and tax-free withdrawals. For younger workers, the Roth tax-free growth outweighs the 401(k) tax deduction now.

Why 401(k) after? The 401(k) provides a tax deduction now (reducing current taxable income) and higher contribution limits than Roth IRA ($23,500 vs. $7,000).

Income Phase-Outs: What If You're High-Income?

If your income exceeds Roth IRA limits, you can't contribute directly:

Single filer, income $150,000: Ineligible for Roth IRA.

• Step 1: Capture 401(k) match.
• Step 2: Max out 401(k) employee deferral ($23,500).
• Step 3 (instead of Roth): Use backdoor Roth (contribute non-deductibly to traditional IRA, then convert to Roth).

Married filing jointly, income $235,000: Ineligible for Roth IRA.

• Same as single: capture match, max 401(k), then backdoor Roth.

Traditional 401(k) deferrals have no income limits, so high earners can still use the 401(k) for tax-deferred savings.

Roth 401(k) Option

Some employers offer a Roth 401(k) as part of their plan. This is a third option:

• Contributions are after-tax (no deduction like traditional 401(k)).
• Growth and withdrawals are tax-free (like Roth IRA).
• No income limits (even high earners can use it).
• Has RMDs (unlike Roth IRA).

When to use Roth 401(k) over regular Roth IRA?

• You exceed Roth IRA income limits ($150,000+ single).
• You want higher contribution limits ($23,500 vs. $7,000 IRA limit).
• You expect higher taxes in retirement.

When to use regular IRA over Roth 401(k)?

• You want no RMDs (Roth IRA has none; Roth 401(k) does).
• Your employer's Roth 401(k) has poor investment options (IRAs typically offer more choices).

Employer Vesting: Claim Before Leaving

If the match has a vesting schedule (e.g., 3-year vesting), you must stay with the company to keep the employer contribution.

Example: Your employer contributes $3,000 matching, vesting 33% per year.

• Year 1: You're 33% vested ($1,000 is yours; $2,000 is not yet).
• Year 2: You're 66% vested ($2,000 is yours).
• Year 3: You're 100% vested ($3,000 is yours).

If you leave after Year 1, you lose the $2,000 unvested portion.

Strategy: If planning to leave, accelerate contributions early in the year to claim as much match as possible before departure.

Coordinating With Traditional IRA

You can have both a 401(k) and a traditional IRA. However, traditional IRA contributions are not deductible if:

• You're covered by an employer-sponsored plan (like a 401(k)), AND
• Your income exceeds phase-out limits ($77,000 single, $123,000 married in 2026).

If you max out your 401(k), you're unlikely to also max a traditional IRA deduction—you'd be over the phase-out limit.

Instead, consider a backdoor Roth if income is over Roth phase-out.

Example: $100,000 Earner

Over 40 years (ages 25–65) at 8% return:

• $26,500/year × 40 years → $4,800,000+ tax-deferred and tax-free growth.

After Maxing Both: Taxable Investing

Once you've captured the match, maxed Roth IRA, and maxed 401(k) employee deferral, continue saving in a regular taxable brokerage account.

• No tax deduction (after-tax savings).
• Annual capital gains taxes (on dividends, sales).
• But unlimited savings amounts.
• Tax-efficient with long-term capital gains and diversified fund investing.

Revisiting Your Contribution Strategy Annually

Evaluate yearly:

1. Is the employer match still available? (Benefits change.)
2. Are you still income-eligible for Roth? (Income might change.)
3. Have contribution limits changed? (They adjust for inflation annually.)

Adjust contributions to max benefits.

Sources

• Internal Revenue Service. "401(k) Contribution Limits." IRS.gov.
• Internal Revenue Service. "Roth IRA Eligibility." IRS.gov.
• Department of Labor. "401(k) Plans." DOL.gov.
• Vanguard. "The Value of Employer Matching Contributions."
• Fidelity. "How to Maximize Your 401(k)."