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

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. If your formula is tiered, or capped in dollars rather than as a percentage, put your salary and your plan's actual formula into the employer match calculator before you set your deferral rate — the percentage that captures every matched dollar is rarely the round number people guess at.

One timing trap worth naming here: if your plan does not offer a true-up, front-loading your deferrals to hit $24,500 by September costs you the match on October, November and December, because most plans compute the match per pay period rather than per year. Ask HR one question — "does the plan true up the match at year end?" — and if the answer is no, spread your contributions evenly across all 26 pay periods.

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 ($7,500 in 2026) if income-eligible.

If you're below the 2026 Roth IRA phase-out ranges ($153,000–$168,000 single, $242,000–$252,000 married filing jointly), contribute $7,500 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 $24,500 limit.

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

• Remaining 401(k) space: $24,500 – $3,000 (match-capturing contribution) = $21,500.
• Contribute $21,500 more to max out your employee deferral.

Step 4: At age 50+, claim catch-up contributions — and at 60–63, claim the larger one.

• 401(k) catch-up, ages 50–59: additional $8,000 (total employee deferral $32,500).
• 401(k) super catch-up, ages 60–63 only: additional $11,250 instead of the $8,000 (total employee deferral $35,750). The two do not stack, and the amount drops back to $8,000 in the year you turn 64.
• Roth IRA catch-up, 50+: additional $1,100 (total $8,600).

The 60–63 band is a four-year window created by SECURE 2.0. Nothing about it carries forward — a year you skip is gone.

Step 5: If your plan allows it, add after-tax contributions.

Some 401(k)s accept after-tax (non-Roth) contributions once you've maxed the employee deferral. You get no deduction, but they use the space between your deferral and the $72,000 all-sources cap—and every dollar of employer contribution consumes that same space. On $100,000 with a $3,000 match, the after-tax room is $72,000 – $24,500 – $3,000 = $44,500.

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 ($24,500 vs. $7,500).

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

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

Single filer, income $175,000: Ineligible for Roth IRA (the 2026 phase-out ends at $168,000).

• Step 1: Capture 401(k) match.
• Step 2: Max out 401(k) employee deferral ($24,500).
• Step 3 (instead of Roth): Use backdoor Roth (contribute non-deductibly to traditional IRA, then convert to Roth).

Married filing jointly, income $260,000: Ineligible for Roth IRA (the 2026 phase-out ends at $252,000).

• 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.

Before running a backdoor Roth, check the pro-rata rule. If you hold any pre-tax traditional, SEP or SIMPLE IRA money, the conversion is taxed proportionally across all of it — you cannot convert only the non-deductible dollars. Someone holding $92,500 of pre-tax IRA money who adds a $7,500 non-deductible contribution has $100,000 of IRA money in total, so only 7.5% of any conversion is treated as basis and 92.5% is taxed as ordinary income — on a $7,500 conversion, $6,938 of it. Price that before you file, not after: the Roth conversion calculator applies the 2026 brackets to the taxable slice, which is the number backdoor-Roth guides usually assume is zero.

The Catch-Up Rule That Changed for 2026

If your FICA wages from the employer sponsoring your plan exceeded $150,000 in 2025, every catch-up contribution you make in 2026 — the $8,000 at 50+, or the $11,250 at 60–63 — must go to a Roth 401(k). You cannot make it pre-tax. This is SECURE 2.0 §603. It was originally due in 2024, and IRS Notice 2023-62 gave plans an administrative transition period through the end of 2025, so 2026 is the first year most affected participants actually feel it.

Three details decide whether it applies to you:

• It is a prior-year test. Your 2026 catch-ups are governed by what your 2025 W-2 said. A raise past $150,000 in the middle of 2026 changes nothing until 2027.
• It is wages from the plan sponsor, the Social Security wages in Box 3 — not household income and not AGI. Two jobs at $90,000 each cross neither plan's threshold.
• Self-employed owners with no W-2 wages are outside it entirely. A Solo 401(k) owner taking self-employment earnings rather than wages has no prior-year wage figure to test.

The practical effect for someone in Step 4 is that the catch-up loses its deduction. If that pushes your current-year tax bill somewhere you did not plan for, the lever is the base $24,500 deferral, which stays pre-tax at any income.

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 (above $168,000 single, where the 2026 phase-out ends).
• You want higher contribution limits ($24,500 vs. $7,500 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 the 2026 deduction phase-out ranges ($81,000–$91,000 single, $129,000–$149,000 married filing jointly).

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, with contributions credited at the end of each year:

• $32,000/year × 40 years → about $8,290,000 across the tax-deferred and tax-free accounts (about $9,070,000 if the $3,000 match is invested alongside it).

Treat that as an illustration of the mechanism, not a forecast. Drop the assumed return from 8% to 6% and the same $32,000 a year lands near $4,950,000 — two percentage points move the answer by more than $3 million, which is why it is worth pushing your own return, horizon and contribution through the compound interest calculator instead of trusting any single projection, including this one.

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.

Where This Sequence Breaks Down

The match-then-Roth-then-401(k) order is right for a salaried employee with a match, no expensive debt, and no other tax-advantaged account available. Four situations change the answer:

You carry credit card debt. A balance at 22% APR is a guaranteed 22% return on every dollar you throw at it. Nothing in Steps 2 through 5 beats that. Capture the match — that is a 50%–100% return and still wins — then stop, clear the card, and resume the sequence.

You have a high-deductible health plan. An HSA is the only account in the tax code that is deductible going in, untaxed while it grows, and tax-free coming out for qualified medical expenses. The 2026 limits are $4,400 self-only and $8,750 family, plus $1,000 more at 55+. Most planners slot it directly between Step 1 and Step 2 — ahead of the Roth IRA — precisely because nothing else gets all three breaks.

Your employer offers no match. Roughly a third of plans do not, and new hires frequently sit in a waiting period for the first year. Step 1 simply disappears: start at the Roth IRA, then use the 401(k) for the deferral limit. Compare the expense ratios first, though — a 401(k) menu charging 0.80% against an index fund at 0.03% costs a $200,000 balance about $1,540 a year, which is real money to weigh against the higher limit.

You have a pension, or a 457(b) as well as a 403(b). A defined-benefit pension arrives as ordinary income in retirement, which raises the bracket your 401(k) withdrawals will land in and strengthens the case for Roth. And a public-sector worker with both a 403(b) and a governmental 457(b) has two separate $24,500 deferral limits, not one shared limit — the single largest legal deferral available to a salaried employee.

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.

FAQ

Does my employer's match count against the $24,500 limit?

No. The $24,500 elective deferral limit applies only to money you defer from your own paycheck. Employer contributions — match, profit sharing, non-elective — count against the separate §415(c) all-sources cap of $72,000 for 2026. That is why a $3,000 match does not shrink your own contribution room by a dollar, and why the after-tax room in Step 5 is $72,000 minus your deferral minus everything the employer put in.

I maxed my Roth IRA and then realized my income was over the limit. What do I do?

Fix it before the filing deadline, including extensions. Ask the custodian to either recharacterize the contribution to a traditional IRA or withdraw it along with the net income it earned; both undo the problem cleanly. If you leave an excess contribution in the account, IRC §4973 imposes a 6% excise tax on it every year it stays there, reported on Form 5329 — the penalty repeats annually, which is what makes ignoring it expensive rather than merely embarrassing.

Can I contribute to a 401(k) and a Roth IRA in the same year?

Yes. They are separate limits with separate rules: $24,500 to the 401(k) regardless of income, and $7,500 to the Roth IRA if your MAGI is under the 2026 phase-out ($153,000–$168,000 single, $242,000–$252,000 married filing jointly). Being covered by a workplace plan restricts the deductibility of a traditional IRA contribution, not your eligibility for a Roth one.

Is a Roth 401(k) contribution matched the same as a pre-tax one?

Yes — the match is calculated on your deferral whichever type you choose. Under SECURE 2.0 an employer may now deposit the match itself into the Roth side if the plan offers that election, in which case the matched amount is taxable income to you in the year it is contributed. If your plan does the default thing instead, your Roth deferrals earn a pre-tax match, and you end up with two buckets to withdraw from rather than one.

Sources

• Internal Revenue Service, Notice 2025-67 — 2026 retirement plan limits ($24,500 deferral, $8,000 catch-up, $11,250 at 60–63, $7,500 IRA, $72,000 §415(c), and the Roth IRA and traditional-IRA-deduction phase-out ranges).
• SECURE 2.0 Act of 2022, §603 — the Roth catch-up requirement for participants with prior-year FICA wages above the indexed threshold; IRS Notice 2023-62 — the administrative transition period through 2025.
• Internal Revenue Service, Publication 590-A — IRA contribution limits, the pro-rata rule, and correcting excess contributions; IRC §4973 — the 6% excise tax on excess contributions.
• 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)."