The 2026 401(k) Contribution Limits

Your personal ceiling depends on your age. The base employee deferral is the same for everyone, but the catch-up you can add on top — and the combined employee-plus-employer total — changes once you hit 50, and again for the four years you’re 60 to 63. These figures come straight from IRS Notice 2025-67, the annual cost-of-living-adjustment guidance that sets every retirement-plan dollar limit for the year.

Two terms people mix up: your elective deferral is the base amount anyone can contribute ($24,500) — it’s separate from your catch-up contribution, which is the extra amount only available once you turn 50. They’re tracked separately but count toward the same paycheck withholding.

Read it across your row: the “your max” column is what you can put in from your own paycheck, and the final column is the total once your employer’s match and any profit-sharing are added. These limits apply to 401(k), 403(b), governmental 457(b), and the federal Thrift Savings Plan.

Quick Answers to the Top Questions

What’s the 2026 401(k) limit?

$24,500 in employee elective deferrals, up $1,000 from the 2025 limit of $23,500. That’s the cap on what you contribute from your own salary before any employer money — the figure people mean when they search “maximum 401k contribution 2026.”

How much can I add over 50?

An extra $8,000 standard catch-up, bringing your personal total to $32,500. See the super catch-up if you’ll be 60 to 63.

What’s the super catch-up?

For ages 60–63 only, the catch-up jumps to $11,250 instead of $8,000 — a personal max of $35,750. More below.

What’s the new Roth rule?

If your 2025 FICA wages from your employer topped $150,000, all of your catch-up contributions must be Roth in 2026. This is the big change.

Did the limit go up?

Yes. The base rose by $1,000 to $24,500. The standard catch-up rose $500 to $8,000; the super catch-up held at $11,250.

What’s New for 2026? (Three Key Changes)

Three things changed worth knowing before you set your elections:

1. The base limit rose to $24,500. A $1,000 increase over 2025 gives every saver a bit more room.
2. The super catch-up stays at $11,250 for ages 60–63. Combined with the higher base, that’s a $35,750 personal ceiling — the most you can contribute from your own pay at any age.
3. The Roth catch-up mandate takes effect. High earners can no longer make pre-tax catch-up contributions. If your 2025 employer wages exceeded $150,000, every catch-up dollar in 2026 must be Roth.

The Super Catch-Up for Ages 60–63

This is the most generous window the tax code offers a retirement saver. In the calendar years you turn 60, 61, 62, or 63, your catch-up rises from $8,000 to $11,250, pushing your personal maximum to $35,750 for 2026.

The key detail people miss is that it’s a four-year window, not a permanent step up. The moment you turn 64, your catch-up reverts to the standard $8,000, and your personal max drops back to $32,500. So if you’re in or approaching that band and can afford it, the planning angle is simple: max it aggressively while the window is open.

Two caveats. First, your plan has to actually offer the super catch-up — most large plans do, but confirm with your administrator. Second, the super catch-up is still a catch-up, which means the new Roth rule applies to it: a high earner using the super catch-up must route that $11,250 into Roth dollars.

The New Roth Catch-Up Rule for High Earners

This is the rule that will surprise the most people in 2026. Under the SECURE 2.0 Act, if your prior-year wages from your employer were high enough, you lose the choice to make pre-tax catch-up contributions — they must be Roth.

Who’s affected

The trigger is more than $150,000 in 2025 FICA (Social Security) wages from the employer that sponsors your plan. A few precise points:

• It’s based on prior-year wages (2025), not your 2026 income.
• It’s measured per employer. Wages from the employer whose plan you’re in are what count, so changing jobs can change your status — see the section below on job changes.
• It uses your FICA wages — the number reported as Social Security wages, in Box 3 of your W-2 — not your total income, AGI, or the number in Box 1. (Under the good-faith transition standard, some plans may still reference Box 5 Medicare wages for 2026, but Box 3 is the figure the final regulations point to.)
• It includes bonuses and commissions, along with regular salary — anything reported as FICA/Social Security wages counts, not just base pay.
• The $150,000 figure is indexed for inflation; it rose from $145,000 and will continue to adjust over time.

The surprising part: no Roth option means no catch-up

If your plan doesn’t offer a Roth 401(k) feature and you’re over the wage threshold, the rule doesn’t quietly let you make a pre-tax catch-up instead — it means you can’t make a catch-up contribution at all until the plan adds Roth. That’s a real risk for older high earners at smaller employers whose plans never adopted a Roth source. And no, you can’t split the difference — once you’re over the threshold, you can’t choose to keep part of your catch-up pre-tax; the whole catch-up amount has to be Roth.

What to do

• Confirm your plan offers a Roth 401(k) source. If you’re over the threshold and it doesn’t, raise it with HR now.
• Check your elections. Some payroll systems will auto-redirect catch-up to Roth (a “deemed election”); others won’t. Make sure your catch-up is correctly designated.
• Plan for the cash-flow hit. Roth contributions are after-tax, so the same catch-up costs you more in take-home terms. Budget for it.

One practical note: the rule is in force for 2026, but the IRS is applying a good-faith compliance standard while plan amendments catch up — some administrative deadlines extend to December 31, 2026. Confirm how and when your specific plan is applying the rule.

Why Are High Earners Pushed Into Roth? (And Is It Bad?)

The logic is about timing tax revenue. A pre-tax catch-up gives you a deduction today; forcing high earners into Roth means the government collects that tax now rather than decades later. For higher-income workers — who get the largest dollar benefit from a deduction — that’s where the most revenue sits.

But here’s the honest trade-off: it isn’t necessarily bad for you. You lose the upfront deduction, yes. In exchange you get tax-free growth and tax-free withdrawals in retirement, and — thanks to a separate SECURE 2.0 change — Roth 401(k) balances no longer face required minimum distributions during your lifetime, the way pre-tax balances do.

For someone who expects to be in a similar or higher tax bracket later, or who wants tax diversification and a cleaner estate, mandatory Roth can be a feature, not a bug. Whether pre-tax or Roth wins for you comes down to your bracket now versus later — the same question covered in Roth vs. traditional. High earners weighing Roth conversions should also watch the income thresholds in the 2026 IRMAA brackets, since extra taxable income can raise Medicare premiums.

High Earners, Roth IRAs & the Backdoor Roth

The Roth catch-up mandate applies to employer plans only — your 401(k), 403(b), or 457(b). It does not touch IRAs. But high earners hit a different wall with Roth IRAs: income limits.

For 2026, your ability to contribute directly to a Roth IRA phases out at these MAGI ranges:

• Single / head of household: $153,000 to $168,000 (no direct contribution above $168,000).
• Married filing jointly: $242,000 to $252,000 (no direct contribution above $252,000).

Above those ceilings, the backdoor Roth is still allowed in 2026: you contribute to a traditional IRA (no income limit on the contribution itself) and convert it to Roth. There’s no current legislation eliminating it. Watch the pro-rata rule, which can make the conversion partly taxable if you hold other pre-tax IRA money.

If you’re setting one up, compare providers in our guide to the best Roth IRA accounts.

The Mega Backdoor Roth: Using the Full $72,000

Once you’ve maxed the $24,500 employee deferral and your employer’s match is in, you’re often nowhere near the real ceiling. The combined employee-plus-employer Section 415(c) limit is $72,000 for 2026 (under 50), or $80,000 to $83,250 with catch-up. The gap between what you and your employer put in and that $72,000 number is where the mega backdoor Roth lives.

Here’s the mechanism: if your plan allows after-tax contributions (a separate bucket from your regular pre-tax or Roth deferrals) and offers in-plan Roth conversions or in-service withdrawals, you can contribute after-tax dollars up to that $72,000 combined cap, then convert them to Roth — often on a rolling basis so the growth stays untaxed.

For example: you defer $24,500, your employer contributes $20,000 in match and profit-sharing, that leaves $27,500 of room. If your plan supports it, you could add that $27,500 as after-tax contributions and convert it, effectively supercharging your Roth savings well beyond the standard IRA and 401(k) limits.

Don’t skip the 5-year rule. Every Roth account — including one built through a mega backdoor strategy — has its own 5-year clock: the account must be open at least 5 tax years before earnings can come out tax- and penalty-free, even if you’re already past retirement age. Converting regularly resets the clock only for the newly converted amount, not your original contributions, so start the clock as early as possible rather than waiting until your final working years to begin.

Changed Jobs in 2026? The Per-Employer Wage Rule and the True-Up Trap

Two separate issues come up for anyone switching employers this year, and both are easy to miss.

The wage threshold resets with a new employer

Because the $150,000 Roth catch-up trigger is measured per employer using that employer’s prior-year wages, a high earner who moves to a new company can legitimately fall outside the mandate at the new job — at least for a stretch. If you earned over $150,000 at your old employer in 2025 but joined a new employer where your 2025 wages (from them specifically) were $0 or under the threshold, the new plan may not be required to treat your catch-up as Roth-only, since the rule looks at wages from the employer sponsoring the plan you’re contributing to. This is a genuine wrinkle in how the rule is written — but it’s also exactly the kind of thing plan administrators and the IRS’s good-faith standard are actively working through, so don’t assume it applies to you without checking with the new plan’s administrator.

The true-up trap

Separately, if you front-load your $24,500 employee limit early in the year and then switch jobs, you risk losing employer match dollars at the new company if it calculates match per pay period rather than offering a “true-up” at year-end. Ask both your old and new employer’s HR whether the plan offers a true-up contribution, and consider pacing your deferrals evenly across the year in a job-change year so you don’t hit your personal limit before your employer’s match does.

Also remember: the $24,500 employee limit is per person, not per plan. If you contributed to a 401(k) at your old job and another at your new one in the same year, your combined elective deferrals across both still can’t exceed $24,500 (or your age-adjusted max).

2026 Limits by Account Type

The 401(k) gets the headlines, but the IRS adjusted nearly every retirement account for 2026. Here’s the full picture.

Self-employed? The solo 401(k) often lets you contribute far more than a SEP at the same income, because you can add both employee deferrals and employer profit-sharing.

Is the Roth catch-up mandatory for self-employed people in 2026?

Generally no, not in the same forced way. The Roth catch-up mandate is written around employer-sponsored plans covering common-law employees, so solo 401(k) owner-only plans generally aren’t subject to the same forced-Roth mechanics a large employer’s plan is. Rules and provider implementations still vary, so confirm the details directly with your solo 401(k) provider before assuming you’re exempt.

How Much Should You Actually Contribute?

Maxing out isn’t always the first move. A sensible 401(k) max-out strategy for 2026 generally follows this order of operations:

1. Capture the full employer match first. If your employer matches up to 5% and you contribute less, you’re leaving free money on the table — that’s an instant, guaranteed return no investment can promise. (Employer match dollars don’t count toward your personal $24,500 limit — they fall under the larger combined Section 415 cap instead.)
2. Then work toward the $24,500 base. Even a one- or two-percent bump in your deferral rate compounds meaningfully over a career.
3. Mind the combined cap. Employee plus employer contributions under Section 415(c) can’t exceed $72,000 (under 50), $80,000 (50–59 and 64+), or $83,250 (60–63) for 2026.
4. Balance Roth and pre-tax. If you’re not forced into Roth, split based on whether you expect higher or lower taxes later. Many savers hold some of each for flexibility.
5. If you still have room, look at the mega backdoor Roth. High earners who max the base and get a modest match often still have space left under the $72,000 ceiling — see above.

Not sure where you stand? Compare against average retirement savings by age, and if you’re nearing retirement, think about how contributions fit into broader retirement income planning.

Over-Contributed? How to Fix an Excess 401(k) Contribution

If you realize late in the year — or after switching jobs mid-year — that you’ve put in more than your personal limit across all your plans, don’t wait. The fix is a corrective distribution of the excess amount (plus any earnings on it), requested through your plan administrator.

• Deadline: the excess plus earnings generally needs to be withdrawn by April 15 of the following year (your tax filing deadline) to avoid the worst outcome.
• If you miss the deadline: the excess is effectively taxed twice — once in the year it was contributed, and again when it’s eventually distributed — on top of a 6% excise tax for each year it stays in the account.
• How to request it: contact your plan’s recordkeeper directly and ask for a “corrective distribution” or “return of excess contribution” for the specific tax year.

This is the exact situation that catches job-switchers: two employers, two plans, and nobody tracking the combined total but you.

Common 401(k) Mistakes to Avoid in 2026

• Leaving the match on the table. Contributing below your match rate is the single most expensive 401(k) mistake — and the easiest to fix.
• Being a high earner who never checks for a Roth option. If you’re over $150,000 in 2025 wages and your plan has no Roth source, you may be unable to make any catch-up at all. Confirm before you assume.
• Missing the 60–63 super catch-up window. Those four years allow $35,750 of personal contributions; once you turn 64 the chance is gone.
• Over-contributing across multiple employers. The $24,500 employee limit is per person, not per plan. If you switched jobs or run two plans, your deferrals across all of them count toward the same cap — see changing jobs and fixing an excess contribution above.
• Assuming a true-up exists. Not every plan restores match dollars lost to front-loaded contributions. Ask before you front-load.

Frequently Asked Questions