401k Contribution Limits for Married Filing Jointly

Filing jointly does not create a special or higher cap, because 401(k) contribution limits for married filing jointly are simply the individual limits applied to each spouse. For 2026, each spouse with access to a workplace plan can defer up to $24,500 of salary, meaning a two-earner household can shelter as much as $49,000 in employee deferrals before catch-up contributions come into play.¹ Your spouse’s contributions have no effect on your personal ceiling, and yours have none on theirs.

The Per-Spouse Deferral Cap for 2026

Every employee gets their own $24,500 limit on money redirected from paychecks into a 401(k) for 2026.² That cap covers pre-tax deferrals and designated Roth deferrals combined. You can split the $24,500 between the two buckets however you like, but the total can’t exceed the limit.³ Put $16,000 in pre-tax and $8,500 in Roth, and you’re done for the year.

Filing method doesn’t touch this number. Joint, separate, single — the per-person cap is $24,500. So when both spouses work and each employer offers a plan, the household number is straightforward addition. Two people, two limits, up to $49,000 in deferrals before anyone turns 50.

How Catch-Ups Change the Math After 50

Anyone who turns 50 or older by the end of the calendar year can add $8,000 on top of the standard $24,500, for a personal maximum of $32,500 in 2026.² Two spouses both over 50 can therefore reach $65,000 in combined employee deferrals.

One spouse’s catch-up eligibility has nothing to do with the other’s. A 52-year-old married to a 45-year-old means one person defers up to $32,500 and the other up to $24,500, for $57,000 combined.

The Larger Catch-Up for Ages 60 Through 63

Workers aged 60, 61, 62, or 63 get a bigger catch-up: $11,250 instead of $8,000, courtesy of SECURE 2.0.⁴ That takes total employee deferrals for someone in this band to $35,750. Once you hit 64, you drop back to the standard $8,000 catch-up.

A couple both sitting in that 60-to-63 window can defer $71,500 between them. It’s a short runway of extra room right before retirement.

Roth Requirement for Higher-Earning Catch-Up Contributors

Starting in 2026, a catch-up wrinkle applies to anyone who earned more than $145,000 in FICA wages from their employer during the prior year. Those workers must make catch-up contributions on a Roth (after-tax) basis; pre-tax catch-ups are off the table for them.⁵ Employees under that wage threshold still get to choose. The base $24,500 deferral itself stays unrestricted either way.

Adding Employer Contributions to the Picture

The $24,500 is just what you defer from your own paycheck. A second, higher ceiling — the Section 415 limit — caps everything flowing into your account, including your deferrals, employer match, and any profit-sharing. For 2026, that combined total tops out at $72,000 per person per employer.⁶ Your spouse’s plan is a separate universe with its own $72,000 ceiling.

Catch-up dollars sit outside that $72,000. So a worker 50 or older can see up to $80,000 in total annual additions ($72,000 plus $8,000), and someone 60 to 63 can reach $83,250.⁶ Total annual additions can’t exceed 100% of your compensation from that employer either, so the number is bounded by what you actually earn there.

Most people never come near the $72,000 total. Reaching it takes generous employer contributions on top of a maxed-out deferral. If your employer has a meaningful profit-sharing component, though, the math is worth checking so you don’t get hit with corrective distributions later.

When Only One Spouse Has a 401(k)

A 401(k) is employer-sponsored, so a spouse without a job or without access to a plan can’t contribute to one. There is no way to add someone to your workplace plan. The workaround is the spousal IRA: if you file jointly, a spouse with little or no earned income can fund a traditional or Roth IRA based on the working spouse’s compensation.

For 2026, the IRA contribution limit is $7,500, or $8,600 if the contributing spouse is 50 or older.⁷ Combined IRA contributions for both spouses can’t exceed the couple’s total taxable compensation on the joint return. The $7,500 cap is a fraction of the $24,500 available through a 401(k), which is why losing employer plan access is such a hit to retirement savings capacity for a household.

No Income Cap on Roth 401(k) Contributions

High-earning couples often assume Roth savings are off-limits because of the Roth IRA phase-outs. That’s true for Roth IRAs but not for Roth 401(k)s, which have no income restriction at all.³ A couple with a combined AGI of $500,000 can each direct the full $24,500 into a designated Roth 401(k) if their plans permit it.

By contrast, Roth IRA contributions for joint filers phase out between $242,000 and $252,000 of modified AGI for 2026.² For high-income households, the Roth 401(k) is one of the few direct routes to getting after-tax dollars into a Roth account.

Some plans also allow after-tax contributions above the $24,500 deferral cap that can be converted to Roth (sometimes called a mega backdoor Roth). Those after-tax dollars, combined with deferrals and employer contributions, still have to fit under the $72,000 Section 415 limit. Not all plans offer the feature, so check the plan documents.

Watch-Outs That Trip Up Couples

Changing Jobs Mid-Year

The $24,500 employee deferral limit follows you as a person across every employer plan you participate in during the calendar year. It doesn’t reset at a new job.⁸ Defer $10,000 at your old employer before leaving, and the new employer’s plan can accept at most $14,500 from you for the rest of the year.

Your new employer’s payroll has no visibility into what you contributed at the old one, so tracking that ceiling is on you. The same rule applies to catch-up contributions. Note that the $72,000 Section 415 limit works differently: it applies per employer, so two unrelated employers can each independently host up to $72,000 in total contributions to your account.⁸ Only the employee deferral is a single personal cap across all plans.

Highly Compensated Employees Can Get Refunds

Some higher-paid workers set their deferral at $24,500 and never actually reach it. Nondiscrimination rules — specifically the Actual Deferral Percentage (ADP) test — prevent plans from disproportionately benefiting highly compensated employees when rank-and-file workers save little.⁹ For 2026, you’re an HCE if you earned more than $160,000 from the employer in the prior year.²

When the test fails, the plan corrects it by refunding excess contributions to HCEs, typically the following spring. Safe-harbor plan designs bypass the test in exchange for minimum employer contributions to all participants. If your plan isn’t a safe harbor and you cross the HCE threshold, your actual contribution may end up short of the IRS ceiling. In a dual-high-income marriage, both spouses can hit this at their respective employers.

Fixing an Over-Contribution

Deferring more than $24,500 in a year — from miscounting, from mid-year job changes, or from participating in two plans at once — has to be corrected by April 15 of the following year. You request a corrective distribution from one plan for the excess plus any earnings on it.¹⁰

Miss April 15 and the excess gets taxed twice, once in the contribution year and again when withdrawn from the plan.¹⁰ A filing extension does not extend this deadline. The fix is running your own tally of deferrals across every plan during the year.

2026 Numbers at a Glance for a Joint-Filing Couple

Assuming both spouses have access to a 401(k), here’s how the ceilings stack up:

Both under 50: $24,500 each in deferrals, or $49,000 combined. Up to $72,000 each including employer contributions.
Both 50 or older, but not 60 through 63: $32,500 each in deferrals ($24,500 plus $8,000 catch-up), or $65,000 combined. Up to $80,000 each including employer contributions.
Both aged 60 through 63: $35,750 each in deferrals ($24,500 plus $11,250 enhanced catch-up), or $71,500 combined. Up to $83,250 each including employer contributions.⁶

The limits are individual, so spouses at different ages mix freely. A 62-year-old married to a 48-year-old gets $35,750 and $24,500 respectively. Use each person’s age at the end of the calendar year, and confirm the current figures each year before setting your payroll elections, since the IRS updates them for inflation.

1
Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500
2
Internal Revenue Service. 2026 Amounts Relating to Retirement Plans and IRAs
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Internal Revenue Service. Roth Comparison Chart
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Internal Revenue Service. COLA Increases for Dollar Limitations on Benefits and Contributions
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Internal Revenue Service. Treasury, IRS Issue Final Regulations on New Roth Catch-Up Rule, Other SECURE 2.0 Act Provisions
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Internal Revenue Service. Retirement Topics – 401(k) and Profit-Sharing Plan Contribution Limits
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Internal Revenue Service. Retirement Topics – IRA Contribution Limits
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Internal Revenue Service. How Much Salary Can You Defer if You’re Eligible for More Than One Retirement Plan
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eCFR. 26 CFR 1.401(k)-2 – ADP Test
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Internal Revenue Service. Consequences to a Participant Who Makes Excess Deferrals to a 401(k) Plan