401(k) Contribution Limits 2026: What You Need to Know

2026 401(k) Contribution Limits at a Glance

The IRS announces new retirement plan contribution limits each fall based on inflation adjustments. Here is the complete breakdown for 2026, based on IRS Notice 2025-67:

According to Vanguard’s “How America Saves 2025” report, only 14% of 401(k) participantscontribute the maximum employee deferral. The average contribution rate is 7.4% of salary — meaning someone earning $100,000 contributes about $7,400, well below the $24,500 limit.

How the Employee Deferral Limit Works

The $24,500 limit applies to the total amount youcontribute to your 401(k) through payroll deductions in 2026. This limit is per person, not per plan — so if you switch jobs mid-year or have multiple 401(k) accounts, your combined contributions cannot exceed $24,500.

Traditional vs. Roth 401(k)

The $24,500 limit is shared between traditional (pre-tax) and Roth (after-tax) 401(k) contributions. You can split the limit however you want:

• Traditional 401(k): Contributions reduce your taxable income now. You pay income tax when you withdraw in retirement.
• Roth 401(k): Contributions are made with after-tax dollars. Qualified withdrawals in retirement are completely tax-free.

The right mix depends on whether you expect to be in a higher or lower tax bracket in retirement. If you are early in your career and expect income growth, Roth contributions often make sense. If you are at peak earnings, traditional contributions provide a larger immediate tax break.

Catch-Up Contributions (Age 50 and Older)

If you turn 50 or older in 2026, you can contribute an additional $8,000 beyond the standard $24,500 limit, bringing your maximum employee contribution to $32,500.

This catch-up provision is designed to help workers who started saving later, but it benefits anyone who can afford to maximize. If you are 50 years old, contributing the full $32,500 in a traditional 401(k) saves you $7,150 in federal income tax(at the 22% bracket) — money that stays invested and growing.

The New SECURE 2.0 Super Catch-Up (Age 60–63)

Starting in 2025 under SECURE 2.0 Act provisions, participants aged 60, 61, 62, and 63 can make a higher catch-up contribution of $11,250 instead of the standard $8,000. This brings the maximum employee deferral to $35,750 for those specific ages.

Note: the super catch-up does not apply at age 64 or older — those participants revert to the standard $8,000 catch-up. This creates a four-year window for accelerated savings during peak earning years immediately before typical retirement age.

Mandatory Roth Catch-Up Rule for High Earners

Under a change from SECURE 2.0 that takes effect in 2026: if your FICA-taxable wages from the plan sponsor were $150,000 or more in the prior year, any catch-up contributions must go into a Roth 401(k) account. This means:

• If you earned $150,000+ in W-2 wages from your employer in 2025, your 2026 catch-up contributions must be Roth.
• If you earned less than $150,000, you can choose between traditional or Roth for your catch-up.
• The rule is based on FICA wages from the specific employer sponsoring the plan, not total household income.

According to the Bureau of Labor Statistics, approximately 18% of full-time workers earn $150,000 or more, so this rule affects a meaningful portion of catch-up-eligible participants.

Employer Match Rules

Your employer’s matching contributions do not count toward your $24,500 employee limit. They count toward the separate $72,000 annual additions limit (employee + employer combined).

Common Match Formulas

The employer match is free money with a guaranteed 50–100% return on investment. Vanguard reports that the average employer match rate is 4.5% of salary. Not contributing enough to capture the full match is the single most common retirement savings mistake.

Roth Employer Match (New Option)

SECURE 2.0 now allows employers to make matching contributions into a Roth 401(k) account (previously, matches could only go to a traditional pre-tax account). If your plan offers this option, you receive the match in after-tax dollars, pay tax on it now, and enjoy tax-free growth and withdrawals in retirement.

After-Tax Contributions and the Mega Backdoor Roth

Some 401(k) plans allow after-tax contributions beyond the $24,500 employee deferral limit, up to the $72,000 annual additions cap. These after-tax contributions are different from Roth contributions:

• Roth 401(k): Subject to the $24,500 deferral limit. Qualified withdrawals are tax-free.
• After-tax 401(k): Can be contributed beyond the deferral limit. Earnings are taxed upon withdrawal.

How the Mega Backdoor Roth Works

If your plan allows after-tax contributions and in-plan Roth conversions (or in-service distributions to a Roth IRA), you can execute a “mega backdoor Roth” strategy:

1. Max out your employee deferral ($24,500).
2. Contribute additional after-tax dollars up to the $72,000 combined limit (minus your deferrals and employer match).
3. Convert those after-tax contributions to Roth immediately.

For example, if you defer $24,500 and your employer contributes $10,000, you can make up to $37,500 in after-tax contributions($72,000 − $24,500 − $10,000) and convert them to Roth. This is one of the most powerful tax-advantaged savings strategies available, but not all plans support it — check with your HR department.

IRA Contribution Limits for 2026 (Comparison)

If your employer does not offer a 401(k), or you want to save beyond your 401(k), IRAs provide an additional tax-advantaged option:

Roth IRA Income Phase-Out Ranges (2026)

• Single/Head of Household: Phase-out begins at $153,000, ends at $168,000
• Married Filing Jointly: Phase-out begins at $242,000, ends at $252,000
• Married Filing Separately: Phase-out begins at $0, ends at $10,000

If your income exceeds these limits, you cannot contribute directly to a Roth IRA, but you can still use the backdoor Roth IRA strategy (contribute to a traditional IRA and convert) or the mega backdoor Roth through your 401(k).

How to Maximize Your 401(k) in 2026

Calculate Your Per-Paycheck Contribution

To max out $24,500 with biweekly paychecks (26 per year), set your contribution to $942.31 per paycheck, or roughly 19.6% of a $125,000 salary. For a $75,000 salary, that is 32.7% — which is aggressive but possible with careful budgeting.

Front-Load vs. Dollar-Cost Average

Some participants front-load contributions early in the year to maximize time in the market. However, if your employer match is applied per-paycheck rather than annually trued up, front-loading could cause you to miss months of matching. Check your plan’s true-up policy before front-loading.

Consider Roth vs. Traditional Based on Your Tax Bracket

For the 2026 tax brackets: if your taxable income puts you in the 22% bracket or below, Roth contributions often make sense because you are locking in a relatively low tax rate. At the 32% bracket and above, traditional contributions provide a larger immediate tax benefit.

For a complete look at the 2026 brackets, see our 2026 Federal Tax Brackets guide.

Frequently Asked Questions