For 2026, the standard employee elective-deferral limit for a traditional or safe harbor 401(k) is $24,500. Eligible catch-up contributions can raise that amount. The employer-and-employee annual-additions limit is a separate rule; it is not extra salary-deferral room.
This guide covers standard workplace 401(k) limits. SIMPLE plans and specialized arrangements have different rules. Your compensation and plan provisions can also affect what you may contribute.
2026 401(k) limits at a glance
| Age attained during 2026 | Standard employee limit | Eligible catch-up | Potential employee total |
|---|---|---|---|
| Under 50 | $24,500 | None | $24,500 |
| 50–59 or 64 and older | $24,500 | $8,000 | $32,500 |
| 60–63 | $24,500 | $11,250 | $35,750 |
Catch-ups depend on eligibility and applicable plan rules. The enhanced age-60–63 amount replaces the ordinary catch-up; the two are not added together. Source: IRS annual contribution-limit tables.
Employee deferrals and the overall plan limit are different
The $24,500 limit concerns your employee elective deferrals. Traditional and Roth employee deferrals share that limit. Employer contributions do not use up the employee limit.
The separate 2026 annual-additions ceiling generally limits the relevant employee and employer contributions to the lesser of $72,000 or 100% of compensation, excluding eligible catch-ups. It does not mean every employee can contribute $72,000 from pay. See the IRS explanation of the two limits.
Work out the remaining contribution per paycheck
A more useful planning question than “What is the maximum?” is “How much would I need to contribute from each remaining paycheck?”
Remaining contribution per paycheck = (applicable employee target − employee deferrals already made) ÷ remaining eligible paychecks.
Hypothetical example: an employee under 50 chooses a $24,500 annual target, has already deferred $10,000, and has 10 eligible paychecks remaining.
($24,500 − $10,000) ÷ 10 = $1,450 per paycheck.
Check: $10,000 + (10 × $1,450) = $24,500.
The result is a planning amount, not an affordability recommendation. It excludes employer contributions and investment returns. Payroll percentages, compensation, other deductions, election cutoffs, and plan restrictions can affect whether that schedule is possible.
Why the age category matters
Under otherwise comparable assumptions, an eligible 61-year-old has a potential employee limit of $35,750, while an eligible 55-year-old has a potential limit of $32,500.
$35,750 − $32,500 = $3,250 of additional potential employee contribution room.
This does not automatically make the larger target appropriate. Check the cash-flow effect and the plan’s available contribution options.
Some catch-up contributions must be Roth
Starting in 2026, a delayed IRS rule officially takes effect requiring participants in plans with Roth features offering catch-ups must make those catch-ups on a Roth basis when prior-year wages with the plan sponsor exceeded $150,000. Ask your administrator how this applies to your payroll and plan. Do not assume all catch-ups reduce current taxable income. Source: IRS catch-up contribution guidance.
Check an employer match using its actual formula
Hypothetical example: eligible annual pay is $100,000 and a plan matches 50% of employee contributions on the first 6% of pay.
6% × $100,000 = $6,000 of employee contributions considered for that match. The modeled employer match is then 50% × $6,000 = $3,000.
The earlier article’s $5,000 result did not match those assumptions. Actual plan definitions, payment timing, and vesting provisions must be checked in the plan documents. A match is a contribution benefit; it is not a guaranteed investment return.
Changing jobs or correcting an excess
Generally, employee elective deferrals must be aggregated across participating plans when checking the individual limit. Do not assume a new job resets it. Keep records from each employer.
If you suspect excess elective deferrals, contact your administrator promptly. IRS guidance discusses distributing the excess, adjusted for earnings, by April 15 of the following year. That deadline is not extended simply because your tax-return filing date is extended. Do not apply the article’s former blanket “6% yearly penalty” claim to these deferrals. Different types of excess require different corrections. See IRS excess-deferral guidance.
Use the limit as a boundary for your plan
Decide an affordable target using your current obligations, reserves, goals, and available payroll options. The legal ceiling is not a prescription to maximize contributions.
For the broader context, visit the retirement planning guide. To explore an assumed long-term savings path, use the retirement calculator; check its methodology and distinguish projections from legal contribution limits.
Questions to ask your plan administrator
- Which limit and catch-up category apply to me?
- Does the plan support the contributions I am considering?
- How much have I already deferred this year?
- What payroll cutoff applies to election changes?
- Does the matching formula or payment timing affect my schedule?
Correction note: This revision replaces incorrect 2026 limits, clarifies the enhanced catch-up category, corrects the employer-match example, and removes misleading blanket excess-deferral guidance.
Written by Max Fonji. Reviewed September 29, 2026. This article provides general education, not individualized tax or financial advice. Confirm how the rules apply with your plan administrator or a qualified tax professional.