The 2026 401(k) limit is not one number. The amount you can put into a workplace retirement plan depends on your age, the type of plan, whether your employer contributes, and whether your plan allows catch-up contributions.
For most employees, the core 2026 limit is simple: you can defer up to $24,500 of your own pay into a 401(k), 403(b), most 457(b) plans, or the federal Thrift Savings Plan. But older savers may be able to contribute more, and the special age 60-63 rule can create a very different maximum.
If you also want to fund an IRA, see Can You Max Out a 401(k) and IRA in 2026?. If you are self-employed, compare this with the Solo 401(k) contribution calculator for 2026.
2026 401(k) Limits by Age
| Age in 2026 | Employee deferral limit | Catch-up allowed? | Total employee limit |
|---|---|---|---|
| Under 50 | $24,500 | No | $24,500 |
| 50-59 | $24,500 | $8,000 | $32,500 |
| 60-63 | $24,500 | $11,250 | $35,750 |
| 64+ | $24,500 | $8,000 | $32,500 |
The age 60-63 catch-up is often called a “super catch-up.” It applies only if your plan allows catch-up contributions and you attain age 60, 61, 62, or 63 by the end of 2026.
Employee Limit vs Total Plan Limit
The employee deferral limit is the amount you personally choose to defer from payroll. The total defined contribution plan limit is broader. It includes:
- employee pretax deferrals
- employee Roth 401(k) deferrals
- employer matching contributions
- employer nonelective or profit-sharing contributions
- after-tax employee contributions, if the plan allows them
For 2026, the IRS defined contribution plan limit is $72,000, not counting catch-up contributions. This matters most for high earners, business owners, and people using after-tax contributions for a mega backdoor Roth.
Example: Maya is 45 and defers $24,500. Her employer contributes $12,000. Her total annual additions are $36,500, which is below the $72,000 limit. If her plan also allowed after-tax contributions, she could potentially add more, subject to plan rules and the $72,000 cap.
Pretax vs Roth 401(k): Same Limit
Pretax and Roth 401(k) contributions share the same employee deferral limit. You do not get a separate $24,500 limit for each.
For example, if you put $14,500 into a pretax 401(k), the most you can put into the Roth 401(k) side for 2026 is $10,000, for a combined $24,500 before catch-up contributions.
The choice is mainly about tax timing:
- Pretax 401(k): deduction now, ordinary income tax later.
- Roth 401(k): no deduction now, qualified withdrawals tax-free later.
- Mixed approach: useful if you want tax diversification.
Roth Catch-Up Rule for Higher Earners
SECURE 2.0 created a rule requiring certain higher-paid employees to make catch-up contributions as Roth contributions. For 2026, the relevant wage threshold is based on 2025 wages from that employer and is $150,000.
This does not mean every high earner must use Roth for all 401(k) contributions. It applies to catch-up contributions for affected employees, and implementation can depend on plan administration. If your 2025 FICA wages from the employer exceeded the threshold, check your plan notices before assuming your 2026 catch-up can be pretax.
How Much Per Paycheck to Max Out
Divide the target by the number of pay periods left in the year.
| Pay schedule | Under 50: $24,500 | Age 50+: $32,500 | Age 60-63: $35,750 |
|---|---|---|---|
| 26 paychecks | $942.31 | $1,250.00 | $1,375.00 |
| 24 paychecks | $1,020.83 | $1,354.17 | $1,489.58 |
| 12 paychecks | $2,041.67 | $2,708.33 | $2,979.17 |
If your employer match is calculated per paycheck, avoid maxing out too early unless the plan has a true-up feature. Without a true-up, stopping contributions before year-end can cause missed matching dollars.
Common Mistakes
The biggest mistake is confusing the employee limit with the total plan limit. A regular employee usually cannot personally defer $72,000. That larger limit includes employer contributions and certain after-tax contributions.
Another mistake is assuming catch-up contributions are automatic. Your payroll election must be high enough, the plan must permit catch-ups, and payroll must know your age eligibility.
A third mistake is ignoring job changes. The $24,500 employee deferral limit is generally shared across all 401(k)-type plans for the year. If you switch jobs in 2026, your new employer may not know what you already contributed at the old employer.
Bottom Line
For 2026, the standard 401(k) employee limit is $24,500. Savers age 50 or older can generally reach $32,500, while those age 60-63 can potentially reach $35,750. Employer contributions and after-tax contributions are governed by the broader $72,000 annual additions limit.
If you are trying to optimize more than one account, the next step is to coordinate this with IRA eligibility, HSA eligibility, and taxable investing.
Related Reading
- Can You Max Out a 401(k) and IRA in 2026?
- Mega Backdoor Roth 2026: How to Know If Your 401(k) Allows It
- HSA Contribution Limits 2026