What Is 2024 Maximum 401k Contribution Limit. For those with a 401(k), 403(b), or 457 plan through an employer, your new maximum contribution limit.  — the 401(k) contribution limit for 2024 is $23,000.

For employer sponsored plans, including 401(k)s the 2024 contribution limits will jump to $23,000.  — for 2024, the 401 (k) contribution limit for employees is $23,000, or $30,500 if you are age 50 or older.