2024 401k Maximum Amount.  — the total overall 401 (k) contribution limit for 2024, which includes employer matching contributions and nonelective contributions, is $69,000. Older workers can defer paying income tax on as much as $30,500 in a 401(k) plan.

This amount is an increase of $500.  — the 401 (k) contribution limits for 2024 are $23,000 for individuals under 50, and $30,500 for those 50 and older.