Max 401k Catch Up Contribution 2024 Over 55. Total 401(k) plan contributions by an employee and an employer cannot exceed $69,000 in 2024. Savers will be able to contribute as much as $23,000 in 2024 to a 401 (k), up from $22,500 in 2023, an increase of $500 from 2023.
Up to $7,500 a year. In 2024, employers and employees together can contribute up to $69,000, up from a limit of $66,000 in 2023.