Maximum 401k Contributions 2024 Over 55. Highly compensated employees (hces) may face special restrictions on 401 (k) contributions. The maximum amount a single person can contribute from their salary to their 401k plan is expected to increase almost $1000, which will make a total of $24,000 in.

New updates to the 2023 and 2024 401k contribution limits. In 2024, the total contribution limit.