Catch Up 401k Contribution 2024.  — the 2024 contribution limit for 401(k) plans is $23,000, up from $22,500 in 2023. If you're age 50 or.

 — employees can invest more money into 401 (k) plans in 2024, with contribution limits increasing from 2023’s $22,500 to $23,000 for 2024.  — total 401(k) plan contributions by an employee and an employer cannot exceed $69,000 in 2024.