2024 415c Contribution Limit. The highlights of limitations that changed from 2023 to 2024 include the following: The total employee contribution limit to all 401(k) and 403(b) plans for those under 50 will be going up from $23,000 in 2024 to $23,500 in 2025.

100% of the participant’s gross compensation the 415(c) limit. Section 415 of the internal revenue code (code) provides for dollar limitations on benefits and contributions under qualified retirement plans.