2024 Max 401k Contribution Catch Up Date. In 2024, the contribution limit for 401k plans, including 403 (b) plans, and most 457 plans, will increase to $23,000. The limit on employer and employee contributions is $69,000.
The limit on employer and employee contributions is $69,000. Total 401(k) plan contributions by an employee and an employer cannot exceed $69,000 in 2024.