2024 Maximum 401k Contribution Catch Up 2024.  — the 2024 contribution limit for 401 (k) plans is $23,000, up from $22,500 in 2023.  — the 401(k) contribution limit for 2024 is $23,000.

The limit on employer and employee contributions is $69,000. The 401 (k) compensation limit is $345,000.