2024 Max 401k Contribution Employer Contribution. For 2024, the maximum 401 (k) contribution limit is $23,000 for individuals under the age of 50. The 2025 401 (k) contribution limit increased to $23,500, up from $23,000 in 2024.
401 (k) contribution limits in 2024 and 2025. Employees age 50 and older can contribute an additional $7,500 for a total.