2024 Max 401k Contribution 50 Year Olds Over 65. 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. The combined limit for employee and employer contributions is $69,000.
Employees can contribute up to $23,500 to their 401 (k) plan for 2025 vs. In 2024, aggregate contributions can reach up to $69,000 if you are under 50 and $76,500 if you are 50 or older.