2024 Maximum 401k Contribution Over Age 50. The total of all employee and employer contributions per employer will increase from $66,000 in 2023 to $69,000 in 2024 for those under 50. If you are over age 50, you can contribute an additional $7,500.

The base 2024 maximum 401k contribution limit for employees is $23,000 (+$500 versus 2023). 2024 401k contribution limit over 50 eula.