2024 401k Contribution Limit Over 50. In 2024, the 401 (k) contribution limit for participants is increasing to. In 2024, employees under age 50 can contribute a maximum of $23,000 to their 401(k) plan.
You can contribute to more than one. The total maximum allowable contribution to a defined contribution plan (including both employee and employer contributions) is expected to rise by $2,000.