Employee Contribution Limit 401k 2024 Over 55. In 2022, the most you can contribute to a roth 401(k) and contribute in pretax contributions to a traditional 401(k) is $20,500. For 2024, the 401(k) limit for employee salary deferrals is $23,000, which is above the 2023 401(k) limit of $22,500.

This limit includes all elective employee salary deferrals and any contributions made to a designated roth. I estimate it will go up to $16,500 in 2025.