2025 401k Max Salary Increase. Four crucial parts of the secure 2.0 act will take effect in 2025, adding to a sweeping list of changes already enacted by the retirement law. Below you will find an overview of the current 401(k) contribution limits for 2024 and the updated limits for 2025.

The maximum amount a single person can contribute from their salary to their 401k plan is expected to increase almost $1000, which will make a total of $24,000 in 2025,. Additionally, the total contribution limit for defined contribution.