Maximum Contribution To 401k 2025. If you're age 50 to 59 or 64. The elective deferral limit for employees who participate in 401 (k), 403 (b), most 457 plans, and the federal government's thrift savings.

In 2025, you can defer up to $23,500 from your salary, with a total maximum contribution from all sources reaching. 401 (k), 403 (b), 457 plans: