2024 401k Limits Contribution Limits. Employers can only use the first $345,000 of compensation to determine your 401 (k). The total employee contribution limit to all 401 (k) and 403 (b) plans for those under 50 will be going up from $23,000 in 2024 to $23,500 in 2025.

(for 2024, those annual limits were $23,000 for a 401(k) and an. The contribution limit for employees who participate in 401k, 403b, and most 457 plans, as well as the federal government’s thrift savings plan is increased to $23,000, up from $22,500.