2025 401k Limits Contribution Age. The contribution limit will increase to $23,500, up from $23,000 in 2024. The 401(k) contribution limit for 2025 is $23,500 for employee salary deferrals, and $70,000 for the combined employee and employer contributions.

401 (k), 403 (b), 457 plans: For 2025, the annual employee contribution limit for 401 (k) plans is set to increase from $23,000 in 2024 to a record high of $23,500.