2025 401k Limits Catch Up Contribution. Additionally, starting in 2025, plans may. In 2025, the 401 (k) contribution limit for participants is increasing to $23,500, up from $23,000 in 2024.
The 401k contribution limits for the year 2025 are expected to see many increases in different plans including elective deferral limit to $24,000, defined contribution. In particular, participants can now elect to defer up to $23,500 to 401(k), 403(b), and 457(b) plans in 2025 compared to $23,000 in 2024.