2025 401k Contribution Limit Catch Up. That's on top of the standard $23,500 limit for everyone else,. In 2025, the 401(k) contribution limit for participants is increasing to $23,500, up from $23,000 in 2024.
Maximum contribution limits for 401(k) plans are rising by $500 for many workers in 2025. 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.