401 Maximum Contribution 2025. The 401(k) contribution limit for 2025 is $23,500, up from $23,000 in 2024. The contribution limit for 401(k) plans in 2025 is $23,500.
Those 50 and older could contribute an additional $7,500 in. The 401(k) contribution limit for 2025 is $23,500, up from $23,000 in 2024.