2025 401k Contribution Limit Age 50. Here's how the 401 (k) plan limits will change in 2025: In 2025, the 401 (k) contribution limit for participants is increasing to $23,000, up from $22,500 in 2023.

In 2025, the 401 (k) contribution limit for participants is increasing to $23,000, up from $22,500 in 2023. In 2025, the contribution limit for a roth 401 (k) is $23,000, plus an additional contribution of $7,500 if you are age 50 or older.