2024 401k Contribution Max. Changes in inflation affect the limits,. In 2024, the 401 (k) contribution limit for participants is increasing to $23,000, up from $22,500 in 2023.
Participants who are 50+ can save an additional $7,500 in 2024 in. In 2024, 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.