401k Contribution Limits 2024 Fidelity. In 2024, the 401 (k) contribution limit for participants is increasing to $23,000, up from $22,500 in 2023. In comparison, the 401(k) contribution limit is $23,000 a year.

Ira/ roth contributions go up to $7,000 from $6,500. 401(k) contribution limits for 2024.