2024 401k Catch Up Contribution Limits 2024. The 401 (k) contribution limits for 2024 are $23,000 for individuals under 50, and $30,500 for those 50 and older. For 2024, employees can defer up to $23,000 into 401 (k) plans, up from $22,500 in 2023, with an extra $7,500 for workers age 50 and older.

Contribution limits for a roth 401 (k) are the same as for a traditional 401 (k). The contribution limits for individual retirement accounts (iras).