401k Contribution Limits 2024 Catch Up Date. These contributions are in addition to the regular contribution limit.  — for 2024, you can defer up to $23,000 into 401 (k) plans, up from $22,500 in 2023, with an extra $7,500 for savers age 50 and older.

 — that compares with the $500 boost seen in 2024 over 2023. On nov., 1, 2023, the irs boosted annual contribution limits for 2024 for 401 (k), 403 (b), and most 457 plans.