2024 401k Limits Over 50. 2024 401 (k) elective deferral limit is $23,000, increasing to $23,500 in 2025. These amounts are unchanged from 2024 and.
Of note, the 2024 pretax limit that applies to elective deferrals to irc section 401 (k), 403 (b) and 457 (b) plans increased from $22,500 to $23,000. There’s a higher 401(k) contribution limit for 2025.