401k 2024 Contribution Limits Over 50. 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. The 401(k) contribution limit for 2025 is $23,500, up from $23,000 in 2024.
Employees can contribute up to $23,500 to their 401(k) plan for 2025 vs. The combined limit for employee and employer contributions is $69,000.