2024 Irs 401 K Contribution Limits Over 50. The irs limits how much employees and employers can contribute to a 401(k) each year. 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.
This limit includes all elective employee salary deferrals and any contributions. The total employee contribution limit to all 401 (k) and 403 (b) plans for those under 50 will be going up from $22,500 in 2023 to $23,000 in 2024 (compare that.