Max 401k Catch Up Contribution 2025. The 401 (k) compensation limit. Of note, the 2025 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.
Those 50 and older can contribute an additional. For 2025, the 401 (k) limit for employee salary deferrals is $23,000, which is above the 2023 401 (k) limit of $22,500.