2024 401k Max Catch Up Plan. For those with a 401 (k), 403 (b), or 457 plan through an employer, your new maximum contribution limit will go up to $23,000 in 2024. The 401 (k) contribution limit for 2024 is $23,000.
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. Those 50 and older can contribute an additional $7,500.