Irs Max 401k 2024 Catch Up. The 2024 contribution limit for 401(k) plans is $23,000, up from $22,500 in 2023. 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.

All new limits will go into effect jan. 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.