401k 2024 Tax Year Limitation. The 401 (k) contribution limit 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.
Workers who contribute to a 401 (k), 403 (b), most 457 plans and the federal government’s thrift savings plan can contribute up to $23,000. 401 (k) contribution limits for 2024.