2024 Irs 401 K Maximum Contribution Limits. Workers who contribute to a 401 (k), 403 (b), most 457 plans, and the federal. 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.
The overall 401 (k) limits for employee and employer. Some retirement plans have lower limits, so check the details of your allowable contributions.