401k 2024 Contribution Limit Irs Over 50. 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 in 2024, a $500 increase.

Key takeaways the irs sets the maximum that you and your employer can contribute to your 401(k) each year. Those 50 and older can contribute an additional.