2024 401k Max Contribution Limits. 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 from. Employees can contribute up to $22,500, up from $22,000 in 2023.

Employee contribution limits for 401(k) have increased for 2024. In 2024, employers and employees together can contribute.