2024 Max 401k Employee Contribution. Those 50 and older can contribute. Employees 50 or older can contribute up to $30,500 with catch.

 — starting in 2024, employees can contribute up to $23,000 into their 401 (k), 403 (b), most 457 plans or the thrift savings plan for federal employees, the irs announced nov.  — 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.