2024 401k Limits Over 55. Key takeaways the irs sets the maximum that you and your employer can contribute to your 401(k) each year. 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.

Workers who contribute to a 401 (k), 403 (b), most 457 plans and the federal government’s thrift savings plan can contribute up. Those 50 and older can contribute an additional.