Max 401k Contribution 2024 And Catch Up. That limit also applies to 457, 403(b) and the federal government’s thrift savings. 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.

For 2024, the maximum 401(k) contribution limit is $23,000 for individuals under the age of 50. There’s also a $7,500 catch.