2024 401k Contributions Catch Up Over 55. 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. The contribution limit for simple 401 (k)s is $16,000 (up to $19,500 if.

These changes impact not only where you can. The contribution limit for simple 401 (k)s is $16,000 (up to $19,500 if.