Catch Up 401k 2025 Over 50. Let’s say you happened to turn 50. If you're age 50 or.

For 2025, the maximum you can contribute to a simple 401 (k) is $16,000. Starting in 2025, 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.