2024 401k Contribution Limit Catch Up Over 55. In 2024, the maximum 401(k) contribution limit is $23,000 for people under the age of 50. 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 401(k) contribution limit is $23,000 in 2024. For 2024 and 2025, that amount is an additional $7,500 within the.