Irs Maximum 401k Catch Up Contribution 2024. 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. Be sure to take advantage.

The 401(k) contribution limit for 2023 is $22,500 for employee contributions and $66,000 for combined employee and employer contributions. The limit on total employer and employee contributions for 2023.