New 401k Contribution Limits 2024. 401 (k) pretax limit increases to $23,000. As kiplinger has reported, if you are younger than 50, the maximum amount you can contribute to a roth 401(k) for 2024 is $23,000.

The maximum contribution to a 401(k) plan is $23,000 in 2024 if you are younger than 50 years old. The dollar limitations for retirement plans and certain other dollar limitations.