401k And Roth 401k Contribution Limits 2024. 401(k) contribution limits in 2024 and 2025 for 2025, the 401(k) limit for employee salary deferrals is $23,500, which is above the 2024 401(k) limit of $23,000. While the increase may seem modest, it’s a step in the right direction.

The maximum amount you can contribute to a roth 401(k) for 2024 is $23,000 (if you’re younger than age 50). You had to take required minimum distributions (rmds) on roth 401(k) accounts, just like regular ira and other retirement accounts.