401k Contribution Limits 2024 Roth. As of 2024, roth 401 (k)s no longer have rmds, offering greater flexibility. The 2024 contribution limit for 401(k) plans is $23,000, up from $22,500 in 2023.

Employees can now defer up to $23,000 into 401 (k) plans for 2024, with an extra $7,500 for workers age 50 and older. In 2024, you can contribute $23,000 to the roth portion of your solo.