Roth 401k Limits 2024 Income Levels. 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. There are no roth 401 (k) income limits, but there is a $23,000 contribution limit for 2024 and other guidelines to know to max your retirement tax advantages.

In 2024, it’s $69,000 ($66,000 in 2023) or $76,500 for employees 50 and older ($73,500 in 2023). Employer contributions are also limited to 25% of an employee’s salary.