Roth 401k Limits For 2024 Over Age 50. Roth 401 (k) contribution limits are the same as the traditional 401 (k) limits of $23,000 in 2024, or $30,500 for those 50 and older. The maximum amount you can contribute to a roth 401 (k) for 2024 is $23,000 if you're younger than age 50.

If you’re age 50 and older, you can add an extra $7,500. You can contribute to more than one 401.