401k Limit 2024 Roth. For 2024, the 401 (k) contribution limit for employees is $23,000, or $30,500 if you are age 50 or older. In 2024, you can contribute $23,000 to the roth portion of your solo 401 (k).

The maximum amount you can contribute to a roth 401(k) for 2024 is $23,000 if you’re younger than age 50. 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.