401k Limit 2025 Roth. If you're age 50 or older, you're. The maximum amount you can contribute to a roth 401(k) for 2025 is $23,000 (if you're younger than age 50).

The maximum amount you can contribute to a roth 401(k) for 2025 is $23,000 (if you’re younger than age 50). Roth 401 (k) employee contributions are limited to $23,000, or $30,500 for those 50 and older, in 2025.