Roth 401k Limits 2024 Income Cap. The maximum amount you can contribute to a roth 401(k) for 2024 is $23,000 if you're younger than age 50. The roth ira income limit to make a full contribution in 2024 is less than $146,000 for single filers, and less than $230,000 for those filing jointly.

For 2024, the employee contribution limit for 401(k) plans is $23,000, up from $22,500 in 2023. In 2023, the most you can contribute to a roth 401(k) and contribute in pretax contributions to a traditional 401(k) is $22,500.