2024 401k Contribution Limit 50+. For 2024, you can contribute up to $23,000 to a 401(k) if you're under 50. 401(k) contribution limits in 2023 and 2024.

For 2024, you can contribute up to $23,000 to a 401(k) if you’re under 50. In 2022, the most you can contribute to a roth 401(k) and contribute in pretax contributions to a traditional 401(k) is $20,500.