Maximum 401k Contributions 2024. In 2024, the contribution limit for a roth 401 (k) is $23,000, plus an additional contribution of $7,500 if you are age 50 or older. Some retirement plans have lower.

For 2024, your personal contributions cannot exceed $23,000 or $30,500 if you are age 50 or older. The contribution limit for simple 401 (k)s is $16,000 (up to $19,500 if you’re 50 or older).