Maximum 401k Contribution 2024 Over 55. The 401 (k) contribution limits for 2024 are $23,000 for individuals under 50, and $30,500 for those 50 and older. For the tax year 2024, the maximum amount that an employee can contribute to their 401 (k) retirement plan is $23,000.

The overall 401 (k) limits. Those 50 and older will be able to.