2024 Catch Up Contribution 401k. In 2024, you’re able to contribute an additional $7,500 to a 401 (k) each year, so long as you’ve made your contributions by the end of the calendar year. Total 401(k) plan contributions by an employee and an employer cannot exceed $69,000 in 2024.

401(k) (other than a simple. If you’re age 50 or older,.