2024 401k Max Catch Up Over 50. Let’s say you happened to turn 50 on december 31, 2024. — 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.
— here’s how the 401 (k) plan limits will change in 2024: Workers who contribute to a 401 (k), 403 (b), most 457 plans, and the federal.