Irs 401k Deferral Limit 2024. 2024 401k contribution limit and catch up the 2022 contribution limit for a simple ira or 401 (k), which are retirement plans designed for small businesses with 100 or fewer. For 2024, the solo 401(k) maximum contribution limit for the elective deferral is $23,000 if you’re age 50 and under.
It will go up by $500 to. The irs also sets limits on how much you and your employer combined can contribute to your 401 (k).