2024 401k Max Contribution Catch Up. The contribution limit for simple 401 (k)s is $16,000 (up to $19,500 if. The $10,000 limit will also be indexed for inflation.

 — learn how much you can contribute to your 401 (k) plan in 2023 and 2024, and how the irs adjusts the limits annually for inflation. The 401 (k) compensation limit is $345,000.