Irs 2024 Max 401k Contribution Limits. That's an increase from the 2023 limit of $330,000. The 401 (a) compensation limit (the amount of earned income that can be used to calculate retirement account contributions) will increase from $330,000 in 2023 to $345,000 in.
$19,500 in 2020 and 2021 and $19,000 in 2019), plus $7,500 in 2023; This amount is up modestly from 2023, when the individual 401 (k).