2024 401k Contribution Limit. 401(k) contribution limits in 2023 and 2024. The 401 (k) contribution limit is $23,000 in 2024.

Those 50 and older can contribute an additional. Workers who contribute to a 401 (k), 403 (b), most 457 plans and the federal government’s thrift savings plan can contribute up to $23,000 in 2024, a $500 increase.