2024 401k Catch Up Contribution Limit. The agency also boosted the contribution maximums for iras and lifted the limit to $7,000 for 2024, up from $6,500 in 2022. 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.

That means a total of $30,500. Employees 50 or older can contribute up to $30,500 with catch.