2024 Max 401k Contributions. What is the 401(k) contribution limit in 2024? 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.

The dollar limitation for catch. Employees can invest more money into 401 (k) plans in 2024, with contribution limits increasing from 2023’s $22,500 to $23,000 for 2024.