401k Catch Up 2024 Limits 2024. 401k and retirement plan limits for the tax year 2024. (that contribution limit is up $500 from 2023.

For more information see roth 401(k) contribution. 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.