401k Max 2024 After Tax Refund. Workers who contribute to a 401 (k), 403 (b), most 457 plans and the federal government’s thrift savings plan can contribute up. But if you are age 50 or older, you can take.

Contributing to a traditional 401 (k) could help reduce your taxable income now, but in most cases, you’ll pay taxes when you withdraw the money in retirement. Specifically, you can withdraw up to $1,000 from your qualified plan (e.g., 401 (k), 403 (b), 457 (b)) or ira (including sep, simple ira) once each calendar year.