Comments on How do you pay taxes when you have cashed out your 401K? I am going to give step, by step instructions on how to file your cashed out 401K , (that's a 401K or 403B that you cashed out before the ripe old age of 59 1/2) on your Federal Tax Return. I hope by doing this I will save a future tax payer endless anguish on trying to find out how this is done. TypePad2010-04-15T18:09:44Zlornagrlhttps://lornagrl.blogs.com/lornagrl/tag:typepad.com,2003:https://lornagrl.blogs.com/lornagrl/2010/04/how-do-you-pay-taxes-when-you-have-cashed-out-your-401k-/comments/atom.xml/