dlaery Posted April 10, 2014 Report Share Posted April 10, 2014 I obtained a Form 637 registration and a Fed ID # many years ago. the 1st of the year I changed my business to a LLC SMB. Now I have a new Fed ID#. what does that do to my Form 637 Reg.? I have consulted tax experts and they are not sure, but think I need to apply for a new Form 637 Reg., which I am going to do unless there is a better way. I have tried to find a phone number to call and haven't had any luck. Has anyone been through this and is this the only way to proceed? thanks, Quote Link to comment Share on other sites More sharing options...