dascpa
Level 11

Contrary to what others have posted, I sign every return before mailing, as well as have the software print my name in the signature box. I do this (a) as sometimes a return is printed, corrected, and reprinted; my signature tells me that is the final version, and (b) it shows the clients (who actually look at a return) that I went through each page of the return.  Maybe not required, just my preference.