Deduction question
I sell postage stamps to collectors. Most of my sales are through an Ebay dealer. I give him the stamps, he scans, describes, post on Ebay, collects and ships. For this he takes 40% and I get 60%. Is his 40% tax deductable and should I get something in writing to back this up? Also, where nshould this duction be taken in Turbo Tax?