Free Dog/Puppy Bill of Sale Form | PDF | Word () Dog/Puppy Bill of Sale. The dog bill of sale should be used as a receipt for an exchange of monetary funds for the ownership of a pooch. If the dog is more than a year old, any registration tags or ownership/identification cards should be transferred with the sale. If it is a puppy, any veterinarian shots and previous appointments should be obtained by the owner. Free Dog/Puppy Bill of Sale Form - Word | PDF | eForms Dog/Puppy Bill of Sale Form. The dog or puppy bill of sale is for the legal transfer of the animal from an individual or breeder (the “Seller”) and an individual or entity seeking to pay the purchase price (the “Buyer”). The document can be signed with a deposit being made for a sale at a later date..