The purpose of the Certificate is to document the purchase of tangible personal property for resale in the purchaser's regular course of business. Arizona transaction privilege tax (TPT) is a tax on the vendor for the privilege of doing business in the state.Purchase and Sale Agreement. A purchase and sale agreement is a contract between a buyer and seller for transacting a property in exchange for a specific price. Use a Business Bill of Sale to set out the terms for the sale of a business and transfer the ownership and all assets to the buyer. 3. Property. Fill out the street (physical) address of the property the buyer is purchasing. Include any unit or apartment number, if applicable. When are property taxes in Arizona due? Number of days in the real property tax year that you owned the property, 125. 1. They seek the advice and assistance of a qualified real estate agent, licensed to do business in the State of.