A seller must give all prospective purchasers Form TP153, Notice to Prospective Purchasers of a Business or Business Assets. Find info on the process of selling a business and business lawyers with NYC Bar.The purchase price can include cash, promissory notes, assumptions of liabilities, dividends of cash or assets out of a company before a sale, deferred. You will need to allocate the amount reflected on form 8594 among all the assets. A typical method is to allocate the proceeds based on the original cost. Line 1: Enter the name, address, and Tax Identification Number (TIN) of the other party (either the purchaser or seller).