Form 8594 is a tax document required in certain business sales where the buyer acquires assets rather than stock or equity. Form 8594 must also be filed if the purchaser or seller is amending an original or a previously filed supplemental Form.8594 because of an increase or decrease. In an asset sale, Seller and Acquiror each must complete Form 8594, Asset Acquisition Statement. Under Section 1060 (Rev. Feb. In Part IGeneral Information, enter the name, address, and TIN of the other party to the transaction (purchaser or seller). – Both the purchaser and seller are required to file Form 8594. – The Form 8594 must be attached to each filer's timely filed Federal income tax return. As a rule, the starting point for your Arizona return is your federal adjusted gross income. Learn how to file form 8594 and when to file.