Form 8594 is a tax document required in certain business sales where the buyer acquires assets rather than stock or equity. Release and certification forms.Line 1: Enter the name, address, and Tax Identification Number (TIN) of the other party (either the purchaser or seller). Use Form 4797 to report: The sale or exchange of property. The involuntary conversion of property and capital assets. This short-form asset purchase agreement is for use in the sale of a seller's assets for cash. A taxable asset purchase allows the buyer to "step up," or increase, the tax basis of the acquired assets to reflect the purchase price.