Both the seller and purchaser of a group of assets that makes up a trade or business must use Form 8594 to report such a sale. A taxable asset purchase allows the buyer to "step up," or increase, the tax basis of the acquired assets to reflect the purchase price.The Purchase Price shall be paid at the Closing as follows: (a). An APA is a legallybinding contract between a buyer and seller that finalizes the terms and conditions of an acquisition.