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 if goodwill or going concern value. Generally, attach Form 8594 to your income tax return for the year in which the sale date occurred.Form 8594 is a tax document required in certain business sales where the buyer acquires assets rather than stock or equity. Did you buy or sell a business during the tax year? If so, you may need to file IRS Form 8594 with your federal tax return. Form 8594, Asset Acquisition.