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. 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.This form is for general instructions that apply to all corporation tax forms. It includes a variety of topics about how to fill out your form. â–· Attach to your income tax return. The return should include the tax due from business operations to the last day of business, as well as any tax collected on assets that you sell. Please fill out this form and let us know how we can be of service. Form 8594 is a tax document required in certain business sales where the buyer acquires assets rather than stock or equity. A seller must give all prospective purchasers Form TP153, Notice to Prospective Purchasers of a Business or Business Assets. Dear Suffolk County Resident: Welcome to the Office of the Suffolk County Comptroller.