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. Form 8594 is a tax document required in certain business sales where the buyer acquires assets rather than stock or equity.This form provides the IRS with a detailed breakdown of how the purchase price is allocated across different asset categories. 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. Here you will find an updated listing of all Massachusetts Department of Revenue (DOR) tax forms and instructions. Fill in the oval on line 5 if the taxpayer is included in a Form 355U filing. â–· Attach to your income tax return. About Form 1099S, Proceeds from Real Estate Transactions. More In Forms and Instructions.