Use Form 8883 to report information about transactions involving the deemed sale of corporate assets under section 338. â–« Seller reports Adjusted Deemed Sales Price (as determined under Treas.Generally, both the purchaser and seller must file Form 8594 and attach it to their income tax returns (Forms 1040, 1041, 1065, 1120, 1120-S, etc.) Page 34. hPurcase. 33. Form 8594 is a tax document required in certain business sales where the buyer acquires assets rather than stock or equity. Unless Seller elects the installment method or is eligible for the "open transaction" method, Seller must use the "closed transaction" method. Line 1: Enter the name, address, and Tax Identification Number (TIN) of the other party (either the purchaser or seller).