Use Form 8883 to report information about transactions involving the deemed sale of corporate assets under section 338. 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.)Unless Seller elects the installment method or is eligible for the "open transaction" method, Seller must use the "closed transaction" method. The sum of the amounts allocated to Classes IV and V are reported in the aggregate on Form 8594. See Appendix A; see also T.D. 8711 (Jan.