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.)What's New total voting power and value of the stock group's consolidated return for its tax year. Final Regulations under section 338. The 2019 forms and states supported are listed below, along with electronically filed forms and states. New forms and schedules are noted in red text. 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.