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.)Form 8594 is a tax document required in certain business sales where the buyer acquires assets rather than stock or equity. You (or the purchaser or transferee) must complete Form CBS-1, Notice of Sale, Purchase, or Transfer of Business Assets.