Generally, both the purchaser and seller must file Form 8594 and attach it to their income tax returns (Forms 1040, 1041,. Form 8594 is a tax document required in certain business sales where the buyer acquires assets rather than stock or equity.Learn how to file form 8594 and when to file. Yes. State law requires that all business owners file a business personal property rendition annually. For a list of forms and schedules available in ATX, please click on federal forms or select a state.