Form 8594 is a tax document required in certain business sales where the buyer acquires assets rather than stock or equity. Form 8594 must also be filed if the purchaser or seller is amending an original or a previously filed supplemental Form.8594 because of an increase or decrease. The Comprehensive Annual Financial Report (CAFR) of Alameda County (the County) for the year ended. The most useful item to aid in completing the form is an accurate and up to date asset listing.