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.Enter your name and taxpayer identification number (TIN) at the top of the form. We're preparing form 8594. There's a non-compete agreement associated with the purchase of business assets, but no value. Instructions for Completing the Asset Disposal Form. Identify the item(s) to be removed from your department. Learn how to file form 8594 and when to file. Form 8594 is a tax document required in certain business sales where the buyer acquires assets rather than stock or equity.