Both the seller and purchaser of a group of assets that makes up a trade or business must use Form 8594 to report such a sale. 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. â–¶ Attach to your income tax return. Both parties are required to file Form 8594 alongside their respective tax returns to report the tax consequences of the asset acquisition accurately. Both the buyer and seller must file Form 8594 with their respective tax returns for the year of the transaction. Internal Revenue Service (IRS) form 8594 is an "Asset. Acquisition Statement" that must be completed and filed with the.