Send the Form 8594 that was issued to you. If the form is incomplete, you should contact whoever prepared it for assistance (or a local CPA).
See Instructions for Form 8594 (12/2012).
Generally, attach Form 8594 to your income tax return for the year in which the sale date occurred.
If the amount allocated to any asset is increased or decreased after the year in which the sale occurs, the seller and/or purchaser (whoever is affected) must complete Parts I and III of Form 8594 and attach the form to the income tax return for the year in which the increase or decrease is taken into account.
