The Bexar County Purchasing Manual was developed for this purpose. An earnout provision makes the purchase price (typically, some part of it) payable in the future dependent on the buyer's financial performance.Earnout arrangements have important tax implications for both the buyer and seller. This article focuses on the buyer side of the equation. You may fill out the change of address form or simply make the request in writing. You will need to fill out a Civil Case Information Sheet form, which you can get at the courthouse.