Methods and systems are disclosed for providing approved financing in advance of a purchase to a buyer of an item, such as an automobile, and allowing the prospective buyer to maintain control over the financing throughout the sales process. According to disclosed embodiments, a financial service system configures a financing website for the buyer, and receives personal information as well as information relating to the desired item. The financial service system approves loan parameters for the buyer, and provides the user with a link to access the financing website on a mobile device while at a dealership. Financing parameters can thus be edited throughout the process until the final sales agreement, providing the buyer with confidence and flexibility in the buying process.