A credit score is a complex mathematical model that evaluates many types of information in a credit file. A credit score is used by a lender to help determine whether a person qualifies for a particular credit card, loan, or service. Most credit scores estimate the risk a company incurs by lending a person money or providing them with a service –– specifically, the likelihood that the person will make payments on time in the next two to three years. Generally, the higher the score, the less risk the person represents.