In the United States, a credit score is a number based on a statistical analysis of a person's credit files, that in theory represents the creditworthiness of that person, which is the likelihood that people will pay their bills. A credit score is primarily based on credit report information, typically from one of the three major credit bureaus: Experian, TransUnion, and Equifax. Income and employment history (or lack thereof) are not considered by the major credit bureaus when calculating credit scores.