A credit score, a.k.a.: a FICO score. FICO scores range from 300 to 850, and it is an indication of your history with managing your credit. The higher the number, the more negotiation power you’ll possess and the better rate you’ll get. Factors that affect your credit score include payment history, amounts owed, length of credit history, recent lines of credit opened , and types of credit used. The average credit score for homebuyers is 717.