The bulk of business credit and loan approval can hinge on your D&B PAYDEX score, as its credit rating system focuses on the payment experience. The higher your score in this credit reporting agency, the more likely you are to pay your invoice. Should you pay early, rather than just on time, your PAYDEX score can increase from 80 to 100. Lenders and underwriters who see your high score are more likely to approve you for supplier credit.