No, checking your credit score or credit report through American Express’® MyCredit Guide will not impact or lower your credit score. Only "hard inquiries" of your credit report will have any potential impact against your credit score. Hard inquiries are most often made when you apply for a loan or line of credit, when a creditor or lender wants to review your credit score, credit report, or credit history. Pulling a free credit report or viewing your credit score with MyCredit Guide is a simple way for you to keep an eye on your credit history without triggering a hard inquiry, helping you monitor and correct any issues that might affect your credit report or credit score.