No, your credit won't be affected when you create an Affirm account or check your eligibility (including checking your prequalification eligibility). When you apply for or check to see if you prequalify for Affirm financing, it's considered a soft inquiry, which does not affect your credit score. If you decide to pay with installments through Affirm, your payment plan and repayment activity may be reported to credit bureaus. You can find more information on Affirm's Help Center Helpcenter.Affirm.com