Some sort of financial benefit. Usually a percentage of each transaction and/or flat fee per cardholder or signup and/or a percentage of fees and interest paid

Some sort of financial benefit. Usually a percentage of each transaction and/or flat fee per cardholder or signup and/or a percentage of fees and interest paid. The exact details on these agreements are rarely published. See here: https://www.doctorofcredit.com/everything-you-ever-wanted-to-know-about-credit-card-partners-how-much-they-make-more/ https://www.doctorofcredit.com/everything-you-ever-wanted-to...