Visa and Mastercard dominate the market as they are widely accepted worldwide. American Express and Discover are the next big players, but have a lower acceptance rate given their higher processing fees. Cardfellow provides a great breakdown of the various fees by credit card company. Be aware, however, that this can make you a bigger target for tax audits.
Note: If your card information changes (including if it is reissued with a new account number), you may need to update your PayPal wallet and re-enroll your card to continue using rewards.
You can choose any of the payment methods in your PayPal account as your preferred payment method in the Payments section of your account settings. For payments made through Click To Pay, we request you to make the payment at least 3 days prior to the due date to avoid late payment charges.