According to the official website, the mailing address for Capital One payments is Card Services, P.O. Box 60501, City of Industry, California 91716-0501. Card Services Inc., Attention: Exception Department, 2012 Corporate Lane, Suite 108, Naperville, Illinois 60563 is the overnight address.
The Capital One website advises consumers to check their credit card statements for the correct mailing address. They may also choose the one-time payment option, which permits payment to be credited on the same day if made before 8 p.m. Eastern Time. AutoPay, which takes a one-time setup and automatically schedules payments a day before the due date, is another payment option. The one-time payment and AutoPay options are both free of additional fees.