Sinclair Credit Card Payment and Login
Making your Sinclair credit card payment or looking to login to view your statement or manage your account online? This guide includes information on card management and payments – check below to learn more about your payment options. To make a payment online or manage your account, follow the link provided below on this page to the Sinclair credit card login. You will also find useful bill pay information such as the credit card customer service number, payment mailing address, and billing phone number below.
Sinclair Credit Card Payment
Payments can be made by mail, by phone and online.
Pay Online: With Sinclair Online Credit Services you can check your transactions for any given statement period, update your personal information, and make payments quickly and securely. The online service supports single payments, though it also provides an Autopay service.With this service you can make sure that the balance is repaid fully each billing cycle and as such avoid unpaid finance charges. If you have not already registered for the online services, you can do so by providing your account number, your credit limit, your card expiration date and your social security. To make your Sinclair credit card payment online click the “Pay Online” button below to login, register, view your statement or manage your account online.

Pay by Phone: Customer services are available at 1 (800) 325-3265. Call this number for account information or to make a payment.
Pay by Mail: The Sinclair credit card payment mailing address is: Sinclair Oil Corporation, PO Box 31826, Salt Lake City, Utah 84131-0826. Please include your Sinclair account number on your check. Your account number is located on your statement. To ensure your Sinclair payment is received on time it is recommended that you mail your payment at least 5 business days prior to the due date shown on your monthly billing statement.
Pay in Store: No. At this time you cannot pay your Sinclair credit card in stores.
Sinclair Credit Card Customer Service: The Sinclair credit card customer service number is 1-800-325-3265.
Sinclair Credit Card
Founded by Henry Sinclair in 1916, Sinclair has grown to become one of the largest oil companies in the United States. The company runs a number of oil fields and refineries, and has a brand presence at gas stations, truck stops and gas marts across the country. The company offers a number of payment and advantage card programs, including the Sinclair Credit Card.
How does this credit card shape up? On the whole this is a quite a confusing credit card. First of all, there is no clear distinction between the Sinclair Charge Card and the Sinclair Credit Card – they appear to be one and the same, despite the fact that charge cards and credit cards are two different things. To add to the confusion, it is clearly stated that this card is not a revolving line of credit and that you must accordingly pay off the balance you accrue in full at the end of each balance cycle. However, interest rates do come into play if you fail to completely pay off your balance when you are supposed to. So if you have an outstanding balance at the end of a billing period, it appears that you will be fined unpaid finance charges, as well as a charge based on a periodic rate.
Charge cards with the major credit card companies do not come with interest rates — they simply charge a flat fee if you fail to pay off the balance in full at the end of each billing cycle. But with clearly advertised annual rates, it is obvious that this card is not just a charge card, and does allow you to take a balance forward as long as you pay the unpaid finance charges. Overall the Sinclair Credit Card appears to be a mix between a charge card and a credit card, though the one clear thing is that it is supposed to be used as a charge card. Returned payment fees are $20.