milan2099/GettyImages; Illustration by Hunter Newton/Bankrate Key takeaways You can add an authorized user to your Chase credit card account by completing an online form. You can remove an authorized user by calling Chase or sending a secure message. Some Chase credit cards allow you to add authorized users for no…

Key takeaways The Citi Double Cash® Card is an excellent flat-rate rewards card that can earn you unlimited 2 percent cash back on all purchases: 1 percent when you make a purchase and 1 percent when you pay it off, with no categories to keep track of. If you have…

Key takeaways Interest rates on credit cards can be adjusted over time or if you are significantly late on payments. Using a credit card comes with certain fraud and purchase protections. Not all credit cards are accepted when traveling abroad. Some issuers may be willing to work…