Mastercard can be used in over 210 countries, and you can use them for in-person shopping, as well as for online shopping and paying bills. It is among the most well-known and the most widely accepted card networks, and you can use your card in most stores at home and abroad. Essentially, any store or merchant that accepts credit card payments will accept your Mastercard, too. You’ll rarely come across a merchant who accepts cards but doesn’t accept Master Card. So, whether you plan on using your card at home or abroad, you will, in most cases, be able to make transactions and purchases with your MC safely and easily.