You may be asked for your billing ZIP code when making online purchases or providing credit card information over the phone. But what exactly is a billing ZIP code, and why is it important?

Here's how you do it. 1. Register your Mastercard, Visa, or Amex gift card with the issuing bank If your card doesn’t already have your name and zip code associated with it, you’ll need to do ...

Candice Reeves is a financial writer based out of Nova Scotia. She specializes in personal finance, investing, and cryptocurrency. Her work is featured in leading publications across various ...

a postal code is required as a security measure. If using a credit card in the U.S., you may need to use a ZIP code instead. Many or all of the products featured here are from our partners who ...