What exactly is a billing ZIP code, and why do credit cards need it? Billing ZIP codes are a crucial aspect of credit card security, helping to prevent fraud and ensure authorized transactions.

If you do not know your zip code you can find it in the following ways. You can check your most recent credit card bill as it will have your address on it which contains your zip code.

Why are zip codes and postal codes important when it comes to credit card transactions and when do they overlap for Canadian credit card users?

But you don't have to tell merchants your ZIP code, at least not in California. Last week, the state's Supreme Court ruled that it is illegal for retailers to demand ZIPs during a credit card ...

Old gas pump in Utah, before the days of automated payment at the pump (photo by Adam Tanner). Recently I wrote an article about why so many stores ask for your ZIP code at check-out. With your ...