Heads up, Amex users! It looks like the days of easily adding authorized users to your American Express cards without a Social Security Number (SSN) are officially over. Word on the street is that Amex is now requiring an SSN at the time of application. In the past, this wasn't always the case, and some folks (especially those into maximizing Amex Offers) added tons of authorized users to their accounts. Why does this matter to you? Well, if you were planning on racking up extra rewards or taking advantage of Amex Offers by adding family or friends without their SSN, those plans are likely dashed. This also impacts those without SSNs, though Individual Taxpayer Identification Numbers (ITINs) are still accepted. It's just another sign that banks are tightening up their rules, so it's always good to stay informed!