What do you need to apply for an Ace gold card from Ace Cash express?

You don't need anything. You get it when you cash a check there for the first time. And when cashing a check for the first time they will ask for your social security number , but if you don't have one , don't worry, give them the one your work with. The gold card is so that every time you go, they can find you on the computer, but even if you don't have it , they can still find your file as long as you have cashed a check at that exact location in the past.