Because it's considered a premium rewards card, the American Express Business Gold Card can be a little harder to get approved for than other popular cards. Amex will look at your credit score, income, and other factors when it considers your application. You'll also need to have a for-profit venture to be eligible for a small-business card — but it doesn't have to be a huge corporation or have a formal business structure. Freelance work and side gigs like driving for Uber can all qualify you for a small-business card. Also, be aware you won't be eligible for the welcome offer if you already have, or have had, the American Express Business Gold Card because of Amex's once-per-lifetime rule. However, if you have/had another version of the Gold, such as the American Express Gold Card, you're still eligible for the bonus.