Who is eligible for the American Express Business Platinum Card?

The Business Platinum Card® from American Express currently features the highest welcome bonus it's ever offered publicly: Find out your offer and see if you're eligible for as high as 300,000 bonus points after spending $20,000 on purchases in the first three months of card membership. (Welcome offers vary, and you may not be eligible for an offer.)Those 300,000 Amex points are worth $6,000, per TPG's September 2026 valuations, which offer a compelling reason to consider applying.That's pretty compelling, but before you start filling out your application, you might wonder if you're even eligible to take advantage of this offer. This is, after all, a small-business card, so there are different requirements than when you apply for a personal card.On the other hand, you might qualify for the Amex Business Platinum Card and this fantastic welcome offer without even realizing it.Here are some ways to determine whether you're eligible to apply for the Amex Business Platinum card and whether it makes sense to do so.Related: Amex Business Platinum Card review: Can its premium perks justify an $895 annual fee?Who is eligible for the Amex Business Platinum?You might be eligible for the Amex...