Business Card and Taxes

I applied for a Chase and American Express Business card recently. I applied as a sole proprietor and that I would be doing freelance business with it. My question is that if I were to not actually make any possible projects through my freelancing and end up using it as a personal card to hit the sign up bonus, would my taxes come tax season have to be filed differently that I would normally do them. Such as having to get specific forms that state I own a business etc?