As a restaurant consultant, one of my most important bits of advice is if you open a restaurant, no matter how big or small, accept credit cards. Since most, myself included are in the habit of not carrying cash, it was really inconvenient that we had to rummage through our purses to find enough cash to pay the bill and tip. People will buy more when you accept credit cards!
Restaurant merchant account is one of the first accounts you will need to set up as a new restaurant owner. No application fees and no setup fees is a true incentive for any eatery owner. Accepting credit cards is a true convenience that any customer looks for.