Be warned......Many restaurants in South Beach have decided to add 18% service tip in the bills when the bill is asked for.....make sure you check twice before signing your credit card receipt's..and be careful not to over tip...what they do is run your credit card once with the tip included then show you the receipt with a line that says tip amount and left empty.......one then tips again, and that's where we as locals feel that it is scam !!!! When asked about this practice many say that various tourist from other countries aren't use to tipping and don't know that in the US that many waiters make there living off there tips !!!! STILL BE WARNED AND CHECK TWICE....and if it still doesn't seem right ask for a manager, especially if you get bad service !!!!!!!
In most places in the United States, you would usually add a tip to your dinner or drink bill. Here in Miami, they do it for you. Usually, between 18% and 20%. It's up to you if you want to add any additional tip. You, also, have an opportunity to even lower the tip they have already added to the bill but who does that? I even ordered just a drink at a bar. And, 18% tip was already added. A little disturbing because generally most people tip about 15% for a fair service. 18%-20% would be for excellent service or having taken care of a large group of people.
Notice that a 15% tip is already included in all the restaurant cheques. This is because of the high number of foreign tourists who aren't accustomed to tipping at a restaurant. So, if your service was great, feel free to leave the extra 5%. If it was all right, you're all paid up, but if you hated the service, you are, of course free to remove the tip and pay only what you owe for the food.
Gratuities (tips) are already included on your bills in Miami Beach and often more than what you'd normally give your waiter or waitress.
So, unless you feel you got really greeeaat service, dont give gratuities.