Do you need to pay tips in Rome?

You do not need to tip anywhere in Italy. It is not expected and Italians do not tip unless there has been exceptional service. This is something American tourists find difficult to understand but, in Italy, the hospitality staff, waiters, and taxi drivers get paid a living wage. They do not rely in tips to make ends meet.

There is no norm in EUrope. Each country has it's own peculiarities.

Note that you need to request the bill if you want to pay. It would be considered rude if a waiter/waitress would provide the bill on her/his own like in the U.S. General tipping is not common since a service fee of 10% is in general already included in the bill. You can leave an about additional 5% on the table (not in small coins, please) for an extraordinary service.

For a taxi it is common to agree upon a flat rate prior to start and not to tip additionally; alternately you can tip 5-10% by rounding up the taxometer fare, like from €18.40 to €20 or from €10.60 to €12.00

its depend of you. Its not necessary but because they are very helpful if you want you can leave some tips (2-3 euro)

No tips in italy! there is the "coperto" on the menu that you should pay and stop.
obviously if you want you could leave tips but isn't necessarly.
i'm italian and i've never leave a tip.

It depends on you. If you like to give tips, then you may. But if you don't, that would be ok as well. Giving tips to restaurants in Rome is not that necessary. Some of the restaurants adds instant tip in the bill. But if for instant you are more than satisfied with the service, then giving some euros as a sign of gratitude is ok. For taxis, you also do not need to give a tip. Just a hint, if you want to ride on a taxi, be sure you get the legal one. How to know if the taxi is authorized? Please see romesightseeing.net/taxis-in-rome/.

There are several schools of thought regarding tipping in Rome, but only one of these reflects the local culture. The truth is, you do not have to tip in Rome (or Italy for that matter). Don’t believe me? Let’s have my illustrious colleague Sara Rosso weigh in on this. In her post 10 Tourist Mistakes when Visiting Italy, she writes, “…you don’t need to tip in Italy. Really. Let me repeat that: you don’t need to tip in Italy.”

Still not convinced? Well, that is probably because not tipping feels wrong (that is, if you are American). I would venture to say that virtually every American reading this post has depended on 15-20% tips at some point in their lives to cover car payments, rent, personal expenses, and medical bills. Living off gratuity is a fact of life in the US. In Italy, it is not. Now to be fair, servers aren’t rolling in dough. They are paid relatively low wages (like many workers in Italy). The odds are, they don’t even get to keep most of the tips that are left for them.

I tip everywhere I go as though I were in America. All the places one usually tips. I've never had a single person complain. Frankly, if someone grew up in another country where it's not done, that's one thing. To be American and need to ask this question is quite another. Generally tipping gets you far more value in goodwill than the pittance that it actually costs.