Vietnam

Tipping is not a part of the Vietnamese culture. A service fee will usually be charged in upscale restaurants as well as Western-style hotels.

Feel free to tip your tour guide and hospitality staff if the service was extraordinary.

Autralia

There is usually a service charge tacked on your bill, and any extra tipping is entirely voluntary. The average wage for servers in Australia is $15.38 per hour, and waiters get benefits as part of their jobs.

Tipping can be a bit confusing in China, but normally no one tips.

It's usually prohibited — it's illegal to tip taxi drivers, for example — and is considered impolite. But, because of the booming tourism industry, more tour guides are relying on tips for their income. Feel free to tip your tour guide, or anyone who really went above and beyond to help you — just be prepared for them to refuse.

Belgium

According to TripAdvisor, tipping in Belgium is not common.

Most service sectors include their service charge with the bill — at restaurants, salons, and taxis.

Estonia

Service charges and tips are not allowed to be included on the bill in Estonia. Regardless, you don't have to leave a tip if you don't want to.

Finland

Service is always included in bills, so no tipping is required or expected in Finland.

France

In France, there will always be a service charge on your bill. Restaurants are required to include it in their prices, so you're not obligated to leave a tip at all.

Iceland

Service fees are attached to almost everything in Iceland, including restaurants, cafes, and taxis, so you are not expected to leave any extra tip.

Italy

A 1- to 3-euro charge is usually added to the bills for service in Italy, so you don't have to leave any extra. It is also appreciated if you round your bill up to the next dollar as a matter of convenience.

Japan

In Japan, some natives might take an offense to your tip and will refuse even if you give it. It is also advised to refrain from using the word "tip" (chippu) in Japan. Don't tip in most circumstances, but if you want to, put it in an envelope or wrap it in paper.

Malaysia

It is not customary to tip in restaurants in Malaysia.

A 10% service charge will already be added to your bill and is meant to cover tipping and other fees. In clubs, bars, and lounges, however, most people give the waiter or waitress a dollar or two. If you want things to go to your liking or to speed up a service, tipping might help you — do it at your own discretion.

Tipping is not customary in New Zealand.

Most locals do not tip because the wait staff gets paid well. But according to TripAdvisor, most hospitality and service staff in New Zealand are part-time students who don't get paid well. So they might appreciate the tip.

Tip if you feel that the service was extraordinary at restaurants, and leave a tip in an envelope with a manager for hospitality services, if you'd like.

Singapore

Tipping in Singapore is not common and would not make a difference to the staff, since the restaurant usually keeps what's left on the table.

There is usually a 10% service fee tacked on to your bill, but that doesn't go to the staff, either.

Don't tip unless you can hand it to the person who serviced you directly.

Slovenia

It is not an obligation to tip in Slovenia, but it will be appreciated.

South Korea

Tipping is not expected nor required in South Korea.

There is usually a service charge on your bill already, but it will be appreciated if you tell a taxi driver to keep the change.

Sweden

Tipping is not mandatory, and there is usually a 10% charge already tacked on to your bill in Sweden.

Switzerland

You don't need to tip in Switzerland because the service staff gets paid fairly well. There is usually also a service charge on your bill, so you don't need to leave extra.