Nobody expects a tip
팁을 주지 않는다
Tipping is not a custom here, and service staff do not expect it. That goes for restaurants, taxis, salons, a body scrub or a massage. The price on the menu or the price the shop quoted you is the price.
What happens if you try
Sometimes it is accepted, sometimes politely refused. Some people may try to hand back money you left on the table because they assume you forgot it. Nobody is waiting for it, so there is no need to work out an amount.
The exception you will see on a bill
Many major hotels and upscale restaurants add a service charge to the bill. When that happens it is on the bill and it is not a tip on top. If you see a service charge line, that is the whole story, and there is nothing further to add.
Why this matters more than it sounds
Travellers from tipping countries often budget an extra share of the bill for tips, and then feel they have underpaid for a two hour service. You have not. The quoted price is the whole price here.
What is appreciated instead
Saying thank you on the way out. Coming back. Being on time for a booking, and cancelling ahead if your plans change. If you leave a review, spell the shop's name correctly so it helps the next person find it.
Taxis
Taxi drivers do not expect a tip either. Letting the driver keep small change is fine if you want to, and is not expected.
If you are unsure in a particular moment, the safe default is simply to pay the amount asked and say thank you.
On the map
Sources
- Official Seoul travel guide, etiquette page (tipping is not customary in Korea; some people may accept it while some may refuse)
- Official Seoul travel guide, money page (tipping is not a Korean custom and is not expected by service personnel; many major hotels and upscale restaurants add a service charge to the bill; taxi drivers do not expect tips)