감사합니다 (gamsahamnida) is the safe, polite way to say thank you in Korean, and it works with strangers, elders, staff, anyone you don't know well. Among close friends it drops to 고마워 (gomawo), and 고마워요 (gomawoyo) sits in between as a softer, still polite option. Which one you reach for depends on who's listening, not on how grateful you feel.
Korean politeness runs on relationships, not emotion, and thank you is a good place to learn the pattern before it shows up everywhere else in the language.
The three levels
| Korean | Reading | Use it with |
|---|---|---|
| 고마워 | gomawo | Close friends, people younger than you |
| 고마워요 | gomawoyo | Acquaintances, casual but polite |
| 감사합니다 | gamsahamnida | Strangers, elders, staff, anyone senior |
Default to gamsahamnida whenever you're unsure. Overshooting into politeness rarely offends anyone in Korea. Undershooting it can.
Gamsahamnida vs gomapseumnida
You'll also hear 고맙습니다 (gomapseumnida). It's grammatically just as correct and just as polite as gamsahamnida, built from a native Korean root instead of a Sino-Korean one. In practice gamsahamnida is more common in shops, on transit announcements and in customer service, so it's the one worth defaulting to. Gomapseumnida shows up more between people who already know each other but want to keep things formal, a boss thanking a junior colleague, say.
Neither is wrong. Pick gamsahamnida if you only learn one.
When someone thanks you back
Korean has a real reply, not just a nod:
- 아니에요 (anieyo): "it's nothing," the common, slightly humble response.
- 천만에요 (cheonmaneyo): the textbook "you're welcome," a bit more formal and less used in daily speech than anieyo.
Shopkeepers and coworkers will usually just wave a hand and say anieyo. That's normal, not brusque.
Situational thank-yous
A few set phrases cover specific moments and don't translate word for word:
- 잘 먹겠습니다 (jal meokgesseumnida): said before eating, "I will eat well." It doubles as thanks to whoever is paying or cooking.
- 잘 먹었습니다 (jal meogeosseumnida): the same phrase in past tense, said after the meal.
- 수고하셨습니다 (sugohasyeosseumnida): "thank you for your hard work," said to a colleague finishing a shift or a task. Directed at someone senior, this can sound slightly off, so save it for peers and juniors.
- 덕분에요 (deokbune-yo): "thanks to you," used when someone's help genuinely made a difference, not just for routine politeness.
A small bow does real work
A slight nod of the head usually rides along with gamsahamnida, deeper for more respect. Skip it with gomawo among friends, it reads as oddly formal there.
Read it before you can say it
Hangul is phonetic and fast to learn, so recognizing 감사합니다 on a receipt or a sign happens well before most learners can produce it in conversation. Point a camera translator at Korean text and it shows the English meaning alongside the romanization, so every menu and storefront doubles as practice. For the greeting that usually comes right before it, see how to say hello in Korean. And if you're piecing together a whole trip's worth of phrases plus a way to read everything else, how to translate Korean to English covers the rest. Ordering food is where thanks comes up constantly, see Korean menu translator for reading the menu itself.