해요체 vs 반말: Choosing the Right Politeness Level in Korean

In Korean, the ending of every sentence shows how you relate to the listener. The same idea, "I'm eating," can be said in several ways depending on whether you are talking to a stranger, a boss, or your best friend. These are called speech levels, and choosing the right one is one of the most important social skills in Korean.

The three levels you need

• 합니다체 (formal polite): news, presentations, customer service, the military, and formal announcements.
• 해요체 (informal polite): the everyday default with strangers, coworkers, shop staff, and people you have just met.
• 반말 (casual, literally "half speech"): close friends, younger siblings, and people who have agreed to speak casually.

• 감사합니다.

  [gamsahamnida]

  Thank you. (formal)

• 고마워요.

  [gomawoyo]

  Thank you. (polite)

• 고마워.

  [gomawo]

  Thanks. (casual)

Start with 해요체

If you are unsure, use 해요체. It is polite without being stiff, and it is what most learners should use by default. You will never offend anyone by being polite, but using 반말 too early can sound rude.

• 어디 가요?

  [eodi gayo]

  Where are you going?

• 밥 먹었어요?

  [bap meogeosseoyo]

  Have you eaten?

• 이거 맛있어요.

  [igeo masisseoyo]

  This is delicious.

How 반말 is formed

For most sentences, casual speech is simply 해요체 without the final 요.

• 어디 가?

  [eodi ga]

  Where are you going? (casual)

• 밥 먹었어?

  [bap meogeosseo]

  Did you eat? (casual)

• 이거 맛있어.

  [igeo masisseo]

  This is delicious. (casual)

There are a few special cases. 이에요/예요 ("it is") becomes 이야/야, and polite 네 (yes) and 아니요 (no) become 응 and 아니.

• 이거 내 거야.

  [igeo nae geoya]

  This is mine.

• 응, 알겠어.

  [eung algesseo]

  Yeah, got it.

Pronouns change too: 저 (I, humble) becomes 나, and 제 (my) becomes 내.

When can you switch to 반말?

Korean relationships often begin in polite speech. People switch to 반말 once they are close and usually after one person suggests it. The older or more senior person typically makes the offer.

• 우리 말 편하게 할까요?

  [uri mal pyeonhage halkkayo]

  Shall we speak comfortably (casually)?

• 말 놓으세요.

  [mal noeuseyo]

  Please feel free to speak casually to me.

Age matters a lot. Friends born in the same year usually switch quickly. With someone older, it is normal for them to use 반말 with you while you continue with 해요체 until they say otherwise.

합니다체 in daily life

You will hear 합니다체 in announcements, at banks, and in formal greetings. Learners should know a few set phrases even if they rarely use this level in conversation.

• 처음 뵙겠습니다.

  [cheoeum boepgetseumnida]

  Nice to meet you. (very formal, first meeting)

• 잘 부탁드립니다.

  [jal butakdeurimnida]

  I look forward to working with you.

• 다음 역은 시청역입니다.

  [daeum yeogeun sicheongyeogimnida]

  The next station is City Hall. (subway announcement style)

Common mistakes

• Using 반말 with shop staff or strangers because it appears in dramas. On screen, characters are often close friends or family, so their casual speech is not a model for everyday interactions.
• Mixing levels in one sentence, such as polite verbs with the casual pronoun 나.
• Switching to 반말 without being invited, especially with someone older.

Online and in texts

Online, many young Koreans use 반말 in comments or group chats with friends. With people you do not know, polite 해요체 is still the safe choice, even in messages.

Speech levels may feel complicated, but they reflect a simple idea: showing respect and closeness through language. Start polite, watch how others speak to you, and let your relationships guide the switch.