How to Say Congratulations in Korean (and When to Bring an Envelope)

Congratulations in Korean is 축하해요 (chukahaeyo) for everyday use — coworkers, acquaintances, casual politeness. Drop the -요 to 축하해 among close friends, or use 축하합니다 for formal speeches and announcements. For weddings, graduations, and other big occasions, Koreans also hand over 축의금 — a cash-filled envelope, because saying it out loud is only half the tradition.

In English, "congratulations" is one word that stretches to cover everything from a promotion to a new baby. Korean makes you pick a politeness level first, and then — for anything that actually costs money to celebrate — it expects you to also pay up. Not metaphorically. Literally, in an envelope.

Here's the full ladder, the set phrases for each life event, and why showing up to a Korean wedding empty-handed is a bigger problem than showing up in the wrong outfit.

The 축하 ladder: casual, polite, formal

Notice there's no plain 축하 by itself in real speech — Korean verbs need a conjugated ending, and 축하 alone sounds like a headline, not something a person says to another person. If you want to write "congratulations" across a banner instead of saying it, that's a different word entirely: 경축 (gyeongchuk). You'll see 경축 개업 ("celebrating the opening") stretched across a new store's ribbon, or 경축 졸업 taped above a school gate. It's formal, printed, and never spoken aloud — think of it as the Korean equivalent of "CONGRATULATIONS!" in balloon letters.

The occasion phrases: what Koreans actually say

Korean congratulations are rarely bare. You almost always name the occasion first, then attach 축하해(요). That noun-plus-축하 pattern is the actual skill here — memorize the nouns and you can build the phrase for anything.

Swap the noun and you're set — 합격 축하해요 ("congrats on passing [an exam/interview]") is one of the most common ones you'll actually hear, since Korea runs on entrance exams and job interviews. Birthdays get their own dedicated phrase, 생일 축하해요, which is common enough that most Koreans learn the birthday song version before any of the phrases here.

축의금: the envelope you're expected to bring

For weddings, and to a lesser extent graduations and store openings, the spoken phrase is the small half of the gesture. The real tradition is 축의금 (chuguigeum) — congratulatory money, handed over in a plain white envelope at the entrance table before you even find your seat.

• Write your name on the envelope — usually your full name, sometimes with your relationship to the couple noted on the back.
• Odd numbers, in general — 3만원, 5만원, or 7만원 for an acquaintance's wedding is standard; even amounts historically read as funeral-money territory, though this softens once you're past 100,000 won and counting in round tens.
• Avoid the number 4 — 사 (sa, "four") sounds like 死 (sa, "death"). Nobody puts 40,000 won in a wedding envelope.
• Close friends and family give more — 100,000 won and up is normal for someone you're actually close to; coworkers and acquaintances usually land at 50,000.

Fandom congratulations: 1위 축하해

K-pop fandoms run on 축하해 during comeback season. A group's first music-show win gets flooded with 1위 축하해 ("congrats on #1"), and a trainee's debut gets 데뷔 축하해 the moment the show starts airing. Because fans are usually addressing idols close to their own age in a fan-community tone, casual 축하해 is standard even from strangers online — it reads as warmth, not disrespect, the same way 화이팅 does.

One phrase that isn't a substitute

A mistake English speakers make: using 축하해요 as a general "good for you" the way English uses "congrats" loosely — for someone getting a good grade on a quiz, or finishing a workout. Koreans reserve 축하 for events that are genuinely milestone-sized: passing an exam, not acing a pop quiz. For smaller wins, 잘했어요 ("you did well") or 대박 ("amazing," covered in our daebak guide) fits better than 축하해요, which can sound oddly formal for something minor.