즐거운 추석 되세요 or 보내세요? The greeting Korea keeps correcting itself on

Chuseok falls on Friday, 25 September 2026. The official holiday runs Thursday the 24th through Saturday the 26th, and the Sunday right after it stretches the break to four days without needing a substitute holiday this time (한국천문연구원, 「2026년 월력요항」). Which means greeting season starts now — the texts to coworkers, the caption under the family photo, the line a brand puts on its Chuseok banner. And somewhere in that pile, the same small argument restarts every year: 되세요, or 보내세요.

즐거운 추석 되세요 or 보내세요: which is standard?

보내세요. The 국립국어원 — the National Institute of Korean Language — has fielded this exact question at least twice, eight months apart, and answered it the same way both times: “생략된 주어가 상대이므로 ‘보내세요’로 표현하는 것이 적절합니다. ‘되다’를 서술어로 쓴다면 주어와 호응이 맞지 않는다는 점 참고해 보시기 바랍니다” — since the omitted subject is the listener, 보내세요 is the appropriate expression; using 되다 as the predicate leaves the subject and predicate not agreeing (국립국어원 온라인가나다, answered 31 January 2025; answered 10 October 2025).

Keep the reasoning, not just the verdict. It transfers to a lot more than one holiday.

Why 되세요 actually breaks

되다 means to turn into something — 표준국어대사전 defines it as 다른 상태나 성질로 바뀌거나 변하다, to change into a different state or quality (표준국어대사전, 되다1). A verb like that needs a subject capable of doing the turning.

Korean greetings drop the subject as a matter of course, the way “have a good one” drops “you.” Put it back into 즐거운 추석 되세요 and you get 당신은 즐거운 추석이 되세요 — “you, become a joyful Chuseok.” A person cannot become a holiday. That sentence is not almost right. It is describing a different event, a transformation nobody intended.

보내세요 survives the same test. In this use, 보내다 means something closer to “spend” or “see through” than “send” — the same verb sitting in 주말 잘 보내세요 and 방학 잘 보내세요, phrases you have probably already produced without thinking about them. Its subject is whoever is doing the spending, and that is exactly who is standing in front of the greeting. Put the subject back — 당신은 즐거운 추석을 보내세요, “you, spend a joyful Chuseok” — and nothing breaks.

One verb asks the listener to become an event. The other asks them to live through it well. Only one of those is a thing a person can do.

It is not just 추석

The same 되세요 pattern shows up wherever Korean wishes someone well over a stretch of time, and the standard’s objection applies every time, for the identical reason. The institute’s own coverage of a viral correction video names 좋은 하루 되세요 alongside the holiday version (국립국어원 온라인가나다, answered 10 October 2025), and a 2023 broadcast piece extends the list further (YTN, 16 January 2023):

You’ll see	The standard prefers	Same test
즐거운 추석 되세요	즐거운 추석 보내세요	can’t become a holiday
좋은 하루 되세요	좋은 하루 보내세요	can’t become a day
행복한 명절 되세요	행복한 명절 보내세요	can’t become a holiday season
즐거운 주말 되세요	즐거운 주말 보내세요	can’t become a weekend

Learn 추석’s version and you have effectively learned all four. That is the actual payoff of a grammar post like this one: one mental model, not a greeting list to memorize.

Everyone says 되세요 anyway

Here is the honest part. 되세요 is not some rare slip — it is close to the default you will hear and read this Chuseok, on store signage, in company mass texts, in captions from people who studied this rule in school. A 2020 op-ed making the same grammatical argument this article does calls the phrasing “widespread across media, corporations, and government institutions” despite being non-standard (오마이뉴스, 1 October 2020), and the institute is still fielding the identical question five years later, twice in one year. Nobody keeps asking the same thing about a rule that has already won.

So the useful skill is not spotting 되세요 as an error every time you meet it — you will meet it constantly, and treating it as a scandal each time is exhausting and wrong-headed. The useful skill is recognizing it, understanding exactly why it is non-standard, and choosing 보내세요 yourself when you are the one writing the greeting. Passive recognition, active production — the gap between them is where a lot of real fluency lives.

Who gets which greeting

The register question is separate from the standard-form question, and Chuseok is a good place to keep both straight at once — the same instinct that decides whether you can say 수고하셨습니다 to your boss applies here.

To	Say	Register
A close friend, casually	추석 잘 보내!	반말
Most people, the safe default	즐거운 추석 보내세요.	polite, standard
A boss, an elder, a formal audience	풍성한 한가위 보내시기 바랍니다.	formal wish

The formal row swaps in -시기 바랍니다, “I hope you [do this],” which raises the listener through the honorific -시- (the marker that politely elevates whoever you’re speaking to) and keeps 보내다 doing the same job it does everywhere else. No version of this ladder reaches for 되다, because the problem with 되세요 was never about politeness level. It was about which verb the sentence needed.

One more correct option

Traditional greetings also reach for a native verb built for exactly this: 쇠다, meaning to observe or pass through an occasion like a holiday, birthday, or anniversary. The 2020 op-ed above offers 한가위 넉넉하게 쇠세요 as another standard-supported alternative, alongside 보내세요 — worth having if you want something that sounds a step more traditional than the everyday version.

What to take from this

• 되세요 fails because 되다 means “turn into,” and the greeting’s hidden subject — the listener — cannot turn into a holiday, a day, or a weekend.
• 보내세요 works because 보내다 here means “spend” or “see through,” and the listener can do that just fine.
• The same fix applies to 좋은 하루 되세요, 행복한 명절 되세요, and 즐거운 주말 되세요 — one rule, four phrases.
• 되세요 is still the version you will hear constantly. Recognize it without alarm; produce 보내세요 yourself.
• Register (보내! / 보내세요 / 보내시기 바랍니다) is a separate choice from the standard-form question, decided by who you are talking to, not by which verb is correct.

추석 will pass in a few weeks and the greeting will go quiet until 설날. The verb agreement underneath it will not — it is the same check worth running on any wish-someone-well sentence you build from here. That is the kind of pattern that is easy to read once and hard to have ready when you are actually typing a text to your manager on the 24th, which is the argument for meeting it inside sentences you will actually send, the way how I improved my Korean listening describes. up103 builds listening and phrasing practice out of the notes you already keep, and Founding Learners get 6 months free, then 50% off for life, at app.up103.com.

— 에드, up103