Open almost any Japanese business email to a client or partner and the first line will be いつもお世話になっております. Answer a business call and you will say お世話になっております before anything else. It is as fixed as the phone itself. Literally it means "I am (always) being taken care of [by you]" — an advance acknowledgement of everything the other party does for your relationship. The English-speaker's instinct is to read that literally, decide it isn't strictly true (especially at a first contact), and skip it. That instinct is exactly wrong. This is not a claim to be verified; it is a slot — the relational groundwork that English business writing spreads across "Dear Ms. Tanaka" and "I hope this email finds you well." Omit it and you mark yourself, instantly, as an outsider to business Japanese.
What the phrase is doing
Break it down: お世話 (おせわ, "care, looking-after, assistance"), になる ("to become / come to be in [a state]"), and -ております, the humble-polite continuous (おる is the humble form of いる). So the whole thing is "I am in the ongoing state of receiving your care." The humble おります (from おる) — not the neutral なっています (from いる) — is what makes it business-grade; it lowers you relative to the person you are addressing.
いつもお世話になっております。さくら商事の田中でございます。
itsumo o-sewa ni natte orimasu. sakura shōji no tanaka de gozaimasu
Thank you as always for your continued support. This is Tanaka from Sakura Trading. (email or call opener)
お世話になっております。先日はお時間をいただき、ありがとうございました。
o-sewa ni natte orimasu. senjitsu wa o-jikan o itadaki, arigatō gozaimashita
Hello (business opener). Thank you for your time the other day.
The いつも ("always") intensifies it into the canonical email opener. On the phone the bare お世話になっております is enough. Either way, it is the handshake before the business begins.
The tense/aspect variants — one relationship, three moments
The single stem お世話 flexes to mark where you stand in the relationship's arc: ongoing, just-beginning, or ending. Getting the right one is the real skill.
| Form | Nuance | When it fires |
|---|---|---|
| お世話になっております | ongoing (humble) | standard opener to an existing client/partner |
| いつもお世話になっております | ongoing, emphatic | the canonical email opening line |
| お世話になっています | ongoing, softer/plainer | less formal contexts; a notch below おります |
| お世話になります | future / first-time | a first contact, or "we'll be in your care" before a new dealing |
| お世話になりました | past — the relationship is closing | thanking someone as you leave a job, end a project, check out |
| お世話をおかけします | humble, "I'm causing you trouble" | flagging that you are about to impose on someone |
The past form is the one learners most often miss, because the moment it fires — a relationship ending — is emotionally the opposite of an opener:
在職中は大変お世話になりました。
zaishokuchū wa taihen o-sewa ni narimashita
Thank you for everything during my time here. (leaving a job, addressing colleagues)
三年間、本当にお世話になりました。
san'nenkan, hontō ni o-sewa ni narimashita
Thank you sincerely for these three years. (to a mentor, host family, or departing team)
The future/first-time form handles the genuine cold contact, where "always being taken care of" would be a stretch too far even for a fixed phrase:
本日はお世話になります。どうぞよろしくお願いいたします。
honjitsu wa o-sewa ni narimasu. dōzo yoroshiku o-negai itashimasu
Thank you for having us today. We look forward to working with you. (arriving for a first meeting)
And the humble おかけします variant explicitly names the burden you are placing on someone:
いろいろとお世話をおかけしますが、よろしくお願いいたします。
iroiro to o-sewa o o-kake shimasu ga, yoroshiku o-negai itashimasu
I'll be putting you to some trouble, but I appreciate your help. (starting a new arrangement)
The reply, and a natural spoken use
When someone opens with お世話になっております, you mirror it — often with こちらこそ ("likewise / the pleasure is ours"):
お世話になっております。こちらこそ、いつもありがとうございます。
o-sewa ni natte orimasu. kochira koso, itsumo arigatō gozaimasu
Thank you for your continued support. Likewise — we're always grateful. (returning the opener)
The phrase also lives outside strict business, wherever someone has looked after you — a host family, a hospital, a teacher, in-laws. There the past お世話になりました is the warm, sincere "thank you for taking care of me":
この度は息子が大変お世話になりました。
kono tabi wa musuko ga taihen o-sewa ni narimashita
Thank you so much for looking after my son. (a parent thanking a teacher or host)
For the wider family of fixed business formulae this belongs to, see Fixed Business Set Phrases; for its partner at the end of the message, see よろしくお願いします.
Common mistakes
Mistake 1 — Diving straight into the content. English email can open with the subject ("Quick question about the invoice…"). Japanese business email cannot: skipping お世話になっております and launching into your point reads as abrupt, almost rude.
❌ 請求書の件ですが、金額が間違っています。
Too abrupt as an opening line — jumping straight to 'about the invoice, the amount is wrong' skips the required opener. Lead with お世話になっております first.
✅ いつもお世話になっております。請求書の件でご連絡いたしました。
itsumo o-sewa ni natte orimasu. seikyūsho no ken de go-renraku itashimashita
Thank you as always. I'm writing regarding the invoice.
Mistake 2 — Parsing it literally and hedging at a first contact. Reading the phrase as a factual claim, learners try to be "honest" and qualify it ("you haven't actually taken care of me yet, but…"). That misreads a fixed slot as a statement. If the newness bothers you, the fitted form is simply the future お世話になります.
❌ まだ特にお世話にはなっていませんが、ご連絡いたしました。
Over-literal — 'I haven't really been taken care of yet, but…' treats a fixed opener as a factual claim. For a first contact, just use the future form お世話になります.
✅ 初めてご連絡いたします。お世話になります。
hajimete go-renraku itashimasu. o-sewa ni narimasu
I'm contacting you for the first time. I look forward to working with you.
Mistake 3 — Using the plain です/ます form to a client. お世話になっています is not wrong, but toward an external client it is a notch too plain; business register wants the humble おります.
❌ お世話になっています。
A touch too plain for a client — the neutral なっています lacks the humble register. Business standard is the humble おります: お世話になっております.
✅ お世話になっております。
o-sewa ni natte orimasu
Thank you for your continued support. (business-standard humble opener)
Mistake 4 — Saying it to your own colleagues. お世話になっております is aimed at the outside (そと) — clients, partners, suppliers. Toward coworkers inside your own company (うち), the greeting is お疲れ様です, not this.
❌ お世話になっております。
Misdirected if said to a coworker in your own company — this opener is for outside parties. Between colleagues, the greeting is お疲れ様です.
✅ お疲れ様です。
o-tsukaresama desu
Hi. (the in-company greeting between colleagues)
Key takeaways
- お世話になっております opens virtually every business email and call to an outside party — a fixed relational slot, not a factual claim.
- いつもお世話になっております is the canonical email opener; the bare form suffices on the phone.
- The stem flexes by relationship-stage: なります (first-time/future), なっております (ongoing), なりました (ending — thanking someone as you part).
- Use the humble おります, not plain なっています, toward clients; and aim it at the outside world — for colleagues, use お疲れ様です.
- Omitting it and diving into your point is the tell of an outsider; it does the work English spreads across "Dear X" and "I hope this finds you well."
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- Fixed Business Set PhrasesN2 — The closed inventory of business keigo formulae — お世話になっております, よろしくお願いいたします, お疲れ様です, 恐れ入りますが — deployed by situation-slot, not by literal meaning.