How to Write a Business Email to a Japanese Company (With Real Examples)
A Japanese business email is not just a message — it is a structured ritual. Get the structure right and your email signals that you understand how professional Japan works. Get it wrong and your content may be excellent but the impression is already off before anyone reads it.
Japanese business emails follow a format so consistent that most Japanese professionals could write the opening and closing lines in their sleep. There are set phrases for openings, set phrases for closings, and a clear expectation of what goes where. The good news: once you know the formula, it’s entirely learnable — and using it correctly makes an immediate, significant impression.
This guide covers both writing in Japanese (for those with some language ability) and the underlying principles that apply even when writing in English to Japanese counterparts. Because the structure and tone matter regardless of language.
📧 The Standard Japanese Business Email Structure
The Opening — Never Skip This
Japanese business emails always open with a greeting before any content. This is non-negotiable. The most standard opening phrase is 「お世話になっております (Osewa ni natte orimasu)」 — roughly “Thank you for your continued support.” It sounds odd in direct translation but functions as a professional greeting that acknowledges the ongoing relationship.
For a first contact, where no relationship yet exists, use 「初めてご連絡いたします (Hajimete go-renraku itashimasu)」 — “I am contacting you for the first time.” Always follow this with who you are before moving to your request.
Jumping straight into your request without an opening greeting is one of the most jarring things you can do in a Japanese business email. Even a short osewa ni natte orimasu before your content signals that you know how this world works.
The Subject Line — Clear, Specific, No Creativity
Japanese business email subject lines are functional, not engaging. The goal is immediate clarity — the recipient should know exactly what the email is about before opening it. Vague subject lines like “Following up” or “Quick question” are not standard in Japanese business email culture. Specific is better: the project name, the meeting date, the request type.
Common subject line formats include the date + topic, or the action required: 「〇〇の件につきまして (〇〇 no ken ni tsukimashite)」 — “Regarding the matter of 〇〇.” This phrasing is so common it’s almost a reflex. It tells the recipient exactly which topic the email belongs to without ambiguity.
Using square brackets like【ご確認】or【ご依頼】at the start of subject lines is very common in Japanese business email — it signals the action required at a glance. Even when writing in English to Japanese counterparts, this habit of precise, action-oriented subject lines is worth adopting.
The Body — Short, Clear, Considerate
Japanese business emails favour conciseness in the body. Long paragraphs are unusual — content is typically broken into short blocks with clear purpose. If you are making a request, state it clearly. If there are multiple points, number them. The reader should never have to search for what is being asked of them.
Politeness is layered into the verb forms rather than added through extra words. Phrases like 「ご確認いただけますでしょうか (go-kakunin itadakemasu deshou ka)」 — “Would you be so kind as to check this?” — do the work of being both clear and appropriately deferential. The request is direct; the grammar is polite. This combination is the target.
Avoid overly casual or direct language even when you know the recipient well. Japanese business email maintains a level of formality that would feel stiff in many Western contexts — but in Japan, this formality is a sign of respect, not distance.
The Closing — Always End with Yoroshiku
Japanese business emails always close with a set phrase before the signature. The most universal closing is 「何卒よろしくお願いいたします (Nanitozo yoroshiku onegai itashimasu)」 — a formal version of “I look forward to your continued support / please take care of this.” It is the email equivalent of bowing at the end of a meeting: expected, always present, and noticed when absent.
A softer version — 「よろしくお願いいたします (Yoroshiku onegai itashimasu)」 — works in most professional contexts. The longer nanitozo version adds extra weight and is appropriate for important requests or first contacts.
Even when writing in English to a Japanese business contact, ending your email with “I look forward to your continued support” or “Thank you in advance for your kind assistance” echoes the closing convention of Japanese email — and it lands noticeably well.
Writing in English to Japanese Recipients — What Still Applies
If you’re writing in English to a Japanese company, the Japanese email structure doesn’t translate word for word — but the principles do. Lead with a warm acknowledgment before your request. Be specific in your subject line. State your request clearly and don’t bury it in a long paragraph. Close with a genuine expression of appreciation rather than just “Best.”
Most importantly: don’t rush. Japanese professional communication values deliberateness. An email that feels considered — where you’ve clearly thought about how to present the request respectfully — will be received entirely differently from one that reads as hasty or transactional. The content might be identical. The impression is not.
One phrase that works remarkably well in English emails to Japanese recipients: “Please let me know if there is any additional information I can provide.” It signals that you are not just making a demand — you are positioning yourself as a collaborative partner. That framing resonates deeply in Japanese business culture.
Japanese business email is not difficult once you see the pattern — it is simply more structured than most Western email conventions. The structure is not bureaucratic padding; it is a courtesy framework that makes every email feel considered and respectful, regardless of the content.
Master the opening, get the subject line right, close with yoroshiku, and sign properly. Do that consistently and your emails will feel natural and professional to any Japanese recipient — in Japanese or in English.
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