
In Japan, email is a formal means of communication, and it's not uncommon for emails to be more detailed than those in Western cultures.
The use of honorific language is essential in Japanese emails, as it shows respect and politeness towards the recipient.
To use honorific language effectively, you should use polite phrases such as "Sumimasen" (excuse me) and "Arigatou" (thank you).
In Japan, it's customary to include a formal greeting such as "Konnichiwa" (hello) or "Ohayou gozaimasu" (good morning) in your email.
Email Structure and Format
Emailing in Japan requires a specific structure and format to ensure you're being respectful and clear in your communication. This format is a bit different from what you're used to in English.
The proper email format in Japan includes several key components, which are listed below:
- 件名 (けんめい) — Subject
- 宛名 (あてな) — Recipient
- 送信者 (そうしんしゃ) — Sender
- 本文 (ほんぶん) — Body
- 結び (むすび) — Concluding words
- 署名 (しょめい) — Signature
The subject line, or 件名, is a crucial part of the email format in Japan, as it should be very specific and long enough to give the recipient an idea of what the email is about before they open it.
Writing and Language
Writing and Language is a crucial aspect of emailing Japanese etiquette. To write effective emails, you need to pay attention to specific formatting and language norms.
In Japan, it's essential to use formal language in business emails. This includes using titles properly, such as including the correct honorific when addressing someone. For example, "Tanaka-sama, Toyota Corporation Information Technology Division" is a formal way to address someone.
When structuring the message, begin with a brief context before making a request. This sets the tone for the rest of the email and shows respect for the recipient's time. For instance, "We understand your team is evaluating cloud solutions. We request a conference at your convenience."
Replacing casual phrases with more formal alternatives is also key. This helps to convey respect and precision in your language.
Here are some examples of formal expressions to use in your emails:
- Using formal greetings, such as "Dear Mr./Ms./Mrs./Dr. [Last Name]"
- Acknowledging the recipient's expertise, such as "We appreciate your insight on this matter"
- Expressing gratitude, such as "Thank you for considering our proposal"
Business Communication
In Japan, business communication is a crucial aspect of building strong relationships and establishing trust. Mastering Japanese email etiquette is essential for thriving in Japan's growing SaaS market.

To establish trust, use formal language and proper honorifics in your emails. This will help you navigate the complex Japanese business hierarchy. For example, using the phrase "いつもお世話になっております" (Thank you for your support) at the beginning of an email shows respect and appreciation for the recipient's time.
A key aspect of Japanese business communication is politeness and humility. Even in emails, it's essential to use polite language and avoid direct requests. Instead, use phrases like "…は可能でしょうか" (Would it be possible to...) to ask for something without coming across as pushy. This approach will help you build stronger relationships with your Japanese business partners.
Here are some essential Japanese business email phrases to get you started:
Business and Personal Communication
In Japan, business and personal communication often involve a formal tone, which may differ from Western practices. This is especially true in email communication, where politeness, humility, and the use of Keigo (honorific language) are essential for reflecting professionalism.

Using formal language and proper honorifics is crucial for establishing trust in Japanese business communication. This includes phrases like "Thank you for your support" and "Regards" which are commonly used at the beginning and end of emails.
Japanese business culture values prompt responses, so it's essential to reply promptly to emails. This demonstrates reliability and a commitment to communication.
When writing emails in Japan, it's also important to use clear subject lines and organize information logically, as this aids group decision-making and helps stakeholders understand the content.
In personal communication, emails still maintain a formal tone, which can be different from Western practices. Understanding these nuances is essential for building strong relationships in Japan.
Here are some key phrases to include in your emails:
- いつもお世話になっております (Thank you for your support)
- ご返信 (Reply)
- ご対応 (Response)
- ご返信・ご対応ありがとうございます (Thank you for your fast reply/response)
- よろしくお願いいたします (Regards)
These phrases can help you build relationships and communicate effectively in Japan.
Is It Possible
When you want to schedule a meeting for a specific time, you can use this phrase to politely ask if it's feasible. This is especially useful when dealing with colleagues or superiors who have busy schedules.
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You can also use this phrase to request a change, such as extending a deadline or adjusting a meeting time. For example, you can say "Will it be possible to extend the deadline?" or "Would it be possible to adjust the meeting time?"
This phrase is versatile and can be used in various situations, making it a valuable tool in your business communication arsenal.
Japan-Specific Etiquette
Japan-specific etiquette plays a significant role in Japanese email communication. In Japan, emails are considered a modern incarnation of traditional letter writing, incorporating time-honored etiquette.
To show respect, it's essential to use polite language in your emails. For example, phrases like "ご教示ください / お知らせください" (Gokyouji kudasai / Oshirase kudasai) can be used to ask for information from a client or partner. These phrases are often used when waiting for a submission, such as asking for an estimated delivery date.
Here are some key phrases to keep in mind when emailing in Japan:
By incorporating these phrases and showing respect for Japanese etiquette, you can build strong relationships with your Japanese clients and partners.
Japan's Evolution
Japan has a unique approach to email etiquette, blending traditional customs with modern technology. This fusion of past and present is a testament to the country's ability to adapt to global changes while maintaining its cultural identity.
In Japan, emails are not just a means of communication, but a modern incarnation of traditional letter writing. This is reflected in the way Japanese emails are structured, with a focus on respect and politeness.
A good Japanese email typically starts with a formal greeting, followed by a clear subject line. The body of the email should be concise and to the point, with a clear call to action. This is essential for effective communication in a business setting.
Here are some key elements to include in a Japanese email:
- Formal greeting
- Clear subject line
- Concise body
- Clear call to action
In Japan, addressing recipients is also a crucial aspect of email etiquette. It's essential to use honorific titles and last names, especially when sending emails to someone you don't know well. This shows respect and professionalism.

When concluding a Japanese email, it's customary to end with a polite phrase, such as "Arigatou gozaimasu" (thank you very much). This is a sign of appreciation and respect for the recipient's time.
Japan's unique approach to email etiquette is not just about following rules, but about showing respect and appreciation for the people you communicate with. By incorporating these customs into your email communication, you can build stronger relationships and make a positive impression.
Japan Technical Requirements
Japan has a unique set of technical requirements for email communication, especially when dealing with business contacts.
Following specific technical guidelines is essential for effective SaaS communication with Japanese business contacts. This ensures that emails are received and understood accurately, even with language barriers.
Use a specific subject line that includes the recipient's name and a clear subject description, such as "Meeting with Tanaka-san on Project XYZ". This helps the recipient quickly identify and prioritize your email.
Additional reading: Use Gmail for Business Email
Use a formal greeting and sign off, such as "Dear Tanaka-san" and "Sincerely, [Your Name]". This shows respect and professionalism in your communication.
Be mindful of the character limit in email subject lines, which is typically around 50 characters in Japan. This is shorter than the usual limit in Western countries.
Use a clear and concise writing style, avoiding jargon and technical terms that might be unfamiliar to the recipient. This helps ensure that your message is understood correctly.
Use a standard font, such as Arial or Times New Roman, and avoid using too many fonts or colors in your email. This helps maintain a professional look and feel.
Include a clear and concise summary or abstract at the beginning of your email, especially if you're sending a long email or attachment. This helps the recipient quickly grasp the main point of your message.
Be sure to include a clear call-to-action, such as a meeting request or a deadline, to help the recipient understand what action is required.
Related reading: Email Addresses to Use
We Understand
In Japan, using the right phrases in business emails is crucial for effective communication. You can use 問題ございません (mondai gozaimasen) to respond to requests, such as moving a meeting time.
To show appreciation for someone's guidance, you can say ご教示ください / お知らせください (gokyouji kudasai / oshirase kudasai). For example, if you're waiting for a submission, you can ask for an estimated delivery date.
In Japan, using the right phrases in business emails is crucial for effective communication. Using 1.5× line spacing in your email improves mobile readability by 27%. This is especially important since 78% of Japanese professionals check emails on their smartphones.
Here are some key elements to format in Japanese business emails:
To ensure clarity and readability, keep paragraphs short (2–3 lines) and align text to the left for better kanji visibility. Using fixed-width tables (up to 600px) for multi-column layouts also helps improve readability.
Recipient and Sender
In Japan, it's considered polite to simply state the person's last name and title in the greeting of an email, without using honorific suffixes like -san or -sama. This is a departure from Western email etiquette, where a salutation like "dear so-and-so" is often used.
Including a sender information is also crucial in Japanese email etiquette. This should include a detailed explanation of who you are in relation to the recipient. For example, as a student, you might include your name, university, and course information.
If you're not a student, you should still include sender information, along with any other relevant details about your position or company, so the recipient knows who you are. For instance, you might include your company name, position, and full name.
In Japan, it's not uncommon to use the recipient's last name and title in the greeting, without using honorific suffixes. This is demonstrated in the example: "田中先生 (たなか せんせい) — Mr. Tanaka".
In the body of the email, it's a good idea to introduce yourself clearly, as shown in the example: "近代日本文学を履修している短期留学生のニコラス・サミです。" This translates to "Sami Nicholas, a short-term international student taking a course in modern Japanese Literature".
Useful Phrases and Expressions
When emailing in Japanese, it's essential to use the right phrases to convey politeness and respect. You will often see 'Thank you or best regards' at the beginning of an email, especially if you haven't emailed that person in a while or if you have never worked with that person before.
To apologize in Japanese, using 'Sorry for the sudden email' is a good starting point, but be aware that '幸い' can be seen as too casual and should be reserved for those you know well.
In your email, you may want to express that you understand something, and 'I understand' is one of the most common ways to do this in Japanese.
Phrases to Apologize
Apologizing in Japanese can be a delicate matter, and using the right phrase can make all the difference.
The phrase 幸いです (saiwai desu) is often used to apologize in casual contexts, but be aware that it may come across as too informal.

In some cases, it's better to reserve this phrase for those you know well and have a closer relationship with.
If you're sending multiple emails to someone before they've replied, try using 度々申し訳ございません (tabitabi moushiwake gozaimasen), which roughly translates to "Sorry for the sudden email."
This phrase is often used at the beginning of an email and is a polite way to acknowledge your previous messages.
To apologize for sending a flurry of emails, consider using 五月雨式に申し訳ございません (samidare shiki ni moushiwake gozaimasen), which translates to "Sorry for the downpour of messages."
This phrase is slightly more formal than 度々申し訳ございません and can be used in similar situations.
Other Useful Phrases
If you want to show that you've understood the message, there are several useful phrases to use in Japanese. 了解です (ryoukai desu) is one of the most common ways to say "I understand".
To start an email, you can use "Thank you or best regards" at the beginning, especially if you haven't emailed that person in a while or if you have never worked with them before.
To express that you've received and understood a message, you can use phrases like かしこまりました (kashikomari mashita), which is another way to say "I understand".
Signature
In Japan, the way you sign off an email is just as important as the way you address the recipient.
The typical Japanese business email signature includes the company name, the recipient's position, and the recipient's name, written in a specific order like "日本株式会社 製造部部長 越田泰生様".
When including titles such as 'president' or 'manager', it's considered polite to keep the honorific connotation intact, so you wouldn't use "様" after a title like "越田部長様", as it duplicates the honorific connotation.
The signature should be concise and to the point, without any unnecessary information.
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