Skip to content
Examples of formal versus informal Japanese email language visualisation

Examples of formal versus informal Japanese email language

Perfect Your Japanese Email Writing with Our Professional Templates: Examples of formal versus informal Japanese email language
Learn with Comprenders App Join Telegram Courses About Comprenders

Here are examples of formal versus informal Japanese email language, illustrating how the tone and expressions differ depending on the context:

Formal Japanese Email Language

  • Used with superiors, clients, or external partners in business or respectful contexts.
  • Often includes honorifics and humble expressions.
  • Example phrases:
    • いつもお世話になっております (Itsumo osewa ni natte orimasu) — “Thank you for your continued support.”
    • 先ほどはありがとうございました (Sakihodo wa arigatou gozaimashita) — “Thank you for your time just now.”
    • 大変恐縮ですが、よろしくお願い申し上げます (Taihen kyoushuku desu ga, yoroshiku onegai moushiagemasu) — “I am very sorry to trouble you, but thank you in advance.”
    • 突然のご連絡、失礼いたします (Totsuzen no gorenraku, shitsurei itashimasu) — “Sorry for the sudden email.”
    • お気軽にご連絡ください (Okigaru ni gorenraku kudasai) — “Please feel free to contact me.”
  • Example email opening:
    • 田中太郎様 (Tanaka Taro-sama) — honorific for recipient
    • いつもお世話になっております。ABCの佐々木です。 (Thank you for your support. This is Sasaki from ABC.)
    • 企画書を修正いたしましたので、添付資料をご確認ください。 (I have updated the proposal, please check the attached documents.) 1 2

Informal Japanese Email Language

  • Used among close colleagues, friends, or in casual settings.
  • More direct, uses plain forms instead of honorifics.
  • Example phrases:
    • ありがとう (Arigatou) — “Thanks” instead of ありがとうございます
    • よろしくお願いします (Yoroshiku onegaishimasu) — standard polite but less formal closing
    • 気軽に連絡してね (Kigaru ni renraku shite ne) — “Feel free to contact me” (casual)
    • それで大丈夫？ (Sore de daijoubu?) — “Is that okay?”
  • Pronouns and verb forms are less formal:
    • Informal: わかんない (Wakannai) vs Formal: わかりません (Wakarimasen)
    • Referring to oneself: ぼく (boku) or 私 (watashi) in informal versus 私 (watashi) in formal
  • Greetings like やあ or こんにちは, depending on closeness, greetings are simpler and less ritualized. 3 4

Understanding the Key Differences Between Formal and Informal Email Language

The core difference between formal and informal Japanese email language lies in the level of politeness and the use of keigo (敬語), the Japanese system of honorific and humble speech. Formal emails heavily rely on sonkeigo (respectful language) and kenjougo (humble language) to show respect towards the recipient and emphasize the sender’s humility. For example, verbs such as する (to do) become なさる in respectful language or いたす in humble language.

In contrast, informal emails use plain verb forms and casual vocabulary, reflecting familiarity between the sender and the recipient. This distinction is not just about politeness but also about maintaining appropriate social distance, which is culturally significant in Japan.

When to Use Formal Versus Informal Email Language

Choosing the appropriate register depends on several factors:

  • Relationship to recipient: With superiors, clients, or unknown contacts, use formal language. Among close colleagues, friends, or peers of the same rank, informal language is acceptable.
  • Context: Business or official matters require formality. Casual or personal communications allow informal tone.
  • Company culture: Some Japanese companies expect strict formality even between coworkers, especially older generations or traditional industries. Startups or creative fields may accept more casual communication.
  • Email purpose: Requests, apologies, and proposals tend to demand formal phrasing to express politeness and professionalism.

Concrete Examples Comparing Formal and Informal Emails

SituationFormal Japanese ExampleInformal Japanese Example
Opening greeting田中太郎様 (Tanaka Taro-sama)太郎さんへ (Taro-san e)
Self-introductionABC株式会社の佐々木でございます。いつもお世話になっております。こんばんは、佐々木です。いつもありがとう。
Explaining attachment添付ファイルをご確認いただけますと幸いです。添付したファイル、見てね。
Making a requestご多忙のところ恐れ入りますが、ご確認のほどよろしくお願い申し上げます。急だけど、見てくれる？
Closing phrase今後とも何卒よろしくお願い申し上げます。また連絡してね。

Common Mistakes and Pitfalls in Japanese Email Tone

  • Overusing honorific language in informal emails can sound unnatural or sarcastic.
  • Being too casual in business emails may offend or seem unprofessional.
  • Mixing formal and informal phrases creates inconsistency, confusing the reader.
  • Using direct translations of English phrases without understanding Japanese politeness norms (e.g., avoiding blunt requests like “Please check this”).
  • Neglecting appropriate closing formulas, which in Japan hold significant weight in maintaining harmony.

Polite Phrases That Work in Both Formal and Informal Contexts

Some expressions are versatile, depending on tone and context:

  • よろしくお願いします (Yoroshiku onegaishimasu) can close both formal and casual emails, though intonation and relationship distinguish meaning.
  • ありがとうございます (Arigatou gozaimasu) is polite but can be softened to ありがとう (Arigatou) informally.
  • お疲れ様です (Otsukaresama desu) is a phrase used commonly in work emails both formally and semi-informally to acknowledge effort.

Tips for Pronunciation and Tone When Reading Japanese Emails Aloud

In spoken Japanese, even writing often reflects spoken culture. Formal Japanese maintains a steady, calm tone, with deliberate pronunciation of keigo forms to signal respect. Informal Japanese uses faster, more casual intonation and may include sentence endings like ね (ne) or よ (yo) to indicate friendliness or emphasis.

Active conversation practice, including simulated email exchanges with native speakers or AI tutors, helps internalize these subtle tone distinctions, enhancing real-world communication skills.

Summary Table of Example Phrases

PurposeFormal JapaneseInformal Japanese
Greetingこんにちは。はじめまして。やあ。はじめまして。
Thankingありがとうございます。ありがとう。
Requestお願いします。頼む。
Saying Sorry申し訳ございません。ごめん。
Questionわかりません。わかんない。
Closingよろしくお願い申し上げます。よろしくお願いします。

These examples show how formal emails maintain polite, respectful, and carefully structured language, while informal emails use more relaxed and casual expressions suited to familiar relationships. Understanding these nuances helps learners communicate appropriately and effectively in Japanese written contexts.

References