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Japanese Documents Translation UK Visa: 2026 Guide

Japan does not issue separate birth or marriage certificates the way most countries do. Its civil records sit inside the koseki (family register) and the juminhyo (residence record). UK visa applicants must translate certain extracts from these records. Most rejections come from three things: era-based dates, kanji-to-romaji names, and the wrong document name. This guide shows you exactly what UKVI expects.

2026-08-319 min readDocument Guides

Core Japanese Civil Documents

Japanese DocumentPurposeUK Use Case
戸籍謄本 (Koseki Tohon)Complete family registerSpouse, dependant, ancestry visas
戸籍抄本 (Koseki Shohon)Individual extract from registerBirth or marriage evidence
住民票 (Juminhyo)Residence recordAddress proof, cohabitation
出生届受理証明書Birth notification receiptUsed when koseki not preferred
婚姻届受理証明書Marriage notification receiptSame-day marriage evidence
独身証明書 (Dokushin Shomeisho)Certificate of no impedimentUK marriage for Japanese national

Koseki Tohon vs Shohon — Which Do You Need?

The tohon shows the whole family unit. The shohon shows only the named person. For Spouse visa applications, UKVI usually wants the tohon, because it proves the marriage entry. For a simple birth confirmation, the shohon is enough and costs less to translate.

Japanese Era Dates — The Most Common Error

Japanese official documents use imperial era dates (令和, 平成, 昭和) instead of Gregorian years. The translator must convert them correctly. A wrong birth or marriage year can sink a visa application.

EraStart YearExample
令和 (Reiwa)2019令和7年 = 2025
平成 (Heisei)1989平成30年 = 2018
昭和 (Showa)1926昭和55年 = 1980
大正 (Taisho)1912大正10年 = 1921

Name Conventions (Kanji / Katakana / Romaji)

Japanese names in a koseki are written in kanji. The translation must show three things: the kanji, the hiragana or katakana reading (furigana), and the romaji spelling. The romaji must match the passport exactly. A mismatch with the passport Hepburn spelling is a top-three cause of rejection.

Common Pitfall: Long Vowels (Ohno vs Ono)

A name like 大野 can be written as Ono, Ōno, Ohno, or Oono, depending on the style used. Your translator MUST copy the exact spelling on your passport, not their preferred style. Always send the translator a passport scan with the koseki.

Academic Documents (Tsushinbo, Sotsugyo Shosho)

  • 卒業証明書 (Sotsugyo Shomeisho) — graduation certificate
  • 成績証明書 (Seiseki Shomeisho) — academic transcript
  • 学位記 (Gakuiki) — diploma / degree certificate
  • 在学証明書 — certificate of enrolment (Student visa)
  • 学士/修士/博士 indications — must be translated to Bachelor/Master/Doctor

Frequently Asked Questions

Does a Japanese koseki need an apostille?

Yes. For most UK visa uses, get the koseki apostilled at the Ministry of Foreign Affairs (MOFA) in Tokyo or Osaka before you have it translated. The apostille must be translated too.

How long are koseki valid for UKVI?

UKVI normally expects one issued within 3 months. A koseki older than 6 months may be questioned. If in doubt, order a fresh copy from your honseki municipal office.

Can I submit only an extract (koseki shohon) for a Spouse visa?

Sometimes. But UKVI often asks for the full tohon, so it can see both partners on the same register. Send the tohon from the start and you avoid a follow-up request.

What about my partner's Japanese name on a UK document?

The UK document (for example, a UK marriage certificate) uses your Japanese partner's passport spelling. The koseki translation should use that same spelling, so both documents match.

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