What Japanese Language Skills Are Required To Apply For Japanese Naturalization?


When foreigners apply for Japanese naturalization, although Japan's Nationality Law does not explicitly specify Japanese language requirements, in practice, a proficiency level equivalent to that of a third-year elementary school student is typically required.

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Japanese Language Skills Required for Naturalization

  • Ability to converse in Japanese
  • Ability to read Japanese texts
  • Ability to write in Japanese

Even if you are fluent in Japanese conversation, your naturalization application will not be approved if you cannot read and write. Upon becoming a Japanese citizen, you gain voting rights. Without reading and writing skills, you would be unable to read candidates' names or write them on a ballot. This is why literacy is a key requirement for naturalization.

How to Check Your Japanese Language Proficiency Level

If you are curious about your Japanese proficiency level, here are two methods to assess it:

Method 1: Preliminary Consultation at the Legal Affairs Bureau

You can schedule a preliminary consultation for naturalization at the Legal Affairs Bureau with jurisdiction over your place of residence. During this consultation, you can discuss your background, reasons for seeking naturalization, and whether you are eligible to apply, as well as learn about required documents. You can also mention concerns about your Japanese proficiency, and the officer may conduct a simple assessment on the spot.

Preliminary consultations at the Legal Affairs Bureau require reservations and are available only on weekdays. Some bureaus may have specific days or times for consultations, so please confirm by phone in advance.


Method 2: Take a Japanese Language Proficiency Test

Another method is to take a Japanese language proficiency test. If you have previously taken such a test, your results can serve as a reference.

What is the Third-Year Elementary School Level?

  • Japanese Language Proficiency Test (JLPT): N4 or higher
  • Japan Foundation Test for Basic Japanese (JFT-Basic): A2 or higher

Even if you have taken a Japanese proficiency test, the Legal Affairs Bureau may require an additional Japanese test depending on the circumstances.
For information about the Japanese Language Proficiency Test (such as test dates), refer to the JLPT official website.

Scenarios Where Japanese Proficiency is Assessed

Your Japanese proficiency will be evaluated in the following scenarios during the naturalization process:

  1. Preliminary consultation at the Legal Affairs Bureau
  2. Content of submitted documents, such as the “motivation letter”
  3. During application submission at the Legal Affairs Bureau
  4. Interview at the Legal Affairs Bureau after application submission

During the preliminary consultation, if your Japanese proficiency is deemed insufficient, you may be advised to study Japanese before applying. At the time of application submission, some applicants may be required to take a Japanese test on the spot. Even if no test is conducted during submission, a Japanese test may be administered during the subsequent interview.

Content of the Japanese Test

The Japanese test for naturalization applications typically takes about 15 minutes, and the content varies by Legal Affairs Bureau. Common components include:

  • Writing the pronunciation of kanji
  • Converting hiragana to kanji
  • Converting hiragana to katakana or katakana to hiragana
  • Reading a passage and selecting the correct answer

How to Prepare for the Japanese Test?

It is recommended to prepare by studying for the Japanese Language Proficiency Test (JLPT) at the N4 or N3 level.
The JLPT official website provides level-specific practice questions, which you can try at the official website.
Additionally, purchasing “kanji workbooks” or “Japanese language workbooks” designed for third-year elementary school students at Japanese bookstores is also a good option for study.

Summary of Japanese Language Requirements for Naturalization

This article has outlined the Japanese language proficiency required for applying for Japanese naturalization. Naturalization applications require more documentation than visa applications.

However, even if you meticulously prepare all the required documents, insufficient Japanese proficiency may lead to rejection during the interview.

If you need further assistance, you can consult an administrative scrivener specializing in naturalization and visa applications.

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