Do not simply copy the sample documents for on the motive of the naturalization application
It is necessary to write a letter of motivation when you apply for naturalization. However, many do not know how to write a motivation letter in detail or why they should write one at all. This topic explains how a motivation letter works, what points you need to write and what you should pay attention to.
What is a motivation letter?
It is a document in which you express “why you want to become a Japanese citizen". It includes a summary of your background, how you ended up in Japan, what you have been doing since you arrived in Japan, what you think of Japan, your academic background and major, your family situation, your future goals, etc.
The Legal Affairs Bureau uses this document not only to evaluate your sincerity and reasons for wishing to naturalize, but also to assess your integration into Japanese society and your long-term stability.
Because of this, vague or overly short statements are discouraged. It is better to provide concrete episodes from your life in Japan, such as work achievements, friendships, or community involvement.
They will often compare what you write with other submitted documents (tax records, employment history, family registry information, etc.) to check for consistency, so accuracy is just as important as sincerity.
Specifically, you should write about the following.
- When and where were you born?
Write your place of birth, date of birth, family circumstances and living conditions in your home country, and your image of Japan.
- Activities after you arrived in Japan
Describe what you do in Japan.
- Family situation
Whether your family is harmonious or not, whether you have adapted to life in Japan, etc.
- Academic background and field of study
Write down what you learned during your school years, what subject you studied, etc.
- Reason and purpose of your visit to Japan
Background that led to your visit and your motivation for coming to Japan.
It is often effective to connect your personal background to your current contribution to Japan, such as pursuing education, working for a Japanese company, or raising a family, to show continuity in your life story.
For example, mentioning how you overcame challenges—like learning Japanese, adapting to work culture, or supporting your local neighborhood—shows persistence and strengthens your case.
Applicants who demonstrate how their goals align with Japan’s social or economic interests—for example, contributing to local communities, supporting their Japanese spouse’s family, or volunteering—tend to leave a stronger impression.
- Life in Japan, current occupation
Marriage, presence or absence of children, work environment and job satisfaction, etc.
- That you have had no behavioural problems in the past
If you have no criminal record or traffic violations, indicate that you meet the good behaviour requirement.
- Thoughts on naturalization
- Dreams for the future
- Social contribution you have made so far, social contribution you would like to make in the future, etc.
Important points about the letter of motivation for naturalization
- Be sure to write it by hand.
You can fill out the application form for naturalization permit on the computer, but in principle, you should write the motive for naturalization by hand.
If you find it difficult to write by hand due to physical reasons, you should consult with the Legal Affairs Bureau.
Handwritten letters are valued because they are believed to reflect the applicant’s genuine effort and personal feelings, which cannot be conveyed as strongly through typed documents.
Applicants are also advised to write in simple, clear Japanese rather than complicated or borrowed phrases, as examiners prefer natural expression over perfection.
The writing style does not need to be overly formal; what matters most is that it clearly conveys your own voice, experiences, and aspirations in Japan.
- Children under 15 years of age do not have to write a motive.
Anyone under the age of 15 must submit the application with a family member. However, a motivation letter is not required.
- Exemption for special permanent residents
Special permanent residents are exempt from submitting a letter of motivation.
- Avoid motives that indicate your desire to obtain a Japanese passport or that mimic the motives in the naturalization guidelines.
The situation that led to the naturalization application varies from person to person. If you only mimic example sentences, it will seem unnatural and you will not be able to convey your enthusiasm.
Summarize the main points in about 500 to 600 Japanese characters.
Summary
A motivation letter is a document in which you explain why you want to become a Japanese citizen, such as your background, how you came to Japan, your activities after arriving in Japan, and your feelings about Japan. It should be handwritten.
Individuals under the age of 15 are not required to submit the letter of motivation, and permanent residents are also exempt from this requirement.
The situation that led to the naturalization application varies from person to person. It is important to summarize the points concisely and write concretely, because it will look unnatural if you just mimic the sample sentences, and you will not be able to convey your enthusiasm.
Ideally, the letter should demonstrate not only your motivation but also your commitment to contributing to Japanese society in the future, whether through work, family, community involvement, or other meaningful activities.






















