Naturalize Japan: Citizenship

Naturalize Japan

Your Complete Guide to the Japanese Naturalization Journey (帰化申請)

Thinking about becoming a Japanese citizen under the new naturalization rules (April 2026)?

The hardest part isn’t deciding to apply.

It’s knowing what you need, when you need it, and whether you’ve missed something important.

Documents. Tax records. Pension history. Translations. Forms. Interviews. 法務局 appointments.

One missing document or unclear step can turn an already stressful process into an even bigger one.

Naturalize Japan turns the complicated naturalization journey into a clear, organized path.

From your first eligibility check to application preparation and post-approval steps, keep your progress, documents, deadlines, and preparation in one private place.

KNOW WHERE YOU STAND

Not sure whether you’re ready to start?

Track your residence history and important milestones to better understand your preparation timeline, including student and work periods.

Stop guessing. Start preparing.

NEVER LOSE TRACK OF A DOCUMENT

Your naturalization application can involve a large number of documents.

Naturalize Japan helps you organize and track important items such as:

• 住民票
• Tax records
• Pension records
• Translated certificates
• 動機書 (Motivation Statement)
• Family and spouse documents

See what’s Ready and what’s still Pending, so you can focus on what needs attention next.

KNOW WHAT TO DO NEXT

Naturalization preparation is a long process.

Set your planned application date and receive milestone reminders at:

90 → 60 → 30 → 15 → 7 days

Each reminder helps ensure important tasks don’t get forgotten.

PREPARE WITH CONFIDENCE

Get structured guidance for the 帰化 process, including:

• Naturalization roadmap
• 動機書 (Motivation letter) structure and guidance
• Certificate translation examples
• Tax and pension preparation guidance
• Application preparation guidance
• Interview preparation
• Communication templates for the 法務局
• Post-approval procedures and next steps

Instead of searching through countless websites, notes, and saved documents, keep your preparation organized in one place.

YOUR NATURALIZATION JOURNEY, ORGANIZED

From self-assessment to application preparation and 官報 publication after approval, Naturalize Japan helps you see the bigger picture.

One journey. One timeline. One place to prepare.

PRIVATE BY DESIGN

Naturalization involves highly personal information.

Naturalize Japan is designed with privacy in mind:

• No account required
• No cloud storage
• Secure on-device storage
• Screenshot protection

Your information stays on your iPhone.

UNLOCK NATURALIZE JAPAN PRO

Get the complete preparation toolkit with a one-time purchase.

Pro includes:

• Detailed document templates
• Sample entries and examples
• Financial declaration guidance
• Interview preparation modules
• 法務局 communication templates
• Additional preparation resources

¥2,980 — One-time purchase
No subscription. Lifetime access.

Launch pricing may increase as new features and resources are added.

BUILT FOR FOREIGN RESIDENTS IN JAPAN

Naturalize Japan was created to make the Japanese naturalization process easier to understand and organize for people building their lives in Japan.

No need to navigate everything alone.

You’ve already built a life in Japan.

Now prepare for the next chapter.

Naturalize Japan — Make your naturalization journey clearer, one step at a time.


LEGAL DISCLAIMER

Naturalize Japan is an independent organizational and reference tool. It does not provide legal advice and is not affiliated with the Ministry of Justice or any Japanese government authority.
Naturalization requirements and procedures can vary. Always confirm current requirements with your local 法務局 (Legal Affairs Bureau) or a qualified 行政書士.

All content, timelines, and document guidance are based on publicly available information and real application experience. However, requirements may change, and individual circumstances can affect outcomes.