On April 1, 2026, alongside the mandatory address/name change registration requirement, Japan introduced the "Smart Henkoutouki" (Smart Property Registration Update) system. With a one-time registration at the Legal Affairs Bureau, property owners have future address and name changes automatically reflected in the property register by the Bureau itself — free of charge, no digital certificate required.
What Is the Smart Property Registration Update System?
Formally called the "Automatic Registration Update System Based on Searchable Information Submission," it lets property owners submit their date of birth, email address, and property location details ("searchable information") to the Legal Affairs Bureau. The Bureau monitors the Basic Resident Register Network (住基ネット / Juki Net) and, on detecting an address or name change, confirms it with the owner and updates the registration using its official authority — free of charge.
Since April 1, 2026, property owners must register any address or name change within 2 years. Non-compliance without valid reason may draw a civil fine of up to ¥50,000. The Smart Registration Update system offers an easy way to comply automatically.
How to Register — 3 Simple Steps
- Access the Ministry of Justice "Kantan Toki / Kyotaku Shinsei" (Simple Registration/Deposit Application) portal via a web browser. No IC card reader required.
- Select "Submit Searchable Information" and enter your name, date of birth, email address, and property location details (lot number, etc.).
- Submission complete. When your address or name changes in the future, the Bureau sends a confirmation email. Upon your approval, the Bureau updates the register automatically.
Paper submissions are also accepted at your jurisdiction's Legal Affairs Bureau.
Cost
There is no charge for using this system — the submission fee, registration update fee, and registration tax (登録免許税 / torokumenkyo-zei) are all waived. By comparison, hiring a judicial scrivener (司法書士) for a standard address change registration typically costs ¥1,000 in registration tax plus professional fees of several tens of thousands of yen.
Important Caveats
① Updates Are Not Immediate
The Bureau queries Juki Net at least once every two years, so address changes are not reflected instantly. If you need an up-to-date registration urgently — e.g., when selling property, setting up a mortgage, or completing inheritance registration — file a change registration yourself through the standard process.
② You Must Respond to the Bureau's Confirmation Email
After detecting a change, the Bureau sends a confirmation email to your registered address. Without a response, the registration will not be updated, so keep your email current and watch for Bureau communications.
③ Name Changes Require Additional Verification
For name changes (e.g., marriage or divorce), family register (戸籍 / koseki) information may need cross-referencing alongside Juki Net data. Consult the Legal Affairs Bureau in advance if a name change is involved.
④ Legal Entities Use Their Corporate Registration Number
Companies and other legal entities owning real estate can submit their corporate registration number (会社法人等番号) to the Bureau; the same automatic update mechanism applies when the corporate address changes.
Who Benefits Most
- People who move frequently (e.g., renting and relocating regularly)
- Property owners who have not updated their registration after past address changes
- Heirs who inherited property and plan to hold it long-term
- Anyone who wants to ensure smooth future inheritance procedures
Key Takeaways
- Smart Property Registration Update system launched April 1, 2026
- One-time submission of searchable information → Legal Affairs Bureau handles future updates automatically
- Zero cost; no digital certificate required
- Helps comply with mandatory address change registration (2-year deadline; up to ¥50,000 fine for non-compliance)
- Updates are not instantaneous (Bureau checks Juki Net at least once every 2 years)
- Must respond to the Bureau's confirmation email for the update to take effect
For questions about inheritance registration, property registration, or address change registration, contact Sakura Central Legal Office (Juris Doctor / Gyoseishoshi).
⚖️ Expert Comment — Licensed Gyoseishoshi (Administrative Scrivener)
📋 Practical Impact
Japan's inheritance law has changed significantly in recent years. Since mandatory inheritance registration took effect in 2024, acting promptly on estates with real property is a legal requirement, not just best practice.
⚠️ Common Pitfalls
Estate division agreements and inheritance registration require consent from all heirs and a complete family registry. One missing co-heir or incomplete document can halt the process, and cross-border estates with foreign-national heirs add further complexity.
✅ Action Steps
If you are dealing with a Japanese estate, contact a specialist for an initial assessment. See our Inheritance & Will services or schedule a free consultation.