How to register your dog in Tokyo: the ward office, the rabies tag, and everything expats get wrong

The thing that trips up almost every newcomer to Tokyo with a dog is simple: the first step after bringing a dog home is not calling your vet. It is going to your ward office. Japan's dog registration system is administered not by a national database and not by a veterinary clinic, but by the local municipal authority — the ward office (区役所, kuyakusho) in Tokyo's 23-ward central area, or the city or town hall in the larger Tokyo municipalities further out. The law that governs this is the Act on Rabies Prevention (狂犬病予防法, Kyōkenbyō yobō hō), first enacted in 1950, and it creates a two-part annual obligation for every dog owner in Japan: registration, and annual rabies vaccination.

These two obligations are linked but distinct. Registration is done once (when you first acquire the dog), and the ward issues a permanent registration tag. The rabies vaccination is required annually and produces a separate annual tag that changes year to year. Both tags must be attached to your dog's collar at all times. The system works elegantly once you understand it, but the bureaucratic routing — ward office for registration, ward-designated vaccination events or your vet for the annual rabies shot — is genuinely non-obvious if you are arriving from a country where all of this happens at the vet clinic.

Step 1: Register at your ward office within 30 days

Under Article 4 of the Rabies Prevention Act, every dog owner is required to register their dog with the relevant municipal authority within 30 days of acquiring the dog (or within 30 days of the dog reaching 91 days of age, if it was acquired younger). In the 23 wards of central Tokyo, this means visiting your ward office — specifically the section that handles environmental health or public health affairs (保健所関連窓口 or 環境保全課 depending on the ward). You do not need an appointment; dog registration is handled as a walk-in service.

What to bring: proof of your address in the ward (your residence card, 在留カード zairyū kādo, or a utility bill), your dog's name, breed, sex, date of birth or approximate age, and the colour and coat description. You will also be asked for the microchip number if your dog is already chipped — microchipping is not legally required under the Rabies Prevention Act, but it is strongly recommended and is required for dogs imported into Japan (see the MAFF import quarantine section below). The registration form is available at the ward office counter and is generally a single A4 page; ward offices in areas with large expat communities (Minato, Shibuya, Shinjuku, Setagaya) often have English-speaking counter staff or English forms available.

• Registration fee: ¥3,000 (one-time, permanent registration). This fee does not need to be paid again annually — it is a one-off.
• The ward issues a permanent registration tag (鑑札, kanasatsu) — a metal disc embossed with a registration number. This tag is your dog's permanent ID tag in Japan and must remain on the collar.
• Your dog is assigned a registration number in the ward's database, linked to your name and address.
• If you already have a registration from another ward or municipality (e.g. you are moving to Tokyo from another city), you can transfer the registration rather than re-register. Bring your existing kanasatsu and documentation to the new ward office.

Step 2: The annual rabies vaccination — and the tag that comes with it

Every registered dog must receive an annual rabies vaccination, and proof of that vaccination — in the form of a ward-issued metal vaccination tag (狂犬病予防注射済票, kyōkenbyō yobō chūsha-zumi hyo) — must be attached to the collar alongside the permanent registration tag. This is Japan's system for maintaining rabies-free status, and it is taken seriously: Japan has been free of indigenous rabies in dogs since 1957, a remarkable public health achievement sustained in part by this annual vaccination programme.

The vaccination tag is issued by the ward, not by your vet. The mechanism works as follows: you have your dog vaccinated by a licensed veterinarian, who provides a certificate of vaccination (注射済証明書, chūsha-zumi shōmeisho). You then take that certificate to your ward office, pay the tag fee (approximately ¥550, though this varies slightly by ward), and receive the current year's tag. Alternatively — and this is where the distinctly Japanese system becomes rather convenient — many wards organise annual spring vaccination clinics (集団接種, shūdan sesshū) where vet-administered vaccinations, on-site certification, and tag issuance happen at one location in a single visit. These events typically run from April to June and are announced in ward newsletters (区報, kūhō) and on ward websites.

What happens if you miss the annual vaccination?

Failure to vaccinate annually is a violation of the Rabies Prevention Act and can result in a fine. More practically, if your dog is picked up by animal control or involved in an incident, the absence of a current vaccination tag on the collar will complicate the situation significantly. The annual system is genuinely enforced, and the peer-norm culture around it in Japan is strong — most dog owners treat April or May as the fixed point in the year when the vaccination and tag are renewed.

Moving between wards: what to do

If you move from one Tokyo ward to another, or from a different city to Tokyo, you are required to notify both the old and new authorities. The process is simpler than the initial registration: within 30 days of moving, go to your new ward office with your dog's existing kanasatsu (permanent registration tag), your previous registration certificate if you have it, and your new address documentation. The new ward will issue an updated record and a new kanasatsu; the fee for a transfer registration is generally lower than the initial ¥3,000 — some wards charge ¥0 for a transfer within Japan, others charge a small administrative fee. Confirm with your specific ward.

Microchipping and the collar tag requirement

Japan does not currently require microchipping of domestic dogs under the Rabies Prevention Act. However, the Animal Welfare Act (動物愛護法) was amended in 2022 to mandate microchipping for dogs and cats sold by breeders and pet shops (effective June 2022), and the practical effect is that most dogs acquired through commercial channels in Japan from that date forward are microchipped. Microchipping for dogs acquired through rescue or from individuals remains voluntary but strongly encouraged. The collar-tag requirement under the Rabies Prevention Act is separate and exists in addition to any microchip — both must be on the collar.

Summary: the complete registration checklist for Tokyo dog owners

• Within 30 days of acquiring your dog: visit your ward office (区役所) with your address documentation and dog details. Pay the ¥3,000 registration fee. Receive your permanent kanasatsu tag.
• Annually in spring (April–June): have your dog vaccinated against rabies by a licensed vet, or attend your ward's shūdan sesshū event. Obtain the chūsha-zumi shōmeisho (vaccination certificate) and take it to the ward office to receive the current-year vaccination tag (~¥550). Attach both tags to the collar.
• If you move wards: notify both the old and new ward offices within 30 days.
• Keep the kanasatsu tag on the collar at all times. If it is lost, the ward can issue a replacement (small fee applies).
• Record your dog's registration number and keep the paperwork. You will be asked for it at various points — boarding facilities, dog-friendly hotels, and sometimes parks.
• Check your ward's website or kūhō newsletter each February for the spring vaccination schedule.