Your First Japan Quest: Conquering City Hall (and Getting an Address!)

Just arrived in Japan and feeling a bit overwhelmed? Your first big administrative hurdle is city hall registration. Don't worry, I've been there, and I'll walk you through how to get it done without losing your mind!

Updated October 2026: your My Number now arrives as a letter (個人番号通知書, kojin bango tsuchisho), not the old paper card, and the My Number Card has replaced the paper health insurance card, which expired on 1 December 2025. Since 14 June 2026 you can also get a residence card that doubles as your My Number Card. The My Number section below is up to date.

Why Your City Hall Visit is a Big Deal

Okay, so you’ve just landed in Japan, probably still a bit jet-lagged, maybe figuring out which end of the chopsticks goes where. Amidst all the excitement, there’s one crucial task that probably feels like the ultimate bureaucratic boss battle: registering at your local city or ward office (市区町村役場).

I know, paperwork. But trust me, this isn't just a suggestion; it’s the law! You're actually required to tell them where you live within 14 days of moving in. Think of it as your official "I'm here!" announcement to Japan.

This registration is your golden ticket to basically everything else you’ll need to do. Without it, you're stuck in limbo. You can't get proper health insurance, apply for that all-important My Number card, open most bank accounts, or even sign a phone contract. Plus, immigration actually checks your address when you go to renew your visa. So, let’s get this done!

What You Unlock by Registering

Once you’ve tackled city hall, a whole world of essential services opens up to you. It’s like leveling up in a video game!

  • National Health Insurance (国民健康保険, kokumin kenko hoken) — This is mandatory if your employer doesn't cover you. Without registration, no insurance, which means a surprise visit to the doctor could cost you an arm and a leg (literally, probably not, but you get the idea).
  • My Number (マイナンバー) — Your unique 12-digit number for taxes, social insurance, and banking. You'll get a notification by mail, and you can even apply for the physical card during your visit.
  • Proof of address — Your Residence Card will get your address printed on the back. This little stamp is pure gold for opening bank accounts, getting a phone, or renting an apartment.
  • Resident certificate (住民票, juminhyo) — An official document you can grab from the office proving your address. You'll need this more often than you think for various applications.
  • Access to local services — Think library cards, community centers, disaster notifications (hopefully you won't need these!), garbage schedules, and neighborhood info. You'll officially be part of the community!

Grab These Docs (Don't Forget Them!)

Before you head out, make sure you have these essentials. It’s always best to bring the originals, just in case!

  • Residence Card (在留カード) — You should have gotten this at the airport when you arrived (if you landed at a major one) or from an immigration office. This is your most important ID in Japan!
  • Passport — Always a good idea to have it as extra identification.
  • Move-in notification form (転入届, tennyu todoke) — Don't worry, you can get this at the office itself. The staff are usually super helpful and can guide you through filling it out, even if your Japanese is still in "konnichiwa" mode.

If you're moving with your family, you’ll need a few more bits:

  • Your family members' Residence Cards and passports.
  • Your marriage certificate or family register (if it's from abroad, make sure it's translated into Japanese!).

Pro tip: Make copies of everything before you go, just for your own records. You might not need them, but it feels good to be over-prepared, right?

Your Step-by-Step City Hall Adventure

Deep breaths! This might seem daunting, but it's totally manageable. Here’s a simple breakdown of what to do:

  1. Find your local office — Google Maps is your best friend here! Search for your city's 市役所 (shiyakusho), 区役所 (kuyakusho), or 町役場 (machiyakuba). If you're in a big city like Tokyo, each ward (区) has its own office. Sometimes there are smaller branch offices (出張所) that can also handle registrations, which might be less crowded!
  2. Head to the residents' section — Once inside, look for signs that say 住民課 (jūminka) or 市民課 (shiminka). If all else fails, just ask at the information desk (案内 - annai) for 転入届 (tennyūtodoke - move-in notification).
  3. Take a number and settle in — Most offices use a number ticket system. Grab a ticket and find a seat. Wait times can vary wildly – sometimes it's quick, other times you might be there for a good 20-60 minutes. Bring a book or mentally practice your Japanese numbers!
  4. Fill out the form — When your number is called, you'll get the move-in notification form. You’ll need to write your name (in both katakana and romaji), date of birth, nationality, your new address, and the date you moved in. Don't be shy about asking for help if you're stuck; the staff are trained to assist.
  5. Present your documents — Hand over your Residence Card and passport. The clerk will process your registration and, crucially, print your shiny new address on the back of your Residence Card. Congrats, you're officially registered!
  6. Tackle other services (optional, but smart!) — While you're there, you can often knock out a few other essential tasks in the same visit. Ask about:
    • Enrolling in National Health Insurance (if your employer doesn't cover you).
    • Applying for your My Number card.
    • Registering for the National Pension (if applicable).
    • Applying for child allowance (児童手当, jidou teate) if you have little ones.
    It's like a bureaucratic buffet – might as well fill your plate while you're there!

Getting Your My Number Sorted

Your My Number (マイナンバー) is that 12-digit individual number Japan uses for all sorts of official stuff. Here's the lowdown:

  • Notification letter — After your city hall registration, your number arrives by registered mail as an Individual Number Notification (個人番号通知書), usually a few weeks later. (The old paper notification card, 通知カード, was abolished in May 2020.) It also holds the ID and QR code to apply for the card. Heads-up: this letter is not proof of your number or ID, and it's never reissued, so file it somewhere safe!
  • My Number card application — You can apply for the actual physical IC card right at the city office during your registration, or you can do it online later. Just a heads up, the physical card takes 1-2 months to be ready, and they'll mail you a notification when it's time to pick it up. Patience, my friend! Since 14 June 2026, when you file your address you can also ask for a residence card that doubles as your My Number Card (特定在留カード, tokutei zairyu card). It's optional, and two separate cards work just as well.
  • What it's for — You'll use it for tax filing (like e-Tax), opening bank accounts, accessing online government services, and it's now your health insurance card too (マイナ保険証, maina hokensho). Paper insurance cards stopped being issued in December 2024 and expired on 1 December 2025; if you don't register your card as a health insurance card, your insurer sends you a certificate of eligibility (資格確認書, shikaku kakuninsho) instead. It's also super handy for online visa applications.
  • Keep it safe! — Unlike your driver's license, your My Number is pretty sensitive. It's linked to your financial and tax info, so don't just hand it out casually. Treat it like gold!

Moving Again? Here's the Lowdown

Life happens, and sometimes you move. If you're relocating to a different municipality (meaning a new city or ward), there are two steps involved:

  1. Move-out notification (転出届, tenshutsu todoke) at your current city office — You can do this up to 14 days before or after your move. They'll give you a Certificate of Moving Out (転出証明書, tenshutsu shomeisho) – don't lose it!
  2. Move-in notification (転入届) at your new city office — You absolutely must do this within 14 days of moving into your new place. Bring that Certificate of Moving Out and your trusty Residence Card.

If you're just moving within the same municipality (like changing apartments in the same ward), it's a bit simpler. You only need to file an address change notification (転居届, tenkyo todoke) at your city office within 14 days. Phew, one less trip!

Super Helpful Tips for Your Visit

Want to make your city hall experience as smooth as a freshly paved Japanese road? Keep these tips in mind:

  • Go early in the day — Seriously, offices are often mobbed between 11:00 and 14:00. Aim to be there right when they open (usually 8:30) for much shorter waits.
  • Avoid Mondays and month-ends/beginnings — These are universally the busiest times for any government office, it seems!
  • Check for extended hours — Some larger city offices occasionally have weekend or evening hours. A quick check on their website could save you a weekday off!
  • Ask about English support — Many larger city offices have multilingual staff or translation tablets available. It never hurts to ask, "Eigo wa daijōbu desu ka?" (Is English okay?).
  • One-stop shop — Try to get everything done in one go: registration, health insurance, My Number, and pension. You’ll thank yourself later for not having to make multiple trips.
  • Keep your Residence Card updated — This is crucial! Your registered address must always match where you actually live. Forgetting to update it within 14 days can actually lead to fines. Yikes!

You’ve got this! Facing Japanese bureaucracy can feel like climbing Mount Fuji, but with a little preparation, you'll conquer city hall in no time. Good luck!

Sources