Moving to Japan with Your Family: Setting Everyone Up
Updated: 2026-08-23
Quick answer
Hi, I'm Miya. Moving to Japan alone is a checklist; moving with a partner and kids is the same checklist multiplied, then tangled together. Everyone who stays mid- to long-term gets their own residence card, each child needs a school or childcare place, and — the part people forget — each family member usually needs their own Japanese phone number for apps and verification. The trick is to stop treating it as one big move and start treating it as several small ones running in parallel.
So before anything else, make a simple grid: one row per person, columns for residence card, address registration, health insurance, school or childcare, and phone number. It looks fussy, but it turns a scary blur into a set of small, tickable tasks — and it stops one person's paperwork quietly blocking everyone else's.
One residence card per person
When your family lands as mid- to long-term residents, immigration issues a residence card to each of you individually — including children — using the documents you prepared before the trip. There is no single 'family card'; every person is their own case, so keep each set of papers (passport, Certificate of Eligibility, proof of purpose) grouped by name rather than in one big pile.
Then, at your local ward or city office, you register the whole household's address together, and this is also where family-scale admin begins: enrolling everyone in National Health Insurance, and for many families registering as a household unit. Doing all of this in one visit, with everyone's cards in hand, saves you repeating the trip — bring the kids' cards too, not just the adults'.
Schools, childcare and the apps behind them
Once your address is registered, the ward office is also your route into schooling. For public elementary and junior high, the local education board points you to your assigned school; for daycare (hoikuen) or kindergarten (yochien), you apply through the city, and popular places can have waiting lists, so start the conversation early rather than waiting until you're settled.
What surprises many parents is how much runs through apps and paper notes afterwards. Schools and nurseries often use a messaging or attendance app for absences, lunch, events and daily reports, and these frequently expect a Japanese phone number to register and verify. Set up the parent who handles pickups and school contact first, so you're not locked out of the app on day one.
A number for each family member
It's tempting to give the whole family one number and share it, but in practice that gets awkward fast. So many services — messaging apps, delivery, bank and payment apps, point cards, even some school systems — verify identity by sending a code to a phone number, and they assume one number per person. Two people sharing a single number means one of them keeps getting locked out.
For adults, a personal number each is close to essential. For children it depends on age: younger kids may not need their own line yet, but school-age children who carry a phone for safety and contact usually benefit from one. A practical order is partners first, then any child old enough to need reaching during the day — you can always add a line later as they grow.
Shared calendars and a family command center
With more people comes more moving parts: school events, vaccination appointments, garbage-sorting days, rubbish that only goes out on certain mornings, and the steady drip of forms that come home in a child's bag. A shared family calendar that every adult can see turns this from a memory test into a glance, and it's worth agreeing early on who owns what.
Keep a small shared note, too, with the essentials: each person's residence card number, the household address in Japanese to copy-paste into forms, the family clinic, and emergency contacts. Living across a language you're still learning, the family that writes things down once and shares them beats the family that re-explains everything five times.
Getting the whole family connected
One last thing from me, Miya. You can't contract Japanese SIMs before you land, because each number is tied to a residence card your family only receives on arrival. So keep connectivity near the top of your first-week list — right alongside the ward office visit — because so much of the family setup above quietly depends on everyone having their own number.
When you're ready, Rakuten Mobile can be applied for online with just a residence card, and an eSIM can be issued the same day — usually in about five to ten minutes, with no store visit — which is a real relief when you're juggling kids and boxes. You can set up each family member's line the same way, one at a time, so everyone is reachable and every app that asks for a number just works. Land, get the cards, then get the whole family connected.
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