Why Everything in Japan Starts in April (and What That Means for Your Move)

Quick answer

Hi, I'm Miya, and I help newcomers settle into life in Japan. If one thing surprises people about moving here, it's that the country runs on a single calendar: April is the start line. School years, fiscal years, hiring, transfers and the tax cycle all pivot on it, which is why March feels frantic and April feels like a fresh page. Knowing that in advance won't change the date on your visa, but it changes what you expect — and it lets you choose your arrival window with your eyes open.

The calendar everything hangs on

In Japan the year that matters most begins on 1 April. The school year opens then, and so does the fiscal year for companies, ministries and city halls. New graduates join their employers in one big cohort in April, internal transfers take effect on that date, budgets reset, and a lot of rule changes and new schedules are deliberately timed to land there. New Year's Day still gets the celebration and the greeting cards, but April is when the country actually turns the page.

Once you notice it, you see it all over spring — entrance ceremonies at every school gate, brand-new suits crowding the morning trains, stationery and furniture displays aimed squarely at people starting something. It also explains a lot of small confusion for newcomers. If a form asks about your nendo, that's the April-to-March year, not the calendar one. If a program says it runs for a year, it very often means that year.

Why March is the busiest moving month

If April is the start line, March is the sprint towards it. Companies announce transfers in advance so families can move before the school term opens, and students graduate and empty their dorms. Leases are commonly timed to end with the academic or fiscal year, so an enormous number of households change address inside the same few weeks. Moving crews get booked out well ahead, weekend slots disappear first, and utility and internet appointments stretch further out than usual.

The apartment side feels it just as much. This is the window when the most people are hunting for rooms at once, so the places that look good get taken quickly and you have less space to think it over. If you're viewing in March, go in prepared: documents ready, your non-negotiables decided in advance, and a realistic acceptance that you may have to choose faster than you'd like.

The October intake, and arriving off-cycle

Not everyone can land in spring, and Japan does keep a second door open. Many universities and language schools run an October intake alongside the April one, and some programs also start in January or July. If you arrive off-cycle, autumn is a gentler landing: the moving rush is over, there's more choice in housing, and the counters at city hall are calmer.

The trade-off is that the wider rhythm still points at April. Cohorts starting in October tend to be smaller, club activities and campus events are laid out on the spring calendar, and graduate hiring timelines are built around students finishing in March. None of that is impossible to work around, but it helps to know you'll be half a beat out of step, and to ask your school or employer early how they handle it.

What a mid-year arrival actually changes

Arriving in the middle of the year mostly means joining things already in motion. For children, placement in a local public school runs through the municipal board of education, and a mid-term transfer puts your child into a class that has already formed its groups and covered part of the curriculum. Teachers deal with this constantly and are kind about it, but it's worth giving your family a longer settling-in runway than you would in April.

At work, the April cohort usually gets group training and a set of peers going through the same first week. Joining mid-year often means learning on the job instead — faster and more practical, but without that built-in group to compare notes with. In week one, ask your manager who your go-to person is. On housing, the quieter months are genuinely in your favour: fewer people competing for the same room, and time to look properly.

Choosing your window with your eyes open

So the takeaway isn't "avoid April". Plenty of people should arrive in spring, because that's exactly when their school or employer starts. The point is to choose knowingly. If your date is fixed, budget extra patience for your first two weeks. If you have any flexibility at all, landing a little past the peak — late spring, or autumn — usually means shorter queues and a calmer search for somewhere to live.

And that first-week admin queue is the practical reason to have your connectivity decided before you fly. Registering at the ward office, opening a bank account and sorting out a phone all stack into the same few days, and those counters are at their longest in the March-April rush. Your Japanese mobile line starts once your residence card is in hand on arrival: you apply online with it, and an eSIM-capable phone can connect the same day, often in about fifteen minutes. Read our setup guide for the steps beforehand and confirm current terms before you apply, so the only thing left to do is press go. I'll be right here for that part.