Furusato Nozei and Leaving Japan: The January 1 Rule Both Ways
In short
  • One date governs all of this. Residence tax for a fiscal year is charged by the municipality where you had an address on January 1 of that year, a rule Kobe City and Tondabayashi City both publish. Everything below follows from that single sentence.
  • Leaving on December 31 and leaving on January 2 produce opposite outcomes, and neither one is simply better. If you are gone before January 1 the following fiscal year's residence tax is not charged to you, which also means there is no residence tax left for a furusato nozei deduction to reduce. If you are still here on January 1 the whole fiscal year's tax is yours, and so is the deduction.
  • The one-stop exception is assessed against where you live on January 1 of the year after you donated. Nishitokyo City lists it as a disqualifying condition when that address differs from what the application form said. A year-end move or departure can quietly void an application you already sent.
  • If you leave with tax outstanding you need a tax manager, and the filings go to two different places: the municipality for residence tax, the tax office for income tax, as the National Tax Agency sets out. Chuo City states that without the notification, documents are served by public notice and delinquency charges arise. Echizen City states the manager does not have to be a relative and can be an employer or a friend.
  • Donations paid before you go are not lost. The National Tax Agency's completion example for the return filed on departure treats donations paid up to the point of departure as eligible for the income deduction. That recovers the income tax portion only, not the residence tax portion.

Guides to furusato nozei written for Japanese readers do not contain this article, and there is a straightforward reason for that. They are written for people who will still be in Japan next June. The scheme assumes an unbroken residence across a January 1 boundary, and when that assumption fails it does not fail gently. It produces outcomes that are the exact reverse of what the reader expected, from a date change of forty-eight hours.

If you are on a fixed-term assignment, finishing a course, or simply weighing up whether to renew, this is the part of the scheme that decides whether donating is sensible or is just giving money away. It is also, for what it is worth, the part where the honest advice is sometimes "do not do this". You will notice there is nothing to click on this page. That is deliberate. A page that tells you that you might lose your money should not also be selling you something.

The general picture of how the scheme works, and who it works for, is in the main article on furusato nozei for foreign residents. This one deals only with departure.

The January 1 rule

Individual residence tax is not charged month by month as you live somewhere. It is charged once a year, by one municipality, on the basis of a snapshot.

Kobe City and Tondabayashi City both state the rule: residence tax is levied by the municipality where you were living on January 1 of that year. Echizen City states the other half, which is the calculation basis: the tax is worked out on your income from January 1 to December 31 of the preceding year. And Echizen City is explicit that the rule operates regardless of nationality, applying to an individual who has an address in the municipality as of January 1.

Two consequences follow immediately, and both are counter-intuitive.

The first is that residence tax is always looking backwards. The bill that arrives in June concerns money you earned in a year that has already ended. If you stop working in Japan, the tax does not stop with the salary; it follows a year behind.

The second is that the January 1 snapshot is binary. There is no apportionment for part of a year. Either you had an address in that municipality on that morning or you did not, and the answer determines a full fiscal year of tax.

December 31 and January 2 give opposite answers

Here is the comparison stated in full, because writing only one half of it produces a dangerously misleading article.

You complete your departure by December 31 You are still resident in Japan on January 1
Residence tax for the following fiscal year Not charged to you. You had no address in the municipality on the January 1 that determines it. Charged to you in full for that fiscal year, even if you leave in February. The obligation attaches on the January 1 date and is not reduced by leaving afterwards.
Effect on a furusato nozei donation made during that year The residence tax portion of the deduction has nothing to attach to. The tax it was meant to reduce is not being levied. The residence tax portion has a bill to reduce, because that bill exists and is yours.
What you should be arranging Whether an income tax route still recovers part of what you gave, using the return filed on departure. A tax manager, and a decision about which claiming route survives your change of address.

People who encounter the first column on its own tend to read it as a discovery: leave in December and skip a year of tax. It is true that the tax is not charged. It is also true that this removes the receptacle for anything you donated that year, and it does nothing about the residence tax for the current fiscal year, which was fixed by the previous January 1 and is still owed. Arranging your departure date around the residence tax calendar is a decision with two sides, and anyone presenting it as a one-sided saving has not finished the sentence.

The reverse mistake is equally common and more expensive. Being in Japan on January 1 and leaving shortly after does not reduce the coming fiscal year's residence tax at all. That whole year's tax is charged to you on the basis of the previous year's income, and it becomes payable in instalments through a year in which you are living somewhere else. Departures in January and February are the ones that generate the largest unexpected bills.

The trap: your one-stop application can be voided by your own move

This is the mechanism that catches the largest number of people, and it is almost never mentioned in English.

The one-stop exception lets a salaried employee who does not otherwise file a tax return, and who donated to no more than five municipalities, send a short form to each recipient municipality instead of filing. The form must arrive by January 10 of the year following the donation. It looks like the simpler of the two routes and for most residents it is.

But it is assessed against a date in the future. Nishitokyo City lists, among the conditions under which the exception does not apply, the case where the applicant's address as of January 1 of the year following the donation differs from the content of the special exception application form.

Read that against a normal year-end. You donate in November and post your forms. In December you move to another ward, or you finish your contract and fly home. On January 1 your address is not the address on the form you sent. The forms were correctly completed, arrived on time, and no longer do anything.

There is a second reason this route is a poor fit for anyone leaving. The Ministry of Internal Affairs and Communications states that under the one-stop exception no deduction is taken from income tax at all, and the equivalent amount is deducted from residence tax instead. So the exception concentrates the entire benefit on the residence tax side, which is exactly the side that a departure puts at risk. If you are going, the route that keeps an income tax deduction in play is the one worth understanding, and the two are compared in the article on the one-stop exception and the tax return.

If your address on the coming January 1 is going to be different from the one you wrote on a one-stop form, do not assume the deduction will find you. It is not an administrative detail that sorts itself out. Nishitokyo City publishes it as a condition that removes the exception entirely, and a removed exception produces no deduction from anything.

Your moving-out notification is part of this

The January 1 snapshot is taken from the resident register, which means the paperwork you file when you leave is what makes the date real. Leaving the country without filing a moving-out notification does not quietly cancel your registration; the register reflects what has been notified to it.

So the departure notification and the tax question are the same question viewed from two counters. The procedure itself, the deadlines, and what happens at the municipal office are covered in the article on the moving-out and moving-in notifications. If you are moving within Japan rather than leaving, the equivalent point is that the address on your one-stop forms has to keep pace with you, and the residence card side of an address change is dealt with in the article on changing your address on a residence card.

The sequencing that goes wrong most often looks like this: donate in early December, move house in mid-December, file the address change at the new municipality, and never think about the forms again. Every individual step was done correctly. The outcome is still a set of applications assessed against an address you no longer have.

The tax manager

If you leave Japan with tax still to settle, somebody in Japan has to be able to receive documents and handle payments for you. That person is a tax manager, and the notification is not optional in any practical sense.

What happens if you do not appoint one

Chuo City states the consequence directly: where no tax manager notification has been filed, the tax documents are served by public notice, and delinquency charges are incurred. Service by public notice means the municipality is treated as having delivered the notice whether or not it ever reached you. The clock starts. You are not told. The charges accumulate against an address you have left.

This is the single most avoidable financial harm in the whole departure process, and it is avoided by filing one form before you go.

Who can be your tax manager

A common assumption is that this has to be a family member, which for most foreign residents would be an immediate problem. It does not. Echizen City states that the tax manager need not be a relative and may be, for example, an employer or a friend, provided they have an address in Japan.

In practice the sensible choice is somebody with a stable address who will still be reachable a year from now and who understands that they may receive official post on your behalf. Ask them properly, and tell them roughly what to expect and when.

Two taxes, two destinations

Here is the detail that produces half-completed departures. The notification is not filed once.

For individual residence tax, the tax manager notification goes to the municipality. For income tax, the National Tax Agency's guidance on the subject sets out that the tax agent notification is submitted to the tax office. They are separate authorities with separate forms, and filing with one does not inform the other.

People who have carefully sorted out the tax office side are frequently surprised by a municipal notice months later, and the reverse happens just as often. If you have any liability on both sides, and a departing salaried employee generally does, assume two filings until you have confirmed otherwise.

Donations you already made are not necessarily lost

Now the piece of good news, stated with its limitation attached, because the limitation is what makes it useful.

When you leave Japan part-way through a year, there is a return to be filed covering the period up to your departure. The National Tax Agency publishes a completion example for it, and that example treats donations paid during the period up to departure as eligible for the donation deduction as an income deduction. So money you gave earlier in the year, before you knew you would be leaving or after you did, is not automatically written off.

What it recovers is the income tax portion. Only the income tax portion.

The residence tax portions, the basic 10 per cent and the special portion, work by reducing a residence tax income levy. If the following fiscal year's residence tax is not being charged to you because you were gone before January 1, there is no levy to reduce and those portions do not materialise from anywhere else. Anyone telling you that the departure return brings back the residence tax part as well is describing something that does not exist.

There is one thing we are not going to tell you, because no official source states it: how the departure return interacts with a one-stop application you have already sent. The two rules sit in different bodies of guidance and we could not find a source that addresses the combination. If you have already posted one-stop forms and you are now leaving, that is a question for the tax office and the recipient municipalities, and it is worth asking before you leave rather than after.

Paperwork you cannot chase from overseas

A departure turns every document into a logistics problem, and two of them matter here.

The first is the receipt for each donation, issued by the recipient municipality. You need it for a return, and nobody will commit to a date for it. Furunavi states plainly that because the document is issued by the municipality, it cannot answer questions about when it will arrive. If your Japanese address is about to stop being yours, a receipt posted to it is a receipt you may never see.

The second is the certificate for the donation deduction, which is available for download from a portal account from January 10 of the year following the donation. Furunavi generates it automatically, offers no postal version, and it covers only donations made while logged in. Two practical implications follow: donate logged in rather than as a guest, and keep your account credentials and your access to the registered email address after you leave, because January 10 will arrive when you are no longer here.

Keep everything electronically as you go. A scan or a photograph of each receipt, taken on the day it arrives, costs nothing and removes an entire category of problem.

So should you donate at all this year?

A short decision path, with the caveat that the exact amount is never knowable in advance. The published tables of suggested maximum donations are described by the ministry and by municipalities such as Kobe as a guideline, not as a calculated figure for you, and the general treatment of that is in the article on the donation limit.

If you are leaving before January 1: the residence tax side is closed to you for the following fiscal year. What remains is the income tax deduction through the return you file on departure. That is a real benefit but it is a fraction of the usual one, and 2,000 yen of the donation is not returned in any case. Donating a large amount on the assumption of a full deduction would be a mistake.

If you are in Japan on January 1 and leaving later in the year: your position is better than most people expect. The following fiscal year's residence tax is charged to you, so the deduction has a bill to reduce. What you need is a tax manager, and a claiming route that is not voided by your change of address.

If your departure date is genuinely undecided: the cautious approach is to keep the amount modest and to prefer the route that keeps an income tax deduction available, rather than the one that puts everything on a residence tax bill that may never be issued to you.

And if you are staying, none of this applies and you can use the scheme in the ordinary way.

FAQ

I am leaving Japan in December. Does that mean no residence tax next year?

If your departure is completed before January 1, the following fiscal year's residence tax is not charged to you, because the municipality that levies it is the one where you had an address on that date. But two things come with that. The residence tax for the current fiscal year was fixed by the previous January 1 and is still owed, so there is something to settle before you go. And any furusato nozei donation you made during the year loses the residence tax half of its deduction, because the tax it was meant to reduce is not being levied. It is not a saving on its own; it is a trade.

I am leaving in February. Do I still owe the whole year?

Yes. Residence tax for a fiscal year is charged by the municipality where you were living on January 1 of that year, and there is no apportionment for leaving afterwards. The tax is calculated on the previous calendar year's income and becomes payable across a year in which you are elsewhere. This is the departure timing that produces the largest unexpected bills, and it is also the one where appointing a tax manager matters most.

I already sent my one-stop forms and then moved. Are they still valid?

Possibly not. Nishitokyo City lists among the conditions where the exception does not apply the case where the applicant's address as of January 1 of the year following the donation differs from the content of the application form. A December move or departure can put you in exactly that position with forms that were otherwise correct and on time. Contact the recipient municipalities rather than assuming it resolves itself, and treat the tax return route as the fallback.

Does the one-stop exception work if I have left Japan?

Do not rely on it. Two things work against it. It is judged against your address on January 1 of the year after the donation, which will not match the form if you have gone. And the Ministry of Internal Affairs and Communications states that under the exception no deduction is made from income tax, with the whole amount moved to residence tax instead, which is the side a departure removes. Both features point the same way for someone leaving.

What is a tax manager and do I need one?

It is a person in Japan who receives your tax documents and handles payment after you leave. Chuo City states that without the notification, documents are served by public notice and delinquency charges are incurred, which means the deadlines run while you hear nothing. Echizen City states the manager does not have to be a relative and can be an employer or a friend. If you leave with anything outstanding, appoint one.

Where do I file the tax manager notification?

In two places, and this is the step most often half-completed. The notification for individual residence tax goes to your municipality. The notification for income tax goes to the tax office, as the National Tax Agency's guidance sets out. They are different authorities with different forms, and filing one does not register the other.

Can I claim my donations when I file on departure?

The income tax part, yes. The National Tax Agency's completion example for the return filed at departure treats donations paid up to the point of departure as eligible for the donation deduction as an income deduction. What it does not do is produce the residence tax portions, which work by reducing a residence tax income levy. If no such levy is being charged to you, those portions do not arise. The 2,000 yen threshold applies either way.

My receipt has not arrived and I fly next week. What now?

There is no published delivery timescale to appeal to. Furunavi states that because the receipt is issued by the municipality, it cannot answer questions about when it will arrive. Practical steps: make sure post reaching your old address can still be collected by someone, keep your portal account accessible from overseas, and note that the certificate for the donation deduction can be downloaded from the account page from January 10 of the following year, with no postal version and only for donations made while logged in.

Should I just avoid furusato nozei in my last year?

If you are leaving before January 1, that is a defensible decision. The residence tax half of the deduction is gone, 2,000 yen is not returned regardless, and what remains is an income tax deduction claimed through a departure return you have to file properly. If you are still resident on January 1 and leaving later, the calculation is much more favourable, because the fiscal year's residence tax is charged to you and the deduction has somewhere to go. The date, not the intention, decides it.

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