A Japanese employee transferred to Dubai for a year or more is presumed to have no domicile in Japan from the day they leave, and becomes a non-resident for income tax purposes. That presumption is the easy part. The parts that catch people are the exit tax on securities worth 100 million yen or more, the inheritance tax that follows a Japanese passport for ten years, and the word 出国, which in the Income Tax Act means leaving without appointing a tax agent and which pulls your filing deadline forward to before your flight.

Japan and the UAE do have a tax treaty, and unlike the Spanish, Polish or Brazilian versions it does not require Emirati nationality, so a Japanese national in Dubai is not locked out of it on the face of the text. This guide covers when residence ends, the two filing routes and which one you want, what Japan still taxes, the exit tax conditions in full, inheritance tax exposure, the pension position, and the inhabitant tax bill that arrives after you have already gone.

When You Stop Being a Japanese Tax Resident

The National Tax Agency states that a salaried employee transferred to an overseas branch or seconded to an overseas subsidiary for a planned period of one year or more is presumed to be a non-resident under the Income Tax Act, “unless it is clear in advance that the period of stay abroad will be less than one year.” The presumption works from the date of departure, not from a day count.

This is a presumption about domicile (住所), which the NTA defines as the base of your life, determined by objective facts. It is not a 183-day rule, and Japan has no day-count residence test for this purpose. A one-year UAE employment contract and a residence visa are the objective facts that carry the argument.

The practical consequence during the year of departure is that the tax year splits. Income earned during the resident period is taxed on a worldwide basis, and income from the day after departure to 31 December is taxed only if it is Japan-source. Your employer settles the resident-period tax through a year-end adjustment (年末調整) at the final salary payment, calculated in the same way as the ordinary December one.

The directors’ exception that catches senior secondments

The NTA is explicit that salary paid during the non-resident period for overseas work is not taxed in Japan, “except in the case of a director (役員) of a corporation working abroad.” A Japanese company’s director posted to a Gulf office does not get the clean result an ordinary employee gets, because directors’ remuneration paid by a Japanese company is treated as Japan-source regardless of where the work is done. If your title changed to 取締役 before the move, price that in.

出国 Is a Technical Term, and It Moves Your Deadline

In the Income Tax Act, 出国 means ceasing to have both a domicile and a residence in Japan without having filed the notification of a tax agent. Someone who must file a return and who leaves in that state has to file a quasi-final return (準確定申告) before departure, not the following March.

That is the single most expensive misunderstanding in this area, because it converts a comfortable February to March deadline into a pre-flight one. The two routes are set out plainly by the NTA and the difference between them is one form.

Route What you file, and when
Tax agent appointed before departure One return covering all income in the resident period plus Japan-source income in the non-resident period, filed through the tax agent between 16 February and 15 March of the following year
No tax agent (a 出国 in the statutory sense) A quasi-final return for the resident period, filed by the time of departure

The form is the 所得税・消費税の納税管理人の選任・解任届出書, filed with the district director of the tax office for the non-resident’s place of tax payment. The agent can be an individual or a company. After it is filed, correspondence goes to the agent, but the return itself still goes to the tax office for your place of tax payment in Japan.

Not everyone needs to file at all. The routine case is a salaried employee whose only income is employment income, whose year-end adjustment settles everything. Filing becomes compulsory where salary exceeds 20 million yen, or where there is other income of the kind that ordinarily requires a return.

The Exit Tax: Two Conditions, Both Required

The exit tax on unrealized gains (国外転出時課税) was created by the fiscal 2015 tax reform and applies to departures on or after 1 July 2015. It catches a resident who, at the time of departure, holds covered assets worth 100 million yen or more and who has had a domicile or residence in Japan for more than five years within the ten years before the date of departure. Both conditions must be met.

Covered assets are securities such as shares and investment trusts, equity interests in silent partnership (匿名組合) contracts, and unsettled margin transactions, when-issued transactions and derivative transactions. Real estate is not a covered asset, which surprises people who assume the tax is about wealth generally rather than about portfolios specifically.

The five-year condition is why this is not primarily a problem for foreign nationals leaving Japan after a short posting, and very much is one for Japanese nationals who have lived in Japan their whole lives and are moving to Dubai with a share portfolio.

The tax agent changes the valuation date, not just the paperwork

Tax agent notification Valuation date and deadline
Filed before departure Assets treated as sold at their value on the date of departure; return due by the ordinary filing deadline in the following year, and deferral of payment is available against security
Not filed Assets treated as sold at their value three months before the scheduled departure date; return filed and tax paid before departure, with no security given

The NTA pamphlet is blunt that every one of the reduction and deferral measures requires the tax agent notification to be submitted to the competent tax office before departure. Deciding to sort out your Japanese tax affairs after you land in Dubai forfeits them.

The same regime applies to gifts. A person holding 100 million yen or more of covered assets who gives securities to a relative living outside Japan triggers the same filing obligation, which matters for families who move in stages.

What Japan Still Taxes After You Leave

A non-resident is taxed on Japan-source income only. The NTA lists four categories that require a return where the holder has no permanent establishment in Japan: income from the use or holding of assets in Japan that is not taxed at source, gains on the transfer of assets in Japan such as real estate and certain shares, consideration for renting out Japanese real estate, and lump sums under insurance contracts concluded through a Japanese office.

Selling a Japanese property from Dubai

A non-resident selling Japanese land or buildings has 10.21 percent withheld from the gross sale price, not from the gain, and then files to recover the excess. The withholding does not apply where the price is 100 million yen or less and the buyer bought it as a home for themselves or a relative.

Withholding on gross proceeds routinely exceeds the real tax where the property has not appreciated much, so the refund claim is not optional housekeeping, it is how you get your money back. The return is due between 16 February and 15 March of the following year, and a tax agent must be appointed by the time you file.

Selling Japanese shares from Dubai

This is where non-residence pays. A non-resident without a permanent establishment in Japan is taxable on share disposals only in six narrow categories, which include disposals following a buy-up of a company’s shares (買集め) and disposals that amount to a transfer of the business (事業譲渡類似) by a specially related shareholder. Ordinary sales of listed shares by a non-resident fall outside all of them.

That treatment is one reason the exit tax exists at all. Japan takes the unrealized gain on the way out precisely because it will not get the realized gain later.

The Treaty: a Liable-to-Tax Test, and an Open Question

Article 4(1) of the Japan to UAE convention, signed on 2 May 2013, defines a resident of a Contracting State as any person who “under the laws of that Contracting State, is liable to tax therein by reason of his domicile, residence, place of head or main office, place of management or any other criterion of a similar nature.” There is no nationality condition on either side.

That puts Japan in a different family from the treaties that limit UAE residence to UAE nationals, which is the position Spanish and Polish nationals face and which our guide to the nationality clause in the Spanish treaty explains. A Japanese national in Dubai is not excluded by the wording, and the full tie-breaker in Article 4(2) runs from permanent home to center of vital interests, habitual abode and then nationality.

The honest difficulty is the phrase “liable to tax.” The UAE does not levy personal income tax on employment income, so whether an individual is liable to tax there in the treaty sense has never been settled cleanly for this convention. The convention has also been modified by the Multilateral Instrument, which Japan signed on 7 June 2017 and the UAE on 27 June 2018, adding the principal purpose test to the treaty’s benefits.

The practical answer is the same one that works elsewhere: hold a UAE tax residency certificate from the Federal Tax Authority as evidence of your position, and do not rely on the treaty to fix a residence problem that Japanese domestic law would otherwise decide against you. In the ordinary case of a genuine one-year-plus posting, domestic law already makes you a non-resident and the treaty never has to do any work.

Inheritance Tax Follows Your Passport for Ten Years

Someone who inherits while living abroad with no domicile in Japan is normally taxed only on Japan-situs assets. But a person who holds Japanese nationality when they acquire the property and who had a domicile in Japan at any time within the ten years before the decedent’s death is taxed on worldwide assets. Moving to Dubai does not sever this for a decade.

The rule cuts both ways in a family. It applies to the person receiving the assets, so a Japanese national in Dubai who inherits from a parent in Japan is generally within the worldwide charge, and it applies by reference to the decedent’s position too, so a Japanese national who dies in Dubai within ten years of having lived in Japan leaves an estate exposed on its worldwide assets.

Two details that change outcomes. The basic exclusion is 30 million yen plus 6 million yen per statutory heir, which is low by international standards and catches ordinary family homes. The filing and payment deadline is ten months from the day after the death, which is short when assets sit in two countries and a UAE bank needs documents attested before it will release anything.

The NTA also notes that people temporarily outside Japan, for study or an overseas business trip, are treated as still having a domicile in Japan. A short secondment does not start the ten-year clock.

There is no Japan to UAE inheritance tax treaty, and the income tax convention does not cover inheritance tax. For the UAE side of an estate, our guide to inheritance rules for non-Muslims in the UAE covers what happens to assets held here.

Pensions: No Agreement With the UAE

The Ministry of Health, Labour and Welfare’s published status of social security agreements, dated 2 June 2026, lists 24 agreements in force, one signed and not yet in force (Poland, signed April 2026), three under intergovernmental negotiation and one in preliminary consultation. The United Arab Emirates appears in none of those categories.

That matters in two directions. There is no certificate of coverage to exempt a seconded employee from any UAE contribution requirement, though in practice the UAE does not impose pension contributions on foreign employees in the first place, and there is no totalization, so UAE time does not count toward the Japanese contribution record.

The gap it leaves is in the Japanese record. A Japanese national living abroad falls out of compulsory National Pension coverage, and voluntary enrolment (任意加入) exists precisely to let people abroad keep building qualifying periods. Whether that is worth doing depends on how many months you already have and how long you expect to stay away, and it is a decision best made before you leave rather than after a gap has opened. The wider question of replacing a national pension while in the Gulf is covered in our guide to building a pension as a UAE expat.

The Inhabitant Tax Bill That Arrives After You Have Gone

Individual inhabitant tax (住民税) is assessed on whoever had an address in the municipality on 1 January, charged on the previous year’s income. Leave Japan in March and you still owe the full year’s inhabitant tax on last year’s salary, billed to an address you no longer live at.

The timing works in your favor if you can arrange it. Someone who has left before 1 January is not an inhabitant on the assessment date and is not liable for that year’s charge. Someone who leaves on 2 January pays a full year on income earned while they were still in Japan and earning it.

Employers usually handle this by deducting the remaining instalments in a lump from the final salary, which is a large and unwelcome number on the last payslip. The alternative is to appoint a tax agent, which is another reason the tax agent notification is worth filing even where the income tax position is simple.

The Order to Do This In

  • Value your securities, silent partnership interests and open derivative positions before you fix a departure date, and check both exit tax conditions: the 100 million yen threshold and more than five years of domicile or residence in Japan within the previous ten.
  • File the tax agent notification (納税管理人の選任届出書) before you leave. It changes the exit tax valuation date, preserves the deferral options, and moves your income tax deadline from pre-departure to the following March.
  • Give your employer the documents for the year-end adjustment at your final salary payment, including the insurance premium deduction declaration for premiums paid up to the day you become a non-resident.
  • File the moving-out notification at your municipal office, and understand what it does to National Health Insurance and to the 1 January inhabitant tax assessment.
  • Decide on voluntary National Pension enrolment before the gap opens, not after.
  • If you keep Japanese property, appoint the tax agent and plan for 10.21 percent withholding on gross proceeds if you later sell.
  • Apply for a UAE tax residency certificate once you meet the Federal Tax Authority’s conditions, and keep your Emirates ID, tenancy contract and entry and exit record as the objective facts behind the domicile argument.

What We Could Not Verify

Two points are left open rather than asserted. The first is the current treatment of the Report of Foreign Assets (国外財産調書) for someone in this position. The obligation is framed around residents other than non-permanent residents, which would put a genuine non-resident in Dubai outside it, but the wording of the current threshold and the interaction with the separate statement of assets and liabilities could not be confirmed against the NTA’s own page at the time of writing. Confirm it before assuming you have no reporting duty.

The second is the precise Japanese treatment of a UAE tax residency certificate for the “liable to tax” question in Article 4(1). No published Japanese ruling on that point for this convention was located. Treat the certificate as strong evidence rather than as a determination, and take advice if your position depends on the treaty rather than on domestic non-residence.

Frequently Asked Questions

Do Japanese citizens in Dubai pay Japanese income tax?

Not on their UAE salary, once they are non-residents. An employee transferred abroad for a planned period of one year or more is presumed under the Income Tax Act to have no domicile in Japan from departure, and a non-resident is taxed only on Japan-source income. The exception is a company director, whose remuneration from a Japanese company remains taxable.

When does the Japanese exit tax apply?

Only when both conditions are met: covered assets worth 100 million yen or more at departure, and more than five years of domicile or residence in Japan within the ten years before the departure date. Covered assets are securities, silent partnership interests and unsettled margin, when-issued and derivative transactions. It applies to departures on or after 1 July 2015.

What is a 納税管理人 and do I need one?

It is a tax agent in Japan who files returns, receives documents from the tax office and pays tax on a non-resident’s behalf, appointed using the 所得税・消費税の納税管理人の選任・解任届出書. You need one if you will have to file in Japan, and appointing one before departure changes the exit tax valuation date and moves your filing deadline to the following March instead of before your flight.

Can I use the Japan to UAE tax treaty?

The text does not exclude you. Article 4(1) of the 2013 convention uses a liable-to-tax test based on domicile, residence, head office, place of management or a similar criterion, with no nationality condition, and the tie-breaker in Article 4(2) is the full standard one. The open question is whether an individual is “liable to tax” in a state that levies no personal income tax.

Will I still owe Japanese inheritance tax if I live in Dubai?

Very probably, for ten years. A person holding Japanese nationality who acquires inherited property and who had a domicile in Japan at any time within the ten years before the death is taxed on worldwide assets, not just Japan-situs ones. The basic exclusion is 30 million yen plus 6 million yen per statutory heir, and the return is due within ten months of the death.

Is there a Japan to UAE social security agreement?

No. The Ministry of Health, Labour and Welfare’s status list dated 2 June 2026 records 24 agreements in force, one signed, three in negotiation and one in preliminary consultation, and the UAE is in none of those categories. UAE time does not count toward your Japanese pension record.

Do I have to pay Japanese inhabitant tax after I move?

If you had an address in the municipality on 1 January, yes, for that year, charged on the previous year’s income. Employers commonly deduct the remaining instalments in a lump from the final salary. Someone who has already left before 1 January is not liable for that year’s charge.

What happens if I sell my Japanese apartment while living in the UAE?

The gain is taxable in Japan and 10.21 percent is withheld from the gross sale price, with a return between 16 February and 15 March of the following year to recover any excess. No withholding applies where the price is 100 million yen or less and the buyer is purchasing it as a home for themselves or a relative.

Are my Japanese listed shares taxed in Japan after I become a non-resident?

Generally not. A non-resident without a permanent establishment in Japan is taxable on share disposals only in six narrow categories, such as disposals after a buy-up of a company’s shares or disposals amounting to a business transfer by a specially related shareholder. Ordinary listed share sales fall outside them, which is why the exit tax exists.

Official Sources

Information current as of September 2026. Japanese residence turns on objective facts about where your life is based, the exit tax depends on values and holding periods personal to you, and the treaty’s liable-to-tax test is unsettled for a state with no personal income tax. This guide is for informational purposes only; confirm your position with the National Tax Agency, your municipal office or a qualified Japanese tax adviser before relying on any treatment described here.