Quick Facts: US Taxes for Americans in Japan
| Topic | Key Detail |
| US Filing Requirement | Required every year for all US citizens and green card holders, regardless of where they live |
| Japanese Tax Residency Trigger | Having a jusho (domicile) or kyosho (abode of 1+ year) in Japan; there is no fixed day-count threshold |
| Non-Permanent Resident Window | First 5 years within a rolling 10-year period; foreign income not remitted to Japan stays untaxed there |
| Japanese Income Tax Rates (2025) | 5%–45% national (7 brackets), plus a 2.1% surtax, plus a flat 10% resident tax |
| Best US Strategy | Foreign Tax Credit (FTC) for most Americans; the FEIE is rarely better once permanent resident status begins |
| FBAR Threshold | Japanese accounts exceeding $10,000 combined at any point during the year |
| FATCA Threshold (abroad, single) | $200,000 at year-end or $300,000 at any point in the year |
| PFIC Exposure | Nearly all Japanese mutual funds, ETFs, NISA holdings, and iDeCo funds are treated as PFICs by the IRS |
| US–Japan Tax Treaty | In force since 1973, updated by a 2013 protocol; a saving clause preserves US taxing rights over citizens |
| Totalization Agreement | In force since October 1, 2005; a 5-year rule generally determines which Social Security system applies |
| Inheritance Tax Exposure | Long-term (Table 2 visa) residents may owe Japanese inheritance tax on worldwide assets, at rates up to 55% |
| Japanese Tax Return Window | Mid-February through mid-March (Kakutei Shinkoku) for the prior calendar year |
| US Filing Deadline (expats) | June 15 automatic extension; October 15 available with Form 4868 |
Tax Residency in Japan
How You Become a Japanese Tax Resident
Japan classifies individuals as non-residents, non-permanent residents, or permanent residents, and the classification, not a simple 183-day count, determines what Japan can tax.
A jusho is your true domicile, the place where your life is actually centered, determined by facts such as where your family lives, where your job is based, and where your primary residence sits.
A kyosho is a temporary place of abode you have kept for a year or more without necessarily being your domicile. Establishing either one makes you a Japanese tax resident for that year.
Within Japanese tax residency, foreign nationals who have accumulated five years or less in Japan within the preceding ten years are Non-Permanent Residents. Once that threshold is crossed, you become a Permanent Resident for tax purposes and Japan taxes your entire worldwide income, regardless of where it is earned or paid.
The Visa You Arrived On Matters
Japan sorts residence statuses into two broad groups, generally called Table 1 and Table 2 visas, and which group you hold shapes both your day-to-day life and, later, your exposure to Japan’s exit tax and inheritance tax rules. Americans in Japan most commonly hold:
Engineer/Specialist in Humanities/International Services — the standard visa for corporate and technical professionals
Instructor or Intra-company Transferee — common for teachers and staff relocated by a US employer
Business Manager visa — for those starting or running a company in Japan
Highly Skilled Professional visa — a points-based status offering faster access to permanent residency
Spouse of a Japanese National, Long-Term Resident, or Permanent Resident (Table 2 statuses), for those with deeper, longer-term ties to Japan
Your visa type does not by itself set your tax residency, but it strongly correlates with it, and Table 2 status carries meaningfully higher exposure to Japan’s inheritance and exit tax regimes, covered later in this guide.
Japan’s My Number (individual number, or Kojin Bango) is required for nearly every financial and tax transaction once you arrive. Obtaining a My Number does not by itself make you a tax resident, but registering your address at a local municipal office generally does.
Japanese Income Tax Rates (2025 Tax Year, Filed in 2026)
Japan’s national income tax, shotokuzei, is progressive across seven brackets. On top of it, nearly every resident pays a flat 10% local resident tax (juminzei), split roughly between the prefecture and municipality, plus a 2.1% surtax calculated on the national tax amount itself.
| Taxable Income (JPY) | National Rate |
| Up to ¥1,950,000 | 5% |
| ¥1,950,000–¥3,300,000 | 10% |
| ¥3,300,000–¥6,950,000 | 20% |
| ¥6,950,000–¥9,000,000 | 23% |
| ¥9,000,000–¥18,000,000 | 33% |
| ¥18,000,000–¥40,000,000 | 40% |
| Over ¥40,000,000 | 45% |
Other Japanese Taxes Americans Should Know
Capital gains on listed securities: Taxed separately from ordinary income at a flat 20.315% (national, surtax, and resident tax combined), regardless of holding period.
Consumption tax: A national value-added tax of 10% on most goods and services, with a reduced 8% rate for food and non-alcoholic beverages.
Property tax (kotei shisanzei): Roughly 1.4% of the assessed value of land and buildings, billed annually by the municipality where the property sits.
Social insurance: Employees enrolled in kosei nenkin (employees’ pension) and kenko hoken (health insurance) generally see close to 15% of gross salary withheld, matched by the employer. The self-employed instead pay a flat kokumin nenkin (national pension) premium, plus separately for national health insurance.
The Non-Permanent Resident Window: Japan’s Five-Year Rule
Unlike some countries, Japan does not offer a special flat-rate tax regime aimed at attracting retirees, remote workers, or highly qualified professionals. Instead, its concession to new arrivals is structural: for a defined window, foreign-source income is only taxed if it reaches Japan.
Who Qualifies as a Non-Permanent Resident
Any foreign national who has held a jusho or kyosho in Japan for five years or less, counted cumulatively within the preceding ten years, qualifies as a Non-Permanent Resident.
NPRs owe Japanese tax on Japan-source income in full, and on foreign-source income only to the extent it is remitted into Japan, whether as cash, a wire transfer, or use of a foreign credit card charged from an overseas account.
This creates genuine planning room. US investment income, rental income from US property, and capital gains on assets held outside Japan generally escape Japanese tax during the NPR period, provided the proceeds stay offshore.
Long-term residents with over ¥100 million in qualifying assets (stocks, bonds, investment trusts) who’ve held a jusho or kyosho in Japan for 5+ of the last 10 years may face Japan’s exit tax. It taxes unrealized gains as if sold the day before departure, at a flat 15.315%, and can catch successful residents off guard.
What Happens After Five Years
Once your cumulative time in Japan within the trailing ten years exceeds five years, you become a Permanent Resident for tax purposes (a Japanese tax classification, distinct from immigration permanent residency) and Japan begins taxing your worldwide income, including foreign investment gains that were never remitted.
The shift usually increases your Japanese tax bill substantially, which in turn increases the Foreign Tax Credit available on your US return.
Coordinating the timing of income recognition, especially large capital gains, around this five-year transition is one of the more valuable planning opportunities available to Americans in Japan.
American in Japan? Get Expert Help Here.
Two tax systems, one five-year rule, endless complexity. We help Americans in Japan navigate it all.
Avoiding Double Taxation: FTC vs. FEIE
Americans living in Japan have two primary tools for preventing the IRS from taxing income Japan has already taxed. Picking the right one has a real effect on your bottom line.
The Foreign Tax Credit (FTC) — Usually the Better Choice
The Foreign Tax Credit (Form 1116) lets you apply Japanese taxes paid against your US tax liability on the same income, dollar for dollar.
Because combined Japanese national, surtax, and resident tax rates frequently exceed comparable US rates, most Americans in Japan end up with credit to spare, and unused credits carry forward for up to ten years.
Example: An employee in Tokyo earning ¥12,000,000 (approximately $80,000) pays roughly ¥3,000,000 in combined Japanese national, surtax, and resident tax. US federal tax on $80,000 would run approximately $11,800. The FTC absorbs the full US liability, leaving a meaningful carry-forward credit for future years.
The Foreign Earned Income Exclusion (FEIE) — Rarely Better in Japan
The FEIE (Form 2555) lets qualifying Americans exclude up to $130,000 (2025) of foreign earned income from US taxation.
In Japan, it is usually the weaker option for two reasons: it lowers your Adjusted Gross Income, which can disqualify you from the refundable Additional Child Tax Credit, and it can block IRA contributions on excluded earnings. The FTC carries neither drawback.
The FEIE can still make sense for lower earners, for the first partial year of an NPR period, or in specific planning scenarios where offshore income is not being taxed by Japan at all. This is an area where a short consultation typically pays for itself.
Not Sure Whether to Use the FTC or the FEIE?
Wrong choices cost thousands. Our CPAs review your income and NPR status to get your strategy right before you file.
The US–Japan Tax Treaty
The United States and Japan have maintained an income tax treaty since 1973 (a convention signed in 1971), most recently modernized by a protocol signed in 2013 and ratified by the US Senate in 2019.
The full text and technical explanations are published by the IRS, and the treaty allocates taxing rights between the two countries while addressing specific income types including pensions, dividends, interest, and royalties.
Several important limits apply.
The Saving Clause: Like nearly all US tax treaties, the US–Japan treaty includes a saving clause allowing the United States to tax its citizens as though the treaty did not exist. For most working Americans in Japan, this means the treaty does not remove your US filing obligation or automatically shield your income from US tax.
Where the Treaty Helps: Treaty positions matter most for pensions and certain government payments, where specific articles can shift or clarify which country holds primary taxing rights. Claiming a treaty-based position requires disclosure on Form 8833.
Totalization Agreement: A separate agreement, in force since October 1, 2005, prevents double Social Security taxation. Employees sent to Japan for less than five years generally continue paying into US Social Security; beyond five years, they generally shift into kosei nenkin or kokumin nenkin instead. Self-employed Americans typically pay into whichever system matches their country of primary residence. Details are available directly from the Social Security Administration.
Japan also maintains a separate estate, inheritance, and gift tax treaty with the United States, signed in 1954, entirely distinct from the income tax treaty above. It is covered later in this guide and is one of only a small number of estate tax treaties the US has with any country.
Tax Deadlines: Japan and the US
Japanese Tax Deadlines
Japan’s individual final tax return, the Kakutei Shinkoku, generally opens in mid-February and is due in mid-March for the prior calendar year.
Unlike a salary-only employee whose taxes are fully withheld and settled through year-end adjustment, Americans with US-source income, freelance earnings, or rental income typically must file this return themselves, since employers only withhold on Japanese salary. Full details are published by the National Tax Agency.
One quirk that catches many expats off guard: the flat 10% resident tax on a given year’s income is not billed until the following year, often arriving as a bill in June, well after you may have changed jobs, moved cities, or even left Japan altogether.
US Tax Deadlines for Expats in Japan
| Date | What It Covers |
| April 15 | Standard filing deadline; any unpaid tax begins accruing interest from this date |
| June 15 | Automatic 2-month extension for Americans living abroad, no form required |
| October 15 | Final extended deadline for taxpayers who filed Form 4868 |
| December 15 | Additional discretionary extension, subject to IRS approval |
Reporting Your Japanese Bank Accounts to the US Government
Opening a bank account is one of the first things Americans do after arriving in Japan, and it is also one of the first things that creates a US reporting obligation.
FBAR (FinCEN Form 114)
If the combined value of all your foreign financial accounts exceeds $10,000 at any point during the calendar year, you must file an FBAR. Combined means every account added together, checking, savings, brokerage, and any other financial account held outside the US.
The threshold is an aggregate across all accounts, not a per-account limit.
The FBAR is filed separately from your tax return, directly with FinCEN rather than the IRS, and electronically. It is due April 15 with an automatic extension to October 15.
Penalties for willful failure to file can reach the greater of $100,000 or 50% of the account balance per violation.
Even non-willful failures carry penalties of up to $10,000 per account per year. These numbers are not hypothetical; the IRS has enforced them aggressively.
FATCA (Form 8938)
FATCA captures a broader set of foreign assets than the FBAR, including foreign pensions, equity in Japanese companies, and certain insurance products with an investment component. Thresholds for Americans living abroad are higher than for US residents:
Single filers: Over $200,000 at year-end, or over $300,000 at any point during the year
Married filing jointly: Over $400,000 at year-end, or over $600,000 at any point
Form 8938 is filed with your annual Form 1040, not separately. FBAR and FATCA reporting overlap in places but capture different things, and both may be required.
Japanese Investments and the PFIC Problem
This is one of the most expensive traps for Americans living in Japan who do not know what to watch for.
Japanese investment trusts (toshin), the pooled funds a bank teller or brokerage app will suggest as the natural next step after opening an account, are almost universally classified as Passive Foreign Investment Companies (PFICs) under US tax law.
The IRS treats PFICs harshly. Income and gains are taxed at the highest ordinary income rates, with interest charges layered on top for gains attributed to earlier years.
Each PFIC must be reported annually on Form 8621, even in years you have not sold anything.
Missing these filings, or not realizing they are required at all, can generate penalties and tax bills large enough to erase the underlying investment gain.
NISA and iDeCo: Japan’s Best Tax Breaks Are the IRS’s Biggest Trap
NISA and iDeCo are the two accounts every Japanese bank, employer HR department, and financial advice column will point you toward, and for Japanese taxpayers they are genuinely excellent. For US citizens, both carry a hidden cost.
Funds held inside a NISA account are still Japanese-domiciled investment trusts, and the IRS does not recognize Japan’s tax exemption on them. Every gain and dividend inside a NISA account remains fully taxable, and PFIC-reportable, on your US return.
iDeCo carries an added layer of uncertainty. Contributions are tax-deductible in Japan but not on your US return, and whether the treaty’s pension article protects iDeCo from current US taxation of its internal growth is genuinely unsettled among cross-border tax professionals. Treating it as fully protected without a documented position is a real risk.
If you hold Japanese investment trusts, NISA, or iDeCo, don’t sell without talking to a specialist first. PFIC rules apply to sales too, and an uncoordinated sale can cost more than just holding. A mark-to-market or QEF election may limit the damage.
| Investment Type | US Tax Risk |
| Japanese investment trusts (toshin) recommended by any Japanese bank or brokerage | PFIC — punitive ordinary income rates on gains; Form 8621 required every year, even without a sale |
| NISA-held funds, marketed as Japan's tax-free investment account | PFIC — the fund inside the account is still a PFIC to the IRS; Japan's exemption is not recognized in the US |
| iDeCo, a tax-deductible individual retirement savings plan | PFIC exposure on internal fund growth; unsettled treaty question on whether the account itself is a protected pension |
| Japan-domiciled ETFs tracking Japanese or global indexes | PFIC — domicile, not the index tracked, determines the classification |
Holding NISA or iDeCo? Let Us Help.
A single trust can trigger PFIC penalties that erase your gains. We catch the exposure across NISA, iDeCo, and brokerage accounts first.
Japanese Pensions and Their US Tax Treatment
Kokumin Nenkin and Kosei Nenkin
Japan’s public pension system runs on two tracks. Employees are enrolled in kosei nenkin (the employees’ pension), with contributions split roughly evenly between employer and employee. The self-employed, students, and others instead pay a flat monthly kokumin nenkin (national pension) premium directly.
Neither contribution is deductible on your US tax return. When benefits are eventually received, they are generally taxable as pension income for US purposes, subject to any applicable treaty position.
Social Security Under the Totalization Agreement
US Social Security benefits received while living in Japan are generally taxable under Japanese rules as pension income. The totalization agreement governs which country you contribute to during your working years; it does not exempt benefits, once received, from Japanese tax.
If you are receiving US Social Security while resident in Japan, expect it to factor into your Japanese tax return, with the applicable rate depending on your total income level.
iDeCo: A Retirement Account With No Clear US Answer
Unlike an employer-sponsored kosei nenkin plan, iDeCo is individually established, which is part of why its treaty status remains debated. Some practitioners treat it as pension-like under Article 17 of the treaty; others argue an individually opened account does not qualify the same way.
Until clearer guidance exists, US citizens contributing to iDeCo should document their position carefully and expect PFIC reporting on the underlying funds.
Retiring in Japan? Your US Taxes Need a Plan Too.
Social Security, kosei nenkin, iDeCo, and NISA interact in ways that surprise retirees. We help Americans retiring to Japan get it right from year one.
Business Ownership and Self-Employment in Japan
Kojin Jigyo: Freelancing and Sole Proprietorship
Many Americans in Japan work as freelancers, teachers, consultants, or independent contractors under a kojin jigyo, Japan’s sole proprietorship structure.
It requires no minimum capital and no separate legal entity; you simply notify your local tax office with a kaigyo todoke (opening notification) and report business income on your own Japanese return.
Since October 2023, Japan’s qualified invoice system (tekikaku seikyusho) has reshaped freelance work: registering for it makes you a consumption tax filer, generally required once taxable sales exceed ¥10 million in a prior base period, but many freelancers now register voluntarily because Japanese clients increasingly require a registered invoice to claim their own tax credits.
Regardless of Japanese registration status, all kojin jigyo income must be reported on your US return as self-employment income, and US self-employment tax may apply unless the totalization agreement assigns your coverage to Japan’s system instead.
KK and GK: Incorporating in Japan
Americans who grow a business beyond sole proprietorship typically incorporate as a Kabushiki Kaisha (KK), Japan’s standard stock company, or a Godo Kaisha (GK), a simpler and less costly limited liability structure introduced in 2006.
JETRO, Japan’s official trade and investment promotion organization, publishes a step-by-step comparison of both structures for foreign founders.
If you own 10% or more of either a KK or a GK, you are required to file Form 5471 annually with the IRS. The penalty for failing to file is $10,000 per form per year, even if the company earned nothing and you owe zero US tax.
If your Japanese company is a profitable service business, the IRS may also require you to pay US tax on the company’s retained earnings each year under the GILTI (Global Intangible Low-Taxed Income) rules, even without ever taking a distribution. A KK or GK does not shield its US-citizen owner from US tax the way a domestic US LLC might.
Running a Business in Japan as an American?
Form 5471 penalties and GILTI exposure can apply even without a distribution. We help American business owners and freelancers in Japan stay compliant.
Inheritance and Gift Tax: A Risk Many Expats Do Not See Coming
Japan holds one of the highest inheritance tax rates in the world, reaching 55% at the top bracket, and it is a tax most Americans planning a move to Japan never think to research.
Unlike the US estate tax, which taxes the estate itself before assets pass to heirs, Japan taxes each heir individually on the value they personally receive.
A basic deduction shields smaller inheritances: 30,000,000 yen plus 6,000,000 yen for each statutory heir. A spouse and two children, for example, would see the first 48,000,000 yen pass free of tax.
Who Actually Owes It
Liability depends on the residency status and visa history of both the heir and the person who died, not simply where the assets happen to sit.
Table 1 visa holders (most standard work visas) who have lived in Japan ten years or less within the past fifteen years are treated as “temporary foreigners,” generally taxed only on Japan-situated assets.
Table 2 visa holders, including permanent residents, spouses of Japanese nationals, and long-term residents, are taxed on worldwide inherited assets, regardless of how long they have actually lived in Japan.
Japanese real estate, Japanese bank accounts, and shares in Japanese companies are always subject to Japanese inheritance tax, no matter the nationality or residency of either party.
In practice, this means a Table 2 visa holder in Japan who inherits a house or brokerage account back in the United States can owe Japanese inheritance tax on that US-based inheritance, on top of anything owed to the IRS.
How the US–Japan Estate Tax Treaty Helps
Japan is one of a small number of countries with a dedicated estate, inheritance, and gift tax treaty with the United States, separate from the income tax treaty and dating back decades.
It generally allows Japanese inheritance tax paid to reduce, dollar for dollar, any US estate tax that would otherwise apply on the same transfer.
Because the current US estate tax exemption is very high, most American families in Japan will never owe US estate tax at all. The bigger practical risk is almost always the Japanese side of the equation, given how aggressively Japan’s rates climb and how far its worldwide-asset rule can reach for long-term residents.
Expecting an Inheritance While Living in Japan?
Japan’s inheritance tax can reach assets you thought were US-only. We help residents plan ahead of the 10-month filing deadline.
State Taxes: The Issue Americans Often Miss
Moving to Japan does not automatically end your US state tax obligations. Several states, including California, New York, and Virginia, apply aggressive residency rules and may keep taxing your income after you move abroad if you retain meaningful ties: a bank account, a driver’s license, a storage unit, or family property.
Before leaving the US for Japan, take concrete steps to sever your domicile in your home state. The exact steps vary by state, but the earlier they are taken, the cleaner the break.
Behind on Your US Taxes? The IRS Streamlined Program Exists for This
If you have been living in Japan without filing US tax returns, you are not alone, and there is a legal, penalty-free path back into compliance.
The IRS Streamlined Foreign Offshore Procedures allow Americans living abroad who are behind on their US taxes to:
File three years of delinquent tax returns
File six years of delinquent FBARs
Pay any outstanding tax owed, plus a small interest charge
Have all penalties waived, provided the failure was non-willful
Non-willful means you were not intentionally hiding income from the IRS. Many Americans who moved abroad simply did not realize they had to keep filing. That is exactly who this program was designed for.
The critical deadline is not a calendar date; it is the moment the IRS contacts you first. Once an examination or inquiry begins, the Streamlined program closes permanently for that taxpayer.
If you are behind on filing and have not yet heard from the IRS, the window is open right now.
Universal Tax Professionals has a 100% success rate in Streamlined Filing Procedures. We have guided Americans across Asia, including many in Japan, through this process from first contact to final confirmation.
Behind on Filing? We've Done This Before
Our team has guided Americans living in Japan through the IRS Streamlined Foreign Offshore Procedures from start to finish, with every penalty waived.
Why Americans in Japan Trust Universal Tax Professionals
US expat tax is a specialty. Most accountants, even skilled ones, do not know the US–Japan treaty, have never filed a Form 8621 for a NISA account, and do not know what a Streamlined submission actually requires.
We do.
Every engagement is handled by a licensed CPA or Enrolled Agent who works with American expats exclusively, year-round, not just during tax season.
What UTP Does That Others Don’t
We get you fully compliant, not just partially filed. Every return we prepare includes FBAR coordination, treaty position review, and FATCA assessment as standard. Nothing gets missed because it fell outside the base fee.
We have a 100% success rate on IRS Streamlined submissions. For Americans who have missed years of US filings, we have guided every client through the Streamlined Foreign Offshore Procedures with all penalties waived. Not most, all.
We stop problems before they start. We work with Americans planning their move to Japan, not only those already in trouble. NPR timing, PFIC-free investment structuring, and business entity choice get addressed before the first Japanese tax year begins.
We charge flat fees, with no surprises. You know exactly what you are paying before we start. No hourly billing, no add-on charges for forms your return actually required.
We have handled every situation an American in Japan faces: new arrivals in Tokyo, retirees in Fukuoka, tech workers navigating the five-year NPR window, business owners with a KK or GK, long-term residents facing Japanese inheritance tax for the first time, and people who have lived in Japan for years without filing a single US return.
What Americans Abroad Are Saying About Universal Tax Professionals
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