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 2004 (replacing the 1971 convention), updated by a 2013 protocol that took effect in 2019; 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
Japan classifies people by status, not a 183-day count. Having a jusho (the place your life is centered) or a kyosho (a place kept for a year or more) makes you a Japanese tax resident for that year.
| Status | What Japan Taxes | Notes |
| Non-resident | Japan-source income only | Generally 20.42% flat withholding on employment income, no deductions |
| Non-Permanent Resident | Japan-source income plus foreign income remitted to Japan | Five years or less within the preceding ten |
| Permanent Resident (tax term) | Worldwide income | Once you pass the 5-year mark; distinct from immigration status |
The Visa You Arrived On Matters
| Group | Common Visas | Exposure |
| Table 1 | Engineer/Specialist, Instructor, Intra-company Transferee, Business Manager, Highly Skilled Professional | Lower inheritance and exit tax exposure |
| Table 2 | Permanent resident, long-term resident, spouse of a Japanese national | Higher inheritance and exit tax exposure |
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
| Tax | Applies To | Typical Rate |
| Capital gains | Listed securities | Flat 20.315% (national, surtax and resident tax) |
| Consumption tax | Most goods and services | 10% (8% on food and non-alcoholic drinks) |
| Property tax (kotei shisanzei) | Land and buildings | About 1.4% of assessed value, billed yearly |
| Social insurance | Employees (kosei nenkin and kenko hoken) | Roughly 15% of gross salary, matched by the employer |
American in Japan? Get Expert Help Here.
Two tax systems, one five-year rule, endless complexity. We help Americans in Japan navigate it all.
The Non-Permanent Resident Window: Japan’s Five-Year Rule
Japan has no flat-rate regime for newcomers. Its concession is structural: for a limited time, foreign income is taxed only if it reaches Japan.
| Period | What Japan Taxes | Notes |
| Years 1–5 (NPR) | Japan-source income plus remitted foreign income (cash, wire or foreign credit card use) | US investment income, rent and offshore gains can stay untaxed if proceeds stay offshore |
| After 5 years | Worldwide income, even if never remitted | More Japanese tax also means more Foreign Tax Credit; time large gains around the switch |
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.
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.
| Tool | Form | Works Best For |
| Foreign Tax Credit (FTC) | Form 1116 | Most Americans in Japan. Credits Japanese tax dollar for dollar; excess carries forward up to 10 years |
| Foreign Earned Income Exclusion (FEIE) | Form 2555 | Lower earners or a partial first year. Excludes up to $130,000 (2025) or $132,900 (2026), but lowers AGI and can cost the Additional Child Tax Credit and IRA contributions |
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 income tax treaty has been in force since 2004 (updated by a 2013 protocol effective 2019). Its saving clause lets the US tax its citizens as if the treaty did not exist, so it does not remove your filing duty.
Treaty positions need Form 8833. Treaty documents (IRS)
| Totalization Situation | What Usually Applies |
| Sent to Japan for under 5 years | Continue paying into US Social Security |
| Beyond 5 years | Generally Japan’s system (kosei nenkin or kokumin nenkin) |
| Self-employed | The system of your country of primary residence |
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
| Time of Year | What Happens |
| Mid-February to mid-March | Kakutei Shinkoku (final return) for the prior year; needed with US-source, freelance or rental income. NTA guidance |
| June (following year) | Resident tax is billed a year later, even if you moved or left Japan |
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.
| Filing | Trigger | Where It’s Filed |
| FBAR (FinCEN Form 114) | Over $10,000 combined across all foreign accounts at any point in the year | Electronically with FinCEN, due April 15 (auto-extended to October 15) |
| FATCA (Form 8938) | Single: over $200,000 at year-end or $300,000 any time. Joint: $400,000 or $600,000 | With your Form 1040 |
Japanese Investments and the PFIC Problem
Japanese investment trusts (toshin) are almost always Passive Foreign Investment Companies (PFICs). The IRS taxes them at the highest ordinary rates with interest charges, and each one needs Form 8621 every year, even with no sale.
| Investment | US Reporting | Notes |
| Japanese investment trusts and ETFs | Form 8621 every year | Domicile, not the index tracked, decides PFIC status |
| NISA | Form 8621 | Japan’s tax exemption is not recognized by the US |
| iDeCo | Form 8621 plus a documented treaty position | Contributions not US-deductible; treaty protection unsettled |
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.
Japanese Pensions and Their US Tax Treatment
Japan’s public pension runs on two tracks: kosei nenkin for employees and kokumin nenkin for everyone else. Neither lines up neatly with a US retirement account.
| Account or Benefit | US Treatment |
| Kosei nenkin and kokumin nenkin | Contributions not deductible; benefits generally taxable as pension income, subject to treaty position |
| US Social Security received in Japan | Up to 85% taxable in the US; also taxable in Japan, with the FTC usually offsetting the Japanese tax |
| iDeCo | PFIC reporting on underlying funds; treaty status is debated, so document your position |
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
Your business structure in Japan affects what the IRS expects afterward. It is easier to sort out the US treatment before you incorporate than after.
| Structure | US Reporting | Notes |
| Kojin jigyo (freelance or sole proprietor) | Schedule C and SE | Totalization Agreement decides which social security applies. Qualified invoice registration is mandatory above ¥10 million in sales |
| KK or GK (Japanese company) | Form 5471 (10% or more ownership) | $10,000 penalty per form per year, even with zero profit |
Inheritance and Gift Tax: A Risk Many Expats Do Not See Coming
Japan’s inheritance tax reaches 55% and is charged on each heir, not the estate. The basic deduction is ¥30,000,000 plus ¥6,000,000 per statutory heir, and the deadline is 10 months from death.
| Who | Taxed On | Notes |
| Table 1 visa heir (10 years or less in Japan within the past 15) | Japan-situated assets only | Longer residents lose this protection |
| Table 1 visa holder who dies in Japan | Japan-situated assets only | Since the 2021 reform, however long they lived there |
| Table 2 visa holders | Worldwide inherited assets | Includes a house or account in the US |
| Anyone | Japanese real estate, bank accounts, company shares | Always taxable |
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 state tax duties.
| Item | Detail | Notes |
| States to watch | California, New York, Virginia | Aggressive residency rules |
| Ties that count | Bank account, driver’s license, storage unit, family property | Any of these can keep you taxable |
| What to do | Break your home-state domicile before you leave | Steps vary by state |
Behind on Your US Taxes? The IRS Streamlined Program Exists for This
The IRS Streamlined Foreign Offshore Procedures offer a penalty-free way back into compliance if the failure was non-willful (not intentional).
| Step | Requirement |
| File | 3 years of delinquent returns and 6 years of FBARs |
| Pay | Any tax owed, plus a small interest charge |
| Result | All penalties waived (non-willful failures only) |
| Deadline | Not a calendar date: the window closes permanently once the IRS contacts you first |
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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