This is not tax advice. Cross-border outcomes turn on facts this page cannot know: your visa category, your income mix, where your employer is incorporated, what you own and when you bought it. Use this to ask a qualified cross-border accountant better questions, and verify every figure against Japan's tax authority and, for the US side, the IRS guidance for citizens abroad.
Your position in Japan
You stay in the US system. Americans file a federal return from Japan every year, plus FBAR if foreign accounts exceed 10,000 dollars in aggregate at any point.
Japan taxes you based on residence. Domicile in Japan, or a residence maintained continuously for a year or more, makes you a resident. But foreign nationals in their first five years get non-permanent resident status, which taxes Japan-source income fully while taxing foreign-source income only where it is paid in or remitted to Japan. If you have US rental or investment income you do not need to bring over, those five years are genuinely valuable, and the remittance rules reward planning rather than improvisation.
Japanese rates are high. National income tax runs 5 to 45 percent, a 2.1 percent reconstruction surtax sits on top of the tax amount through 2037, and inhabitant tax adds a flat 10 percent, giving a combined top marginal rate near 55.9 percent. Consumption tax is 10 percent, reduced to 8 percent on food.
Because Japanese tax usually exceeds US tax at the same income, most salaried movers take the foreign tax credit rather than the 132,900 dollar foreign earned income exclusion for 2026. The 2003 US-Japan treaty, amended in 2013, handles the rest. The totalization agreement means you pay into one pension system, not two.
Budget for inhabitant tax arriving a full year in arrears.
The United States does not stop taxing you
The US taxes citizens on worldwide income regardless of where they live. Moving to Japan adds a second tax system; it does not remove the first one. Most Americans abroad end up owing little or nothing to the IRS, but that outcome is produced by filing correctly, not by leaving.
Two mechanisms produce that result. The foreign earned income exclusion removes foreign wages and self-employment profit up to an annually indexed cap, but reaches earned income only and does nothing about self-employment tax. The foreign tax credit offsets US tax dollar-for-dollar with income tax actually paid to Japan, reaches passive income the exclusion cannot, and can leave credits to carry forward. You cannot apply both to the same dollar. Separately, FBAR and FATCA reporting is triggered by account balances rather than by tax owed, and carries penalties out of all proportion to the tax at stake.
The full mechanics are the same wherever you move, so they live in one place: US taxes when you live abroad covers the exclusion tests, the credit, treaties and the saving clause, FBAR and FATCA thresholds, self-employment tax and state residency. The rest of this page is what Japan specifically changes.
Which mechanism fits Japan
Japan's top rate of 55.9% sits at or above the US federal top rate of 37%. Local tax is doing the heavy lifting, so the foreign tax credit is the mechanism worth modelling first: it usually eliminates the US liability outright and leaves excess credits to carry forward.
Self-employment in Japan
A totalization agreement covers Japan, so a self-employed American here can normally be assigned to one social security system and exempted from the other, evidenced by a certificate of coverage. Arrange it at the start of the engagement, not at filing time.
US-side official references: FEIE ·Foreign tax credit ·FBAR ·FATCA reporting ·Totalization agreements
Which relief mechanism reaches which income
The most common planning error is assuming the exclusion covers everything. It covers one category. This table maps each kind of income against the mechanisms available to you, with the last column set to Japan's recorded agreement status.
| Income type | Foreign earned income exclusion | Foreign tax credit | Treaty position for Japan |
|---|---|---|---|
| Wages earned while living in Japan | Yes, up to the annual cap, if you pass the residence or presence test | Yes, on anything above the cap or not excluded | The employment income article assigns the primary taxing right |
| Self-employment profit | Income tax only. Self-employment tax survives the exclusion | Yes, against income tax on the same profit | Totalization decides which social security system you pay into |
| Dividends and interest | No. It reaches earned income only | Yes, for foreign tax actually paid on it | Dividend and interest articles usually cap withholding |
| Capital gains on investments | No | Yes, where a foreign tax is paid on the same gain | A gains article assigns the taxing right by asset type |
| Rental income from property | No | Yes, for foreign tax charged on foreign property | Immovable property is normally taxed where it sits |
| Pensions and retirement account withdrawals | No | Yes, where foreign tax is charged on the withdrawal | The pension article decides. Read it before you draw |
| US Social Security benefits | No | Depends which country is entitled to tax them | Many treaties assign them to one country only |
Read the rows against your own income mix. Someone on a local salary and nothing else uses one row of this table. Someone with a brokerage account, a rental at home and vesting equity uses five, and each one can land in a different country.
What Japan's agreements with the US actually change
The general mechanics above apply to every American abroad. What differs country by country is which of them Japan has an agreement to soften. Of the 15 countries covered on this site, 15 have a US income tax treaty, 12 have a totalization agreement and 12 have both. Japan is the case below.
| Issue | Status for Japan | What that means for you |
|---|---|---|
| Double tax on employment income | Treaty in force | A US–Japan income tax treaty exists, so each type of income has an assigned taxing country and there is a defined route to relief rather than an argument. You still file both returns; the treaty decides who taxes what first. |
| Being treated as resident by both countries | Tie-breaker available | Treaties carry a residence tie-breaker: permanent home, then centre of vital interests, then habitual abode, then nationality. It gives you a defensible answer in the year you move, when both countries can plausibly claim you. |
| Social security and payroll contributions | Totalization in force | A totalization agreement covers the US and Japan, so the same earnings are not charged to both social security systems. It also lets contribution periods in each country count toward qualifying for a benefit in the other. |
| Self-employment and freelancing | Certificate of coverage route | Where an agreement applies, a certificate of coverage from the system you do pay into is what you show the other one. Get it before the first invoice, not after the first assessment. |
| Pensions, retirement accounts and investment income | Treaty articles apply | Treaty articles usually address pensions, dividends, interest and capital gains separately from wages. Read the specific articles: a treaty that solves your salary can leave your brokerage account taxed in a way you did not expect. |
Treaty and totalization status is recorded from the sources listed at the foot of this page. Agreements are amended and protocols enter force on their own timetable, so check the current text before taking a position on a return.
Two numbers worth running before you move
Consumption tax, which nobody models
Income tax gets the attention. Consumption tax takes its slice every month without appearing on any return. A US household spending the national average net salary of $4,230 a month would need roughly $2,779 a month in Japan for the same basket, at Japan's overall price level. Of that, the VAT embedded in the prices is up to about $253 a month, against roughly $295 in embedded sales tax at home.
| Measure | United States | Japan |
|---|---|---|
| Headline consumption tax rate | 7.5% | 10% |
| Equivalent monthly basket | $4,230 | $2,779 |
| Tax inside that basket, per month | $295 | $253 |
| Per year | $3,540 | $3,036 |
A ceiling, not a bill. It assumes the whole net salary is spent, and in practice rent sits outside VAT in most systems while food, medicine, books and transport often carry reduced or zero rates, so real exposure lands below this line. The direction of the gap is the useful part: about $42 less per month than at home, before any reduced rate applies.
Marginal rate, read honestly
Japan's top personal rate is 55.9% against a US federal top rate of 37%, a gap of +18.9 points. That comparison is weaker than it looks in both directions. The US figure excludes state income tax, which can add several points on top. The Japanese figure bites at its own threshold, which may be far lower or far higher in income terms than the US bracket it is being compared to. Top rates tell you the shape of a system, not your bill. Model your actual income against the brackets on the official site before you decide anything.
How Japan compares on tax across our dataset
Japan ranks 15 of 15 on headline top personal rate, lowest first, with 0 countries charging a higher top rate. Every row links to that country's own tax page.
| Country | Top rate | VAT | US treaty | Totalization |
|---|---|---|---|---|
| United States (baseline) | 37% | 7.5% | Not applicable | Not applicable |
| Mexico | 35% | 16% | Yes | No |
| Thailand | 35% | 7% | Yes | No |
| New Zealand | 39% | 15% | Yes | No |
| Italy | 43% | 22% | Yes | Yes |
| Australia | 45% | 10% | Yes | Yes |
| United Kingdom | 45% | 20% | Yes | Yes |
| Spain | 47% | 21% | Yes | Yes |
| Norway | 47.4% | 25% | Yes | Yes |
| Germany | 47.5% | 19% | Yes | Yes |
| Portugal | 48% | 23% | Yes | Yes |
| Netherlands | 49.5% | 21% | Yes | Yes |
| Ireland | 52% | 23% | Yes | Yes |
| Sweden | 52.4% | 25% | Yes | Yes |
| Canada | 53.5% | 5% | Yes | Yes |
| Japan · this page | 55.9% | 10% | Yes | Yes |
Headline rates only. They ignore social contributions, local surtaxes, wealth and inheritance taxes, and the very different incomes at which each top rate starts. A country with a high top rate that begins at a high threshold can cost a middle earner less than one with a lower rate that begins early.
The sequence of tax events in your move year
The move year is the messy one: part-year residence in two systems, two calendars, and deadlines that do not line up. This is the order things generally happen in.
- Before you leaveFix the date you stop being a US state resident and the date you land, because almost every later question is answered by those two dates. Take a snapshot of account balances, unrealised gains and any equity vesting schedule. Selling before you become Japan tax resident is a different transaction from selling after.
- The day you arriveRecord the arrival date against something durable, such as a boarding pass, a lease or a registration receipt, because you may have to evidence it years later. It is the day the clock starts on the rule that decides your Japanese tax residency: You are a Japanese tax resident if you have a domicile in Japan or have had a residence in Japan continuously for one year or more. Foreign nationals who have been domiciled or resident in Japan for five years or less within the preceding ten years are 'non-permanent residents', a category that matters a great deal: they are taxed on Japan-source income in full, but on foreign-source income only to the extent it is paid in Japan or remitted to Japan. Cross the five-year line and you become an ordinary resident taxed on worldwide income.
- Weeks 1 to 8: register locallyA local tax number is usually a precondition for a bank account, a lease and a payroll run, so it happens early whether or not you feel like a taxpayer yet. Registering does not by itself make you resident; the residency rule above does.
- First local filingYour first Japanese return covers only the part of the year you were resident, in most systems, and it is the return where split-year treatment is claimed if the country offers it. Deadlines rarely match the US calendar.
- First US filing from abroadTaxpayers whose tax home is abroad get an automatic extension beyond the April deadline, and a further extension on request. The extension is for filing, not for paying: interest runs from the original date.
- The same season: information returnsThe FBAR and, above higher thresholds, Form 8938 are filed on their own schedules and carry their own penalties. They report balances, not income, so people who owe nothing still miss them and still get penalised.
- Month 12 onwardThe bona fide residence test needs an uninterrupted tax year abroad, so the first full calendar year is often the first year you can use it. Until then the physical presence test, 330 full days abroad in a 12-month window, is usually the only route to the exclusion.
State residency: the bill people do not expect
Federal filing is the obligation everyone knows about. The one that catches people is the state they left. States set their own residency rules, and several test domicile, meaning your permanent home in intent, rather than where you physically are. Under a domicile test you can spend a full year in Japan and still be assessed as a resident of your old state, on your worldwide income, with none of the federal relief above available against it. The FEIE and the foreign tax credit are federal mechanisms, and a state is not required to follow them.
What severing residency usually rests on, and what to be able to evidence:
- Ending the lease or selling the home, rather than keeping it available to you.
- Surrendering the state driver's licence and voter registration.
- Moving vehicle registration, professional licences and mailing address out of state.
- Where dependants live and where school-age children are enrolled.
- Day counts, kept contemporaneously. A calendar reconstructed three years later convinces nobody.
- Filing a final part-year return for the state, which is what formally closes the file.
Check your specific state's rule before you leave, not after. It is easier to establish that you left cleanly on the way out than to argue it from Tokyo two years later.
What to keep, from day one
- A day-count log with arrival and departure dates for every trip, including trips back to the US. Both the physical presence test and Japan's own residency rule are decided on days.
- Local payslips and the annual Japanese tax assessment, which is the evidence of foreign tax paid that a credit claim rests on.
- Year-end statements for every non-US account, plus the maximum balance during the year, which is what the FBAR asks for and what banks rarely show by default.
- Cost basis and acquisition dates for anything you owned before you moved, in USD at the time.
- Your certificate of coverage, if a totalization agreement applies to you.
- The exchange rates you used, and the source of them, applied consistently across the year.
Tax questions about Japan
Do I still pay US taxes if I live in Japan?
Yes. US citizens file a federal return regardless of where they live, plus FBAR if foreign accounts exceed 10,000 dollars combined. The foreign earned income exclusion is 132,900 dollars for tax year 2026, but because Japanese tax usually exceeds US tax at the same income, most salaried movers use the foreign tax credit instead. The 2003 US-Japan treaty and the totalization agreement prevent double taxation and double social security contributions.
Sources and review
The Japan-specific figures on this page, meaning the residency rule, treaty and totalization status, rates and notes, come from the sources below. The general US mechanics are described from published IRS, FinCEN and SSA guidance, linked inline above.
What these numbers are. The headline figures were re-derived from primary sources during review. Some category indices could not be matched to a published statistic and are reasoned estimates, marked as such in the list below. Where a source entry says a value is derived, estimated or crowd-sourced, that is exactly what it is: no international body publishes a like-for-like index for every category, and private insurance premiums are not published at all in most countries. Rent figures are national market averages, so a capital city will run above them. How the dataset is built.
- OECD, PPP detailed results: price level indices, Japan with United States = 100, 2024 (household final consumption expenditure 65.7; food and non-alcoholic beverages 112; transport 84.4; restaurants and accommodation services 72.6; housing, water, electricity, gas and other fuels 48.5) — accessed September 4, 2026
- National Tax Agency, Survey on Private Sector Salaries 2024 (average annual salary 4.78 million yen; regular employees 5.45 million yen) — accessed September 4, 2026
- Statistics Bureau of Japan, 2023 Housing and Land Survey summary (national average monthly rent 59,656 yen; private non-wooden rentals 68,548 yen) — accessed September 4, 2026
- Tokyo Metropolitan Government Statistics Division, 2023 Housing and Land Survey, rent of rented dwellings (Tokyo private non-wooden rentals 6,687 yen per tatami mat per month against 4,151 yen nationally) — accessed September 4, 2026
- ESTIMATE: rent_1bed_center_usd of 1,280 dollars (about 200,000 yen) and rent_1bed_outside_usd of 770 dollars (about 120,000 yen) are editorial estimates, not published statistics. They are scaled from the official Tokyo figure cited above: private non-wooden rentals average 6,687 yen per tatami mat per month, which at the statutory 1.65 square metres per mat is about 4,050 yen per square metre, so a 40 square metre one-bedroom at the Tokyo-wide average works out at roughly 162,000 yen a month. Central wards trade above that average and the outer wards below it, and the survey was taken in 2023, before the 2024 and 2025 Tokyo rent increases, so the central figure is set above and the outer-ward figure below the survey-implied midpoint. No crowd-sourced or commercial listing aggregator was used for either number — accessed September 4, 2026
- Immigration Services Agency of Japan, Engineer / Specialist in Humanities / International Services status of residence — accessed September 4, 2026
- Immigration Services Agency of Japan, Highly Skilled Professional preferential measures (5-year stay, permanent residence after 3 years at 70 points or 1 year at 80 points) — accessed September 4, 2026
- Immigration Services Agency of Japan, Digital Nomad (Designated Activities No. 53) requirements and eligible country list including the United States — accessed September 4, 2026
- Immigration Services Agency of Japan, Business Manager status: landing permission criteria ordinance text confirming 30 million yen business assets, one full-time resident employee, Japanese language ability and degree or 3 years management experience, in force 16 October 2025 — accessed September 4, 2026
- Immigration Services Agency of Japan, permanent residence permission application: fee 10,000 yen payable by revenue stamp on approval, raised from 8,000 yen for applications received from 1 April 2025 — accessed September 4, 2026
- Immigration Services Agency of Japan, change of status of residence application: fee 6,000 yen, or 5,500 yen for online applications, raised from 4,000 yen for applications received from 1 April 2025 (the extension of period of stay procedure at 16-3.html carries the same fees) — accessed September 4, 2026
- Immigration Services Agency of Japan, Business Manager status page confirming the revised landing permission criteria took effect on 16 October 2025 (令和7年10月16日に施行) — accessed September 4, 2026
- Immigration Services Agency of Japan, list of countries and regions eligible for Designated Activities No. 53 (Digital Nomad) and No. 54 (accompanying spouse and children), confirming the United States (アメリカ) appears on both lists — accessed September 4, 2026
- National Tax Agency, 2025 Income Tax and Special Income Tax for Reconstruction Guide, section 1-3 'Taxpayers and the scope of taxable income': a resident is anyone with a domicile or a residence of one year or more; a resident of non-Japanese nationality with a domicile or residence in Japan for an aggregate five years or less within the preceding ten years is a non-permanent resident, taxed on income other than foreign-source income, on foreign-source income paid in Japan, and on foreign-source income paid abroad and remitted to Japan — accessed September 4, 2026
- National Tax Agency, 2025 Income Tax and Special Income Tax for Reconstruction Guide index, the tax authority page cited as taxes.official_url and the parent of the residency and rate sections used on this page — accessed September 4, 2026
- JETRO, Investing in Japan section 3: individual income tax rates 5% to 45%, 2.1% reconstruction surtax through 2037, 10% local inhabitant tax — accessed September 4, 2026
- IRS, US-Japan income tax treaty documents (2003 convention and protocol, 2013 protocol) — accessed September 4, 2026
- IRS, tax inflation adjustments for tax year 2026: foreign earned income exclusion 132,900 dollars — accessed September 4, 2026
- Japan Pension Service, status of social security agreements in force, confirming the United States agreement covers both elimination of dual coverage and totalization of periods — accessed September 4, 2026
- Japan Health Insurance Association, Tokyo branch premium table for fiscal 2026 (health insurance 9.85%, 11.47% with long-term care, employees' pension 18.3%, each split evenly with the employer) — accessed September 4, 2026
- Ministry of Health, Labour and Welfare, medical insurance system portal (30% patient cost sharing, high-cost medical expense benefit) — accessed September 4, 2026
- Exchange rate used for all yen to dollar conversions on this page: 1 USD = 156.25 JPY on 4 September 2026 (ECB reference rates via Frankfurter) — accessed September 4, 2026
- World Bank, Japan total population 123,366,734 (2025) — accessed September 4, 2026
- Statistics Bureau of Japan, Family Income and Expenditure Survey, report for December 2025 and the 2025 annual average (published 6 February 2026), Table 3: average monthly expenditure on fuel, light and water charges (光熱・水道) by two-or-more-person households was 24,547 yen in 2025, for an average household of 2.87 persons. The December 2025 breakdown in the same report is electricity 11,497 yen, gas 4,640 yen, other fuel 2,553 yen, water and sewerage 5,324 yen. utilities_index_vs_us is that actual national household bill, not a unit tariff: 24,547 yen converted at 156.25 yen to the dollar is 157.10 dollars, indexed against a US monthly equivalent of 210 dollars for the same electricity, heating, water and refuse basket, giving 74.8. Consumption assumption: whatever a 2.87-person Japanese household actually used in 2025, as recorded by the survey, with no adjustment. Note that Japanese household refuse collection is funded from municipal taxes or mandatory paid disposal bags rather than a separate utility bill, so the Japanese side of this comparison is marginally under-inclusive against the US basket. Japanese rents do not customarily bundle heating or water; the tenant contracts for electricity, gas and water separately — accessed September 4, 2026
- Immigration Services Agency of Japan, Highly Skilled Professional points system explainer, setting out all three activity types: 高度学術研究活動 and 高度専門・技術活動 are defined as activities carried out 本邦の公私の機関との契約に基づいて行う (based on a contract with a public or private organization in Japan), while 高度経営・管理活動 is defined as 本邦の公私の機関において事業の経営を行い又は管理に従事する活動 (operating or managing a business at a public or private organization in Japan) with no contract requirement — accessed September 4, 2026
- Immigration Services Agency of Japan, Immigration Control and Refugee Recognition Act Appended Table I-2 extract for 高度専門職: sub-items (i)(a) and (i)(b) require 本邦の公私の機関との契約に基づいて (a contract with a public or private organization in Japan), whereas sub-item (i)(c) reads 本邦の公私の機関において貿易その他の事業の経営を行い若しくは当該事業の管理に従事する活動 and carries no contract requirement. This is the basis for requires_employer being false on this route: the business management category can be satisfied by a founder running their own Japanese company — accessed September 4, 2026
- Immigration Services Agency of Japan, landing permission criteria ordinance extract for 高度専門職: an applicant whose intended activity falls under the 経営・管理 (Business Manager) heading must also meet that status's own criteria, which is how the 30 million yen business asset rule reaches the Highly Skilled Professional business management category — accessed September 4, 2026
- ESTIMATE: typical_private_insurance_usd_month of 160 is an editorial estimate of market pricing for an international medical policy meeting the Digital Nomad requirement linked here (death, injury and illness cover with at least 10 million yen of treatment coverage for the full stay). It is not a government-published figure. Almost all residents of Japan are legally required to join public insurance instead, so this number applies only to the narrow group that cannot — accessed September 4, 2026
Your New Country publishes reference information, not tax advice. Tax positions are fact-specific and the penalties for getting a cross-border position wrong are heavier than the fees for getting it checked. Before you file, take advice from an accountant who works both systems, and confirm everything against Japan's tax authority and the IRS, which administers the US rules described here.