Japan’s remittance-based taxation for non-permanent residents means you owe Japanese income tax on every yen of domestic-source income, but on foreign-source income only when it is paid into Japan or sent here from abroad. Foreign earnings that stay in overseas accounts sit outside the National Tax Agency’s reach. The rule comes from Article 7 of the Income Tax Act, and it creates genuine planning room, along with a set of traps for people who assume “remittance” means only wire transfers.
Who Counts as a Non-Permanent Resident
Under Article 2, Paragraph 1, Item 4 of the Income Tax Act, a non-permanent resident is a person who does not hold Japanese nationality and has maintained a domicile or residence in Japan for a total of five years or less during the preceding ten years.
The five-year count is cumulative, not consecutive. Someone who lived in Japan for three years, left for two, and returned for another two has already hit the threshold, even though neither stay on its own would.
Visa type is irrelevant. A highly skilled professional visa holder and a spouse visa holder are treated the same way. Only two variables matter: nationality, and aggregate time domiciled or resident in Japan inside the rolling ten-year window.
Cross five cumulative years and you become a permanent tax resident automatically on that exact date, and you owe Japanese tax on worldwide income from that point forward. Logging your entry and exit dates is the only reliable way to see the change coming.
Domestic-Source vs Foreign-Source Income
Everything turns on which of two buckets a payment falls into.
Domestic-source income is always fully taxable
This bucket covers salary for work physically performed in Japan, business profits from Japanese operations, rent from Japanese real estate, and other earnings tied to activity inside the country. The sourcing rule for employment follows the location of the work, not the location of the employer or the paying bank. Work done in Tokyo for a Singapore company that pays your salary into a Singapore account is still domestic-source income. It is taxable in Japan regardless of where the money lands.
Foreign-source income is taxed only if it enters Japan
Dividends from overseas investments, interest from foreign bank accounts, rent from property outside Japan, and certain capital gains sit in this bucket. As a non-permanent resident, you owe Japanese tax on foreign-source income only when it is “paid in Japan or remitted to Japan from abroad.” That phrase from Article 7 contains two separate triggers.
“Paid in Japan” catches foreign-source income deposited directly into a Japanese account. An overseas fund that wires dividends into your Japanese brokerage account has triggered Japanese tax for that year, even though you never moved the money yourself. “Remitted to Japan” catches the more familiar case of transferring money in from abroad. Either trigger produces the same result for that calendar year.
What the NTA Counts as a Remittance
A wire from an overseas bank to a Japanese one is the obvious case. The NTA’s working definition is wider than most people realize.
- Any electronic transfer from a foreign account into a Japanese account.
- Foreign-earned cash carried through customs into Japan.
- Purchases in Japan charged to a credit or debit card issued by a foreign bank. The settlement hits your overseas account, and the NTA treats the amount spent as a remittance.
- Yen withdrawn from a Japanese ATM using a card linked to a foreign bank account.
- Repayments of a Japanese loan made with funds from an overseas account, treated as bringing foreign wealth into Japan even though the loan proceeds were already here.
The credit card rule surprises people the most. A few restaurant dinners and online purchases charged to an overseas card can quietly add up to a meaningful taxable remittance over a year. If you are relying on the remittance basis to shelter foreign income, use a Japanese-issued card for spending inside Japan and reserve foreign cards for purchases made while traveling outside the country.
How Much of a Remittance Is Actually Taxed
Not every yen you send into Japan is taxable. The question is whether the transfer represents current-year foreign-source income or previously accumulated savings and capital.
The general approach treats any amount remitted during a calendar year as coming first from that year’s foreign-source income. Earn ¥5 million in foreign dividends during the year and transfer ¥3 million into Japan, and the full ¥3 million is taxable foreign-source income. Transfer ¥7 million instead and ¥5 million is taxable (matching the year’s foreign income), while the remaining ¥2 million is generally treated as a non-taxable transfer of prior savings or capital.
Convert all amounts to yen using the Telegraphic Transfer Middle rate (TTM) published by your primary financial institution on the date of each transaction. The NTA also allows the TTM rate from the last day of the preceding month, or an average rate over a reasonable period, as long as you apply the same method consistently.
Getting this right requires matching the timing of every foreign-source deposit against the timing of every transfer into Japan. A spreadsheet listing each foreign-source payment received, each inbound transfer, and the applicable TTM rate for each is the minimum documentation to keep. Hold onto these records for at least seven years in case of audit.
Equity Compensation and Foreign Capital Gains
Stock-based pay creates sourcing questions that matter a lot for non-permanent residents working at multinational companies.
Restricted stock units
When RSUs vest, the income is sourced by where you physically worked during the vesting period. If the grant-to-vest period ran two years, and you spent the first year in the United States and the second year in Japan, roughly half the vesting income is domestic-source (the Japan portion) and half is foreign-source (the U.S. portion). The domestic-source half is taxable in Japan immediately. The foreign-source half is taxable only if paid in Japan or remitted.
The formula is total vesting value multiplied by the ratio of days worked in Japan during the vesting period to total days in the vesting period. You need documentation of your work location for every day in the window.
Capital gains on foreign securities
Gains from selling shares on a foreign exchange are generally treated as foreign-source income for non-permanent residents, so they escape Japanese tax unless remitted. There is an important exception: shares acquired during periods when you were a non-permanent resident in Japan may not qualify for that foreign-source treatment. The rules are technical enough that anyone sitting on large unrealized gains in a foreign brokerage account should get professional advice before selling.
Tax Rates, Foreign Tax Credit, and Filing
Taxable income from both buckets is subject to Japan’s progressive national income tax:
- Up to ¥1,950,000: 5%
- ¥1,950,001 to ¥3,300,000: 10%
- ¥3,300,001 to ¥6,950,000: 20%
- ¥6,950,001 to ¥9,000,000: 23%
- ¥9,000,001 to ¥18,000,000: 33%
- ¥18,000,001 to ¥40,000,000: 40%
- Over ¥40,000,000: 45%
Individual inhabitant tax sits on top of national income tax and goes to your prefecture and municipality. The standard income-based rate is 10%, made up of a 4% prefectural component and a 6% municipal component, with slight local variation and a small fixed per-capita charge. Inhabitant tax is assessed on the prior year’s income and applies to anyone who is a resident of Japan on January 1 of the current year. Arrive partway through a year and stay past January 1 of the following year, and your first inhabitant tax bill will cover income from arrival through December 31. Leave before January 1 and you won’t owe inhabitant tax on the prior year’s income.
Foreign tax credit
When remitted foreign-source income has already been taxed by another country, you can claim a foreign tax credit against your Japanese liability. The credit is limited by a formula: your Japanese income tax for the year multiplied by the ratio of your foreign-source income (paid in Japan or remitted) to your total income.
For non-permanent residents, the foreign income figure in that calculation is restricted to foreign income actually paid in Japan or remitted. Foreign income that stayed overseas and was never taxed in Japan does not factor into the credit limit, even if a foreign country taxed it.
Claiming the credit requires filing the Detailed Statement for Foreign Tax Credit with your return, together with the foreign country’s tax assessment or return, proof of payment, and a breakdown of how the foreign-source income was calculated. Where a tax treaty between Japan and your home country contains different sourcing rules, the treaty controls.
Filing the return
Non-permanent residents with remitted foreign-source income must file the final income tax return, the kakutei shinkoku. The window runs from February 16 through March 15 for the previous calendar year’s income, shifting when either date falls on a weekend or holiday. The NTA’s e-Tax portal accepts electronic filings, and your local tax office accepts paper forms.
The return should show your domestic-source income, any foreign-source income paid in Japan or remitted during the year, the exchange rates applied to each foreign currency transaction, and any foreign tax credit claim. Pay any balance due by the filing deadline. Keep a copy of the return and supporting documents; the filing confirmation is what you’ll show when a visa renewal or other administrative process asks for proof of tax compliance.
Penalties for Getting It Wrong
Filing late triggers an additional tax of 15% of the unpaid amount, climbing to 20% on any portion above ¥500,000 and 30% above ¥3,000,000. Filing voluntarily before the NTA contacts you about an audit drops the rate to 5%. Filing after audit notification but before a formal correction is 10%, rising to 15% above ¥500,000.
If you file on time but underreport, the additional tax is 10% of the increase in your bill, rising to 15% on the excess above either your originally reported tax or ¥500,000, whichever is greater. Deliberately hiding or disguising income carries a heavier additional tax of 35% for understatement or 40% for failure to file, with a further 10% surcharge for repeat offenders penalized within the prior five years.
Overdue tax also accrues delinquent tax at 7.3% per year (or a lower rate tied to the Special Standard Rate of Delinquent Tax) for the first two months, then 14.6% (or the corresponding alternative rate) after that. The NTA waives delinquent tax when the total is under ¥1,000.
When Your NPR Status Ends
The move from non-permanent to permanent tax resident is the biggest change in your Japanese tax life, and it doesn’t wait for the end of the calendar year.
The mid-year split
When you cross the five-year aggregate threshold during a tax year, the year splits. From January 1 through the day before your five-year anniversary, you are taxed on the remittance basis. From the anniversary through December 31, you owe tax on all worldwide income. A remittance made during the second period does not retroactively pull foreign income earned during the first period into tax. New foreign income earned after the transition is fully taxable whether you bring it into Japan or not. Organizing your accounts before the anniversary makes the filing far simpler.
Exit tax
Japan’s exit tax on unrealized capital gains applies to departing residents holding more than ¥100 million in qualifying financial assets who have lived in Japan for more than five of the preceding ten years. Because non-permanent resident status itself caps out at five years or fewer within that window, the exit tax generally does not reach someone still classified as an NPR when they leave. It becomes relevant only after the transition to permanent tax residence.
Overseas asset reporting
Permanent tax residents holding more than ¥50 million in overseas assets on December 31 must file a Report of Foreign Assets by June 30 of the following year. Non-permanent residents are explicitly excluded from this filing. The obligation kicks in for the first December 31 after your status changes, so if your overseas portfolio is anywhere near ¥50 million, that transition date is worth tracking closely.