Japan tax residency: the 365-day rule

Japan treats you as a tax resident at 365 days in any rolling 12-month window — but the day count is only the part we can calculate. It is one of Japan's tests, not the whole rule (see the others below). Source: National Tax Agency (国税庁), last reviewed 2026-06-26.

365 days isn't the only route — Japan can also treat you as resident on non-day grounds (jusho (domicile / center of life), kyosho (residence) for one year or more, presumption of domicile in japan - occupation (enforcement order art. 14), presumption of domicile in japan - nationality plus family/assets (enforcement order art. 14), relatives sharing the same livelihood, permanent vs non-permanent resident split (5 of last 10 years)). See every test below.

Spend 365 days or more in Japan across any rolling 12-month window — the count does not reset on 1 January — and residency can attach.

Reviewed by Quentin Dupard, founder · last reviewed 2026-06-26 · How we research

Threshold: 365 days
Counting window: 12-month rolling
Day-based test: 1
Last reviewed: 2026-06-26

How does Japan count days for tax residency?

According to National Tax Agency (国税庁), you become a tax resident of Japan once you spend 365 days or more there in any rolling 12-month window. Crucially, this is a rolling window: it does not reset on 1 January. Any qualifying span that contains enough days can trigger residency, so you have to watch a moving window rather than a fixed year.

One-year continuous residence (resident status)

365 days · any rolling 12-month window

Spend 365 days or more in Japan across any rolling 12-month window — the count does not reset on 1 January — and residency can attach.

Japan classifies you as a 'resident' if you have a jusho (domicile) in Japan OR have maintained a residence continuously for one year or more. Reaching 365 days of continuous presence triggers resident status. Non-permanent-resident vs permanent-resident is a separate 5-of-10-years test affecting foreign-source income taxation.

What else makes you a tax resident of Japan?

The day count is only one route. Japan can also make you a tax resident through any one of the following — regardless of how few days you spend there. These don't depend on a day count, so Yuravia can't track them for you; weigh them against your own situation.

Jusho (domicile / center of life)

You are a resident if your jusho - the principal base and center of your life (work, family, assets, habitual abode) - is in Japan; this is a facts-and-circumstances test with no day count and can apply from the day of arrival, making you taxable on worldwide income (subject to the permanent/non-permanent split).

Kyosho (residence) for one year or more

You are a resident if you have maintained a kyosho - a continuous place of abode that is not the center of your life - in Japan continuously for one year or more, even without a domicile.

Presumption of domicile in Japan - occupation (Enforcement Order Art. 14)

You are presumed to have a domicile in Japan if you have an occupation that normally requires residing continuously in Japan for one year or more (e.g. an open-ended local employment or assignment), creating residency from the outset regardless of actual days.

Presumption of domicile in Japan - nationality plus family/assets (Enforcement Order Art. 14)

You are presumed to have a domicile in Japan if you hold Japanese nationality and, judged by having a spouse/relatives or an occupation/assets in Japan, it is presumed you will continue to reside in Japan for one year or more.

Relatives sharing the same livelihood

A spouse or relatives who share the same household/livelihood as a person presumed domiciled in Japan are themselves presumed to be domiciled in Japan (and, conversely, presumed non-domiciled if the breadwinner is presumed to reside abroad for one year or more).

Permanent vs non-permanent resident split (5 of last 10 years)

Among residents, a non-Japanese national whose aggregate domicile/residence in Japan is five years or less within the preceding ten years is a non-permanent resident (taxed on Japan-source income plus foreign-source income paid in or remitted to Japan); a Japanese national, or a foreigner exceeding five years, is a permanent resident taxed on worldwide income.

Japan at a glance

Tax year: 1 January – 31 December (calendar year); individual income tax returns are due by 15 March of the following year.
How days are counted: Residency is determined primarily by domicile (jusho) or one year of continuous abode, not a pure day count; but where days are counted (e.g. the 183-day treaty test), both arrival and departure days count and any part-day counts as a whole day, except pure transit days.
What residency means: A "permanent resident" (Japanese national, or foreigner present over 5 of the last 10 years) is taxed on worldwide income; a "non-permanent resident" (foreigner present 5 years or less within the preceding 10 years) is taxed on Japan-source income plus foreign-source income only to the extent paid in or remitted to Japan — effectively a first-years remittance-style exception. Non-residents are taxed only on Japan-source income.

Official source

National Tax Agency (国税庁). View the primary guidance ↗

Rule last checked against this source on 2026-06-26.

Count your days in Japan

The day count is the one test you can actually calculate — the home, family and ties tests above, you can’t. Use a free calculator to see exactly how close you are to Japan's 365-day threshold — or let Yuravia track it automatically across every country at once and warn you before you cross a line.

183-day calculator Schengen 90/180 calculator

Frequently asked questions

How many days can I stay in Japan without becoming a tax resident?

According to National Tax Agency (国税庁), Japan treats you as a tax resident at 365 days across any rolling 12-month window (the "One-year continuous residence (resident status)"). Staying under that is necessary but not sufficient — a permanent home, family, or your centre of vital interests can make you resident on fewer days.

Is the day count the only way to become a tax resident of Japan?

No. Beyond the day count, Japan can treat you as resident through jusho (domicile / center of life), kyosho (residence) for one year or more, presumption of domicile in japan - occupation (enforcement order art. 14), presumption of domicile in japan - nationality plus family/assets (enforcement order art. 14), relatives sharing the same livelihood, permanent vs non-permanent resident split (5 of last 10 years) — any one of these can apply even if you stay well under 365 days. They don't depend on counting days, so confirm them against your own circumstances.

What counts as a day of presence in Japan?

In most jurisdictions any day on which you are physically present — including the arrival and departure days — counts as a full day. Treating both as counted is the conservative assumption. Always confirm the exact rule with National Tax Agency (国税庁).

What is the official source for Japan's tax-residency rule?

National Tax Agency (国税庁). The rule on this page was last checked against that source on 2026-06-26. Thresholds and tests change, so confirm before relying on it.

Other countries

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Not tax advice. This page summarises one country's day-count rule from its tax authority. Real residency depends on far more — permanent home, family, economic ties, treaty tie-breakers and intent — and thresholds change. The day count is a proxy, not a verdict. Always confirm with the official source above or a qualified adviser.

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