Changing to a spouse visa inside Japan

Sometimes — and that unsatisfying answer is the legally accurate one. The statute says such changes "shall not be permitted unless based on unavoidable special circumstances," and the ISA's FAQ says they are not allowed as a rule. In practice, offices do grant them when the marriage is already registered in Japan, the relationship evidence is strong, and the application is accepted for examination at all. Nobody — including the ISA, which has published no definition of the special circumstances — can tell you in advance which side of the line your case falls on. The route that removes the uncertainty is the COE.

Because three separate gates each involve discretion, and people only report the final outcome. Gate one: the office can decline to accept the application at the counter — those people report "impossible." Gate two: an accepted application still faces the statutory "unavoidable special circumstances" test, with no published criteria. Gate three: even outside the proviso, change of status is discretionary by law. Two truthful reports — "I switched in three weeks" and "they told me to leave and get a COE" — can both be accurate descriptions of the same system.

No official definition exists — we checked the statute, the ISA guidelines (last revised January 2026), and the FAQ. The only published gloss is negative: a COE issued during your stay does not by itself qualify. The examples practitioners cite from experience: a marriage concluded and registered during the stay, pregnancy or a child of the couple, illness, or conditions making return to the home country unreasonable. Treat those as field observations, not rules.

The ISA's published answer is that the COE alone doesn't entitle you to — its FAQ states explicitly that a COE issued mid-stay does not constitute unavoidable special circumstances. Some offices accept the application anyway and process it quickly (the examination behind a COE is the same examination); some send you to the embassy. The guaranteed path costs one short trip: visa at a Japanese embassy in about 5 working days, then re-enter as a spouse. If you'd rather try the change, consult the immigration office first rather than betting your remaining days on it.

No. The COE is an entry document — it exists to bring people in from abroad. If you already hold a mid- or long-term status, you change it directly with a 在留資格変更許可申請; no COE is filed at any point. People who obtain a COE while already living in Japan on a work visa have done an unnecessary step.

Substantively they are the same file: your spouse's koseki showing the marriage, the foreign marriage certificate, the supporter's 住民税 tax certificates for the most recent year, the letter of guarantee signed by your Japanese spouse, the household 住民票, the 8-page questionnaire, and couple photos (unedited — the ISA bans app-filtered photos) plus SNS/call records. The differences are mechanical: the change application adds your passport and residence card for presentation and skips the return envelope. Yes — the questionnaire and letter of guarantee are required on this route too.

As soon as the file is complete. The application must be accepted before your current period of stay expires, and filing early keeps the 特例期間 buffer meaningful. The one hard prerequisite: the marriage must already appear on your spouse's koseki (or come with the registration receipt) — immigration examines a registered marriage, not an intention to marry.

Nothing, within limits: if the application is filed before the current period of stay expires, you may legally remain under the old status until the decision or 2 months past expiry, whichever comes first — except holders of periods of stay of 30 days or less. File before expiry and the law itself bridges you. Note the exception — a 15- or 30-day temporary visitor stay gets no bridge at all, which is one reason this entire route practically requires a 90-day landing.

Don't plan on it. The ISA's published standard for extending temporary-visitor status is granted in principle only for truly unavoidable humanitarian circumstances or equivalent special circumstances — the ISA's example is needing medical treatment. Whether a pending spouse application qualifies is addressed nowhere official, and practitioners report both extensions granted and flat refusals. The safe assumption: your 90 days are your 90 days.

Being here is lawful — your spouse files the COE as your proxy regardless of where you are, and no rule prohibits you from visiting while it processes. What your presence does not do is create any right to stay past your permitted days or to convert in-country when the COE arrives. Couples who do this typically plan one trip out: leave within the 90 days, collect the visa at an embassy, re-enter as a spouse. Budget for the official COE average of about 3–4 months when deciding whether waiting in Japan makes sense at all.

No — and this invisible step explains many "impossible" reports. A refusal to accept (不受理) means no examination ever happened; nothing goes on your record. It usually signals the office sees no special circumstances worth examining. The practitioner playbook is to pre-consult the examination section with the complete file before attempting to submit, and to treat acceptance itself as the first real signal. A formal denial after examination is a different event entirely.

There is no published rule for this case. If the decision comes within your 特例期間, that period simply runs out; practitioners report offices sometimes designating a short departure-preparation status (特定活動), but no source guarantees it for a temporary-visitor applicant. What is certain: overstaying is catastrophic — it converts a marriage case into a deportation case, and a later spouse visa becomes dramatically harder. Leave within your permitted time and use the COE route from abroad.

Assume no. The procedure requires the applicant to be in Japan, and as a temporary visitor you have no re-entry permission to preserve your application across a departure — leaving effectively walks away from it. If you must travel, talk to the immigration office handling your case before booking anything.

For mid/long-term holders, typically weeks to a couple of months — and the law's own 2-month 特例期間 is a fair signal of the expected ceiling. Tourist-route cases are less predictable: the same relationship examination as a COE is being done on a shorter clock. COE-in-hand changes are sometimes processed very quickly because the examination already happened. See the timeline page for how the phases work.

No — same documents, same honest answer: there is no statutory income threshold. The change/renewal guidelines (revised January 2026) add something the COE route never states in writing: livelihood is assessed on a household basis (世帯単位で認められれば足ります), and even a public-burden case is weighed against humanitarian reasons rather than auto-denied. See the income requirement page for the full picture.