Extend your stay in Japan: what ISA allows beyond 90 days

You can apply to extend a tourist stay in Japan, but the Immigration Services Agency (ISA) approves it in principle only when humanitarian circumstances leave no choice. The ISA’s own example is medical treatment. Irish advice mentions a 6-month ceiling; British advice refers to another 90 days.

Can you extend your stay in Japan as a tourist?

Yes, an application exists, but approval is not routine. On its short-stay visitor page the agency says extensions are allowed in principle when humanitarian circumstances leave no choice, or something comparable, and it names illness that needs treatment as an example. A wish to see more of the country does not count.

The governments of two source markets describe the outer limits:

Source	What it says about an extension
ISA (Japan)	Exceptional: humanitarian or comparable special circumstances, such as medical treatment
UK government	Apply at a local immigration office for a further 90 days; the passport must cover the extension
Government of Ireland	Short stay of up to 90 days, extendable to 6 months on application inside Japan

Read the 90-day and 6-month figures as ceilings and the ISA’s wording as the test. Our guide to how long you can stay in Japan explains the starting point.

What documents does the ISA ask for?

The ISA lists these items for an extension of the Temporary Visitor status:

• The application form for an extension of the period of stay, downloadable from the agency’s website.
• Your passport, shown to the office.
• Materials that show why you must keep doing visitor activities, for example a medical certificate if the reason is treatment.
• A document describing in concrete terms what you have done in Japan since arriving.
• Proof that you can pay for your stay and for your way out of the country, for example a bank balance certificate or a return air ticket.

A few practical rules come from the same page. Certificates issued in Japan must be dated within 3 months of your application. Documents in a foreign language need a Japanese translation. Originals are generally not returned, so ask at the desk if you need one back. An incomplete application can be delayed a great deal or lead to an unfavourable decision, and the office may ask for documents not listed on the page.

Where do you apply?

British advice says to apply at your nearest immigration office. The agency refers questions about forms and documents to its information centre for foreign residents, telephone 0570-013904 within Japan or 03-5796-7112 from overseas or on IP phones. The form can be downloaded, and regional immigration offices also keep paper copies.

If someone other than you submits the papers, the ISA checks that they are allowed to do so. Read the rules before you send a friend or relative. Keep your passport, return ticket, proof of funds and every certificate in one folder when you go to the office. The ISA warns that a missing certificate can delay the decision, so check the list twice.

A realistic example

For example, a visitor on a 90-day stay is hospitalised in week ten and her doctor says she cannot fly for several weeks. She has a medical certificate, a record of her activities, bank statements and a return flight. That is the sort of case the ISA describes as an unavoidable humanitarian reason.

Compare a visitor who loves Kyoto and wants another month. There is no humanitarian reason, and the ISA’s wording gives him little reason to expect a yes. He should plan the longer stay with the right visa from home. Our Japan visa checker shows where to start.

Common mistakes

• Treating the 6-month figure as a right. The ISA applies a narrow test.
• Waiting until the last day. Overstaying brings penalties.
• Arriving without bank evidence or a way to leave.
• Hoping to switch to a work or student visa. Canada states you cannot apply for a business, work or student visa after entering as a tourist.
• Forgetting that the passport must stay valid through the extension.

What happens if you overstay?

The UK government warns that you risk arrest, detention and a heavy fine if you overstay your permission. Canada calls overstaying a criminal offence and says you may be fined, deported and barred from re-entering Japan. If you think you might need more time, start the process while your permission is still running.

Insurance if you fall ill

The Irish government recommends full travel insurance, including medical repatriation or evacuation. The Canadian advice says the same about medical evacuation and hospital stays. An illness that forces you to extend is the case where you need that cover most, so check the policy before you leave. Ask the insurer whether cover continues if your return date moves, and keep hospital receipts and discharge papers, because they also support an extension request.

Health, medicine and weather on a longer stay

A longer stay raises practical questions that a two-week holiday does not. The Irish government says some over-the-counter and prescription medicines, including certain allergy and sinus products, are restricted for import into Japan. English-speaking clinics advertise widely, but you may not find the same brand-name medication you use at home.

Canada recommends a visit to a healthcare provider or travel health clinic, preferably 6 weeks before departure, and keeping routine vaccinations current. It also lists travel of more than 30 days among the factors that raise the risk of Japanese encephalitis, which is minimal for most visitors.

Weather can interrupt plans if you stay into autumn. The Irish advice puts the typhoon season between June and October, with August and September the busiest months, and says typhoons can bring high tides and landslides. Check with the airline or transport operator before travelling, and follow the Japan Meteorological Agency in English.

Hotels will want your passport. Canada says Japanese regulations require guests to give detailed information at check-in and to allow the passport to be photocopied. Keep the passport safe, because the ISA asks for it with an extension application.

Money and paperwork need care too. Ireland says some visitors struggle to withdraw cash with cards issued in Ireland, so check with your bank and keep a second way to reach funds, such as a credit card with a cash advance facility. You will need to show proof of funds to the ISA anyway.

One more limit is worth stating plainly. The Government of Canada says it cannot intervene on your behalf if you do not meet the entry or exit requirements of the destination. An extension decision belongs to the Japanese immigration authorities alone, so no embassy can promise the outcome.

Does JESTA change extensions?

JESTA is Japan’s planned online travel authorisation for visa-exempt visitors. It is not required today, and the target launch is within fiscal year 2028 (April 2028 to March 2029). The ISA has not announced any change to how stays are extended. See what JESTA is for the known facts, or use the Japan stay calculator to check your dates.

Stay extension FAQ

Can I extend my tourist stay by 90 days?

According to British advice, you can apply at a local immigration office to stay another 90 days. The ISA approves tourist extensions mostly for humanitarian reasons.

Is a 6-month stay guaranteed?

No. Ireland says a short stay can be extended on application, but approval rests with the ISA.

What reason is accepted?

The ISA gives medical treatment as its example.

Do I need my passport?

Yes. The ISA asks you to show it, and British advice says it must be valid for the extension period.

Where do I get the extension form?

Download it from the agency’s short-stay visitor page. Regional immigration offices also keep paper copies.

Sources

• Japan Meteorological Agency: weather and typhoon information
• Immigration Services Agency: Temporary Visitor status and extension (Japanese)
• UK government: Japan entry requirements
• Government of Ireland: Japan travel advice
• Government of Canada: Japan travel advice
• Immigration Services Agency of Japan