Checked against the official pages of Japan’s Immigration Services Agency (ISA) and the Japan National Tourism Organization (JNTO) on 21 September 2026. Fees are set by the ISA and can change, so the one number worth re-checking before you file is the fee on the ISA’s extension page.

Almost nobody needs an extension in Japan, and that is by design. Most visitors are allowed to stay 90 days, which is longer than nearly any holiday, so the practical advice is simple: check the number of days stamped or stickered in your passport when you land, and plan your trip inside it. If something unexpected does happen, such as a hospital stay that outlasts your permitted days, there is a formal route, and it works best when you start it early. Here is what the official pages say about who qualifies and how to apply.

Most visitors are granted 90 days, and the exact number is decided when you land

JNTO says that most short-term stays allow up to 90 days, and that some nationalities are granted 15, 30 or 180 days. The number that counts for you is the one given at landing, so look at it before you leave the airport and note the last day in your phone’s calendar. If your trip is close to the limit, you are the reader who benefits most from the rest of this article.

An extension is a narrow exception, granted only for truly unavoidable reasons

The ISA’s page on the “Temporary Visitor” status, which is the status nearly all tourists hold, states that an extension of the period of stay is in principle granted only where there are truly unavoidable humanitarian circumstances or comparable special circumstances. The example it gives is the need for medical treatment. Enjoying the trip and wanting more days, or finding a cheaper flight home a week later, are not the kind of reason the page describes.

That tells you where to spend your effort. If you simply want a longer stay in Japan, decide before you fly. JNTO’s visa information page points remote workers to a digital nomad visa, which is arranged through the Ministry of Foreign Affairs rather than at an immigration counter in Japan. If you already know you cannot leave on time because of an illness, an injury or a similar situation, the extension route below is the one designed for you.

You file before your permitted period ends, at the immigration office that covers where you are

The ISA’s extension application page says the application is filed with the regional immigration services office that has jurisdiction over your place of residence, and that it must be submitted on or before the last day of your current period of stay. For a visitor, the simplest way to find the right counter is to call the ISA’s Foreign Residents Support Center at 0570-013904, which the page lists for questions about procedures and documents. The required documents differ by status, so ask them what a Temporary Visitor needs before you go in person.

Do not wait for the last day. The ISA gives a standard processing time of two weeks to one month, so filing on the final day leaves you no margin. The moment you know you might need more time, make the call.

The fee is 6,000 yen at the counter, due when the extension is granted

According to the ISA page, the fee is 6,000 yen, due when permission is granted and paid with a revenue stamp. The page lists 5,500 yen for online applications. Whether online filing is open to a Temporary Visitor is worth asking the Support Center, because the page describes the process for all statuses together.

If the date has already passed, act at once

Japanese law treats a stay that runs even one day beyond the permitted period as an overstay, and the consequences are described in detail in our separate guide to overstaying and re-entry bans. The most useful fact from that guide is that people who come forward on their own get a much lighter outcome than people who are found. An extension has to be requested before the date, so if you are at or past the limit, contact the regional immigration bureau immediately instead of waiting to see what happens at the airport.

How Travel AI Rescue helps

Travel AI Rescue keeps the emergency numbers you might need in Japan, including the police, ambulance and your own embassy, one tap away with the country code already attached. It can display Japanese-language cards that explain your situation, so you can hand a phone across an immigration counter and be understood at once. And above all, the AI drafts a clear written summary of your situation and timeline, the kind of note that speeds up a conversation with a hospital or an immigration officer. Passport details stored on the device stay readable with no signal, and there is offline diagnosis for when the eSIM will not connect. It works differently from a staffed help desk or a travel insurance policy, and it is with you around the clock, a bridge that gets you to the right official channel quickly and in the right words. (Extension decisions are made by Japan’s Immigration Services Agency.)

Sources

• Immigration Services Agency of Japan, “在留資格「短期滞在」” (Status of Residence “Temporary Visitor”). https://www.moj.go.jp/isa/applications/status/temporaryvisitor.html (accessed 2026-09-21).
• Immigration Services Agency of Japan, “在留期間更新許可申請” (Application for Extension of Period of Stay). https://www.moj.go.jp/isa/applications/procedures/16-3.html (accessed 2026-09-21).
• Japan National Tourism Organization, “Japan Visa Requirements”. https://www.japan.travel/en/plan/visa-info/longer-stays-program/ (accessed 2026-09-21).