Japan’s minpaku 180-day cap: what guests should know

The 180-day minpaku cap applies to homes registered under Japan’s Private Lodging Business Act. It does not apply to every apartment, hotel or Airbnb listing.

If you are considering a long stay in a private lodging, ask which licence or registration the property uses and whether it can host you for your full stay. A booking lasting a month or more doesn't automatically become a residential tenancy or stop counting as lodging.

What the cap measures

The official minpaku portal explains that each registered lodging can host guests on no more than 180 days, counted from noon on 1 April to noon on 1 April the following year. One night counts as one day. This isn't a January-to-December allowance.

It counts the days guests stay, not the number of bookings. Splitting one continuous stay into several bookings doesn't create extra available days. Ask the business to confirm your dates against its remaining allowance; guests don't have access to its complete operating record.

Local restrictions can further limit availability

The Private Lodging Business Act allows local governments to restrict where and when these lodgings operate, under conditions set by the law. The national cap therefore isn't a promise that a particular address can host on any 180 days it chooses.

Check the relevant ward's current information if the business cannot explain an availability restriction. Avoid using a rule for one neighbourhood as a rule for all of Tokyo: the local land-use rules and any exceptions depend on the property's address.

If availability is unclear, ask the host to confirm that it can accommodate every date from [arrival] to [departure] under the rules for that address. Keep the answer with the reservation.

What the cap can mean for pricing

A host with year-round fixed costs has fewer nights in which to recover them when operating days are limited. That can help explain a quote, but it won't tell you what any particular home should cost.

Consider an illustrative annual fixed cost of ¥1,800,000. Spread across 180 occupied nights, that is ¥10,000 per night before cleaning and other costs. Spread across 120 occupied nights, it is ¥15,000. With fewer occupied nights, each night needs to cover more of the fixed costs. The example does not establish any particular business’s prices or earnings.

A host who lives in the home may use it on unbooked days, so that calculation may be less useful for their costs.

A permit, a notification and a lease are different

The licensing comparison explains which permission to check with your host. A private-lodging home has a registration number, while a hotel or inn has a permit; certain designated areas also allow a separate local approval. A residential lease is a different arrangement, so check the agreement as well as the advertised length of stay. “Minpaku” is sometimes used casually for more than one of those routes.

Ask the host for the registration or permit number for the type of accommodation they offer. A hotel-permitted property will not necessarily have the registration number beginning with M used by this minpaku scheme. That alone does not make the property illegal. A number on a listing needs to match the address and business; don't assume copying a valid-looking number establishes that match.

If you cannot resolve a discrepancy with the host or booking platform, contact the local authority responsible for lodging before paying. If you cannot find the property in one online search, ask the office to help check the record before drawing a conclusion.

Before confirming a longer stay

Ask what happens if the business cannot provide the whole booking, including refund and relocation arrangements. Read the cancellation policy and keep the accommodation's legal information with it.

Compare the complete price with a suitable monthly apartment, including fees and the different agreements involved. Choose the place that can host your dates under a clear arrangement, rather than extending a reservation in the hope that a 30-night label changes its legal category.