Running a Smoke-Free Minpaku or Small Inn in Japan (2026): House Rules, Damage Costs and Guiding Guests to Legal Smoking Spots

What the law settles, and what it leaves to you

The revised Health Promotion Act came fully into force on 1 April 2020 and made facilities used by many people non-smoking indoors as a general rule (source: MHLW https://jyudokitsuen.mhlw.go.jp/point/). Article 40(1) then carves out places where the passive-smoking chapter does not apply, including habitable premises and the guest-room areas of Hotel Business Act facilities. Article 40(2) adds that where such a place exists inside a wider regulated facility, the chapter does not apply to that place. Note the limit of that carve-out: a lobby, corridor or stairwell is not automatically treated the same way as a guest room. Which spaces in your building fall where is a question for your local public health centre, not something to assume.

Duties that shape smoking operations for minpaku hosts

• Article 2(3): a private lodging business is one where guests are accommodated for no more than 180 days in a year
• Article 5: hosts must limit guest numbers according to room floor area, clean regularly, and take other measures needed to secure guest hygiene
• Article 9: hosts must explain to guests the matters needed to prevent harm to the living environment of the surrounding area, including consideration to prevent noise — the natural home for your smoke and odour guidance
• Article 10: complaints and enquiries from residents in the surrounding area must be handled appropriately and promptly
• Article 13: the prescribed sign must be displayed at each registered property in a place visible to the public

Registration procedures, prefectural and municipal add-on ordinances, and the relevant local contact points are consolidated on the Japan Tourism Agency's minpaku portal (https://www.mlit.go.jp/kankocho/minpaku/). Some municipalities restrict operating days or zones by ordinance, so confirm the framework your property sits in before you finalise any house rule.

Write the alternative, not just the prohibition

Most smoking incidents at small properties trace back to an information gap rather than defiance: the listing said "non-smoking", the guest could not tell where smoking was actually possible, and the entrance or balcony became the default. Spell out the scope (room, balcony, private garden, shared corridor, entrance), the products covered (cigarettes, heated tobacco, vapes, cigars), the treatment of bringing butts indoors — and then give the walking route to the nearest designated smoking spot. You can look those up on the MottoSuitai smoking-spot map and paste a link or QR code into your check-in message. For the guest-side view of the same question, see our guide to smoking rules at Japanese Airbnb and minpaku stays, and check that your wording does not contradict what guests are reading elsewhere.

Charges: the two properties that publish real figures

There is no reliable "market rate" to quote, because charges depend on the accommodation contract, the actual loss and what was disclosed in advance. Two operators do publish figures. Keikyu EX Inn states that smoking in a non-smoking room — explicitly including electronic and heated tobacco — or bringing in cigarette butts is refused, and that JPY 30,000 will be charged as compensation for taking the room off sale plus special cleaning (posted 11 March 2025, source: https://www.keikyu-exinn.co.jp/contents/info/detail/?id=1074). Hotel Nikko Kansai Airport states in English that if smoking or cigarette butts are found in the room, a total charge of JPY 50,000 will be imposed for room cleaning and room damage compensation, and notes that smoking includes an electric cigarette (source: https://www.nikkokix.com/en/news/8003). The structure is worth copying even if the number is not: cleaning cost and lost sale nights are two separate things, and saying so in advance makes the eventual conversation easier.

Under-20s, signage and scope

Under the revised Health Promotion Act, people under 20 may not enter a smoking area at all, even when they have no intention of smoking, and this applies to staff as well. Facilities with smoking equipment must display the prescribed signage; misleading signage and defaced signage are prohibited and subject to penalties (source: MHLW https://jyudokitsuen.mhlw.go.jp/point/). If you are considering placing an ashtray outdoors or setting aside a shared-area smoking space, treat signage and the age rule as part of the same decision. This article summarises publicly available sources as of 18 August 2026, does not judge any individual property or contract, and is not legal advice — consult your local public health centre and a qualified professional for your own case.