Taiwan vs Japan: 7 Smoking Rule Differences Visitors Notice (2026)

Where each system puts the indoor exception

Both systems start from the same place: indoor spaces used by the public are non-smoking. What differs is the shape of the exception. Taiwan requires the exception to be physically separated — an indoor smoking room with its own air conditioning and its own partitioning, or a cigar bar (Article 18(1)(11)). Japan has an equivalent "sealed smoking room" type, but it also kept a transitional measure for small restaurants already operating on 1 April 2020, and that measure allows the whole venue, not just a side room, to be a smoking-permitted room. This is why a Taiwanese visitor can walk into a small izakaya in Japan and find that the dining floor itself permits cigarettes.

Japan has four room types in total, and the type determines both what you may smoke and whether you may eat: a sealed smoking room (smoking only, no food or drink), a heated-tobacco-only room (heated tobacco, food and drink allowed), a smoking-permitted room (cigarettes plus food and drink, transitional, small existing restaurants only), and a smoking-purpose room (food and drink other than a main meal, in venues whose main business is smoking). All four exclude anyone under 20, and every facility with smoking equipment must display the designated sign (source: MHLW https://jyudokitsuen.mhlw.go.jp/).

Devices: e-cigarettes and heated tobacco

Article 15 of Taiwan's Act prohibits manufacturing, importing, selling, supplying, displaying and advertising e-cigarette-type products and heated tobacco products that have not passed the health risk assessment review, and paragraph 2 prohibits their use outright. Taiwan's Ministry of Health and Welfare publishes the review status of applications (source: https://www.mohw.gov.tw/cp-16-83217-1.html), and using a non-approved product can attract a fine of up to NT$10,000 (source: https://www.mohw.gov.tw/cp-16-75197-1.html). Japan handles these categories under a different legal framework, covered in our guide to vaping and e-cigarette rules in Japan and our heated tobacco guide. Seeing a product on sale in Japan does not mean it may be used or brought into Taiwan — check Taiwan's official sources before you travel home.

Outdoors, penalties and ages

• Taiwan: Article 19(1) covers outdoor areas of libraries, museums and other cultural and social education institutions, outdoor sports grounds and pools and similar public leisure spaces, and outdoor areas of elderly welfare institutions — smoking only in a designated smoking area, and nowhere at all if none is provided
• Japan: there is no nationwide street smoking ban; municipalities designate restricted zones by ordinance, and zones, fines and patrols differ from place to place
• Taiwan: smoking in a place covered by Article 18(1) or Article 19(1) carries a fine of NT$2,000 to NT$10,000 (Article 40)
• Japan: smoking where smoking is prohibited carries a non-penal fine of up to JPY 300,000, and facility managers face up to JPY 500,000 for breaching duties such as removing smoking equipment or displaying signs (source: MHLW https://jyudokitsuen.mhlw.go.jp/point/)
• Both: the age line is 20. In Japan, under-20s may not enter a smoking area at all, even without intending to smoke, and this applies to staff as well as customers

This is a third-party summary of Taiwanese and Japanese government sources as of August 2026, written to help visitors follow the rules of the place they are in. It does not rank either system, does not confirm whether any specific venue permits smoking, and does not cover what you may carry home. Please check official sources for the current position. This article does not encourage smoking.