Japan Travel Guide
Tipping is not common in Japan. It's not necessary to tip in taxis, hair salons, barbershops, bars, or nightclubs. A chauffeur for a hired car usually receives a tip of ¥500 for a half-day excursion and ¥1,000 for a full-day trip. Porters charge fees of ¥250 to ¥300 per bag at railroad stations and ¥200 per piece at airports. It's not customary to tip employees of hotels, even porters, unless a special service has been rendered. In such cases, a gratuity of ¥2,000 to ¥3,000 should be placed in an envelope and handed to the staff member discreetly.