In Japan, when you received a receipt at a shop or a restaurant for something over 30,000 yen, the shop/restaurant had to attach a revenue stamp to the receipt (200 yen stamp if the amount is under 1,000,000 yen).
From 1st April 2014, the least amount which is subject to taxation has changed from 30,000 yen to 50,000 yen. This is a big change for shop/restaurant owners, but is not very much known.
If you are a shop/restaurant owner, be sure to inform this matter to your staffs.
National Tax Agency (Japanese page)