To encourage customers to request official receipts as proof of payment, some local tax authorities issue a type of receipt that doubles as a lottery ticket. The receipts can be used as scratch cards to win small amounts of cash, but they also serve as lottery tickets for winning larger amounts.
中国人想出了一个新奇的解决方案。为了鼓励消费者索取正式发票作为付款的证明，一些地方的税务机关发行了一种同时也是彩票的收据。这些收据可以被用作刮刮卡，赢得小额的现金；但是同时它们也可以用作彩票，赢得更大数额的奖金。为了防止造假，企业必须购买专门用于印制这些收据的专利机器。印制收据的记录被自动传输到税务机关，用于计算税额。台湾和拉丁美洲也在使用类似的制度。