The mechanism
The prize starts working before the draw
A tax system can count only the sales that enter its records. Ren Xianqun, director of the Taiwan Provincial Government's Department of Finance, began with that weakness. On 12 December 1950, his administration prepared the rules for a standard document called the tongyi fapiao, the Uniform Invoice, and for the prizes attached to it. The system took effect on 1 January 1951.
At retail, the Uniform Invoice reached the shopper like a till receipt; in law, it was the standard tax document. Each eligible copy carried a number without costing as much as a separate lottery ticket. The prize gave shoppers a reason to ask for the receipt at the counter.
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Shopper
Asks for the receipt
The number offers a free chance at a prize.
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Merchant
Issues the document
The date, amount and business number go on it.
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Tax record
The sale leaves a trace
The transaction becomes harder to omit from the books.
The available evidence
A large jump, measured with a short ruler
The Ministry of Finance archive records business-tax revenue above NT$51 million in 1951, up from more than NT$29 million one year earlier. In the official history, the resulting figure, 75%, appears as evidence of the prize-bearing invoice's success.
The comparison places one year before the reform beside one year after it. The source offers no estimate holding prices, economic activity and other tax changes constant. Recorded nominal revenue rose by 75% in the first year; the share caused by the lottery alone remains unknown.
Try the prize ladder
Three matching digits pay NT$200
If the last three digits on a receipt match the final three digits of any first-prize number, the receipt is worth NT$200 today. Each additional matching digit raises the award.
How many digits match?
Use the arrow keys or move the slider.
- last 3 digitsNT$200
- last 4 digitsNT$1,000
- last 5 digitsNT$4,000
- last 6 digitsNT$10,000
- last 7 digitsNT$40,000
- all 8 digitsNT$200,000
1951–2026
Early receipts used another lottery's winning number
At first, the receipts did not have their own draw. Winners checked them against the top-prize number from the Patriot Lottery, then administered by the Bank of Taiwan. The main award paid 50 times the value shown on the receipt, with the base capped at NT$1,000. The largest prize was NT$50,000.
The scheme gradually broke away from that lottery and became a unified draw run by the Ministry of Finance. The current regulations schedule it for the 25th of every odd-numbered month, covering invoices from the previous two-month period.
Prize-bearing receipts enter everyday life.
The law raises to 3% the share of annual business-tax revenue reserved for prizes and administration.
The Ministry launches its integrated e-invoice platform.
Invoices kept electronically receive their own prizes.
The mechanism turns 75 and continues on paper and in the cloud.
Continuity
The invoice moved to the cloud, and the incentive stayed
The idea travelled easily beyond paper. The mechanism depends on a number the shopper wants to receive and the transaction that number records. Taiwan began trials for invoices sent over the internet in 2000 and launched its integrated platform on 6 December 2006. Since 2013, electronic invoices stored through Ministry-approved carriers without a printed copy have had dedicated prizes.
The rules reserve 3% of annual revenue from today's business tax for prizes and related costs, including promotion, data checks, informant rewards and administration. The budget returns each year as part of the tax system.
What lasts
The shopper gets a chance, the state gets a trace
A receipt collected while shopping can pay up to NT$10 million. For the merchant, every document ties together an amount, a date and the identity of the business. This difference in stakes gives the system its elegance.
Complete compliance still depends on the whole tax system. The prizes play a narrower and more ingenious role: they capture the attention of the person already standing at the counter, just when a sale can leave a trace or disappear. Seventy-five years later, a chance at a prize still starts with an ordinary request: the receipt, please.
Documents
Sources at the end of the receipt
- Historical archive of the Uniform InvoiceTaiwan Ministry of Finance, the source for 1951, the 75% figure and the first prize system.
- History of Uniform Invoice printingMinistry of Finance, the chronology and fields recorded on the document.
- Uniform Invoice Award RegulationsThe 21 July 2022 edition, with the prize ladder, draw schedule and 3% funding rule.
- History of the e-invoiceMinistry of Finance, the 2006 platform and cloud prizes.
- History of the Patriot LotteryMinistry of Finance, the Bank of Taiwan mandate and the lottery's operating period.
- History of business taxMinistry of Finance, the historical tax base and the later move to VAT.
I accessed each source directly on 1 September 2026. The historical amounts are nominal and appear in the official archive as "over 29" and "over 51" million Taiwan dollars. This page reproduces the institution's published figure of 75% and does not present it as a causal estimate. The 1951 wording refers to turnover tax; the current 3% rule belongs to Taiwan's modern value-added and non-value-added business tax system.