The encyclopedia · Finance & Accounting · Strategic decision · 2007–2018
São Paulo's receipt lottery made shoppers its tax auditors
Nota Fiscal Paulista gives consumers rebates and lottery tickets for receipts, so millions of shoppers police sales-tax evasion for the state.
São Paulo state government (SEFAZ-SP)
the move
Value-added tax is self-enforcing between firms, but breaks down at the final sale, where shoppers have no reason to ask for a receipt. São Paulo state's Nota Fiscal Paulista, launched in October 2007, paid consumers to fix that last mile.
Shoppers who give their ID on a receipt earn tax rebates and monthly lottery entries; shops must report receipts electronically, and buyers can check what was reported online and file complaints. By the end of 2011, 40 million consumers had asked for receipts and 13 million had online accounts.
The evaluation found retail reported revenue rose by at least 21% over four years; firms reported 7% more receipts and 3% more revenue after their first consumer complaint, and tax revenue net of rewards increased 9.3%.
why it works
- Consumers are everywhere a tax inspector cannot be, and they work for rebates.
- The lottery amplifies participation through the hope of winning, not just the rebate.
- The online verification channel turns every receipt into a whistle-blower opportunity.
- Compliance rose without detectable job losses or business exits.
what transfers
When you cannot watch every transaction, pay the person who is already there: customer self-interest beats an army of inspectors, and a lottery adds a behavioral kick beyond the cash.
what came after
Receipt-reward programs spread to other Brazilian states, and Naritomi's evaluation became a standard reference for consumer-based tax enforcement — a model developing countries continue to copy.
references
- Incentivizing consumers against tax evasion: Guest post by Joana Naritomi
- Consumers as Tax Auditors (Discussion Paper DP13276)
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