UPI and QR codes are replacing the kirana shop’s change-and-candy jar

What's going on here?

On 20 October 2026, a long-form business essay revisited how India’s person-to-merchant payments changed neighbourhood retail. For decades, kirana owners kept jars of candies to settle bills when they lacked coins. Customers without exact change would buy less, take informal credit, or accept sweets instead of rupees. Card acceptance required paperwork, terminal rentals, patchy connectivity, and merchant fees that made little sense on a ₹20 tea sale. The essay pointed to static QR codes, which took off around 2015, as the unlock: a printed code linked to the shopkeeper’s bank account, readable by any UPI app. Tea sellers, vegetable vendors, and small workshops could display one code and receive instant bank transfers without a dedicated device. UPI’s subsequent decade of growth made that workflow normal in cities and towns.

What does this mean?

Consumer behaviour shifted because the friction moved from the buyer to the network. Shoppers no longer need exact cash; merchants no longer run to the bank with bags of notes each evening. The piece argued that today’s argument over merchant discount rates on UPI should be read against that history: many micro-merchants joined because cash was expensive, not because subsidies were generous. If policymakers reintroduce fees, the question is whether small sellers revert partially to cash or absorb costs through higher sticker prices.

Why should I care?

If you run a small shop, compare total cost of cash handling, missed sales from change shortages, and any new UPI charges before switching back to notes. Households budgeting festive spends should remember that digital trails make informal credit harder, which can be good for discipline or bad for flexibility. Investors in payments and quick-commerce should watch NPCI volume data, any MDR rule changes, and whether rural kirana adoption keeps climbing after the candy-jar era ends.