A new study by the Indian School of Business warns that proposed 0.4% UPI transaction fees could drive small vendors away from digital payments. While the policy aims to exempt small receipts, high procurement costs are likely to trigger a return to cash. This poses a challenge for digital payment adoption and creates uncertainty for fintech firms reliant on transaction volumes.
A study released on November 4, 2026, by the Centre for Analytical Finance at the Indian School of Business (ISB) has raised concerns about the impact of proposed UPI transaction fees on the country's small merchant ecosystem. The research suggests that the introduction of a 0.4% Merchant Discount Rate (MDR) on transactions exceeding ₹2,000 could inadvertently reverse the shift toward digital payments.
While the current regulatory proposal aims to protect small businesses by exempting merchants who receive less than ₹1 lakh in monthly digital payments, the ISB study points to a structural blind spot in the policy. The researchers found that roughly 70% of street vendors regularly make individual supplier payments that exceed ₹2,000. Because these B2B or procurement transactions do not benefit from the retail-level exemptions, they would attract the proposed fee. As a result, many small merchants may find that the cost of digital procurement outweighs the convenience of electronic payments, forcing them to pivot back to physical cash to protect their thin profit margins.
The findings highlight a significant gap in sentiment and awareness. The survey indicates that between 45% and 53% of vendors across various city tiers would consider reducing or stopping their acceptance of UPI if these charges are implemented. Furthermore, the report notes that confusion persists in Tier 2 and Tier 3 cities, where many small shopkeepers incorrectly believe that all incoming payments, regardless of size, will be taxed. This uncertainty, combined with reports of suppliers already passing on extra fees for digital payments, suggests that the digital ecosystem could face significant resistance.
The National Payments Corporation of India (NPCI) had originally scheduled a rollout for these charges in mid-October 2026, but the decision was deferred following pushback from industry groups. For investors in the fintech space, this ongoing uncertainty is a key factor to track. Companies that provide digital payment infrastructure often rely on transaction volumes and take-rates on MDR to drive revenue. If a significant portion of the small-merchant segment shifts back to cash or reduces UPI usage, it could impact the transaction volumes that these platforms process, potentially leading to volatility in their business performance.
Going forward, the most important development for market participants will be the final notification regarding the fee structure from the NPCI. Investors may monitor whether regulators introduce further exemptions for procurement-related payments or refine the transaction threshold to mitigate the burden on small vendors. Additionally, tracking the actual behavior of merchants in response to the eventual rollout will be crucial in determining whether the policy affects the long-term growth of India's digital payment adoption or if the ecosystem is resilient enough to absorb the costs.