India's digital payments engine shows no sign of slowing. UPI transactions grew 27% year-on-year to approximately 145 billion in H1 FY27 (April–September 2026), up from 114 billion in H1 FY26, according to NPCI data released on October 2, 2026. Transaction value rose 20% to roughly ₹177 lakh crore, versus ₹148 lakh crore in the same period last year.

September's monthly figures reveal an interesting nuance: transaction count dipped 1.7% month-on-month to 24.07 billion (from 24.5 billion in August), but the daily average actually climbed to around 802 million per day from 791 million — simply because September has fewer days. The growth trend remains firmly intact.

The headline development for businesses is the new merchant discount rate: a 0.4% MDR on merchant UPI payments above ₹2,000 takes effect on October 15. Peer-to-peer transfers remain free, and small merchants accepting up to ₹1 lakh per month via QR codes are exempt — a design meant to protect India's kirana economy while finally giving banks and payment firms a revenue stream on UPI.

UPI's global footprint is expanding too: it is now accepted in 11 countries, with Uzbekistan the latest addition.

For banks and payments firms, the twin signals are scale and monetisation: transaction volumes keep compounding at over 25% annually, while the October 15 MDR introduces the first meaningful revenue lever on merchant UPI — a model the industry will watch closely for its impact on small merchants and payment-infrastructure margins alike.

Why it matters for founders

If you're building in fintech or commerce, UPI at 802M transactions a day is the rails everything runs on — and the October 15 MDR change alters unit economics for every payments-adjacent business. Price your products around merchant UPI now, and watch how the 0.4% fee reshapes incentives for wallets, BNPL and card-push plays.