How to Accept UPI Payments in India

India runs on UPI. The Unified Payments Interface has become the backbone of the country's digital economy, and for any merchant selling to Indian consumers it is the default — the method most buyers expect to see first. This guide explains how UPI works for merchants, the economics that make it unusual, and how to accept it.

What UPI is

UPI is a real-time, account-to-account payment system built on top of the banking network and governed by the National Payments Corporation of India (NPCI). A customer links their bank account to a UPI app — PhonePe, Google Pay, Paytm, BHIM and others — and pays by scanning a QR code, tapping a payment link, or approving a "collect" request. Funds move from their bank account to yours instantly.

There is no card, no plastic, and no card network in the flow. For the shopper it is fast and free; for the merchant it is a domestic rail with very different economics from international cards.

The scale that makes UPI unavoidable

UPI's numbers are in a category of their own. In May 2026 it processed about 23.2 billion transactions worth roughly ₹29.9 trillion in a single month — an all-time high. It accounted for about 85.5% of India's digital payment transaction volume in the second half of 2025, and by ACI Worldwide's global count it represents close to half of all real-time payment transactions on earth. Person-to-merchant payments now make up well over half of UPI volume.

For a merchant, the takeaway is blunt: in India, UPI is not a segment of buyers. It is the buyers.

The zero-MDR economics

Here is what surprises merchants from card-first markets. UPI person-to-merchant transactions currently carry zero merchant-discount-rate (MDR) — you generally do not pay a percentage fee to accept them, a policy the government reaffirmed through 2025. That makes UPI extraordinarily cheap to accept compared with cards.

The flip side is that there is no interchange to fund rewards or aggressive acquiring incentives, and policy debates about reintroducing MDR for large merchants do surface periodically. Plan your pricing and provider relationship on the assumption that UPI acceptance is low-cost today, while keeping an eye on regulatory signals.

Recurring payments: UPI Autopay and mandates

For subscriptions and repeat billing, UPI supports mandates (often branded UPI Autopay): the customer authorizes recurring debits up to a set limit, and you collect automatically on schedule. This is essential for SaaS, streaming, EMIs and any membership model. If you bill recurrently in India, implement UPI Autopay rather than asking customers to re-approve each cycle.

Newer capabilities worth knowing

UPI keeps expanding, and two developments are relevant to merchants:

• RuPay credit cards on UPI let customers pay from a credit line by scanning the same QR. NPCI adjusted the fee structure for these credit transactions in 2026, so credit-on-UPI is increasingly a real consideration for higher-value carts.
• UPI Circle allows a primary account holder to delegate spending to a secondary user. You do not need to do anything special to accept it — if you accept UPI, you accept UPI Circle.

There is also a growing international footprint: UPI acceptance has been enabled in several countries including the UAE, Singapore, France, Nepal, Bhutan, Sri Lanka, Mauritius and Qatar, which matters if you serve Indian travelers abroad.

How to start accepting UPI

You accept UPI through a payment provider or gateway rather than connecting to NPCI yourself. A typical setup includes:

1. Dynamic QR codes generated per order, and intent links that open the customer's UPI app pre-filled.
2. Collect requests that push a payment prompt to a customer's registered UPI ID.
3. Real-time confirmation webhooks so you can release orders instantly.
4. UPI Autopay mandates for recurring billing.
5. Reconciliation that matches each UPI reference to an order.

Because India is rarely the only market a global merchant cares about, the practical move is to enable UPI through the same layer you use elsewhere. With a platform like PiqPay, UPI sits alongside cards, wallets and other regional methods behind one integration and one dashboard, so you can launch India quickly and reconcile it the same way as every other market.

Practical checklist

• Make UPI the first, most prominent option for Indian buyers.
• Offer both QR/intent and collect flows to suit different users.
• Confirm payments in real time; never make UPI buyers wait.
• Use UPI Autopay for anything recurring.
• Consider RuPay credit on UPI for higher-value categories.
• Localize pricing in rupees and present UPI app logos buyers recognize.

UPI is the cheapest, fastest and most expected way to get paid in India. Treat it as the centerpiece of your Indian checkout, not a checkbox.

Ready to go live with UPI through one API? Talk to PiqPay about India.