What is MDR?
Merchant Discount Rate (MDR) is the fee a merchant pays to accept a card payment. When you swipe, tap, or enter a card online, the shop does not receive the full bill amount—a cut goes to the payment stack that moves the money.
That cut is usually quoted as a percentage of the transaction. For many card payments it lands roughly in the 1% to 3% range, though the exact rate depends on the card type, network, and the merchant’s deal with their processor.
What MDR pays for
MDR is not one company’s tip jar. It is a bundle that funds the parties that make card payments work:
- Payment processor fee — for routing the payment (the company behind the POS or checkout).
- Interchange fee — paid toward the card-issuing bank.
- Assessment / network fee — charged by networks such as Visa, Mastercard, or RuPay.
- Markup and extras — processor margin, plus optional services like fraud tools or chargeback handling.
How an MDR-charged payment moves
- You pay with a credit or debit card at a shop or online checkout.
- The merchant’s POS or gateway sends the payment to a processor.
- The processor asks your card issuer to approve the spend.
- If approved, settlement follows—and the merchant receives the amount minus interchange and related fees.
- The merchant’s MDR covers that processing cost stack for the transaction.
How to calculate MDR
The simple formula is: MDR amount = transaction amount × MDR percentage.
Example: on a ₹5,000 bill at 2% MDR, the fee is ₹100. The merchant’s net from that card payment is ₹4,900 before other business costs.
Typical MDR ranges in India
Published processor ranges vary by method and network. Treat these as ballpark guides—not a quote for every shop:
| Payment method | Network / rail | Credit card (typical) | Debit card (typical) |
|---|---|---|---|
| Card payments | Visa | About 1%–3% | About 0.25%–1% |
| Card payments | Mastercard | About 1%–3% | About 0.25%–1% |
| Card payments | RuPay | About 1%–3% | About 0.25%–1% |
| UPI | UPI | About 0.25%–0.75%* | About 0.25%–0.75%* |
| Net banking | Various banks | About 0%–0.25% | About 0%–0.25% |
| Mobile wallets | Various providers | About 0%–1% | About 0%–1% |
*UPI pricing has its own regulatory and product rules; many everyday UPI person-to-merchant flows are cheaper for merchants than credit cards. That is a big reason shops nudge you toward UPI.
What changes the MDR a shop pays
| Factor | What usually happens | Shopper clue |
|---|---|---|
| Online vs in-store | Online often costs the merchant more (higher fraud risk) | Some sites push UPI or net banking harder at checkout |
| Credit vs debit vs UPI | Credit is often costlier for the merchant than debit or UPI | “UPI only / cards extra” culture in small shops |
| Business size & category | Bigger brands negotiate lower rates; some industries pay more | Acceptance and minimums differ by merchant type |
| Negotiated processor deals | Volume and partnerships can cut the percentage | Large platforms may accept more card types smoothly |
What MDR means when you are the customer
- You should not see a separate “MDR fee” added to your bill—RBI rules stop merchants from loading that cost onto the customer as an extra charge.
- Merchants can still prefer cheaper rails (often UPI), set card minimums in practice, or price goods knowing card acceptance has a cost.
- If a shop refuses a network, it is often an acceptance or cost decision—not a judgment on your card.
- Your rewards are partly funded from the same fee world. High-reward categories get capped when the bank’s share no longer covers the perk.
MDR vs related terms
| Term | Who it mainly affects | Why it shows up in card chat |
|---|---|---|
| MDR | Merchants (via their processor) | Why shops like UPI; why some add friction to cards |
| Interchange | Issuers (a slice inside the fee stack) | A key reason cashback/points can exist |
| MCC | How the merchant is categorised | Which reward rate your bank applies |
| Forex / DCC | You, on overseas spends | Separate from MDR—about currency conversion, not merchant acceptance fees |