MDR on Refunds: What Are the Real Payment Gateway Refund Charges?

In Indian e-commerce, where fashion, electronics, and D2C brands face returns, reversing a customer payment costs far more than just losing the inventory for those days and the cost of bearing two-way logistics expenses.

When a customer pays for an order, your payment provider may deduct a Merchant Discount Rate (MDR), the percentage fee charged for processing electronic transactions across card networks, netbanking rails, digital wallets, and applicable UPI transactions. The rate and fee type depend on the payment method and your plan.

On your settlement report, you receive the order value minus applicable fees and GST on those fees.

Then the customer cancels the order or returns the product. You initiate a full refund of the purchase price back to their source account.

This triggers the single most common point of friction between finance controllers and payment aggregators: when you return the money to the customer, do you get an MDR refund from the payment gateway? In many cases, the original fee on a captured transaction is retained, but whether it is refunded depends on your provider and agreement.

If you do not account for payment gateway refund charges in your unit economics, your financial models may understate costs. Here’s how transaction reversals work in India, what they actually cost your business, and how to stop refund mechanics from wrecking your profitability.

Is MDR Refunded After a Customer Refund in India?

Many gateways retain the MDR fee charged on a captured transaction, but terms vary by provider, method and contract. Whether a customer cancels an order thirty seconds after checkout, returns a damaged item two weeks later, or if it’s a return-to-origin (RTO), check whether the original fee is credited under your agreement. An authorisation voided before capture is different from a completed payment.

Merchants often assume that because a sale was undone, the processing fee attached to that sale should be reversed too. We understand the confusion here. Merchants often consider MDR as a commission on the completed sale, which it isn’t.

To understand why MDR on captured transactions is often retained, look at the first principles of payment infrastructure.

Why the Original Processing Fee May Remain

MDR is a utility fee for moving data and money securely across financial rails.

When a customer makes a payment, several infrastructure layers take responsibility to ensure a payment from the customer reaches the business account.

• The Issuing Bank: Tasked with verifying the customer’s identity, checking available credit or account balances, running two-factor authentication (AFA), and authorising the funds to be transferred to the merchant.
• The Card Network or Switch (Visa, Mastercard, RuPay, NPCI): The relevant organisation routes the payment across participating institutions.
• The Acquiring Bank: The acquiring bank helps receive and settle the funds.
• The Payment Gateway: Another important layer in the entire process, the payment gateway provides the checkout interface, runs real-time fraud monitoring sequences, tokenises the payment instrument, and orchestrates the API calls.

Those services were used when the original transaction was captured.

Now if the customer asks for a refund after five days, reversing this payment cannot undo the original backend service work. In fact, initiating a refund requires the gateway, the acquiring bank, and the issuing bank to run a second set of API calls and ledger adjustments to push the funds back.

The cost of the original processing cannot simply be undone. There is no blanket RBI prohibition on a gateway refunding MDR; the provider’s terms determine whether you receive a fee credit.

Once a payment is captured, budget for that fee unless your contract provides a credit.

What Payment Gateway Refund Charges Might Apply?

When founders complain about the high payment gateway refund charges, this can include three separate financial events: the original fee, any new reversal fee, and possible dispute charges.

When you open your monthly reconciliation sheet, you need to separate what you lose from what you pay.

Original MDR and the GST Ledger

When a transaction of ₹10,000 is processed at a 2% MDR, the gateway deducts ₹200 as the fee and ₹36 as 18% GST on that fee. You settle ₹9,764 into your bank account.

When the customer demands a full refund, the customer must receive the full ₹10,000 back. If those fees are retained, you must account for the ₹236 difference between the gross refund and net settlement.

Finance teams frequently get tripped up on the tax treatment here. They confuse the GST on the product sale with the GST on the payment processing fee. When you refund a customer for a returned product, you issue a credit note and adjust your output GST liability for the goods sold.

Where the processing fee is retained, the GST invoiced on that fee generally remains a separate item in your books.

The silver lining for your tax ledger? Eligible registered merchants with a valid tax invoice may be able to claim Input Tax Credit (ITC) on that ₹36 GST amount in their GSTR-3B filings, subject to the applicable conditions.

The MDR itself is a dead loss on your P&L, but the GST attached to it may be claimable as an input credit if your business qualifies.

Also read: How to choose a payment gateway and compare its charges

Is There a Separate Refund Transaction Fee?

When initiating refunds, there may be additional charges to be paid, but some standard, merchant-initiated refunds do not attract a new refund transaction fee just to process the reversal through the original source rail.

If a customer paid via a credit card or netbanking and can wait the standard 5 to 7 business days for the banking clearing cycle to credit their account, check your provider agreement and pricing to see whether an additional refund fee applies.

An additional fee can also apply if you opt for premium instant refunds, which offer faster processing through a supported method instead of a standard source reversal.

Customer-Initiated Chargebacks and Dispute Fees

There is a difference between merchant-initiated refunds and customer-initiated chargebacks.

Chargebacks are when the customer, instead of going to the merchant, goes directly to the bank asking for a refund. A merchant-initiated refund is a voluntary operational action you trigger via your gateway dashboard or API.

A chargeback occurs when an impatient or dissatisfied customer bypasses your support team entirely, calls their issuing bank, and files a formal dispute claiming fraud, non-delivery, or unfulfilled service refunds.

As a merchant, you want to resolve refund complaints before they turn into disputes. If you lose a chargeback, you may face several costs:

• The disputed amount may be debited from your settlement pool.
• The original MDR and GST may remain payable under your terms.
• A separate chargeback dispute fee may apply under your contract.

The total outflow depends on the dispute amount and your fee schedule. Slow, opaque refund processes can contribute to avoidable chargebacks.

UPI MDR on Refunds: Check the 2026 Rollout Status

For years, Indian merchants treated UPI as a completely free ride on both forward transactions and returns. The proposed UPI MDR changes have been postponed.

The proposed 0.4% MDR on eligible Person-to-Merchant (P2M) UPI transactions above ₹2,000, capped at ₹300, did not start on 15 October 2026. Its rollout was postponed until after Diwali, with no confirmed replacement date as of 22 October 2026. Check the rollout report before publication.

If you sell electronics, luxury apparel, travel bookings, or B2B supplies where your Average Order Value (AOV) sits above ₹2,000, model this as a future scenario rather than a current MDR charge. Confirm how refunds will be treated when final rules take effect.

Second, even on UPI transactions under ₹2,000 where statutory MDR remains 0%, some payment gateways may charge platform fees (or infrastructure routing fees, convenience fees, and VAS charges) to cover cloud uptime, webhook delivery, and bank switch load balancing.

Platform fees are not MDR, and their refund treatment depends on your contract. Whether you pay a flat per-transaction routing fee or a bundled enterprise SaaS tier, check whether any infrastructure charge on a successful UPI capture is credited when you refund the buyer.

How to Calculate MDR and Refund Costs for an Order

If a full refund leaves the original fee in place and no separate refund fee applies, the immediate fee-related difference follows this formula:

Fee-related cash difference = (Transaction amount × applicable fee rate) + GST on the fee

Note that while the 18% GST represents an immediate deduction from your settlement or refund wallet, eligible registered businesses may offset it via ITC later.

However, for strict working-capital cash burn calculations, you must track both the pre-ITC cash outflow and the post-ITC net P&L hit.

Let’s look at how this plays out across three illustrative Indian e-commerce scenarios:

Order scenario and payment mode	Order value	Fee rate	Original fee	GST on fee	Net settled	Customer refund	Immediate difference	Fee cost if ITC eligible
Scenario A: Mid-Ticket Apparel (Credit Card)	₹5,000	2.00%	₹100.00	₹18.00	₹4,882.00	₹5,000	₹118.00	₹100.00
Scenario B: High-Ticket Electronics (Corporate/Premium Card)	₹10,000	2.50%	₹250.00	₹45.00	₹9,705.00	₹10,000	₹295.00	₹250.00
Scenario C: High-Value D2C Order (proposed UPI P2M rule, not yet in force)	₹10,000	0.40% illustrative	₹40.00	₹7.20	₹9,952.80	₹10,000	₹47.20	₹40.00

Assumptions: full refund, original fee retained, no separate refund fee or settlement adjustment. The last column assumes ITC eligibility. Scenario C is a future illustration, not a current UPI fee.

Also read: Online refunds and customer credit timelines

The Partial Refund Margin Trap

In addition to complete refunds, there are partial refunds to consider, which are even more deceptive.

Suppose a customer places a single cart order for ₹10,000 containing two items worth ₹5,000 each, paying via a standard credit card at 2.0% MDR (₹200 MDR + ₹36 GST).

Upon delivery, they keep one item and return the other, triggering a ₹5,000 partial refund.

If the payment gateway does not refund half of the original MDR, your business retains ₹5,000 in gross revenue, but you still bear the entire ₹200 MDR from the original ₹10,000 capture.

What did that just do to your unit economics? Your effective MDR on the ₹5,000 revenue you actually kept just doubled from 2.0% to 4.0%. If your net operating margin on that product is 12%, the ₹200 fee equals a third of ₹600 in pre-fee profit on the retained item.

Also read: Payment disputes and how they differ from refunds

How Cashfree Supports Refunds and Reconciliation

Whether the fee is credited follows your provider agreement, not a blanket banking prohibition. When your finance heads migrate their payment stack to Cashfree Payments, don’t expect a magic wand that erases network fees. Instead, what you get is refund tracking, fund flow visibility, and ledger records.

Here is how Cashfree supports tracking during the refund lifecycle:

1. Funding Refunds and Tracking the Balance

With Cashfree Payments, refund funding and adjustments depend on your configured account and available balance.

This means you can track outbound refund outflows separately from inbound revenue.

• Your incoming customer collections settle into your bank account on schedule.
• Your finance team tracks the balance or settlement adjustments specifically used for returns.

2. Refund Processing and Customer Credit Timelines

Standard source refunds across legacy banking switches take 5 to 7 business days to reflect on a customer’s bank statement.

A customer waiting six days for ₹8,000 to return to their account may:

• Contact your brand on social media
• Open repeat support tickets
• Call their bank to file a dispute.

If a delayed refund escalates into a bank chargeback, a dispute fee may apply under your agreement on top of any retained processing fee.

Cashfree’s refund guide says it processes most refunds (90%) instantly, but that is distinct from the time a customer sees the credit.

Furthermore, for Cash on Delivery (COD) returns or failed source reversals, Cashfree’s Instant Refunds documentation currently describes a paid instant option for UPI. Confirm eligibility and customer credit timing before making a promise.

Fast refunds and clear status updates can reduce avoidable confusion and disputes.

3. Refund Ledger Reconciliation

Cashfree’s dashboard and settlement records help you review relevant line items on your revenue statement. The relevant records help you match:

• The original gross capture amount
• The applicable fee rate and rupee deduction
• GST on that fee
• The refund ID, timestamp, available bank reference, and applicable balance movement.

Whether your operations team triggers single partial refunds from the dashboard or your ERP fires thousands of automated refund webhooks via API, your finance team gets complete and updated information about these refunds and your final revenue.

How to Protect Margins from Refund Costs

MDR retained on captured payments is a cost to model, subject to your provider terms. But you don’t also have to accept and absorb this cost blindly and make changes in your business model around these inevitable costs.

Model a Refund Fee Buffer in Pricing

Assume your historical return rate on prepaid orders is 20%, and the blended MDR across cards and UPI is 1.5%.

20% returns means every one in five orders is returned, and to cover the sunk costs of one return, you need to build a buffer into the product price.

Here’s the formula:

Illustrative pricing buffer % = [Return rate ÷ (1 − return rate)] × blended fee rate

At a 20% return rate and 1.5% blended MDR, adding just 0.38% to your base retail price across your catalogue would offset the assumed retained fees on fully refunded orders. It does not cover logistics, separate refund fees or partial returns.

Offer Store Credit or Exchanges Where Appropriate

Instead of refunding into the customer’s bank account using the original payment mode, where the customer consents and your policy allows, you can either incentivise the customer to add that money to the store wallet or ask for size or variant exchanges.

You could offer an additional ₹100 or 5% in store credit if it fits the return policy. This may avoid a cash refund now, but it does not recover the original MDR; the store credit remains a customer obligation.

Review Return Handling Charges

Some businesses charge for non-defective returns when this is disclosed clearly and permitted by applicable consumer rules.

Such a return handling charge may offset part of the cost; disclose it before purchase and do not present it as a gateway fee.

Conclusion

Payment gateways often retain the MDR on a captured transaction, subject to your agreement. The banking switches, card networks, and fraud engines that moved your customer’s money executed their jobs the exact millisecond that payment was captured.

Treating payment gateway refund charges as an unexpected surprise on your monthly P&L is a strategic blind spot.

Protecting your profitability requires treating returns as a controllable financial workflow rather than an inevitable write-off. You may not be able to eliminate fees on captured orders, but you can reduce operational confusion, settlement blind spots, and avoidable disputes around routine returns.

Cashfree Payments can help your team track refunds and reconcile post-purchase payment records.

With refund status tracking and reconciliation records, we simplify the refunds process, ensuring it doesn’t become a burden on your finances and your team.

FAQs

Is MDR refunded when a customer gets a refund?

It depends on the payment provider, method and merchant agreement. The original fee is often retained after a captured payment is refunded. Check your fee schedule for any credit or exception.

Do payment gateways charge a separate fee to process refunds?

Some do, particularly for faster refund options. Check your agreement for standard refund charges, instant refund charges and any chargeback fees. Cashfree displays applicable instant refund charges in its refund flow.

What happens to the processing fee on a partial refund?

The original fee may still be based on the full captured payment, even though you keep only part of the sale. Check whether your provider credits any portion of that fee, then reconcile the original payment, refund and retained amount separately.