Payment gateway charges are the costs a business pays to accept and manage digital payments through a provider. The most visible cost is usually a percentage of each successful transaction, but the complete commercial picture can also include fixed fees, taxes, platform charges, international payment costs and optional services.
These charges pay for more than a checkout screen. A payment service connects the merchant to banks and payment networks, supports secure transaction messaging, provides reporting and may include aggregation, settlement, refund and risk-management operations. To compare providers fairly, businesses need to calculate the effective cost for their own payment mix.

Table of contents

• What do payment gateway charges include?
• Common types of payment gateway charges
• How are payment gateway transaction fees calculated?
• MDR, TDR and platform fee: what is the difference?
• What affects payment gateway pricing?
• How refunds, chargebacks and failed payments affect cost
• How to compare payment gateway charges
• How PayU can help
• FAQs

What do payment gateway charges include?

“Payment gateway fee” is often used as an umbrella term for the merchant’s payment-acceptance costs. However, a gateway is technically the infrastructure that routes a transaction without handling funds. The service bought by a merchant may also include payment aggregation, acquiring connections, checkout, dashboards, settlement and support.
That is why providers can use different labels for costs that appear similar. A business should look past the label and ask four questions about every line item:

1. What event triggers the charge?
2. Is it a percentage, fixed amount or recurring fee?
3. Which payment modes and transaction types does it cover?
4. Are taxes included or added separately?

The merchant agreement and current pricing schedule are more reliable than an old comparison article or sales screenshot. Pricing can change, and custom commercials may depend on volume, industry, risk and product requirements.

Common types of payment gateway charges

• Transaction or processing fee

This is commonly charged on each successful payment. It may be a percentage of the transaction amount, a fixed amount, or both. Rates can vary for domestic cards, international cards, net banking, wallets, EMI, BNPL and other modes.

• Setup, recurring and optional fees

Some providers charge to activate an account or for monthly access, while standard plans from others have no such fees. Custom integrations, faster settlement, advanced risk tools, recurring-payment capabilities or priority support may be separately priced.

• Payment-mode and international fees

Do not assume one rate applies to cards, UPI, net banking, wallets and international payments. Cross-border services can introduce higher processing rates or currency-conversion costs. Verify the currencies, conversion basis and deductions.

• Taxes

GST generally applies to the payment service fee, not as another percentage of the customer’s full purchase amount. The provider’s tax invoice and commercial schedule should show the applicable treatment. Businesses should confirm input-tax-credit handling with their tax adviser rather than relying on a general article.

How are payment gateway transaction fees calculated?

Suppose a provider charges 2% on a ₹1,000 successful transaction and 18% GST on its service fee.

• Transaction amount: ₹1,000
• Service fee at 2%: ₹20
• GST at 18% of ₹20: ₹3.60
• Total provider fee including GST: ₹23.60
• Amount before any other adjustments: ₹976.40

The effective cost is 2.36% of the transaction in this simplified example. It is not correct to calculate 18% GST on the full ₹1,000 as part of the gateway fee.
Settlement reports may include refunds, reversals or other adjustments. Reconcile at the transaction level rather than estimating deductions from the bank credit.
For a blended monthly estimate, use:
Total payment cost = transaction fees + fixed fees + recurring fees + taxes + optional service costs + dispute-related costs
Then divide total payment cost by successful payment value to calculate an effective rate. Run the model separately for each payment mode before combining them.

MDR, TDR and platform fee: what is the difference?

These terms are sometimes used inconsistently in commercial material.

• Merchant Discount Rate (MDR) generally refers to the merchant’s charge for accepting a digital payment.
• Transaction Discount Rate (TDR) is often used by providers as a commercial label for a transaction-based charge.
• Platform fee may describe the provider’s charge for its technology and services.
• Convenience fee usually refers to an amount charged to the payer at checkout rather than absorbed by the merchant.

The label does not determine whether a fee is permitted or how it should be disclosed. The RBI’s 2025 directions require payment aggregators to follow applicable MDR instructions and ensure that a merchant distinctly displays charges beyond the price of the product, service or investment to the payer before the transaction.
India has specific MDR rules for prescribed UPI and RuPay debit-card transactions. This does not by itself prove that every surrounding technology or value-added service is free. Ask for a written breakdown relevant to your setup.

What affects payment gateway pricing?

Key factors include payment mode, domestic or international use, volume, average order value, industry, fulfillment period, refund and dispute patterns, and fraud exposure. Settlement speed and product needs also matter. A simple hosted checkout can have different commercials from an enterprise integration with advanced reporting, recurring payments or dedicated support.

How refunds, chargebacks and failed payments affect cost

A refund returns money to the customer at the merchant’s request. Ask whether the original transaction fee is returned, retained or handled differently, and whether a separate refund fee applies. Also confirm partial-refund support and how GST adjustments appear.
A chargeback is a disputed transaction that may reverse the sale and involve a fee. Clear descriptions, delivery evidence and refund policies help businesses respond, but cannot eliminate disputes.
For failed or reversed payments, determine when the provider considers a transaction billable. A customer-facing failure can later resolve into a reversal, and a pending transaction may reach its final status after a delay. The commercial schedule should state which status triggers a charge.

How to compare payment gateway charges

1. Request the full schedule. Obtain mode-specific rates plus setup, recurring, refund, dispute, international and optional charges.
2. Model actual data. Apply percentage and fixed fees to a typical and peak month, then add recurring costs and GST on provider fees.
3. Include operations. Manual reconciliation, difficult refunds and weak support consume time.
4. Check reporting. Finance should be able to match deductions to transactions and tax invoices.
5. Compare like with like. Use the same modes, service levels and volumes, and confirm assumptions in the contract.

How PayU can help

PayU’s current pricing page lists a pay-as-you-use standard model: 2% for domestic Visa and Mastercard transactions, net banking, wallets and BNPL; and 3% for Diners, American Express, EMI and international transactions. The page states that 18% GST applies to the fees and that there is no setup fee. PayU also notes that it may change pricing and that custom pricing can be available based on business requirements.
Pricing, eligibility and payment-mode availability should always be confirmed before implementation. Businesses can use PayU’s payment gateway to accept multiple online payment modes and manage related operations through a unified merchant setup. For exact commercials, settlement terms and optional products, review the latest plan and merchant agreement.

FAQs

1. What is the average payment gateway charge in India?

There is no universal average that is reliable for every merchant. Charges vary by provider, payment mode, volume, industry, domestic or international use and optional services. Compare current written quotes using your transaction mix.

2. Is GST charged on the full transaction amount?

For the payment provider’s service, GST is generally calculated on the service fee rather than the full customer purchase amount. Check the provider’s tax invoice and ask a tax professional about your specific treatment.

3. Are setup and maintenance fees compulsory?

No. Some providers charge them, while others do not on standard plans. Custom integration, premium support or optional products may still have separate costs.

4. Are payment gateway charges refunded when a customer receives a refund?

Policies vary. A provider may retain the original transaction fee, return part of it or apply another commercial rule. Confirm this in the current pricing schedule and merchant agreement.

5. Can payment gateway charges be negotiated?

Some providers offer custom pricing based on volume, industry, risk and required products. A business has a stronger basis for negotiation when it can share accurate mode mix, order value, volume and chargeback data.

6. Is zero MDR the same as zero payment cost?

Not necessarily. MDR rules apply to specified payment instruments and transactions, while a provider may offer additional technology or value-added services under its commercial model. Ask for a written breakdown of every charge applicable to your setup.