India’s digital payments ecosystem continues to grow in 2025-2026, supported by strong adoption of UPI and other electronic payment systems. According to the Reserve Bank of India (RBI) Payment Systems Report (H2 CY 2025), UPI accounted for 85.5% of total digital payment transaction volume in India.

As digital transactions increase, payment gateways have become an essential part of online business operations. They help process payments smoothly across customers and merchants. While most businesses focus on visible transaction fees, several additional costs remain hidden in onboarding and settlement processes. These charges can impact overall profitability if not tracked carefully.

Let’s look at five hidden payment gateway fees every business should understand before signing up.

Hidden payment gateway charges that can increase your business costs 

Many businesses focus only on transaction fees while choosing a payment gateway, often overlooking additional hidden costs. Understanding these charges in advance can help businesses avoid unexpected expenses and protect long-term profitability.

1. Setup and integration charges

Many payment gateways present onboarding as simple and seamless, but additional setup or integration charges are often not highlighted upfront. These costs are usually applied during the technical configuration and activation of the payment system.

The actual charge depends on factors such as platform complexity, required payment methods and the level of technical support needed during integration.

For small businesses and early-stage startups, these charges can impact initial budgeting if not planned in advance. It is important to confirm whether the setup is included as part of the service or applied separately within the agreement before proceeding with integration.

1. Annual Maintenance Charges (AMC)

Once you are live, many payment gateways continue charging for the privilege of staying live. Annual maintenance costs cover ongoing support, upgrades and security.

On the surface, that sounds manageable. But AMC fees are often tiered, meaning they increase as your transaction volumes grow or as you unlock additional features. Some providers also charge monthly maintenance fees on top of per-transaction rates, which compounds quickly for high-volume merchants.

Always request a full breakdown of recurring charges, not just the MDR percentage advertised on the homepage.

1. Chargeback fees

Chargebacks happen when a customer disputes a transaction with their bank. The bank reverses the payment and the merchant is left without the money and often without the product too. What most merchants do not realise is that the payment gateway also charges a fee for managing that dispute.

Chargeback fees carry per-dispute costs and penalty charges when ratios exceed thresholds. Beyond published transaction fees, enterprises face high hidden costs from chargebacks and compliance that can add 1 to 2% to total processing costs.

These hidden costs can quietly erode profitability, especially when refund and chargeback rates are high or the business offers diverse payment methods.

For businesses in categories like electronics, fashion or travel, where disputes are more frequent, chargeback fees deserve serious attention before selecting a payment gateway.

1. Faster settlement surcharges

Most payment gateways in India follow standard settlement cycles such as T+1 or T+2, where funds are credited one to two working days after a transaction. This delay can affect cash flow for businesses managing daily expenses like inventory, salaries, or operations.

To receive funds faster, merchants can choose instant or faster settlement options. These services provide quicker access to money but come with additional charges from payment gateways.

Same-day settlements are usually offered at a premium fee. While convenient, this becomes an extra cost for accessing your own revenue earlier. Businesses should include these charges in their overall cost planning.

1. GST on MDR and card-based pricing differences 

Merchants often assume refunds are fully neutral, but payment costs remain layered. Merchant Discount Rate (MDR) varies by payment method and card type. Premium credit cards usually attract higher MDR charges compared to standard debit or basic credit cards, increasing transaction costs for the same sale value.

Even during refunds, some payment gateways may still apply processing or reversal fees, which add to cost exposure.

On top of this, 18% GST is charged on MDR. While GST-registered businesses may claim input credit, others may not track it correctly. Over time, card-based MDR differences and GST can reduce profit margins if not monitored closely.

What to check before you sign up

Before choosing a payment gateway, it is important to understand the full pricing structure in detail. Businesses should review setup and integration costs, ongoing maintenance charges, refund processing fees, chargeback dispute expenses, settlement-related charges and applicable taxes. These elements are often not given enough attention during onboarding but can affect overall costs over time.

Payment gateways like Pine Labs Online are often used as examples of platforms that present pricing components and operational terms in a more structured way. This helps businesses evaluate how different charges apply across transactions and settlements without confusion during usage.

In many cases, the total cost is not determined by the visible transaction fee alone, but by the additional charges that become noticeable once the system is actively in use.