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E-Commerce 3 min

Choosing a Payment Gateway: Fees, Setup and Integration

Virtual POS commission rates alone mislead you; compare installment costs, valor periods, and hidden fees before choosing a provider.

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Choosing a Payment Gateway: Fees, Setup and Integration

Skip the Bank, Weigh the Payment Institution

A bank's virtual POS is usually tied directly to your existing business account. Setup fees, annual charges, and terminal requirements come up. Contract terms are often long and cancellation is painful. Banks also tend to be less flexible on commission negotiation.

Payment institutions activate quickly with an online application and are more open to commission bargaining. But they may add fixed per-transaction fees, monthly subscriptions, or other extras. If you also need a physical POS terminal, a bank may offer a more integrated solution.

Installment Cost: Who Pays? You Do

Installment options attract customers but the cost falls on the merchant. Banks and payment institutions raise commission as the number of installments increases. Absorbing this difference without adjusting prices erodes profit. For low-margin products, offering installments is not rational.

Instead of asking who owns the installment cost, decide which installment plans to turn off. The commission for single payment versus 3 installments differs significantly. Some providers charge an extra fee per installment—make that clear in the contract.

Valor Period: How Fast Your Money Lands

Valor is the time between the customer's payment and the money reaching your account. With bank virtual POS, this can take one to two business days. Payment institutions sometimes transfer same-day, but that is not always guaranteed. Ask for a written valor commitment in the contract.

Valor directly affects your cash flow. Transactions made on weekends can extend the wait, and holiday periods make it even longer. For small businesses, even a one-day delay can disrupt supplier payments. Make valor period a key criterion when choosing a provider.

Refund Flow Is Not as One-Way as You Think

The refund process does not end with a single click. When a customer requests a refund, the provider reverses the transaction. However, the original commission is not always returned. Some institutions charge a fixed fee per refund, others keep part of the commission. Ask about this before signing.

Chargebacks are even more complex. With 3D Secure active, liability often shifts to the cardholder. Still, you may need to submit documentation, and the process can take weeks. Do not trust a provider without testing the refund flow, especially if you handle high-ticket transactions.

3D Secure: Security or Cart Abandonment?

3D Secure verifies the cardholder and significantly reduces fraud. But the extra authentication step can increase cart abandonment at the payment page. For high-value transactions, making it mandatory is sensible. For low-value micro-payments, it may cause conversion loss.

Some providers offer smart 3D settings; risk-based authentication triggers the extra step only for suspicious transactions. This balances security and conversion. If your cart abandonment is high, consider making 3D Secure optional—but be prepared to absorb chargeback risk.

Hidden Fees Beyond Commission: Subscriptions, Integration, Declines

Commission rate is not the only negotiation point. Subscription fees, integration costs, PCI compliance, declined transaction fees, refund fees, and virtual terminal charges can significantly increase total cost. Annual maintenance, support packages, and extra API calls may also appear.

A provider advertising a low commission might set high fixed per-transaction fees. Request a written list of all additional charges before signing. Calculate your monthly total cost using your own transaction volume, otherwise you'll face surprise deductions on the first statement.

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