Merchant Account

A merchant account is a contractual and accounting arrangement between a business and an acquirer (an acquiring bank or a licensed payment institution) that allows the business to accept card payments. Card sales are recorded against the merchant account, fees and refunds are netted off, and the remaining money is paid out to the business's own business bank account, usually one or two business days later. Every business that takes Visa, Mastercard or similar cards relies on one, either in its own name or through a provider that holds one on its behalf.

Despite the name, a merchant account is not a deposit account the business can spend from. It sits between the four-party card model and the merchant's banking: the acquirer is responsible to the card schemes for the merchant's conduct, so opening one involves credit and compliance checks. It is identified by a merchant identification number and works alongside a payment gateway, which carries the transaction data, and a processor, which handles the messages.

Think of a market stall that lets customers run a tab with a trusted organiser. Each sale is written down with the organiser, who later collects from the shoppers' banks, takes a small cut and hands the stallholder the rest at the end of the week. Because the organiser could be stuck with the bill if goods are never delivered, they want to know who the stallholder is and may keep some money aside in case of complaints.

A merchant account is that arrangement for card payments. The acquirer records card sales for the business, collects the money through the card networks, subtracts its fees and pays the balance into the business's bank. In return it checks the business carefully and may hold back part of the money as protection.

When a customer pays, the transaction goes through authorization, then is captured and sent for clearing. The card networks move funds from the card issuer to the acquirer, which credits the merchant account and then pays out. Along the way the acquirer deducts the payment processing fee (made up of interchange, scheme fees and its own margin), refunds and chargebacks. Some acquirers settle gross and bill fees monthly; others settle net. Merchants match these payouts to their sales records through settlement reconciliation.

Because the acquirer bears the loss if a merchant disappears after taking payments for goods it never ships, opening a merchant account resembles a credit application. Underwriting looks at the business's identity and owners under know-your-business checks, its merchant category code, expected volumes, average ticket, delivery times, refund policy and past processing statements.

Riskier businesses, such as travel, subscriptions with free trials, online gambling or nutraceuticals, may be classed as a high-risk merchant and placed with a high-risk acquirer on stricter terms. Common protections include a rolling reserve (a percentage of each day's sales held for a set period, often months), a fixed reserve account, delayed payouts and volume caps. If an acquirer terminates a merchant for reasons such as excessive chargebacks, fraud or serious rule breaches, Mastercard rules require it to list the business on the MATCH (Member Alert to Control High-risk Merchants) database, where the listing stays for five years and makes it hard to open a new account elsewhere.

Businesses reach card acceptance in a few ways:

• Dedicated merchant account. The business contracts directly with an acquirer (often through an independent sales organisation) and gets its own MID, its own pricing such as interchange-plus pricing, and its own name on statements. Underwriting is slower, but terms can be negotiated.
• Aggregated or sub-merchant model. A payment facilitator or payment service provider holds a master merchant account and onboards small businesses as sub-merchants within minutes, usually at a flat blended rate. The provider carries the scheme responsibility and can freeze funds if it sees risk.
• Merchant of record model. A platform acting as merchant of record sells in its own name, so the underlying business never needs a merchant account at all.

Large merchants trading across countries often hold several merchant accounts in different regions to benefit from local acquiring, which can improve approval rates and lower cross-border fees.

A merchant account comes with ongoing duties set by the acquirer's agreement and network rules. The business must protect card data under the PCI DSS, use a recognisable billing descriptor, follow rules on refunds, surcharging and recurring billing, and keep fraud and dispute ratios below network monitoring thresholds. Breaches can lead to fines passed on by the acquirer, higher reserves or termination. In the US, acquirers that are banks follow federal anti-money-laundering rules when onboarding merchants; elsewhere, acquirers licensed as payment or e-money institutions carry similar duties under local law.

• Visa Core Rules and Visa Product and Service Rules
• Visa: Merchant support