A merchant account is a type of financial account that enables a business to accept and process card payments (credit/debit) through a payment network, typically by working with an acquiring bank (acquirer) and a payment processor. In EV charging, a merchant account is used to collect payments for charging sessions via card terminals, contactless payments, in-app card payments, or payment links, and to settle the funds to the operator.
What Is a Merchant Account?
A merchant account sits in the payment flow between the customer’s card and the business’s bank account. When a driver pays, the transaction is:
– Authorized through the card network (e.g., Visa/Mastercard)
– Captured and processed by the payment processor/acquirer
– Settled to the merchant account (often with fees deducted)
– Paid out to the operator’s bank account on an agreed schedule
Merchant accounts also support chargeback handling, refunds, fraud controls, and reconciliation.
Why Merchant Accounts Matter in EV Charging
Payments are critical for public and semi-public charging. A merchant account enables:
– Direct revenue collection for CPOs and site operators
– Compliance with payment requirements for public charging (where card payment acceptance is mandated)
– Support for contactless charging payments and terminal-based user experiences
– Reduced reliance on roaming partners for billing
– Better control over pricing, refunds, and customer support workflows
For networks, merchant account configuration affects settlement timing, cash flow, and dispute management.
Where Merchant Accounts Are Used in Charging
– On-charger payment terminals (contactless EMV readers)
– Web payment pages and QR-based payment flows
– Mobile app payments for pay-as-you-go charging
– Fleet billing portals (card-on-file, centralized payment)
– Mixed models combining membership plans and ad-hoc card payments
Key Elements of a Merchant Account Setup
– Acquiring bank or payment processor contract
– Merchant identification (MID), legal entity, and KYC/KYB checks
– Settlement bank account and payout currency
– Fee model (percentage + fixed fee, terminal fees, cross-border fees)
– Chargeback and dispute rules
– Risk controls (fraud monitoring, velocity limits)
– Reporting and reconciliation tools
Merchant Account vs Payment Gateway vs Processor
Merchant account
– Holds and settles funds from card transactions to the business
Payment gateway
– Technology layer that securely transmits payment data and handles tokenization/checkout
Payment processor / acquirer
– Entity that processes transactions and connects to card networks, often bundling merchant account services
In EV charging, the CPMS or payment platform may integrate a gateway and processor, while the merchant account is the underlying settlement arrangement.
EV Charging-Specific Considerations
– Session-based billing: pre-authorization, partial captures, and final amount calculation
– Handling pricing components: €/kWh, session fees, idle fees, taxes (VAT)
– Multi-country deployments: local acquiring, currency conversion, cross-border fees
– Refunds and disputes: failed sessions, incomplete charging, terminal errors
– PCI compliance scope depending on terminal and system architecture
– Splitting revenue between site owner and operator (revenue share models)
Common Issues
– Declined transactions due to weak connectivity or incorrect terminal configuration
– Chargebacks from unclear pricing, failed sessions, or poor receipts
– Settlement delays affecting cash flow
– Complex reconciliation when roaming, memberships, and direct payments coexist
– Higher costs for cross-border cards or currency conversion
Related Glossary Terms
Payment processing
Contactless payment
EMV
Payment gateway
Chargeback protection
Tariff structure
CPO (Charge Point Operator)
CPMS
Roaming
Fiscal metering