RFID billing is the process of charging the correct person, organization, or account for an EV charging session that was started using RFID authentication. When a driver taps an RFID card or fob, the charging platform links the session to that RFID token and applies the right tariff, then records the transaction for invoicing, payment collection, or internal cost allocation.
RFID billing is widely used in public networks, workplaces, fleet depots, and multi-tenant residential sites because it provides reliable user identification without requiring an app for every session.
Why RFID Billing Matters
RFID billing enables:
– Accurate user-based charging in shared environments (employees, tenants, fleets, visitors)
– Simple access control plus traceable payment attribution
– Automated invoices and statements for recurring users and corporate accounts
– Revenue reporting by user group, site, and charger
– Reduced billing disputes because each session has a clear identifier
For semi-private locations, RFID billing is often the backbone of scalable operations.
How RFID Billing Works
A typical RFID billing flow includes:
– User taps RFID card on the charger’s reader
– Charger sends an authorization request via OCPP
– Backend checks which account the RFID token belongs to (customer, fleet, tenant, employee)
– The system applies the configured pricing rules:
– Per-kWh billing, per-minute billing, session fee, and/or idle fees
– The session is recorded with a charge detail record (CDR) including:
– RFID token ID, EVSE/connector ID, timestamps, energy (kWh), cost breakdown
– Payment is collected (direct payment, subscription, invoice) or cost is allocated internally
In roaming scenarios, RFID billing is often settled between providers via OCPI.
Common RFID Billing Models
RFID billing can be implemented in several commercial setups:
– Postpaid / invoice billing
– RFID linked to a customer account; sessions are billed monthly
– Common for fleets, workplaces, and multi-tenant residents
– Prepaid / wallet billing
– Sessions deduct balance from a prepaid account
– Useful where credit checks and invoicing are not desired
– Subscription billing
– RFID linked to a membership plan (discounted tariffs, free minutes, bundled kWh)
– Common in public networks with repeat users
– Hosted billing (cost recovery)
– Host bills tenants/employees at cost or with markup to recover energy and infrastructure costs
– Split billing
– Part billed to employer/fleet, part billed to driver (policy-based)
– Used for company cars and mixed-use charging rules
Key Configuration Elements for Correct RFID Billing
– Correct mapping of RFID token to the right customer or cost center
– Clear tariff logic: per kWh vs per minute, minimum fees, idle fees, time-of-day pricing
– Accurate metering and measurement of kWh delivered (especially where fiscal accuracy is required)
– Tax/VAT setup aligned with local regulations and invoicing rules
– Roaming token handling and partner settlement rules (if RFID supports roaming access)
Common Issues and Revenue Leakage Risks
– Token assigned to the wrong account or left active after employee/tenant changes
– Offline authorization starts sessions but billing records fail to sync correctly
– Tariff changes not applied consistently (pricing mismatch by charger or connector)
– Metering discrepancies between delivered and billed kWh
– Roaming CDR rejection or settlement mismatches
– Refunds caused by failed stops, incorrect idle fee application, or user confusion
When RFID Billing Is Most Useful
– Workplaces: employee access and monthly invoicing or internal chargebacks
– Fleets: per-vehicle/per-driver cost tracking and depot reporting
– Residential: tenant-level billing and transparent cost recovery
– Public charging: fast repeat-user access, membership pricing, and roaming support
Related Glossary Terms
RFID authentication
RFID reader
kWh-based billing
Per-minute billing
Idle fees
Charge detail records (CDRs)
Payment gateway integration
OCPI
OCPP
Revenue reporting