EV charging payments that don't stall your network.
i4B builds payment and invoicing software for charge point operators, terminal providers and finance teams: card payments at the charger, in-app payments, tariffs, CDR-based billing and real-time finance reporting, connected to the systems you already run.
Why charging payments get harder as you grow
Disconnected terminals, clunky backends and patchy reporting make payments harder than they should be, for drivers and for the people who reconcile the money.
The terminal doesn't talk to the CSMS
A card is charged, but the session, the tariff and the receipt live in different systems. Every mismatch becomes a support ticket.
One tariff, three different prices
The app, the charger display and the invoice calculate differently. Drivers notice, and so does your finance team.
Reports finance can't trust
Revenue arrives late, per payment provider, in different formats. Reconciling it by hand eats days every month.
Every market adds a rule
Ad-hoc payment requirements, VAT, currencies and invoicing formats change per country. Hard-coded flows don't keep up.
One connected flow from the charger to the books
Payment and invoicing software built for e-mobility, covering the whole journey rather than a single step.
Ad-hoc payments at the charger
Payment terminal integration with your CSMS and charger software: pre-authorisation, capture at session end and receipts, without an app or account.
In-app and web payments
Saved cards and payment provider integration in your driver app or web portal, with the session and the payment always matched.
RFID and account billing
B2B and fleet accounts with RFID authorisation tied to the customer, billed per period instead of per session.
Tariffs and pricing
Per kWh, per minute, time-of-use, session and idle fees, kept in sync between the charger, the app and the invoice.
Invoicing and ERP integration
From CDR to invoice: session data mapped to your ERP and invoicing system, including roaming CDRs from partner networks.
Real-time finance reporting
Revenue per site, operator and payment method as it happens, so reconciliation is a check, not a project.
Inside the platforms that charge Europe's EVs.
What stands out most is the combination of technical expertise and an understanding of the business context of the project. i4B did not approach the cooperation only as a set of IT tasks to complete but tried to understand why certain solutions were needed and what they meant from our perspective.
Payments inside real charging platforms
Payment and billing work i4B has delivered as part of charging software in production.
Integrated payments on the charger
Custom OCPP firmware for AC and DC chargers with kiosk-mode screens, integrated payments and idle-time monetisation.
CSMS connected to ERP and invoicing
Sessions, CDRs and tariffs from AMPECO synced with a B2B operator's ERP pricing engine and invoicing, with RFID authorisation tied to customer accounts.
CDRs from partner networks
CDR processing for Hubject, OCPI and ENAPI roaming, so sessions on other networks reach billing like your own.
CSMS and eMSP with a full back office
A white-label CSMS and eMSP platform with a mobile app, back office and Hubject integration, including tariffs and billing.
We deliver the whole platform end to end: driver app, roaming, tariffs and billing.
Payments built with your finance team, not around it
Map the money flow
Payment methods, providers, tariffs, markets and who reconciles what, agreed before development starts.
Build
Payment flows, tariff engine and integrations, built by a dedicated team in 1-2 week sprints.
Integrate
Terminals, payment providers, CSMS, ERP and invoicing connected and tested end to end.
Go live
Staged rollout with monitoring of payments, failed captures and invoice exports.
Run and evolve
New markets, tariffs and payment providers added by the team that built the flow.
Built for everyone who touches the money
Charge point operators
Adding card payments at the charger or cleaning up billing across sites.
Payment terminal providers
Connecting your terminals to charger software and CSMS platforms.
E-mobility service providers
Running in-app payments, subscriptions and roaming billing.
Finance teams
Who need revenue, invoices and reconciliation they can trust.
Tell us how your payments work today
A 30-minute introductory call about your payment and billing needs. We'll look at your setup together and suggest what to build, what to connect and what to keep as it is.
Frequently asked questions
Which payment methods can an EV charging network support?
Typically three: ad-hoc card payments at the charger, in-app or web payments, and RFID or account-based billing for B2B and fleet customers. We build and connect all three to the same tariffs and reporting.
Can you connect a payment terminal to our CSMS?
Yes. We integrate payment terminals with charger software and the CSMS so pre-authorisation, session, capture and receipt are handled as one flow.
Do you help with ad-hoc payment requirements for new chargers?
Yes. We build ad-hoc card payment flows that let drivers pay without an app or contract, which operators need to meet regulatory requirements for new public chargers in the EU.
Which tariff models can you support?
Per kWh, per minute, time-of-use, session fees and idle fees, and combinations of them, kept consistent between the charger, the app and the invoice.
Can you integrate charging data with our ERP and invoicing?
Yes. We map sessions and CDRs, including roaming CDRs from partner networks, to your ERP and invoicing system. We have done this for operators running AMPECO among others.
How do you work with us commercially?
Three ways: consulting and project discovery, a dedicated development team, or full project delivery at a fixed price or on time and materials.