Understand your gas invoice

We know how confusing it can be but understanding the make-up of your invoice is important if you want to know where your money is going or would like to switch suppliers.

1. Your supplier
This section displays: Company Logo, Address and Tax ID of your current Energy supplier.

2. Invoice Details (Datos de la factura)
Your bill information will be displayed, generally including:
– Invoice number: tax identification of issued bill.
– Reference number: A code for internal use of the supply company.
– Invoice issue date: The date of the bill being issued.
– Billing period: The interval date in which the invoice has calculated the charge.
– Payment due date: The date period in which you can expect the charge to be taken or should be paid.

3. Postal address details
The name and address details of where the invoice may be sent if paper billing and correspondence is required. These may differ to the actual supply address of the property and the actual contract holder.

4. Invoice summary and payment details (Resumen de la factura y datos de pago)
This section generally displays an overview and summary of the total of your bill including the consumption, power capacity charge, meter rental and applied government taxes. It may also include your payment method and some of the direct debit details.

5. Your Gas Consumption Summary (Información del consumo)
This may display your current and previous meter readings along with the consumption during the billing period. You may also find a graphics report showing the consumption history for the past 12 months.

6. Additional information
There could be information provided about your consumption habits, upcoming promotions, saving tips and other relevant information that some suppliers pass on to their clients.

7. Contract Details (Datos del Contrato)
This section contains the main details and specifics of the contract holder and supply. This includes:
– Contract holder or Titular del contrato. The name of the person registered as the contract holder.
– Contract holder ID or NIF. (NIF, NIE or Passport number). The ID registered with the contract holder.
– Supply address or Direccion de suministro. The registered address for the supply. This may differ from the postal address of the property, but this is the address registered with the distributor.
– Contracted product, rate plan or producto contratado.
– Universal Supply Point Code (USPC) or Código Universal del Punto de Suministro (CUPS). This is a unique code that identifies your supply point address. It is headed by the sequence “ES” followed by 20 characters, numbers and letters. You will need to provide this should you have any inquiries regarding your bill, contract or importantly, switch providers.
– Meter number or numero de Contador. This is used by the distributor.
– Supply company or su comercializadora. The name of your energy supply company.
– Access contract reference or referencia del contrato de acceso is an internal contract number with distributor. 
– Access toll or peaje (tarifas) de acceso, is displayed as a number that relates to your contracted gas capacity: 3.1 or 3.2.
– End of supply contract or fin del contrato de suministro is the end date of your contract. This is also the start date for the auto renewal of your contract with your energy supply company.

8. Invoice Breakdown (Detalle de la factura)
This section will display the breakdown of the invoice and includes:
– Contracted gas capacity or termino fijo gas. The cost per day for the contracted gas capacity charge.
– Gas consumption or termino energia gas. The cost in €/Kwh and amount of gas consumed in Kwh with total price. 
– Discounts or additional service charges.
– Meter rental or alquiler de equipos gas. The small cost for the rental of the meter.
– Hydrocarbon tax or impuesto HC general. A tax charged to all gas customers.
– VAT or IVA/ IGIC. The tax as established by the government.
– Total invoice amount or total importe factura. The total invoice amount to be paid.

9, 10, etc. Extra general information
You may have sections for special notifications or contact phone numbers.

Please note that design features will vary for each energy supplier, however by law the same information will be shown. As an example, and for visual purposes only we have used an invoice template from Endesa. Some suppliers temporarily remove certain details for security purposes.

More Questions?

If you have any questions about our service or about the energy market in Spain, read our guides.

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