Invoicing and Debtor Policy

GTS’s invoices consist of a cover sheet (PDF file) and a specification (XLS file). The PDF file is a summary showing the total amounts. The XLS file gives a detailed specification. The invoice specification always states the energy unit used; this is kWh by default for all invoice types unless otherwise specified.

We prepare these invoices at various times during the year. Most invoices, such as contracted, balancing, peak supply, exceeding, settlement, remaining volumes invoices, are issued every month.  Some invoices are only sent once or twice a year, these are the gas heating and reconciliation invoices.

You can find out more about billing periods under "When can you expect which invoice?".

If you want to know which services are billed for and through which invoices, you can find this information under "Which invoices are used for which services?". 

GTS has a digital invoicing system. You can retrieve invoices addressed to you via our customer portal Gasport. You can go back up to two years to find invoices in the customer portal.

You can view your invoices by logging in to Gasport, then selecting ‘Financial’ and then ‘Invoices’.

Then click on 'Invoices' in the left-hand menu, as shown in the image below. At the bottom left you can then enter a time period for which you would like to view your invoices.

You can set up an email alert on the system so that you will receive an email when a new invoice is ready for you on Gasport, you can do this by sending an email with the request ‘set up email alert’ to customerdesk@gastransport.nl.

You can check data on which invoices are based in Gasport and the various messages you receive when you are a B licence shipper will also provide invoice-related information.

We have set out below how to check invoices for each invoice type.

In Gasport, in the left-hand navigation section, select the time period relating to the invoice specification.

Invoicing is done according to our billing calendar schedule, invoices are created at set times and posted on Gasport. The calendar is shown below.

Key

  * Invoices are month of delivery + 4. All other invoices are month of delivery + 1
** Because of the 25th working day this invoice will be later than the regular scheduled month

 More information For any further queries and/or comments, you are also very welcome to contact the GTS Customer Desk via +31 (0)50 521 33 33 or customerdesk@gastransport.nl

All invoices created by GTS, based on the contractual obligation customers enter into with GTS, are posted on Gasport. Under ‘Invoices’ a summary is shown of all invoices and specifications; credit and debit invoices, outstanding and paid invoices:

Under ‘Financial’ -> ‘Accounts payable’ you will find a summary of all outstanding debit invoices without specifications (the corresponding specification can be found under ‘Invoices’):

A Multi Factor Account (MFA) is required to access Gasport for viewing and downloading invoices and specifications; you can apply for this account by using the online services application form found on our website. As well as requesting access, the form also has an option to request an email alert whenever new invoices are posted on Gasport. This email alert is for information only and no rights may be derived from it. 

All new invoices are payable within 14 days of the invoice date. If an invoice (or part of an invoice) still remains unpaid after a reminder, GTS will start a debt collection procedure. The costs of a debt collection procedure are payable by the customer.

Debits and credit amounts with the same due date are automatically set off against each other by GTS.

Credit amounts will not be paid out as long as there is a debit amount outstanding greater than the credit. If there are several outstanding invoices and a credit amount available for offset, it is possible to agree in advance how to settle the outstanding items. If you would like to arrange this with us, please contact our Customer Desk.

At the beginning of each month, interest will be calculated on all overdue invoices, this will be charged to you on a separate invoice and posted on Gasport.For more information about how interest is calculated, see article 5.12.3 of the TSC.

If you have any further questions about this process, please contact the Customer Desk during working hours.