What happens in case of internet connection issues?

Consejo

Last updated on 2025-06-16.

Connection to the Tax Authority is lost

As long as you are connected to SIGN ES, you do not need to worry. In case of connection loss to the Spanish Tax Authority server, SIGN ES implements an availability check of the TicketBAI/Verifactu service. The transmission of TicketBAI/Verifactu Files will continue automatically as soon as the service connection is restored.

 

If you lose connection to fiskaly

In case of internet connection problems on the POS system, the Spanish Tax Authorities have established a series of indications to follow. These guidelines vary by Province in the Basque Country.

For Verifactu, you can check the specific requirements in our article on connection loss.