SII
Introduction
What is SII?
SII is a VAT reporting system used in Spain. Whenever a payment is made for a reservation, various types of invoices are generated. These invoices must be submitted to the Spanish tax authorities for validation.
Depending on the scenario, such as changes in the reservation price or updates to the customer ID, different types of invoices are created to ensure compliance with SII requirements.
Conceptual flow
Below are the steps to generate the SII invoice:
Initial setup
Processing payment and down payment invoice verification for a reservation.
Initial setup
Prerequisites
The feature flag Enable invoice generation via Java must be enabled.
The Admin organisation with the relevant legislation enabled (SPAIN-SII) must be available. Additionally, it should not have a deferred ledger or a deferred journal already added.
The reservation corresponding to the configured Admin organisation should be available.
Access
Processing the payment for a reservation and verification of the invoices can be done in the Reservation Manager.
Configuration
Create a ledger
To create a ledger, follow these steps in the Finance Manager:
From the Configuration menu, select Ledgers.
Click on Create ledger. In the Create ledger widget, enter the details and select a relevant VAT.
Select valid details in the next steps and on the last step click Create ledger.
The newly created ledger is displayed in the list of ledgers.
Update Admin Organisation
To update an Admin organisation (AO), follow these steps in the Finance Manager:
From the Configuration menu, select Admin organisation.
Select the relevant AO. Click on the three dots at the top right corner to edit the AO.
On the Update admin organisation screen, select the Deferred ledger and Deferred journal from the drop-down. Also verify the legislation for the AO, it should ve SPAIN-SII.
Note: The Deferred ledger selected here is the one created previously.
Click on the Update admin organisation button.
Verification
Verify the down payment invoice
Navigate to the Reservation Manager.
Search for the reservation for the configured Admin organisation.
Make a partial payment for the reservation.
Navigate to the Finance tab. In the Invoices customer section, a down payment invoice is present.
Credit invoice
In scenarios where changes occur after a down payment invoice has been generated, such as a change in the customer ID or pricing, the original invoice becomes outdated and must be reverted. In such cases, a credit invoice is generated for the original down payment invoice.
The process for handling such changes involves the following steps:
Identify the Change: A change may occur in the reservation details, such as:
Customer ID update
Modification in pricing
Revert the original invoice: The system creates a credit note (credit invoice) for the existing down payment invoice, marking it as invalid.
Generate updated invoice: A new down payment invoice is issued with the correct, updated information.
These invoices can be generated manually by the user, or they can be automatically created by the system at a scheduled time each day.
Final invoice
A final invoice is generated only when the reservation is checked out. This invoice includes the entire amount for the reservation, consolidating all previous payments and adjustments.
Amending Invoice
If a reservation that has already been checked out is later checked in again, an amending invoice is generated.
This amending invoice invalidate the previously issued final invoice.
It retains the original invoice number and ensures that billing remains accurate based on the updated reservation status.
Events for SII invoice generation
Various events trigger the generation of invoices for SII. Refer to the below spreadsheet for such events and the corresponding invoices that are generated.
Conclusion
SII ensures that all reservation-related payments and changes are properly documented and reported to the Spanish tax authorities. By generating the appropriate invoice types for each scenario, the system helps maintain compliance and supports accurate VAT reporting.