To configure Comply for the Immediate Supply of Information (SII) regulation, please follow these steps:
Step 0. Configure the Fiscal Environment
To ensure proper configuration, you will need to select the following:
1. Scope of application
In this section, you must indicate the territory and tax conditions under which your company operates.
Select the following options:
Territory: Spain
Status: Not covered for any of the reasons specified in Articles 1.3, 3.3, and 5 of the Regulation
System: Subject to SII
2. Tax regime
Next, select the tax regime applicable to your company, according to Law 37/1992 on VAT.
This determines how VAT is calculated and reported for your transactions.
The most common option is the general regime, although there are special regimes (for example, for travel agencies or agricultural sectors).
3. Type of tax
Finally, indicate the type of tax that applies to your business activity:
VAT for mainland Spain and the Balearic Islands
IGIC in the Canary Islands
IPSI in Ceuta and Melilla
Step 1. SII Configuration
Complete the form with your company’s tax information.
Make sure to enter the details exactly as they appear in the official records of the Spanish Tax Agency (Agencia Tributaria).
Required information:
Company name (Legal name)
Tax Identification Number (NIF)
Full address: Street, number, building, floor, etc.
Postal code
City
Step 2. Activate Comply in Shopify POS
To allow the app to record your transactions in the Shopify POS channel, you need to enable the application. To do so:
Go to Sales channels > Point of Sale > Settings.
Open POS Apps.
Search for Comply POS UI Assistant.
Click Add in both the smart grid and additional POS areas.
To access it with a single click, press Activate the app.
⚠️ Important: Before proceeding, make sure your store’s tax settings are correctly configured.
Incorrect or incomplete tax setup may prevent Comply from properly reporting your sales to the tax authorities.
Step 3. Place a test order
To verify that the configuration is correct and that you have activated the application as instructed in Step 2, you must place a test order from the POS.
Create a test order in Shopify POS (it can be simulated with an amount greater than €0.00 — e.g., €1.00).
Comply will automatically verify that the sale has been properly recorded for tax purposes.
If everything is correct, you will see a confirmation screen.
If there is any error, we will provide you with instructions to resolve it.
With these three simple steps, Comply will be fully configured and ready to operate under the SII (Immediate Supply of Information) regime.
We recommend reviewing the following articles to better understand how to use Comply at the Point of Sale and how to manage your registered invoices from within the Shopify Admin.