This article is also available in:

Description of the System in Accordance with § 131 BAO – E131

E131 Documentation for the Shopify POS System

Note💡: This documentation describes the Shopify POS system and its functionality in relation to compliance with the Austrian Registrierkassensicherheitsverordnung (RKSV). The E131 documentation is provided by OpenFiskal, a fiscalization platform for POS systems that has developed a dedicated Shopify app to make Shopify POS compliant with the RKSV.

⚠️ Important: Shopify POS does not natively support RKSV. RKSV functionality is only activated through the installation of the app provided by OpenFiskal. Installation and configuration of this app are carried out by the retailer. OpenFiskal has no influence over correct installation or configuration. It is the responsibility of the retailer to ensure that all settings are properly configured.

1. General Information

POS System: Shopify POS
POS System Cloud Backend Provider: Shopify Inc.
RKSV Provider: OpenFiskal
Security Module (RKSV): Fiskaly cloud solution, certified by Fiskaly GmbH, Mariahilferstraße 36, 1070 Vienna, VAT ID: ATU73948115
Last Update: 08.09.2024

2. Functionality of the POS System

The Shopify POS system consists of an iPad-based POS system and a cloud-based backend for storing and processing data. The iPad serves as the transaction interface, while the cloud backend secures and logs all business transactions.

3. Security Module According to RKSV

The POS system, in combination with the OpenFiskal App for Shopify, uses a cloud-based security module (RKSV) from Fiskaly, which digitally signs all transactions in accordance with Austrian requirements. The security module is certified by Fiskaly and ensures data integrity and immutability.

4. Receipt Numbering and Signature

Every receipt is assigned a unique RKSV receipt number.
Every transaction is signed by Fiskaly, ensuring that receipts cannot be altered afterwards.

5. Logging and Fiscal Journal

All transactions are immutably stored in a journal (Data Capture Protocol 131) that can be exported via the Shopify app “Data Exporter – Tax Compliance.”
Cancelled or modified transactions are also recorded in the journal with a unique identifier.
Exports are typically made in CSV format and must be performed manually by the POS system user.

6. Offline Functionality

During offline phases, data is stored locally on the device. Once the internet connection is restored, transactions are synchronized with the cloud backend.
Unsigned transactions are signed retroactively by OpenFiskal daily at 11 p.m., provided the POS device has reconnected to the internet and synchronized with Shopify before that time.
If the Shopify POS app is uninstalled, all locally stored data is irreversibly lost, and no synchronization with the cloud backend takes place.

7. Control and Audits

Tax authorities may access data via the Shopify Admin area, which must be granted access by the retailer. All required reports and exports can be provided by the retailer.

8. Monthly and Annual Reports

OpenFiskal automatically generates the monthly and annual reports required by the RKSV and makes them available within the OpenFiskal App.

9. DEP7 Export

The Data Capture Protocol (DEP7) export can also be generated via the OpenFiskal App. This export contains all relevant transactions in a legally compliant JSON format, as required for audits by the tax authorities.

10. User Manuals

The complete Shopify user guide can be found at: help.shopify.com.
For additional support and information on the OpenFiskal App, refer to the OpenFiskal manual at: openfiskal.featurebase.app/help.

11. Protection Against Manipulation

All data captured by Shopify POS is protected against manipulation. Every transaction is signed via the Fiskaly cloud solution and recorded in the journal. This ensures that no transaction can be altered retroactively.

If a device is offline, transactions are synchronized and signed once the connection is restored, ensuring continuous compliance with manipulation security requirements.

👉 With these measures, the system fulfills the requirements of Cash Register Guideline 2012.

Updated on: 14/09/2025

Was this article helpful?

Thank you!