Sweden (SIGN SE)
SIGN SE - Swedish Fiscalization
Section titled “SIGN SE - Swedish Fiscalization”fiskaly provides the market-leading fiscal compliance solution for Sweden through InfraSec (acquired in late 2025). The InfraSec Tax Compliance System (TCS) is fully live and currently being integrated into the fiskaly Unified API.
InfraSec is the established leader for cloud fiscalization in Sweden. You can integrate the proven TCS API today to achieve full compliance with Swedish Tax Authority (Skatteverket) regulations.
Integration Overview
Section titled “Integration Overview”The Swedish Tax Compliance System (TCS) enables individual registers to obtain control codes for VAT receipts. It uses a secure, certificate-based XML API.
Key Features
Section titled “Key Features”SKV Compliant
Fully compliant with Swedish Tax Authority (Skatteverket) requirements.
X.509 Security
Secure communication using industry-standard mutual TLS authentication.
Cloud-Based
Proven cloud architecture handling millions of Swedish transactions.
Integration Steps
Section titled “Integration Steps”Follow these steps to integrate with the InfraSec TCS API:
Obtain Certificates
The TCS API requires X.509 certificates to identify and secure transactions. These identify either a single register, a server, or an entire organization.
Initialize Register
Use the
RegisterStatusAPI to ensure your POS register is successfully bound to the TCS. This must be sent every time the POS register starts.Process Transactions
Send
ControlDatarequests containing receipt VAT information. The TCS validates the data and returns a mandatory control code and control server ID.Print Receipts
Store the returned control code and print it on the receipt along with the register identity and server ID.
API Documentation
Section titled “API Documentation”While we work on the Unified API integration, the original InfraSec TCS API documentation is available for download:
InfraSec TCS API Description
Technical specifications for XML schemas, endpoint URLs, and request examples.
Download TCS API PDF
Technical Support
Section titled “Technical Support”Need help with your Swedish integration? Our specialized team is ready to assist you.
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