Empowering Developers with Reliable Compliance Across Europe
Integration Partners
Build once, deploy everywhere. fiskaltrust empowers POS developers with powerful open-source middleware, modular APIs and expert-led onboarding to ensure seamless fiscalization compliance across Europe.
fiskaltrust’s Middleware offers a robust, flexible, and cost-effective solution for businesses seeking compliance with diverse fiscal regulations across Europe. Its standardized interface, multi-platform support, and open-source transparency make sure that businesses can focus on their main tasks while ensuring legal compliance, thereby providing peace of mind and operational efficiency.
fiskaltrust's solutions for Germany
In Germany, the Kassensicherungsverordnung (KassenSichV) and §146a of the German Fiscal Code (AO) require that all point-of-sale (POS) systems securely record transaction data using a certified Technical Security Device (TSE). These measures are designed to ensure data integrity, support auditability and prevent tax evasion.
Key Requirements of KassenSichV:
- Individual Transaction Logging: Each cash and electronic transaction must be recorded individually in a tamper-proof and audit-safe format using a certified TSE.
- Receipt Issuance Obligation (Belegausgabepflicht): A receipt must be generated and offered to the customer for every transaction processed through the POS system. The receipt must include a digital signature generated by the TSE.
- TSE and POS Registration (Kassenmeldepflicht): Businesses are required to register each POS system and its corresponding TSE with the German tax authority via Elster. This can be done manually, guided, or fully automated through solutions like fiskaltrust’s Notification Service.
- Secure Data Storage: All transaction data must be stored in a revision-safe and tamper-proof way using hash chaining. The data must be made available in DSFinV-K and TAR format for audits by tax and customs authorities.
- Applicability: These obligations apply to all businesses operating electronic or digital POS systems in Germany, regardless of revenue thresholds.
Key Benefits for Developers
- Standardized API: Easy integration of fiscalization without adding complexity.
- Vendor Independence: Supports multiple TSE providers—no vendor lock-in.
- Regulatory Compliance: Adheres to KassenSichV and §146a AO without changing core POS logic.
- Future-Proof: Automatic updates to stay compliant with legal changes.
- Developer Support: Access to docs, examples, and tools for DSFinV-K, TAR and Elster.
Integration with the fiskaltrust Middleware API
POS developers can integrate with fiskaltrust Middleware by implementing a single standardized API that handles all interactions with certified Technical Security Devices (TSEs). This removes the need to build and maintain separate fiscalization logic for each TSE vendor.
- Supports both local and cloud-based setups, allowing flexible deployment based on your system architecture.
- Compatible with multiple certified TSE providers, minimizing hardware-specific development.
- Standardized data handling ensures alignment between POS transaction data and required audit exports (DSFinV-K, TAR), supporting full compliance with German fiscal law.
Compliance Automation
Once integrated, the middleware:
- Captures and processes transaction data from the POS system in line with KassenSichV and §146a requirements.
- Generates legally compliant receipts, including TSE-generated signatures, VAT details, payment methods and all mandatory fields.
- Validates and logs transactions in a tamper-proof format for audit and export (DSFinV-K, TAR).
Continuous EU-Wide Compliance
fiskaltrust continuously monitors changes in German tax regulations and updates the middleware accordingly, ensuring ongoing compliance without POS software modifications.
- As fiscal laws evolve, fiskaltrust adds support for new compliance rules as soon as they are enacted.
- Updates are deployed centrally via the middleware, meaning developers don’t need to manually adjust their applications.
- Middleware enhancements and compliance updates are delivered with minimal disruption to business operations, keeping systems running smoothly.
Stable API. Open source. Audit-proof receipts. No vendor lock-in.
API
Modular API Design & Scalable
fiskaltrust APIs are based on a service-oriented architecture, enabling integration at multiple layers.
The fiskaltrust APIs plug straight into our open-source Middleware, taking care of signing, receipt chaining and export logic so you don’t have to. With both HTTP(S) and gRPC support, they fit cleanly into any architecture whether this is cloud-native or on-prem. Everything’s audit-proof by design and the PosDealer API lets you automate onboarding and deployments at scale.
Modular API Design & Scalable
- POS System API: Receipts, payments, digital export
- Receipt API: Create and manage digital receipts
- PosDealer API: Automate onboarding and deployment for POS dealers
Open-Source
Open-Source fiskaltrust Middleware
Leverage fiskaltrust's robust, open-source middleware to integrate fiscalization compliance into your POS solutions across Europe.
The fiskaltrust open-source middleware solution designed to streamline fiscalization compliance, digital receipts, payments and secure data archiving. It connects Point-of-Sale systems with local legal requirements through a harmonized API and offers scalability and flexibility across Europe’s diverse fiscal environments.
Why fiskaltrust Open-Source?
- Seamless POS API Integration (REST/SOAP/JSON)
- Auto-updating to comply with new regulations
- Multi-country fiscalization logic
- Modular architecture (Queue, SCU, Helpers)
- Secure and auditable transaction signing
- Transparent, fully documented code
Why Middleware Matters –
Simplify Compliance with fiskaltrust
Simplify Compliance with fiskaltrust Freemium
fiskaltrust
Middleware
Mangement
- Portal
- CloudAPI
- Self-Hosting
Compliance
- Open-Source
- Receipt Chaining & Signing
- Local Journal
- Local Data Export
Receipt
- Open-Source
- Cloud based, interactive
visualization of receipt - InStore-App
Payment
- Open-Source
- Cloud based Terminal Gateway
fiskaltrust Academy – Empowering Compliance & Innovation
Academy
fiskaltrust Academy
The fiskaltrust Academy equips businesses, developers, and partners with the knowledge and skills to navigate fiscalization effortlessly.
fiskaltrust Academy – a structured training and onboarding program designed to help POS creators and integration partners easy implement fiskaltrust.Middleware while ensuring compliance with fiscal regulations across Europe.
Sometimes it’s easier to just talk.
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