Fiscal & POS Integration

Fiscal & POS Integration

GNXSoft builds the compliance middleware between Point of Sale infrastructure and national tax authorities. The platform processes millions of transactions daily: validated, cryptographically signed, and reported to regulators in real time.

The Challenge

Fiscal regulations differ by country, change frequently, and carry severe penalties for non-compliance. POS vendors focus on the sales workflow, not on the complex signing, reporting, and audit requirements mandated by tax authorities. The gap between what POS systems do and what governments require creates the single largest operational risk for multi-location retailers.

Cross-border operations multiply this complexity with different receipt formats, signing algorithms, reporting APIs, and audit requirements in every jurisdiction.

The GNXSoft Solution

Fiscal middleware that sits between the POS ecosystem and the national tax authority, handling every aspect of compliance automatically and transparently.

Deliverables

• Fiscal Device Integration Direct communication with fiscal printers (Datecs, Tremol, Daisy), fiscal modules, and SAM devices across all major protocols.
• Digital Receipt Signing Cryptographic signing of every transaction per national requirements with HSM integration for key management and tamper-proof audit trails.
• Tax Authority API Connectivity Real-time reporting to NRA (Bulgaria), HMRC (UK), and other national revenue systems with automated submission and error recovery.
• Multi-Jurisdiction Compliance Single POS, multiple countries. An abstraction layer that handles fiscal differences so business logic stays clean.
• Compliance Monitoring Real-time dashboards showing fiscal device status, transaction success rates, and compliance health across all locations.

Results

• 3M+ fiscal transactions processed monthly
• 100% compliance rate across all connected merchants
• Zero fiscal penalties for any client since deployment
• Fiscal device recovery time: under 30 seconds