Empowering Developers with Reliable Compliance Across Europe
Market selection
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 Portugal
Portugal’s fiscal regulations require businesses, POS developers and dealers to comply with evolving standards, including SAF-T, ATCUD and QR codes. fiskaltrust provides a standardized, automated middleware solution to simplify compliance, reduce complexity and ensure seamless integration with the Portuguese Tax Authority (AT – Autoridade Tributária e Aduaneira).
Our Services
Middleware Integration:
Our middleware integrates effortlessly with existing POS systems, automating tax reporting and ensuring compliance with SAF-T requirements.
Standardized API:
We provide a standardized API that facilitates seamless integration for POS developers, ensuring that all fiscalization features are compliant with Portuguese regulations.
Centralized Management:
For businesses operating in multiple locations, our solutions allow for centralized management of fiscal data, ensuring uniform tax data across all sites.
Automated Updates:
Our solutions include automated updates to reflect new tax laws and regulatory requirements, reducing the risk of non-compliance for end-users.
By partnering with fiskaltrust, businesses in Portugal can confidently manage the complexities of fiscalization compliance, keeping your operations fully aligned with all regulatory requirements.
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.
Contact Usfiskaltrust’s API
We offer a fully compliant SAF-T, ATCUD solution through our API, designed to integrate easily with POS, ERP and billing software. Our solution enables businesses in Portugal to meet Autoridade Tributária e Aduaneira requirements while maintaining smooth and uninterrupted operations.
fiskaltrust Academy – Empowering Compliance & Innovation
Master compliance, drive innovation – Start your learning journey today
fiskaltrust Academy





