Why do you need aVerifactu API?
The Anti-Fraud Law 11/2021, effective from 2025, outlines the technical requirements for the new anti-fraud software and VeriFactu. By July of 2025, billing software will be required to meet compliance standards.
Comply Verifactu, TBAI & B2B e-invoice
Connected to the AEAT in production
Advanced electronic signature
Premium technical support
over6 billiontransactions
more than600kPOS operated
over97%satisfaction rate
Features of SIGN ES Verifactu API
One integration, multiple legislations
By integrating a single API, scale your software across regions and comply with TicketBAI, Anti-Fraud Law, and Crea y Crece Law without extra development.
Forget about errors and rejected files
SIGN ES validates invoices before submission, avoiding Tax Agency’s rejections from the first invoice. Convenient and error-free.
Digital signature and submission
Sign, chain, and send XML files to the national Tax Authorities in real time, 100% securely, even before mandatory compliance starts.
1-click data export & batch transmission
Filter and export invoices with 1 click or send them in batches using one endpoint. Lower network load, higher performance for ERPs and POS systems.
Integrated digital certificate
Your clients don’t need their own certificate. We handle it all via our Social Collaboration agreement with AEAT, fully secure and simplified.
Offline incident management
If Internet goes down, your software keeps working: we detect the issue, let you generate XML + QR, and auto-resend when reconnected, no penalties.
Try the Verifactu API for free: book a call
- We're here to help with any questions and find the perfect solution.
- Over 800 companies trust our fiscalization solutions. We've got you covered!
FAQ about Anti-Fraud Law and VeriFactu systems
Download the guide: Verifactu for software vendors in Spain 2025
Get ahead of the competition and turn fiscal compliance into an advantage with a comprehensive guide about Verifactu. Get to learn in detail about:
- What the Antifraud Law and the Verifactu systems are
- Who is affected and the implications of the law for software developers
- How to avoid penalties for non-compliance
- Technical requirements and how to adapt your software seamlessly
- Verifactu API: what is it and how to integrate it into your software
Verifactu Highlights
All blog posts
Everything you need to know about Tax Compliance in Spain for 2025
What is Verifactu?: Frequently Asked Questions for Software Developers
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