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Simplify Crea y Crece Law compliance with our B2B eInvoicing API

Make your software Crea y Crece-ready with fiskaly SIGN ES, the API for seamless B2B eInvoicing compliance in Spain. Quick setup, secure integration, and automatic updates to keep your solution aligned with current and future regulations.

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Are you a software developer? Comply with B2B e-invoicing

The Crea y Crece Law makes B2B eInvoicing mandatory for all businesses in Spain. With fiskaly SIGN ES, compliance is no longer a challenge. Integrate it directly into your ERP, POS, or billing system in just one day. Our API updates automatically to match new requirements and includes expert support, so you can focus on growth while staying 100% compliant.

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No integration fees, no commitments, just compliance

Get started with fiskaly SIGN ES for free and see how one API keeps you aligned with TicketBAI, Verifactu, NaTicket, and Crea y Crece. Our flexible, scalable architecture lets you issue and sign eInvoices securely, all while meeting Spain’s legal standards effortlessly.

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over10 billiondigital signatures

active in1 MillionPOS

over97%satisfaction rate

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SIGN ES: B2B eInvoicing API benefits

Request a free demo

Quick and easy API integration

Implement B2B eInvoicing with clear documentation and direct tech support.

All major formats supported

UBL, Facturae, and other EU standards, ensuring seamless compatibility.

One integration, many regulations

Comply with TicketBAI, Verifactu, NaTicket, and the Anti-Fraud Law through a single API.

Certified for security and quality

The only API with ISO 27001 and ISO 9001 certifications for maximum trust.

Expand across Europe

Meet local compliance standards in multiple EU markets with one integration.

Try it for free

Test our sandbox environment. No costs, no commitments.

Ready to simplify compliance? Let’s talk!

We're here to simplify your company's fiscal compliance.
Always available to help with any questions and find the perfect solution.
Over 1,600 software companies already trust fiskaly. Book your free demo today!

FAQs Crea y Crece Law and B2B eInvoicing

Electronic Invoicing Highlights

4/2/20253 min read

Verifactu & Crea y Crece Law: latest updates that will transform invoicing in Spain

Invoicing in Spain is undergoing major changes with Verifactu and the Crea y Crece Law. Official enforcement dates are now set for businesses and freelancers. Learn how to adapt your invoicing systems, avoid penalties, and prepare for digital fiscal compliance in this article.

10/8/20255 min read

Europe's E-invoicing puzzle: What to know as new mandates go live

E-invoicing is no longer optional across Europe. With new mandates, formats, and country-specific rules taking effect, businesses must act fast to stay compliant. This article outlines ViDA’s goals, EN 16931 standards, and the critical timelines shaping the EU’s digital invoicing future.

10/3/20255 min read

5 surprising facts about the future of E-invoicing

E-invoicing is transforming compliance and business operations across Europe. From regulatory deadlines to new reporting models, the shift goes far beyond technical upgrades. In this article, we share 5 key insights that will help you prepare for what’s coming next and turn compliance challenges into strategic opportunities.