3 min read
Fakturia Team

B2B E-Invoicing vs. VeriFactu: Key Differences Explained

Both regulations are key to Spain's tax digitalization, but they're not the same. We explain the differences between B2B e-invoicing and the VeriFactu system.

Spain's tax landscape is undergoing a major digital transformation, bringing two terms that often cause confusion: B2B electronic invoicing and the VeriFactu system. Although both aim to modernize billing, they stem from different laws and have distinct goals. Understanding their differences is crucial for freelancers and SMEs to prepare without stress.

What is B2B E-Invoicing? (The 'Crea y Crece' Law)

The mandatory electronic invoice for business-to-business (B2B) transactions comes from the 'Crea y Crece' Law. Its main objective is to combat late payments and improve transparency in commercial dealings.

* Focus: The communication between a supplier and their client.

* Requirement: It mandates that invoices be issued and received in a structured electronic format (like Facturae) that allows for automatic processing. This isn't just a PDF, but a file with standardized data.

* How it works: It involves interoperability between different billing platforms through a public solution and private operators. The goal is that, no matter what software you use, you can send an invoice to your client, and they can receive and integrate it into their system.

* Deadlines: While the final regulations are still pending as of September 2026, a phased implementation based on company size is expected. You can find more details in our guide on Electronic Invoicing for Freelancers in Spain.

What is the VeriFactu System? (The Anti-Fraud Law)

VeriFactu, on the other hand, is an invoice verification system derived from the Anti-Fraud Law. Its purpose is to prevent tax fraud and the use of dual-use accounting software.

* Focus: The communication between your billing system and the Spanish Tax Agency (AEAT).

* Requirement: It requires the use of billing software that meets specific technical standards for integrity and inalterability. Every invoice generated must include a QR code and the text "VeriFactu", and a billing record must be sent to the AEAT.

* How it works: It doesn't focus on how you send the invoice to your client, but on ensuring that every invoice you issue is recorded securely and cannot be altered.

* Mandatory Deadlines: The deadlines are set and approaching quickly. As we explain in our guide on the VeriFactu 2027: Deadlines for Freelancers in Spain, the key dates are:

* January 1, 2027: Mandatory for all companies.

* July 1, 2027: Mandatory for freelancers and micro-businesses.

Preparing Your Business for the Dual Transition

The conclusion is clear: most businesses will need to comply with both regulations. Your software will not only have to be VeriFactu compliant but also capable of issuing structured e-invoices to your business clients.

The biggest challenge is technological adaptation. Developers will need a robust VeriFactu API, while SMEs will look for seamless VeriFactu ERP integration. Many professionals are wondering how they will import Factusol to VeriFactu, or how to migrate from tools like Sage 50 or Holded. Even those currently using spreadsheets are looking for ways to import Excel to VeriFactu. A VeriFactu gateway for software becomes an essential component for this transition.

In short, while B2B e-invoicing standardizes the *exchange* of invoices, VeriFactu ensures the *integrity* of your records for the Tax Agency.

To face this dual change with confidence, it is essential to have a cutting-edge billing program. At Fakturia.es, our software is designed to comply with the Anti-Fraud Law and the VeriFactu system, and is ready for B2B e-invoicing, ensuring your business always stays up-to-date with regulations.

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