Online billing is now well established in many countries and its implementation is proving to be rapid and highly effective. In fact, the figures show that it is proving vital for the digitization of business networks. With electronic invoices , companies gain efficiency and comply with the legal requirements that are being introduced. But what is the current situation of electronic invoicing in Spain? What changes are expected by 2026? Below, we answer these questions and see how easyap can help you adapt to this transition.
What has changed in electronic invoicing in Spain up to 2026?
The adoption of electronic invoicing in Spain is following a gradual, but steady. Following the first regulatory milestones in previous years, 2025 marked the definitive turning point, and 2026 consolidates the model:
- In 2007, it was given legal validity with Law 56/2007.
- In 2015, B2G became mandatory.
- In 2018, it will also be mandatory for subcontractors with invoices exceeding €5,000.
- In 2022, the Create and Grow Act.
Today, electronic invoicing is already a mandatory standard in B2B commercial relations, regardless of the size of the company. This obligation is pushing organizations to thoroughly review their financial systems, ERPs, and accounts payable and receivable processes.
Therefore, for CFOs, the focus now is not on whether or not to implement electronic invoicing. Now, they have to worry directly about how to do so in a scalable, secure manner that complies with regulations in Spain and other countries.
Legal framework for electronic invoicing in Spain in 2026
The legal basis for electronic invoicing in Spain is the Create and Grow Law, officially Law 18/2022. It establishes its mandatory use in transactions between companies and professionals, with a phased schedule during 2024 and 2025.
Likewise, the regulations were created with two clear objectives:
- Promoting business digitization throughout the country.
- Combat late payments with greater transparency in transactions.
The reality is that by 2026, this framework will be fully operational and will be based on three main pillars:
- Generalized mandatory use of electronic invoicing in the B2B sector.
- Interoperability of billing systems, with special attention to structured formats.
- Transparency in payment terms, with full traceability of invoices.
In addition, the previous obligation to use electronic invoicing in dealings with public administrations (i.e., B2G), in force since 2013, remains in place.
The Spanish Tax Agency (AEAT) on electronic invoicing and tax control
In turn, in 2026, the Spanish Tax Agency (AEAT) consolidated electronic invoicing as one of its major tax control tools.
For their part, systems such as the Immediate Information Supply (SII) continue to evolve towards a model of near real-time supervision, which provides companies with:
- Consistency between invoicing, VAT, and accounting.
- Reduction of errors and tax discrepancies.
- Early detection of irregularities.
For companies, this means quality, traceability, and automation of information, in addition to being good practice, is also a critical compliance requirement.
Current benefits of electronic invoicing
Beyond regulatory compliance, electronic invoicing in Spain offers some very interesting advantages, especially for organizations with complex processes and structures. Among the most notable are:
- Automation of financial processes, without manual errors.
- Cash flow optimization with shorter and more transparent collection and payment cycles.
- Global financial visibility, especially important for multinationals.
- Reduction in operating costs by eliminating paper, reprocessing, and low-value tasks.
- Sustainability, aligned with ESG policies and corporate responsibility criteria.
Therefore, in 2026, electronic invoicing is conceived as a central part of the entire digital financial ecosystem.
Current challenges for electronic invoicing in Spain
Despite regulatory maturity, Spanish companies continue to face significant challenges, even though electronic invoicing brings benefits and is being implemented. Below, we list the most notable ones.
Technology integration
Corporate environments still have several ERPs and legacy systems. With the changes that have been taking place and this new legal framework, ensuring seamless and secure integration is becoming critical.
Multinational compliance
Many companies operate in several countries, each with different requirements. In fact, according to the INE, there are more than 6,100 national subsidiaries outside Spain. Therefore, these companies need solutions that adapt seamlessly to international contexts.
Cybersecurity and data protection
The volume and sensitivity of the information require working very high standards of security and data governance. Above all, considering that Spain, for example in 2025, was one of the most attacked countries in the world, with more than 45,000 cyberattacks per day.
Change management
The effective adoption of online invoicing in Spain still needs to be accompanied by training, internal consistency within each company, and a redesign of financial processes.
How can easyap help you with this transition?
In this scenario, easyap is a strategic ally for companies. We are a technology partner specializing in large international companies with complex environments. In other words, a partner for any organization that wants to adapt to the requirements of electronic invoicing. What's more, we do it quickly and efficiently.
With over 20 years of experience in developing financial management solutions, we design systems that comply with the current regulations in your sector and country or region. We adapt to the specific characteristics and requirements of each client.
Advantages of working with easyap:
- Guaranteed legal compliance. Our software is continuously updated to comply with regulations, including the Create and Grow Act and its future provisions.
- Integration with your tax systems. Easyap solutions synchronize invoices with the Spanish Tax Agency (AEAT) systems, facilitating tax control.
- Process automation. With our solution, you save time and resources that you can devote to other, more valuable administrative tasks. At the same time, you reduce manual errors.
- Flexibility and scalability. We design customized solutions based on the characteristics of each company, regardless of their sector or size.
- Expert support. Our team accompanies you throughout the entire process, from implementation to daily use of the system.
In fact, there are companies in the construction, distribution, and information technology that have already placed their trust in easyap to manage their digital invoicing. Our clients highlight both legal compliance and the time and cost savings associated with automation.
What does the future hold for digital invoicing?
The truth is that electronic invoicing in Spain continues its transformation process. Companies that have been able to anticipate this are now operating with greater efficiency, financial control, and legal certainty.
In any case, change is a challenge and an opportunity for:
- Modernize administrative processes.
- Improve your competitiveness in a digital and highly competitive market.
- Comply with tax and legal requirements in Spain and, specifically, in your sector.
Frequently asked questions about electronic invoicing in Spain
Will electronic invoicing be mandatory for all companies in Spain by 2026?
It will be implemented progressively between 2026 and 2027, with implementation independent of the size or sector of each company.
What format must an electronic invoice have in order to comply with Spanish regulations?
It must be a structured format that allows for automated processing and guarantees traceability, integrity, and authenticity.
How does electronic invoicing affect international business groups?
It requires the implementation and use of solutions capable of manage multiple regulations, currencies, languages, and tax integrations. Of course, while maintaining local compliance in Spain.
What are the risks of not complying with electronic invoicing regulations?
Financial penalties, tax issues, loss of financial traceability, and reputational risks. Specifically, penalties may be as follows:
- €50,000 per fiscal year for companies and self-employed individuals without approved software.
- Up to €1,000 for each transaction not correctly recorded.
- Up to €150,000 for non-approved software manufacturers.
At this point, easyap is the ideal partner to facilitate the transition with customized solutions. In addition to the advantages already mentioned, our software connects directly with the AEAT and offers you tailor-made features. If you want to prepare for the present and the immediate future of digital invoicing in Spain, contact us and get started today.
