The countdown has begun. The VeriFactu regulation will mark a turning point in the way Spanish companies manage their invoicing. Although the compliance deadlines have been extended, organisations that wait until the last minute will take on unnecessary risks: overloaded providers, lack of time for testing, incidents in production and delays in adapting their processes. According to the information published by the Spanish Tax Agency (AEAT), entities subject to Corporate Income Tax must have adapted their invoicing systems before 1 January 2027, while self-employed workers and other taxpayers must do so before 1 July 2027.

At Revertis we have spent years helping Spanish and international companies meet tax and electronic invoicing requirements, and we have developed a specific solution for Microsoft Dynamics 365 Business Central that makes it possible to tackle VeriFactu in a secure, integrated way, without changing the usual business processes.
What is VeriFactu and why should you start now?
VeriFactu is part of the Spanish Tax Agency’s strategy to guarantee the integrity, traceability and immutability of invoicing records. Companies will have to use systems capable of generating verifiable records and meeting the technical requirements defined by Spanish tax regulations.
Although the legal deadline may still seem far away, experience shows us that adaptation projects require:
- Analysis of current processes.
- Installation and configuration of the solution.
- Specific adaptations where there are customisations.
- User training.
- Functional and tax testing.
- A controlled go-live in production.
For this reason, at Revertis we recommend booking an implementation date as soon as possible, especially for companies with complex invoicing processes or highly customised Business Central environments.
VeriFactu built directly into Business Central
Our philosophy is simple: regulatory compliance should not force you to work with external applications or introduce parallel processes.

The Revertis VeriFactu solution for Dynamics 365 Business Central integrates natively into the ERP, so the system itself manages tax compliance without disrupting the organisation’s day-to-day operations.
Its main features include:
- Automatic submission of invoices to the Spanish Tax Agency.
- Management of corrective invoices and credit notes.
- Automatic generation of QR codes.
- Generation of XML files in line with the regulations.
- Traceability through digital fingerprints (hash).
- Separate TEST and PRODUCTION environments.
- Incident management and automatic retries.
- Full history of submissions and their status.
- Integration with the AEAT through secure web services.
All of this while keeping the familiar Microsoft Dynamics 365 Business Central experience and minimising the impact on end users.
More than a development: real experience in tax compliance
One of the main risks in a VeriFactu project is relying solely on software without a partner with proven experience in Spanish tax regulations.
At Revertis we have spent years implementing tax compliance solutions, especially projects related to the Immediate Supply of Information (SII) for companies in many sectors. This experience has given us first-hand knowledge of the challenges that arise during go-live, the Tax Agency’s validations and the need to ensure business continuity.
VeriFactu is a new step in the digital evolution of Spanish taxation. Having a team that has already supported many organisations in similar projects significantly reduces project risk and speeds up adoption.
Specialists in international groups and Spanish subsidiaries
Many companies operating in Spain are part of multinational groups and must reconcile Spanish tax requirements with the corporate policies set by their parent companies.
At Revertis we regularly work with Spanish branches of foreign companies, helping them adapt their Microsoft systems without losing alignment with the group’s global standards.
Our team combines functional, technical and regulatory knowledge to ensure that the adaptation to VeriFactu meets both the Tax Agency’s requirements and each organisation’s corporate governance needs.
Why it is not a good idea to wait
The extended deadlines do not remove the obligation. They simply give more time to carry out the project in an orderly way.

Companies that plan during 2026 will gain clear advantages:
- Greater availability of specialised resources.
- Enough time to run real tests.
- Lower risk of incidents in production.
- Gradual adaptation of users and processes.
- The ability to resolve business-specific particularities before the deadline.
As the compliance dates approach, demand for VeriFactu implementation and support services is expected to rise significantly.
Book your VeriFactu project now
If your organisation works with Microsoft Dynamics 365 Business Central, now is the right time to start planning.
The Revertis VeriFactu solution lets you comply with Spanish regulations while keeping control, traceability and operational stability in your invoicing processes. It is also backed by a team with extensive experience in tax projects, ERP integrations and deployments for Spanish and international companies.
Don’t wait until the last months of 2026. Book your analysis, implementation, testing and go-live date with Revertis as soon as possible to ensure a safe, smooth transition to VeriFactu. Contact us.






