Verifactu effective date. Enforcement deadlines in 2025 and 2027 and key dates. We clarify doubts about deadlines and dates, postponements and announcements.

Unlike similar systems in other regions, Verifactu extends the obligation beyond tax obligors. Under Verifactu, in addition to taxpayers, there are entities that must comply with the regulation even before the tax obligors themselves: the computerized invoicing software (SIF).
Therefore, when explaining the effective dates of Verifactu, it is necessary to distinguish between computerized invoicing software on one hand, and tax obligors on the other.
Below, we share the key effective dates for Verifactu:
If you are a taxpayer, the key deadline for you will be 2027. That year, you must ensure that the invoices you issue comply with the Verifactu system.
In many cases, compliance will happen naturally and without any effort on the part of the taxpayer. This will be the case when the tax obligor uses a computerized invoicing software that, by legal obligation, will guarantee compliance for that user.
In other cases, however, the taxpayer will need to make an effort to comply with the mandatory deadlines during 2027. A good example would be companies with custom proprietary software. Companies in this situation must ensure that their software integrates correctly with Verifactu, carrying out the necessary developments and changes.
For those taxpayers who require a development effort before the mandatory deadline in 2027, there are two options:
Developers facing the challenge of integrating their software with Verifactu before the mandatory date in 2025 or 2027 should consider the following timelines:
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