Spain's tax agency adopts Israeli digital forensics software

Spain's tax agency turns to Israeli digital forensics software

The Spanish Tax Agency (Agencia Tributaria) has adopted Pathfinder, a digital forensics tool developed by Israeli firm Cellebrite, according to Expansión. The software, originally used by Israeli police units such as Lahav 433 and the domestic security service Shin Bet, can process large volumes of data, cross-reference information between investigations and analyse social media posts. The news has raised concern among taxpayers who have long been warning of a tougher tax authority.

What Pathfinder is and why the tax agency wants it

Pathfinder is not your average tax management program. It is a digital forensics tool that, once information extracted from devices and platforms has been dumped in, applies artificial intelligence algorithms to establish patterns and detect anomalies. The tax agency has purchased licences for four specific applications, according to the business daily. With them, the authority could map personal and corporate relationships between taxpayers, detect specific jargon and classify large amounts of documents.

The most worrying potential lies in data cross-referencing. The tool allows information to be compared across different investigations, which in practice means that an inspection peine over a minor matter can become the gateway to a much broader sweep. Social media is one of the areas where this technology could operate most easily, analysing taxpayers' posts.

The origins of the software now watching taxpayers

Cellebrite was not born to chase tax fraud. Its first clients were the Israeli police unit Lahav 433, the domestic security service Shin Bet and the special tactics unit known as the Gideonites. In other words, software designed for national security environments, not for tax administrations. That detail, which Expansión highlights, is what has set off all the alarms.

The question hanging in the air is how far the tax agency can go with such a tool. In the tax field, cross-referencing data between investigations and analysing social media opens up a range that until now seemed reserved for intelligence services. The line between pursuing fraud and spying on taxpayers becomes, at the very least, blurred.

Taxpayers' frustration: inspections that change the accusation

While some debate the technical potential, others have brought up their own experiences. One taxpayer recounts receiving a proposed tax assessment over an inheritance in which a presumed donation was identified. He provided bank documentation showing there had been no transfers between heirs. The tax agency's response was to change the grounds: they now identified an excess of adjudication. The case illustrates a practice some describe as "accuse of A, be proven wrong, and convict for B".

That kind of situation fuels the sense that the tax authority operates with a revenue-driven rather than rights-protecting logic. The adoption of Pathfinder adds a technological layer to that frustration. It is no longer just about questionable legal interpretations, but about the capacity to process massive amounts of information with AI algorithms.

The double standard critics denounce

One of the most frequently repeated arguments holds that the Tax Agency does not apply the same diligence to everyone. Critics argue that while the net tightens around the average taxpayer, cases such as that of the Spanish prime minister's brother or Begoña Gómez move forward slowly. The judge investigating the wealth increase of Sánchez's brother has had to demand that the tax agency justify its scrutiny of the shareholdings, something the authority would not have done on its own.

In parallel, it is pointed out that the tax agency does not intend to join the proceedings over Zapatero's jewels, and that the AEAT (Spanish tax collection agency) peine and immediately suspended inspections of the former prime minister to shield the statute of limitations, according to Gestha. The sense of a double standard is reinforced by the dismissal of the inspector investigating the Zapatero network, replaced by someone who allegedly turned a blind eye to his front man.

The hydrocarbon fraud precedent

A recurring comment sums up the paradox: the AEAT has spent years spending millions on statistical analysis tools, dashboards and alerts by geographic area, sector and company size. And yet it missed a hydrocarbon fraud that, according to a circulating estimate, would approach or exceed 1,000 million euros. Technology alone does not guarantee results. It depends on who uses it and with what priorities.

That argument introduces an important nuance. Having the capacity to process data is not the same as having the will to pursue certain crimes. AI can detect patterns, but the decision of whom to investigate remains human. And that is where suspicions about white lists and preferential treatment come in.

Surveillance of the individual: from science fiction to routine

Beyond this specific case, there is a deeper concern that goes beyond the tax agency. The spread of AI could enable state control of individuals at levels that a decade ago seemed like science fiction. Facial recognition at train stations and airports, under the banner of counter-terrorism security, would make it possible to know each person's exact location in real time. Then would come official buildings, main streets, everyday life.

That scenario is not an isolated prediction. It is the direction in which the tools being adopted are pointing. Pathfinder is just one piece. The question is not whether the technology can do it, but who will decide the limits. And that answer, today, has not been written.

---

In the end, the unsettling fact is not that the Spanish tax agency has Israeli software. It is that it has it before any public debate about its limits has taken place.