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Alonso Sala
CRIMINAL LAWYERS
ES
Legal Analysis

Tax Fraud and the Regularization Strategy

calendar_todayDecember 14, 2025

Last updated:

lightbulbKey Takeaways

  • check_circle120,000 euro threshold
  • check_circleEconomy of option vs Simulation
  • check_circleSpontaneous regularization
  • check_circleReparation mitigating factor

Quick answer

Tax fraud (Art. 305 CP) only exists where the amount defrauded from the Public Treasury exceeds 120,000 euros per tax and year; below that it is an administrative infringement, punishable by a fine but without prison or a criminal record. The Criminal Code offers an absolutory excuse: voluntary regularization (Art. 305.4), which exempts from criminal liability if the taxpayer acknowledges and fully pays the quota plus interest before the Administration notifies them of the start of verification actions. The regularization must be complete and truthful; once the inspection has begun it no longer exempts, although it may operate as a mitigating factor of damage repair.

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The crime against the Public Treasury, defined in Article 305 of the Criminal Code, is one of the most complex and dangerous figures in economic criminal law. Not all tax non-payment constitutes a crime; the border is marked by the amount and intent. The defrauded quota is required to exceed 120,000 euros per tax and year. If the debt is lower, we remain in the realm of administrative infraction, punishable by a fine but without prison sentences or criminal records.

The Quota and Simulation

Technical defense in these cases usually begins by questioning the calculation of the quota. The Tax Agency tends to apply maximum criteria, but in criminal proceedings, the principle 'in dubio pro reo' governs. Through accounting and tax experts, we work to discuss the tax base, deduct initially unrecognized expenses, and, if possible, reduce the defrauded quota below the 120,000 euro threshold. If successful, the crime disappears due to lack of objective typicality.

Another battlefield is the distinction between 'economy of option' (lawful or debatable tax planning) and 'simulation' (fraud). The crime requires intent, an intention to deceive and hide. Interpretative discrepancies over a complex tax rule should not be a crime, although the Public Treasury often attempts to criminalize them.

Regularization as an Absolutory Excuse

The Criminal Code offers a unique 'emergency exit': voluntary regularization (Art. 305.4 CP). If the taxpayer acknowledges the debt and fully pays the quota plus interest before the Administration notifies them of the start of verification actions, they are exempt from criminal liability. This is known as an 'absolutory excuse'.

The Time Factor

The critical factor here is time and completeness. Regularization must be 'complete and truthful'. Paying only a part or trying to regularize when one already has knowledge that the inspection is going to start invalidates the exemption.

Strategy when Inspection has Started

In cases where the investigation has already begun, regularization does not exempt, but can serve as a highly qualified mitigating factor of damage repair, allowing the sentence to be reduced by one or two degrees and avoiding, in many cases, effective imprisonment. Our strategy includes negotiation with the State Attorney to reach plea agreements that protect the client's assets and freedom.

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Frequently asked questions

When does tax non-payment become a tax crime?expand_more

When the amount defrauded, by act or omission, exceeds 120,000 euros per tax and per year (Art. 305 CP). If the amount is lower there is no crime, but an administrative infringement punishable by a fine, without prison or a criminal record.

What does voluntary regularization consist of?expand_more

It is an absolutory excuse under Art. 305.4 CP: if the taxpayer acknowledges the debt and fully pays the quota plus interest before the Administration notifies them of the start of verification actions, they are exempt from criminal liability. It must be complete and truthful; paying only a part or doing it once the imminent inspection is known invalidates the exemption.

Can the quota be reduced so the crime disappears?expand_more

Technical defence usually challenges the calculation of the quota through accounting and tax experts, discussing the tax base and deducting unrecognised expenses. If the amount defrauded can be brought below the 120,000-euro threshold, the crime disappears for lack of objective typicality.

What happens if the inspection has already started?expand_more

If the investigation has already begun, regularization does not exempt from liability, but paying the debt can operate as a highly qualified mitigating factor of damage repair, allowing the sentence to be reduced by one or two degrees and, in many cases, avoiding effective imprisonment.

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