It is common for German, Swiss, British or US nationals to act as directors of Spanish limited liability companies (SL) or corporations (SA), whether for real estate investments, business ventures or asset-holding structures.
In many cases, non-resident directors are unaware that their mere registration as company director in the Spanish Commercial Registry may expose them to a tax liability derivation procedure for unpaid tax debts of the company.
In recent years, the Spanish Tax Agency (Agencia Estatal de Administración Tributaria – AEAT) has significantly increased the number of tax liability derivation proceedings under Articles 42 and 43 of the Spanish General Tax Act (Law 58/2003).
Given the potentially high amounts involved, tax liability derivation in Spain has become one of the most litigated areas of Spanish tax law.
However, in 2025, the legal landscape changed considerably. Several Supreme Court rulings have imposed strict limits on the administrative power to derive tax liability, reinforcing directors’ procedural guarantees and restricting automatic derivation practices.
Legal Framework of Tax Liability Derivation in Spain
Spanish tax law distinguishes between two types of third-party tax liability:
- Joint liability (Article 42 of the General Tax Act)
- Subsidiary liability (Article 43 of the General Tax Act)
Both mechanisms allow the Tax Administration to claim payment from persons other than the main taxpayer, but under different legal conditions.
Subsidiary Liability of Company Directors (Article 43.1.a)
The most relevant provision for directors is Article 43.1.a, which establishes subsidiary liability when:
- The company has committed tax infringements.
- The director failed to take necessary actions to ensure compliance.
- The director consented to non-compliance.
- The director adopted decisions that enabled the infringement.
Article 43.1.b further provides for liability when a company ceases activity without settling outstanding tax debts.
Principle of Subsidiarity
Tax liability derivation under subsidiary liability can only be activated once:
- The main debtor has been declared insolvent.
- Potential jointly liable persons have been pursued.
This principle was substantially reinforced by the Supreme Court in 2025.
Supreme Court Judgment 594/2025: Sanctioning Nature of Tax Liability Derivation
Supreme Court Judgment 594/2025 marked a turning point in Spanish tax liability derivation cases.
The case involved a director declared subsidiarily liable for VAT debts exceeding €355,000.
The Supreme Court established fundamental principles:
1. Tax Liability Derivation Has a Sanctioning Nature
The Court confirmed that subsidiary tax liability under Article 43.1.a has a sanctioning character. Therefore, it must respect the guarantees applicable to administrative sanction procedures.
2. No Strict or Automatic Liability
Mere status as company director is insufficient to justify tax liability derivation.
3. Burden of Proof Lies with the Tax Administration
It is not the director’s obligation to prove innocence.
The Spanish Tax Agency must prove:
- A specific wrongful action or omission,
- Fault or negligence,
- A causal link to the tax infringement.
4. Individualised Reasoning Is Required
Generic or standardised reasoning is insufficient. The Tax Administration must identify the director’s concrete conduct.
5. Application of the Presumption of Innocence
Any doubt must be resolved in favour of the director.
Confirmation by Subsequent Rulings: Judgments 901/2025 and 3465/2025
Judgment 901/2025 confirmed that formal registration as director in the Commercial Registry does not automatically justify tax liability derivation.
Judgment 3465/2025 extended these guarantees to cases involving company cessation under Article 43.1.b.
Automatic liability derivation is no longer acceptable under Spanish Supreme Court doctrine.
Supreme Court of 5 November 2025: Obligation to Exhaust Joint Liability First
A further landmark ruling clarified that subsidiary tax liability derivation is only lawful when:
- The main debtor has been declared insolvent.
- Potential jointly liable parties have been properly investigated.
If a director provides credible evidence of possible jointly liable persons, the Spanish Tax Agency must investigate and provide explicit reasoning.
Failure to do so may invalidate the tax liability derivation decision.
Practical Implications for Non-Resident Directors
Foreign directors are particularly vulnerable due to:
- Limited knowledge of Spanish tax law.
- Physical distance from day-to-day management.
- Notification issues abroad.
- Reliance on local advisers.
Key principles to remember:
- Being a registered director is not enough to trigger liability.
- Generic reasoning is challengeable.
- Other liability routes must be exhausted first.
- Appeal deadlines are strict and short.
Preventive and Defensive Strategies
Preventive Measures
Directors should maintain proper documentation of:
- Board meeting minutes.
- Instructions to tax advisers.
- Requests for compliance reports.
- Evidence of supervisory diligence.
This documentation can be decisive in a tax liability derivation procedure.
Defensive Strategy
Upon receiving a liability derivation notice, it is essential to verify:
- Whether concrete fault has been proven.
- Whether insolvency was formally declared.
- Whether joint liability was investigated.
- Whether reasoning is sufficiently individualised.
- Whether limitation periods have expired.
Procedural defects may allow annulment of the derivation decision.
Conclusion
The 2025 Supreme Court rulings have transformed tax liability derivation in Spain.
Tax liability derivation is no longer automatic. The Spanish Tax Agency must prove specific culpable conduct and comply with strict procedural guarantees.
For non-resident directors, this new legal framework provides solid grounds to challenge unlawful derivation decisions.
Specialised legal advice at the earliest stage of the procedure is essential.
Have You Received a Tax Liability Derivation Notice in Spain?
Our team of international tax lawyers has extensive experience defending non-resident directors in tax liability derivation procedures before the Spanish Tax Agency.
Contact Resitax for an initial consultation.
