The TEAC annuls a €264,504 tax-liability referral: liability in a chain

A taxpayer receives a tax-liability referral for €264,504.34. The Tax Agency considers that she helped conceal her spouse’s assets through the dissolution of their community-property regime. But her spouse’s debts were not originally his either: they arose from two subsidiary-liability referrals for a company’s tax obligations.

On reviewing the file, a decisive defect appears: there is no record of a declaration that the original debtor was insolvent for collection purposes.

Can the taxpayer challenge that irregularity even though it relates to an earlier referral addressed to another person?

The Central Economic-Administrative Tribunal (TEAC) answers yes. In its decision of 17 September 2026, RG 00/09980/2023, the TEAC upholds the appeal and annuls the joint-liability referral.

The decision applies the Supreme Court’s case law on so-called tax liability in a chain and confirms an important safeguard for taxpayers: the Administration cannot impose successive liability unless the indispensable legal requirements for the preceding referrals have been established.

The ruling is particularly relevant to tax lawyers, tax advisers, company directors and professionals specialising in tax-collection proceedings.

1. The facts: a debt passed from a company to a director and then to the director’s spouse

The proceedings arose from tax debts of a company identified in the decision as XZ, S.L. The Spanish Tax Agency (AEAT) first referred those debts to an individual, identified as Mr Bts, under two subsidiary-liability decisions, based on:

Article 43.1(a) LGT: subsidiary liability of directors of legal entities that have committed tax offences, where the conduct or omissions specified by law are present.

Article 43.1(b) LGT: subsidiary liability of directors of legal entities that have ceased trading for tax liabilities accrued and outstanding at cessation, where the statutory requirements are met.

Basis of referral	Amount
Article 43.1(a) LGT	€45,090.66
Article 43.1(b) LGT	€175,659.18
Total of both referrals	€220,749.84

Both decisions were notified on 23 July 2019. The Administration later began proceedings against Mr Bts’s spouse, Mrs Axy. The AEAT considered that the dissolution and liquidation of their community-property regime, formalised by public deed on 25 January 2012, concealed or transferred assets to obstruct collection.

On that basis, on 16 November 2021 it issued a joint-liability decision under Article 42.2(a) LGT. The amount of liability imposed on the taxpayer was €264,504.34.

That amount should not be confused with the €220,749.84 covered by the two subsidiary-liability decisions. They are different figures in the decision and cannot be equated without examining the detailed scope of the joint-liability assessment.

2. What is a chain of tax-liability referrals?

The General Tax Act allows certain debts to be collected from people other than the principal taxpayer when the statutory requirements are met. In some cases, however, a person declared liable becomes the person whose own liability is then used as the basis for declaring a third party liable. This creates a chain of liabilities.

In this case the chain was:

First level: principal debtor company. XZ, S.L. originally owed the tax liabilities.

Second level: subsidiary liable person. The company’s debts were referred to Mr Bts under Articles 43.1(a) and 43.1(b) LGT.

Third level: jointly liable person. The AEAT declared Mrs Axy liable under Article 42.2(a) LGT, on the basis that she had helped conceal or transfer Mr Bts’s assets.

The key point is that the joint liability was not based on a tax debt originally incurred by Mr Bts. It depended on the earlier subsidiary referrals being legally valid. If an essential requirement for subsidiary liability is missing, the basis for later joint liability may also be undermined.

3. The overlooked requirement: a declaration that the principal debtor is uncollectible

Subsidiary liability differs from joint liability in one essential respect. As a general rule, it may be enforced only after the principal debtor and, where relevant, jointly liable persons have been formally declared uncollectible. This follows from Articles 41.5 and 176 of the General Tax Act.

A declaration of uncollectibility does not necessarily mean that the debtor has no assets at all. It is an administrative declaration linked to the inability to collect the debt under the tax-collection rules. Its purpose is to justify moving from the principal debtor to a subsidiary liable person.

It is therefore not enough for the Tax Agency to consider that a company is in financial difficulty, has ceased trading or has failed to meet its tax obligations. The legal precondition for imposing subsidiary liability must be met.

The TEAC found no decision declaring XZ, S.L. uncollectible in the file it examined. That fact proved decisive.

4. The taxpayer appealed, but the regional tribunal initially upheld the referral

The taxpayer lodged an economic-administrative claim on 1 December 2021. Her arguments included limitation of the Administration’s right to declare liability, the absence of a declaration that the original debtor was uncollectible, and the failure to meet the requirements for joint liability under Article 42.2(a) LGT.

The Regional Economic-Administrative Tribunal of Andalusia, Málaga division, dismissed the joined claims on 27 July 2023 and initially upheld the AEAT’s collection action.

The taxpayer then appealed to the TEAC. After reviewing the administrative file, the Central Tribunal found the subsidiary-liability decisions but not the declaration that the original debtor was uncollectible. This changed the outcome.

5. The main legal issue: can a jointly liable person challenge an earlier subsidiary referral?

The answer requires examining Article 174.5 LGT, which generally governs challenges to liability-referral decisions. For cases under Article 42.2 LGT, it places a specific limit: the liable person may challenge the overall scope of their liability, but not the original tax assessments.

The Administration might argue that this prevents a jointly liable person from questioning earlier administrative acts addressed to someone else. That would be too broad. Challenging the original tax assessments is different from questioning whether the legal precondition for declaring the taxpayer liable existed at all.

Where joint liability is founded on a debt previously referred to a subsidiary liable person, the validity of that earlier referral may form part of the legal basis for the later liability. The issue cannot be excluded from all discussion merely because the earlier act was addressed to another person.

6. The Supreme Court had already established the key criterion

The TEAC relied on the Supreme Court judgment of 24 July 2024, cassation appeal 991/2023. That judgment addresses the limits on challenges in cases of successive tax liability.

The Supreme Court held that a prior subsidiary-liability referral is a factual and legal precondition for a later referral of joint liability under Article 42.2 LGT. A jointly liable person may therefore challenge the earlier subsidiary liability where they argue that no declaration of uncollectibility was made for the principal debtor.

The right of defence is not confined to the final link in the chain when the legality of that link depends on an earlier referral. The Supreme Court nevertheless set limits: it did not permit an unrestricted review of every preceding collection action. It distinguished the absence of a declaration of uncollectibility from disagreement with the Administration’s assessment of insolvency.

7. Three different situations that must not be confused

The Supreme Court’s doctrine, applied by the TEAC, distinguishes three scenarios.

A. No declaration of uncollectibility exists

If the declaration required for a subsidiary-liability referral does not exist, an essential legal precondition is missing. Where later joint liability depends on that referral, the jointly liable person may challenge their own decision on this ground. This was the central situation in the September 2026 decision.

B. A declaration of uncollectibility was properly made

In this case, the jointly liable person cannot simply dispute the declaration by arguing that the principal debtor had other assets that could have been seized. The Supreme Court expressly limits such a challenge. A legally valid declaration does not allow a later appeal to become a general review of every earlier collection measure.

C. A merely formal declaration with no substantive reasons

The Supreme Court recognises an exception. If the declaration is so devoid of reasoning that it has no substantive content, it may be treated as equivalent to no declaration at all. It is not enough that the reasoning is debatable or insufficient from the taxpayer’s perspective. The defect must be so serious that the act lacks any substantive justification for finding that the principal debtor’s assets were absent or insufficient.

The distinction between non-existence, disagreement about the assessment, and a radical lack of reasons is essential when preparing an appeal.

8. The TEAC reviewed the file: collection measures, but no declaration of uncollectibility

The Tribunal found various enforcement actions in the electronic file, but no decision declaring the original debtor company uncollectible. This raises an important evidentiary question: can the Administration replace an essential formal act with the mere existence of seizures, demands or collection efforts?

The decision says no. The declaration of uncollectibility serves its own legal function and cannot be treated as proven merely because the file contains earlier collection measures. Enforcement activity is not, by itself, proof that the required declaration was made.

Professionals reviewing tax-liability cases should therefore do more than check the chronology of seizures and collection activity. They must identify the administrative act that legally authorised the subsidiary referral.

9. The absence of a declaration may lead to absolute nullity

The TEAC linked its reasoning to its earlier decisions of 20 January 2025, RG 00/01175/2022, reiterating its decision of 15 November 2024, RG 00/05897/2021. Under that doctrine, omission from the file of an essential element that prevents valid commencement of subsidiary-liability proceedings may result in absolute nullity.

The declaration is not an incidental formality; it is a necessary precondition for imposing subsidiary liability. In September 2026, the Tribunal applied that doctrine to a chain of liabilities. The subsidiary referrals were the basis for the later joint liability. Because the file did not contain the declaration that the original company was uncollectible, the TEAC annulled the joint-liability decision.

It is important to be precise: the defect found in this decision was that the document had not been included in the file. There is no need to claim that the Administration never issued the act if what has been established is its absence from the file submitted. In any particular case, the available documents and legal effect of the omission must be checked.

10. The TEAC decision: appeal upheld and joint liability annulled

The Tribunal’s conclusion was clear. The earlier subsidiary referrals were the legal precondition for the joint liability imposed on the taxpayer. Since the electronic file did not contain a declaration that the principal debtor company was uncollectible, the TEAC annulled the joint-liability decision and upheld the appeal.

The €264,504.34 referral was annulled. The Tribunal considered it unnecessary to rule expressly on the other arguments. Accordingly, the decision does not establish that the dissolution of the community-property regime was necessarily lawful under Article 42.2(a) LGT. Nor does it resolve the limitation argument raised by the appellant. The annulment rests on the lack of evidence of an indispensable precondition to the earlier subsidiary liability.

11. Dissolution of the community-property regime and Article 42.2(a) LGT

Although the TEAC did not need to decide this argument on its merits, the context is relevant. Article 42.2(a) LGT allows joint liability to be imposed on people who cause or assist in concealing or transferring assets or rights of a person liable for payment for the purpose of obstructing collection. Liability is limited to the value of the assets or rights that the Administration could have seized or realised, under the statutory rules.

The provision is often raised in transactions between related people, including gifts to family members, transfers between spouses, dissolution and liquidation of community property, contributions of assets to related companies, and transfers that may hinder collection of tax debts.

None of these transactions automatically creates tax liability. The Administration must establish the specific requirements of Article 42.2(a), including the purpose of obstructing collection, under the applicable case law. Here, the AEAT considered that the 2012 liquidation of the community-property regime served that purpose, but the TEAC annulled the referral without deciding that question.

A referral may be invalid because an essential legal precondition is missing even if the Tribunal does not examine every asset-related circumstance behind the Tax Agency’s action.

12. What changes for directors and third parties declared liable?

The decision is useful beyond cases involving dissolution of community property. It applies to any structure in which the Administration seeks to impose successive liability that depends on a prior subsidiary referral.

For example, a company ceases trading with tax debts, the Tax Agency declares its director subsidiarily liable, and that director later transfers assets to a relative. If the AEAT alleges that the transfer was intended to obstruct collection and declares the relative jointly liable, the relative’s defence need not be limited to whether the transfer was fraudulent.

It may also be decisive to examine whether the earlier subsidiary referral met its statutory requirements. If the necessary declaration of uncollectibility was absent, or another fundamental defect recognised by the case law exists, the basis for the later liability may be challenged. The key is to identify the legal dependency between the two referrals.

13. How to review a chain-liability file

The decision supports a practical review method for lawyers and tax advisers:

1. Identify the original debtor. Determine which person or entity originally incurred the tax liability. The latest referral may not reveal the whole chain.
2. Reconstruct earlier referrals. Locate each liability decision, its legal basis, notification date and financial scope. Different types of liability have different requirements and challenge rights.
3. Check for a declaration of uncollectibility. Where subsidiary liability is involved, check whether the principal debtor and, where relevant, jointly liable persons were declared uncollectible, and whether the supporting document is in the file.
4. Review the reasons for the declaration. Distinguish disagreement about collection measures from a radical lack of reasoning that deprives the act of substantive content.
5. Review the basis for the later liability. For Article 42.2(a) referrals, examine the acts of concealment or transfer, the alleged liable person’s involvement, the statutory purpose and the financial scope.
6. Examine limitation. Multiple referrals may raise specific issues about calculation and interruption of limitation periods. Review the actual dates and acts; do not assume that an act against one person has the same effect for everyone.
7. Check procedural status. Determine whether the appeal period remains open, an economic-administrative claim is pending, or the decision is final. The new criterion does not permit indiscriminate reopening of final acts.

14. The complete administrative file may be decisive

One of the decision’s most important lessons concerns evidence. In liability proceedings, a defence often focuses on the individual circumstances of the person concerned: whether they were an effective director, participated in an offence or helped transfer assets.

But in a chain of liabilities, an earlier file may contain the decisive defect. It is therefore important to request access to the relevant records of preceding referrals, particularly where earlier subsidiary liability is an indispensable precondition for later joint liability.

The defence must be able to verify that the Administration met the statutory conditions for moving the debt from the principal debtor through each successive liable person. A taxpayer should not have to accept an earlier referral without review when their own payment obligation depends directly on it.

15. A line of doctrine reiterated in 2026

The September decision is not isolated. The TEAC states that it reiterates the criterion in its decision of 17 July 2026, RG 00/05154/2023. Both decisions recognise that in chain-liability cases a jointly liable person may challenge an earlier subsidiary referral when it is a legal precondition for their own liability. They also rely on the Supreme Court’s judgment of 24 July 2024.

This reiteration matters in administrative practice. There is an identifiable line of Supreme Court and economic-administrative case law on the right of defence in successive referrals, rather than an interpretation created solely for one file.

That does not mean every chain-liability decision must be annulled. It means the Administration must establish the requirements for each link when they are necessary to impose the debt on the next person.

16. Can the Tax Agency issue a new referral after annulment?

This question calls for care. Annulment of a liability decision does not necessarily extinguish the original tax debt in every case, and it does not invariably prevent a new administrative action.

Whether a referral can be issued again depends, among other things, on the nature of the defect, the effects of the annulment, whether valid legal preconditions exist, limitation of the Administration’s powers, finality and the applicable rules.

In this case, the TEAC annulled the joint-liability decision because an essential precondition to the earlier subsidiary referrals had not been evidenced. It did not make a general ruling on whether new proceedings could be started. It would therefore be inaccurate to say that the decision definitively extinguishes every tax obligation connected with the facts. What was annulled was the specific joint-liability decision under review, with the legal effects of that annulment.

17. What should taxpayers do if a liability referral is pending?

The decision is especially relevant to people appealing joint-liability decisions based on debts previously referred to company directors or other subsidiary liable persons. They should promptly review the documents relating to the earlier referrals.

If the file contains no declaration that the original debtor was uncollectible, this may provide an important legal basis for challenging the later decision. Where proceedings are pending before a regional tribunal, the TEAC or the administrative courts, advisers should consider how to raise this doctrine under the applicable procedural rules. It may also matter in administrative proceedings that remain open.

However, favourable doctrine does not automatically allow final decisions to be reopened. Each file requires individual analysis.

Conclusion: the Tax Agency must establish every essential link in the liability chain

The TEAC decision of 17 September 2026, RG 00/09980/2023, is an important ruling on tax collection. The Administration had demanded €264,504.34 from a taxpayer under joint liability pursuant to Article 42.2(a) LGT. The debt arose from two earlier subsidiary referrals concerning a company’s tax obligations.

The administrative file, however, contained no declaration that the company was uncollectible, an essential requirement for imposing subsidiary liability. Applying the Supreme Court’s case law, the TEAC held that the taxpayer could challenge the earlier referral because it was the legal precondition for her own liability. The appeal was upheld and the joint-liability decision annulled.

Chain liability does not make earlier decisions unchallengeable preconditions. Where one person’s liability legally depends on an earlier subsidiary referral, the Administration must establish that the essential requirements for that referral were met. The later liable person may challenge those requirements within the limits set by the case law.

Sometimes the most effective defence against a liability referral is not found in the Tax Agency’s latest decision, but in a legal defect at the first link in the chain.