B Law & Tax
13 December 2024

TEAC establishes precedent: refunds from rectifications of Corporate Tax self-assessments are not undue payments

In a pivotal decision, the Spanish Central Economic-Administrative Court(TEAC) has resolved an extraordinary appeal for unification of criteria filed by the Director of the Financial and Tax Inspection Department of the Spanish Tax Authorities, clarifying the legal nature of certain tax refunds stemming from the rectification of Corporate Tax self-assessments.

The Case

The dispute arose when a company filed a request to rectify its Corporate Tax self-assessment for the 2019 fiscal year. Initially, the company had applied R&D deductions up to 25% of the tax base but later requested to extend the limit to 50%, as permitted by the Corporate Tax Law (LIS) under specific conditions. This resulted in an additional refund of €121,028.

While the Spanish Tax Authorities approved the refund, it classified it as a refund derived from the application of tax regulations, arguing that it did not entail the accrual of late payment interest. Conversely, the company contended that the refund constituted an undue payment, thus requiring the payment of interest from the original filing date of the self-assessment.

TEAC’s decision

The TEAC ruled in favour of the Spanish Tax Authorities, determining that such refunds do not qualify as undue payments but rather as refunds derived from the application of tax regulations. The Court asserted that the original payments made by the company were lawful and in compliance with the applicable tax regulations at the time, and their subsequent rectification did not alter their legal nature.

The Court emphasised that the classification of a payment as undue requires an element of illegality at the time of the payment, which was absent in this case. Consequently, late payment interest is only applicable if the Spanish Tax Authorities fails to issue the refund within six months of the rectification request, in accordance with Article 31.2 of the Spanish General Tax Law.

Implications

This decision sets an important precedent in the tax field, limiting the accrual of late payment interest for refunds resulting from rectified self-assessments. It also aims to prevent strategic behaviour by taxpayers who might seek to maximise interest payments through incomplete or incorrect initial filings.

The ruling provides clarity in the application of tax regulations and reinforces the distinction between refunds derived from the application of tax provisions and refunds of undue payments. This has significant implications for both taxpayers and tax administrations.

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