Related-Party Transactions in Spain

What Are Related-Party Transactions?

Related-party transactions (operaciones vinculadas) are transactions between parties that are not dealing at arm’s length due to their relationship — ownership links, management overlap, family ties, or other forms of control or influence. In a business context, the most common related-party transactions are:

• Intercompany loans and cash pooling arrangements
• Management service fees charged by a parent to a subsidiary
• Royalties or licensing fees for intellectual property
• Procurement of goods or services from companies owned by shareholders or directors
• Salary or consultancy fees paid to shareholders who work in the business
• Rental of real estate between connected companies or individuals

The Spanish Legal Framework

Tax: Transfer Pricing Rules

The primary regulation of related-party transactions in Spain is the transfer pricing framework in Article 18 of the Corporate Tax Act (Ley del Impuesto sobre Sociedades). This rule requires that all transactions between related parties be valued at the arm’s-length price (precio de mercado) — the price that independent third parties would pay in comparable circumstances.

If a transaction is not at arm’s-length, the AEAT can adjust the taxable base to reflect the market price, and the difference may be treated as a deemed dividend, capital contribution, or income depending on the direction of the mispricing.

Who Is a “Related Party” (Persona o Entidad Vinculada)?

The LSC and the Corporate Tax Act define related parties broadly. For a company, related parties include:

• Shareholders holding (directly or indirectly) 25% or more of share capital or voting rights
• Directors and their close family members
• Companies in the same group (grupo de sociedades)
• Companies where the same shareholders or directors control both entities
• Partners and their spouses/domestic partners/relatives to the second degree

Transfer Pricing Documentation

Spanish transfer pricing rules require companies to maintain documentation demonstrating that related-party transactions are priced at arm’s length. The required documentation level depends on the company’s size and the volume of transactions:

• Large companies (net turnover > EUR 45 million): Full transfer pricing master file and local file
• SMEs: Simplified documentation
• All companies with related-party transactions above EUR 250,000 per type/counterparty must file Modelo 232 annually

Modelo 232: Annual Disclosure

Modelo 232 is an informative declaration filed with the AEAT each year (within the month following the tenth month after the financial year end) disclosing:

• Individual related-party transactions above EUR 250,000 in the year
• Any transactions involving tax havens
• Holdings qualifying for the participation exemption

Failure to file or filing with incorrect data attracts formal penalties of EUR 20 per data omitted, with a minimum of EUR 300 and maximum of EUR 20,000.

AEAT Scrutiny of Related-Party Transactions

Related-party transactions are a priority area in the AEAT’s inspection plans. Common audit targets include:

• Management fees paid by subsidiaries to parent companies without documented services
• Below-market loans from shareholders to the company (imputed interest income must be recognised)
• Above-market rents paid to shareholders’ property companies
• Salary-disguised dividends paid to shareholder-directors through inflated remuneration arrangements
• Intercompany prices that shift profits to low-tax jurisdictions within a group

The AEAT has sophisticated data analytics and access to cross-border information exchange mechanisms (through BEPS and EU Directive DAC) to identify suspicious patterns.

Corporate Governance: Director Conflict Rules

Beyond tax, related-party transactions trigger corporate governance obligations under the Ley de Sociedades de Capital:

• Directors must disclose any situation of conflict of interest to the board before a decision is made
• Directors must abstain from participating in the decision on any matter where they have a personal interest (deber de abstención)
• Shareholders’ meeting approval may be required for transactions between a director and the company above certain thresholds (as set in the articles or requested by minority shareholders)

Listed SA companies are subject to enhanced requirements under the CNMV’s Good Governance Code: the board must approve all related-party transactions (with the interested director excluded from voting) and must publicly disclose them.

Practical Implications for Foreign-Owned Spanish Companies

Foreign groups with Spanish subsidiaries must pay particular attention to:

1. Management services agreements: Document what services the parent provides, at what cost, and how the fee is calculated. The AEAT will expect evidence of actual services rendered, not just a cost allocation formula.

2. Intercompany loans: Apply a market interest rate based on the company’s credit standing. Loans below market rates create deemed income for the lender and a potential deemed dividend from the borrower’s perspective.

3. Intellectual property licensing: Royalties paid by a Spanish subsidiary to a foreign parent for brand, technology, or know-how must be justified by the value of the IP and the contribution to the subsidiary’s profits.

4. Cash pooling: Centralized treasury arrangements must be structured and priced to reflect the credit risk and liquidity contribution of each participant.

Arm’s-Length Pricing Methods

The OECD Transfer Pricing Guidelines (adopted in Spain) recognise five methods for determining arm’s-length prices:

Frequently Asked Questions

If my Spanish company charges below-market rent to a related party, what is the tax risk? The AEAT can adjust the taxable base of both the lessor and lessee to the market rent. For the lessor, the difference between market rent and actual rent is additional taxable income. The adjustment may also trigger a deemed distribution or capital contribution if the parties are shareholder and subsidiary.

Does a sole shareholder-director’s salary need to follow arm’s-length rules? Yes, if the director also holds 25% or more of share capital. The AEAT applies the related-party rules to remuneration paid to shareholder-directors, particularly when examining whether compensation reflects genuine services or is structured to convert dividends (non-deductible) into deductible salary expense.

Are related-party transactions with individuals outside Spain covered? Yes. Spain’s transfer pricing rules apply to cross-border related-party transactions. The AEAT cooperates with foreign tax administrations through information exchange programmes and may challenge transactions that shift profits abroad.

What penalties apply for transfer pricing adjustments? If the AEAT adjusts the price of a related-party transaction, the additional tax assessment carries standard interest and potentially penalties. Penalties are reduced (or eliminated) if the company has adequate transfer pricing documentation.

Do related-party rules apply to transactions between Spanish group companies? Yes, but taxpayers in a Spanish consolidated tax group can opt for consolidated tax treatment, which neutralises many intragroup transactions. Companies outside a consolidation group must apply full arm’s-length pricing.

How BMC Can Help

We design and document related-party transaction frameworks for Spanish subsidiaries and groups: preparing master files and local files, pricing intercompany arrangements, filing Modelo 232, and representing companies in AEAT transfer pricing inspections.