Applicable Law and Regulations

Spain’s transfer pricing (TP) regime is grounded in Article 18 of the Corporate Income Tax Law 27/2014 (Ley del Impuesto sobre Sociedades, LIS) and detailed in Articles 13 to 17 of the Corporate Income Tax Regulations approved by Royal Decree 634/2015 (Reglamento del Impuesto sobre Sociedades, RIS).

Content

Article 18 sets the arm’s length principle, defines “related parties”, lists recognised methods, establishes documentation duties, provides for primary/secondary adjustments and frames advance pricing agreements (APAs). The RIS develops functional analysis, methodology selection, comparability analysis, documentation (master file/local file) and APA procedures. Documentation must be made available from the end of the voluntary filing period for the corporate tax return to the Spanish Tax Administration.

Evolution of TP Framework in Spain

Spain modernised TP in stages: major reforms began with Law 36/2006 (anti-fraud), continued with LIS 27/2014 and RIS 634/2015 (eliminating method hierarchy, permitting unspecified methods, detailing documentation and formalising APAs) and have been refined by subsequent amendments.

Spain has also legislated the EU 15% minimum tax through Law 7/2024 (the “Complementary Tax”) and its implementing regulation (Royal Decree 252/2025), generally effective for periods beginning 31 December 2023 (with staged elements). These instruments expressly reference OECD/EU materials in their interpretive guidance.

Currently, administration practices are being reshaped by the Strategic Plan 2024–27 of the Spanish Tax Agency (Agencia Estatal de Administración Tributaria, AEAT).

AEAT’s Strategic Plan 2024–27

The Plan pivots to data-driven risk management via a central Segmentation, Analysis and Risk Committee and a unified multiyear “risk map”, and formalises a 360-degree strategy that co-ordinates APAs, targeted inspections and mutual agreement procedures (MAPs) for long-term certainty.

International information exchanges will weigh more heavily in TP selection, with new data streams (e-commerce platforms, cross-border payments, crypto-assets, beneficial ownership registers) integrated into analytics.

Co-operative compliance tools are strengthened through the Good Tax Practices Code and a voluntary transparency report, now allowing optional TP documentation sharing. Digital initiatives (EU ViDA, Spain’s e-invoicing system and Veri*factu) and AI-supported analytics (excluding generative AI for enforcement) aim to stabilise transaction-level inputs.

The Plan also operationalises Pillar Two (effective for periods starting 31 December 2023) and prepares processes for Pillar One certainty and expanded joint/multilateral controls.

Rules apply to “related” persons/entities as defined in Article 18 paragraph 2 of LIS, a flexible concept that captures legal and factual control, management and ownership ties (including “group” under Commercial Code standards).

The 25% direct or indirect participation threshold is a common trigger for shareholder company relatedness, and directors/de facto controllers are also covered. Consolidated tax group transactions have specific reliefs for documentation duties but remain subject to arm’s length valuation.

Spanish law recognises the comparable uncontrolled price (CUP), resale price, cost-plus, transactional net margin and profit-split methods, mirroring the OECD catalogue. The RIS emphasises that the most appropriate method depends on the transaction’s nature and available, reliable comparables.

Unspecified methods are allowed where they produce the most reliable arm’s length outcome. In practice, valuation techniques such as discount cash flow (DCF) may be used for unique intangibles or restructuring where traditional methods are inapposite, provided assumptions are coherent with business plans and observable data where feasible and properly documented.

There is no legal hierarchy. Taxpayers must select and substantiate the most appropriate method given functions, assets, risks and data quality, in line with Article 18 LIS and the RIS.

Spain accepts ranges/intervals derived from the selected method when properly supported and documented. The Tax Administration has issued a note about this matter, expressing a preference for points inside the interquartile range and rejecting any value outside of it. Failure to reach the interquartile range will lead to an adjustment to the median value.

Analysis Design in Spain

In applying ranges, Spanish practice typically expects an interquartile range when external comparables are heterogeneous. Crucially, the reliability of the range turns on three design choices that should be pre-emptively defended in the local file.

• First, screening logic: articulate the economic rationale for each quantitative and qualitative filter (size, geographic scope, product proximity), and disclose the sensitivity of results to alternative but reasonable filters.
• Second, multiyear versus single-year measures: while multiyear averages can stabilise volatility, the tested year still drives the tax base; the file should both present the multiyear perspective and justify the tested year position, especially in the context of shocks (eg, supply chain disruptions) that unevenly affect tested parties and comparables.
• Third, loss-making comparables: loss-makers are often excluded by the Tax Administration; nevertheless, it is advisable to collect evidence regardless of whether losses reflect structural non-comparability (eg, chronic distress, different business model) or cyclical effects relevant to the tested facts. Where appropriate, one should document robust comparability adjustments (eg, working capital) and show their quantitative effect, both before and after adjustments, to demonstrate that the final interval is not merely aspirational but decision-grade.

Choosing a Value in the Interval

As a practical point on “tightening” intervals, if the full interquartile range is wide due to dispersion, presenting a point within range justified by functional intensity (eg, lower quartile for routine distributors with minimal intangibles) should be considered, supported by a transparent narrative.

Conversely, where the tested party exhibits above-routine contributions (eg, sustained local market development without assured reimbursement), a mid- to higher range can be considered, with evidence of incremental functions and risks.

Comparability must address product/service characteristics, functional profiles, contract terms, market conditions and strategy. Where material differences exist and reliable adjustments can be made, adjustments are expected to improve reliability. The Regional Economic-Administrative Court (Tribunal Económico-Administrativo Regional, TEAR) has reiterated that comparability hinges on whether differences affect the tested factor (price or margin) and whether adjustments can neutralise them.

Adjustments in Practice

Working capital adjustments are common in Spain and should tie directly to cash conversion differences (receivables, payables, inventory days) between the tested party and each comparable. The model should specify whether the adjustment applies to the numerator (eg, earnings before interest and taxes, or EBIT) or denominator (eg, sales or costs) and avoid double counting where transfer pricing policies already embed payment term economics.

Capacity utilisation adjustments can be persuasive for manufacturers facing temporary underutilisation not expected at steady state. To withstand scrutiny, one should quantify normal capacity with historical and industry references, separate volume‑driven inefficiencies from structural issues and document management actions to revert to normal levels.

Geographic adjustments require caution: Spain generally expects that markets with materially different competitive intensity, regulatory burdens or cost structures be stratified rather than “adjusted away” unless robust market‑specific evidence supports the transformation.

Finally, risk adjustments should follow the OECD’s accurate delineation logic: prove that differences in risk control and financial capacity exist and quantify them through coherent mechanisms (eg, credit‑risk notching for financial transactions; volatility premia for entrepreneurial distributors), avoiding opaque black‑box models.

Spain aligns with the OECD’s DEMPE framework. Non-traditional valuation methods are acceptable if assumptions (e.g., growth, discount rates, attrition) are explicit, evidenced, and traceable to budgets and market data. The onus is on robust contemporaneous documentation kept from the end of the voluntary filing period.

Documentation to Compile When Valuing Intangibles

For development, enhancement, maintenance, protection and exploitation (DEMPE)-aligned outcomes, Spanish inspectors increasingly ask for granular artefacts that demonstrate real-time control and capability, not merely job descriptions or organisation charts.

Effective files include:

• R&D and product roadmap governance minutes showing who sets scope, go/no go and budget pivots;
• IP committee materials on protection, maintenance and enforcement;
• incentive plans that align key personnel to risk-bearing entities; and
• evidence of cross-functional decision rights (tax, legal, commercial) consistent with claimed ownership of economically significant intangibles.

For valuation, one should transparently bridge the DCF to management plans, show cross-checks (eg, relief from royalty triangulation) and stress test key assumptions (growth, margins, decay, tax amortisation benefits). Where options realistically available could have led to different structures (eg, contract R&D versus buyin), why the chosen path maximises expected value for both parties should be explained.

There is no standalone HTVI statute, but Spain’s verification powers and evidentiary standards allow the administration to test the reasonableness of ex ante projections against subsequently available information when assessing whether original pricing reflected arm’s length expectations. The analysis centres on economic realism and the reliability of inputs, not hindsight alone.

Cost contribution (cost sharing) is recognised. Agreements must reflect expected benefits, allocate contributions based on rational criteria and provide for true ups where participants or circumstances change. The RIS requires documentation of the allocation mechanics and the rights obtained (ownership or economically similar rights) by each participant.

Cost Contribution Agreement (CCA) Inflection Points

Spanish scrutiny often centres on three CCA inflection points.

• Entry: a buy-in that reflects the present value of access to pre-existing intangibles or platforms should be in evidence, with an explanation of the valuation method and how double counting of future contributions is to be avoided.
• Exit or perimeter change: one should provide a compensatory payment (buyout/true up) for transferred interests or altered benefit expectations, with a transparent revaluation tied to changed facts (eg, pivot to new technology stack, market exit).
• Ongoing mechanics: contribution keys should be aligned with expected benefits (eg, forecast sales, usage metrics), with a commitment to periodic re-baselining to avoid drift. Dispute resolution clauses and controls should be included with respect to participants’ capability to perform DEMPE functions. Operationally, a “CCA pack” should be maintained each year, with updated benefit tests, contribution calculations, variance analyses, and board approvals – this is often decisive in examinations.

Taxpayers may self-correct via Spain’s amended self-assessment mechanisms to align with arm’s length outcomes, subject to general procedural rules. The interplay with Model 232 disclosures and documentation should be considered to mitigate penalty exposure.

Recommendations: Coherence in Shared Information

When self-correcting via amended self-assessment, timing and coherence matter. It is necessary to:

• file the correction while the voluntary filing or amendment window remains open, update Model 232 if impacted and document the reasoned pathway from facts to the new price (methodology, comparables and tested-year evidence); and
• explicitly address penalty mitigation – contemporaneous documentation, transparent disclosures and corrective governance (eg, revised intercompany agreement, implementation memo) help demonstrate diligence rather than negligence.

If the counterparty is foreign, one should proactively evaluate double taxation risk and consider parallel steps (eg, correlative adjustment request abroad, pre-consultation on MAP) to preserve relief pathways.

Secondary consequences are in accordance with the nature of the recharacterised income (eg, constructive dividends/contributions in shareholder company contexts). The Central Economic-Administrative Court (Tribunal Económico-Administrativo Central, TEAC) has addressed characterisation and bilateral alignment in related party corrections and the obligation to recognise the correlative effect where the administration adjusts only one party first.

Shareholder Company Secondary Adjustments

In shareholder company contexts, Spain may characterise differences as constructive dividends, equity contributions or similar, unless a permitted “restitution” mechanism is implemented.

Practically, it is useful to document the restitution payment (or accounting entry) with:

• a precise calculation of the primary adjustment;
• board approvals and intercompany invoices/receipts;
• withholding tax analysis where relevant; and
• alignment of books and tax returns in both entities.

Where bilateral alignment is needed, one should co-ordinate with the counterparty’s jurisdiction early to avoid mismatches (eg, dividend versus price adjustment), which complicate treaty relief.

It is very common during a tax audit for an international exchange of information procedure to be initiated to gather information additional to that already provided by the taxpayer. The Tax Administration has different tools to do so, such as a remarkable network of double tax treaties that all include an exchange of information-related article. From a multilateral perspective, Spain, as a member of the EU, can apply all the Directives related to administrative co-operation, and it has also signed the Multilateral Conventions of the OECD pertaining to this issue. This is an area where the Spanish Tax Administration has developed dramatically in the last few years.

Joint audits have been somewhat controversial, but as they were imposed by an EU Directive, Spain is obliged to apply them. This legislation is incorporated into the General Tax Code. Although implemented quite recently, the joint audit might be useful in the future.

Unlike joint audits, simultaneous controls have been regulated in the General Tax Code for many years and have become standard practice within the Spanish Tax Administration. In these kinds of procedures, although a tax audit may be initiated, the level of transparency of the related discussions is quite limited.

Spain participated in the pilot of the International Compliance Assessment Program (ICAP), and in subsequent versions. The benefits for both the Tax Administration and companies remains to be proven, as the compliance costs are still quite high.

The APA has been available in Spain for many years. In Spain, an APA covers only TP issues and is available in unilateral, bilateral and multilateral versions.

Some years ago, the Spanish Tax Administration created a specific unit within the AEAT to deal with TP issues: the International Tax Office (Oficina Nacional de Fiscalidad Internacional, or ONFI). This unit handles the APA and MAP procedures and has been reinforced in recent years to ensure the increasing demand for experimentation can be met.

ONFI has two separate teams, one for MAPs and another for APAs, but they both report to the head of ONFI. This guarantees optimal co-ordination between both procedures when required.

No specific limits are established in the legislation for the initiation of an APA, be it unilateral, bilateral or multilateral. The only formal requirement, apart from the necessary documentation, is that the matter must concern TP, and not the definition of a permanent establishment or the application of treaties.

In terms of procedure, there are few requirements for an APA. It can be initiated any time before a transaction takes place; if the negotiation takes longer than expected, a roll-back application is available under certain circumstances.

Spanish tax legislation does not impose any fees on APAs.

An APA can cover four years from the moment it is signed (not initiated), plus the present year, and it can be renewed for another four years. Its effects can also be rolled back four years after signing under certain conditions.

An APA can have a retroactive effect for four years from its signing, as long as no tax audit has taken place during that period, and the conditions and circumstances remain the same. This applies to unilateral, bilateral and multilateral APAs.

Spain has specific TP documentation penalties.

Failure to provide, or providing incomplete/false, documentation is a serious infringement subject to fixed fines of EUR1,000 per “data” and EUR10,000 per “set of data”, with a cap at the lower of:

• 10% of the aggregate value of related party transactions; or
• 1% of net turnover.

Proportional penalties can also apply where TP corrections are assessed. Maintaining robust, proportional, contemporaneous documentation available from the end of the voluntary filing period is the primary defence.

Additionally, the law provides a specific 15% proportional penalty for TP when the tax authority makes a valuation adjustment and the taxpayer has failed to meet documentation requirements (eg, not providing the master/local file, providing an incomplete file or one with false data, or declaring a value that contradicts the taxpayer’s own documentation).

In those cases – and only if there is an actual adjustment – the penalty is 15% of the amount arising from each adjusted related party transaction. This proportional TP penalty applies alongside, but for the adjusted portion displaces, the general infringement regime; by contrast, if no adjustment is made, the 15% penalty does not apply.

Spain follows a two-tier documentation model (master file and local file) aligned to BEPS Action 13, and requires a country-by-country (CbC) report (Model 231) for groups with consolidated revenue of at least EUR750 million. Documentation must be available by the end of the voluntary filing period for the relevant fiscal year. Spain also uses Model 232 for informative disclosure of specified related party transactions and transactions with noncooperative jurisdictions; AEAT publishes the official instructions and online guidance for thresholds and content.

Notes on Specific Cases

A simplified local file is available below the EUR45 million turnover threshold, with exclusions (eg, business transfers and transfers of non‑listed equity, real estate and intangibles).

Model 232 thresholds include, among others, >EUR250,000 with the same related counterparty (market value) and specific categories with their own materiality and aggregation logic; the official instructions provide the operative decision table. Filing is due in the month after the ten-month period following the end of the financial year.

Spanish TP law is expressly interpreted in harmony with OECD Guidelines and EU outputs, subject to statutory text. Overall doctrinal and procedural alignment is close, including acceptance of unspecified methods and ranges, and an emphasis on accurate delineation and comparability.

Spain does not use formulary apportionment. The arm’s length principle governs TP, and customs valuation remains a distinct legal regime even if taxpayers strive for factual consistency across both.

BEPS Action 13 was implemented through RIS documentation rules and CbC reporting requirements (Model 231), with AEAT publishing CbC analytics and methodology. Audit practices now rely more on risk assessment informed by CbC and inter-jurisdictional exchanges.

Spain enacted the EU Minimum Tax Directive via Law 7/2024 and its implementing regulation (RD 252/2025). Groups within scope should assess interactions between Pillar Two outcomes (eg, effective tax rate and top-up tax by jurisdiction) and TP policies, governance, year-end adjustments and APAs.

Pillar Two’s Impact on TP Planning and Evaluation

Pillar Two’s 15% minimum tax reshapes TP guardrails in three ways.

• First, cash tax timing: year-end TP adjustments that improve the arm’s length position may also move the effective tax rate needle if the jurisdiction is near the threshold; both corporate tax and top-up tax consequences should be modelled before closing the books.
• Second, safe harbours and data dependencies: whether applying transitional or qualified safe harbours, one should ensure that TP policies do not create volatility in Global anti-Base Erosion (GloBE) income or covered taxes that jeopardises safe harbour eligibility; stable, monitorable pricing beats theoretically perfect but noisy designs.
• Third, APA interplay: one should confirm whether existing APAs remain economically neutral under Pillar Two (eg, no unintended ETR dips due to asymmetric recognition of adjustments), and be ready to brief the competent authorities during renewals on the Pillar Two lens.

Across all three, governance matters: one should implement joint tax TP steering to avoid siloed decisions.

As of early 2026, Spain has not enacted domestic rules for Pillar One Amount B; monitoring continues at the OECD/EU levels.

Limited risk models are respected when contracts and conduct align. In financing, TEAC has underscored that, in cash pooling systems, group credit risk may be the appropriate benchmark where it best reflects the economic reality and the leader performs administrative/treasury, not bank-like, functions.

Where applicable treaties so provide, Spain follows an approach to PE attribution consistent with the Authorised OECD Approach, recognising notional internal dealings at arm’s length. Domestic administration of the outcome follows the RIS and the treaty text.

The UN Manual has no formal status in Spain; practice is keyed to the OECD Guidelines, though the UN text can be informative contextually.

Spain has no statutory safe harbour for low value-adding services or other TP categories. Pricing must be supported by analysis consistent with functions/benefits and allowing comparability. Although the general rule of applying 5% over the costs for general management or administrative functions applies, it does not exempt the taxpayer from performing the analysis.

Article 18.6 of the Spanish Corporate Income Tax Law is not specifically a safe harbour, but it effectively operates as one for services rendered by individual professional partners to their related professional entity. If all of the following conditions are met, the agreed price is presumed to be at arm’s length:

• over 75% of the entity’s revenue derives from professional activities, and there are adequate personnel and tangible resources;
• the aggregate remuneration paid to all professional partners for those services equals at least 75% of the entity’s result before deducting such remuneration; and
• each partner’s individual remuneration is set by reference to their contribution and is not lower than one-and-a-half times the average salary of employees performing comparable functions (or, if there are no comparable employees, not lower than five times the Public Indicator of Multiple Effect Income (Indicador Público de Renta de Efectos Múltiples, or IPREM) benchmark, which is tested yearly by the Tax Administration).

A failure of the final one of these conditions by one partner does not prevent the presumption from applying to the others. The regime is elective and narrowly focused on intra-group professional services, and the general TP analysis applies where any condition is not satisfied.

Location savings and integrated workforce synergies are recognised comparability factors and should be considered explicitly where relevant to pricing.

Operations with residents in noncooperative jurisdictions attract heightened documentation duties and deductibility constraints under the RIS. Even where parties are not “related”, special rules may require documentation for certain cross-border dealings (eg, services and goods under specific conditions).

TP and customs valuation are distinct regimes; one does not mechanically determine the other. Taxpayers should maintain coherent facts but satisfy the legal tests of each domain separately.

Spanish law applies the arm’s length principle to intra-group financial transactions without a specific statutory safe harbour. General interest limitation rules apply in parallel and do not replace TP analysis.

Cash Pooling

TEAC criteria for cash pooling stress economic reality: where the leader is an administrator of liquidity (not a lender bearing full bank-like risk), group credit quality can be the appropriate reference, and standalone borrower ratings may be less probative.

For cash pooling, there are two important tests to complete before establishing the interest rate.

• Substance: demonstrate whether the pool leader acts as a liquidity administrator (agency-like) or as a principal assuming bank-like credit and maturity transformation risks; the answer to this question drives both the leader’s return (service versus spread) and the participants’ remuneration.
• Pricing architecture: if the leader is administrative, one should benchmark a cost plus for treasury services and set participant deposit/borrowing rates by reference to group credit quality adjusted for tenor, currency and collateral, ideally setting an interest rate that suits the whole group. Alternatively, intermediation fees could also be applied on debtors’/creditors’ rates (which should be the same before the fee; the fee impacts debtors and creditors negatively and positively, respectively) to remunerate with respect to the administrative functions.

There is no statutory requirement to align TP and customs valuation outcomes. They are governed by separate rules and authorities. Nevertheless, internal consistency of factual narratives and documentation (functions, risks and pricing policies) reduces controversy risk across regimes.

Following an audit, taxpayers may pursue administrative reconsideration and then bring an economic administrative claim (TEAR/TEAC). TEAC has clarified that simultaneous inspections across all parties to a related party transaction are possible under general inspection rules, and that bilateral recognition should be given where an adjustment is made first by one party. Judicial review follows in the contentious administrative courts. Suspension without pre-payment is available upon providing suitable guarantees, per general tax procedure norms. MAP remains available to relieve double taxation under treaties and the EU Arbitration Convention; the MAP Regulation is consolidated in RD 1794/2008 (as amended by, for example, RD 399/2021).

While court decisions exist, Spain’s most detailed guidance often arises from TEAC criteria and regional economic administrative courts, which address the selection of methods, comparables quality, cash pooling and correlative adjustments. These are influential in risk assessment and audit defence.

Recent TEAC decisions have:

• clarified cash pooling benchmarking, emphasising group credit risk and the administrative/treasury nature of pool leaders; and
• reaffirmed the comparability principles and bilateral consequences of primary adjustments (including recognition of the expense of the counterparty where appropriate).

Dealings with noncooperative jurisdictions can encounter deductibility limits and heightened documentation standards even for uncontrolled transactions, per RIS special rules. Taxpayers must evidence valid economic reasons and market aligned pricing.

Spain’s earnings stripping rule limits the deductibility of net financial expenses to the higher of:

• EUR1 million per year; or
• 30% of tax EBITDA (operating profit, as defined in the Corporate Income Tax Law).

Any net interest disallowed by this cap can be carried forward without time limit, while unused capacity (the headroom between 30% of tax EBITDA and the year’s net financial expenses) can generally be carried forward for five years. The limit applies at the level of the tax consolidation group, if one exists. Additional anti-avoidance rules can restrict deductions where intra-group debt is used to acquire shareholdings within the group absent valid economic reasons. This interest limitation regime operates in parallel with TP: even if interest is within the 30% cap, the rate and terms must still be arm’s length. Conversely, an arm’s length rate may still face partial disallowance if the 30% cap is exceeded.

The same heightened standards apply to related party transactions with noncooperative jurisdictions; TP documentation (master file and local file), CbC reporting and Model 232 disclosures interact with these rules.

Spain does not apply a general safe harbour simply because another country restricts payments. Foreign legal constraints may be considered factually in delineation and risk allocation but do not replace Spain’s domestic TP analysis.

The Spanish Tax Administration only publishes general information about the number of APAs negotiated or initiated in a specific year for statistical purposes. No other information is available. General information is made public in respect of the collection of each type of tax, but no details are disclosed.

The use of secret comparables is not permitted in Spain; the data used by the tax authorities needs to be disclosed to the taxpayer in order to make an adjustment.