Transfer Pricing Adjustments and VAT: Stellantis Portugal

On 13 May 2026, the Court of Justice of the European Union (CJEU) delivered its judgment in Stellantis Portugal (Case C‑603/24), aligning with Advocate General Kokott’s Opinion of 15 January 2026. The ruling provides clarification on the interaction between transfer pricing (TP) adjustments and VAT, a long-standing area of uncertainty for multinational groups. The case focuses on whether those adjustments can be consideration for a separate service.

 

The dispute

Stellantis Portugal (formerly General Motors Portugal, “GMP”) purchased vehicles from group OEMs (Original Equipment Manufacturers) and resold them to dealers in Portugal. Under a 2004 intra-group agreement, prices were periodically adjusted through credit or debit notes to ensure GMP achieved a target operating margin, calculated by reference to its overall operating and distribution costs, including (but not limited to) the cost of warranty repairs. The local dealers would carry out the repairs and charge the GMP who would in turn notify the OEMs of the adjustments required to the intra-group sale price of the car under the 2004 agreement.

The Portuguese tax authorities recharacterized these adjustments as consideration for taxable repair services allegedly supplied by GMP to the OEMs, issuing VAT assessments exceeding EUR1.5 million.

 

The Advocate General’s framework

AG Kokott emphasized the need to clarify the TP/VAT interplay and distinguished three scenarios:

1. Genuine services: where services are contractually agreed and supplied, they are taxable.
2. Unilateral adjustments by tax authorities: reallocations of profits made solely for income tax purposes do not affect agreed consideration and have no VAT consequences.
3. Contractual variable price mechanisms: where the price is “undetermined but determinable”, subsequent adjustments simply recalibrate the consideration for existing supplies and should follow the VAT treatment of those supplies.

 

The Court’s judgment

The Court held that the TP adjustments at issue did not constitute consideration for a taxable supply of repair services. This was because there was no direct link between the repairs and the TP adjustments. The TP adjustments were (i) provided for in an intra-group agreement to ensure a certain target margin, (ii) documented through credit or debit notes, and (iii) calculated by reference to the purchaser’s total costs. For VAT to arise on the repairs, the contract would need to provide for identifiable services in exchange for consideration.

The decision is grounded in the fundamental VAT requirement for there to be a direct link between a supply and consideration within a legal relationship involving reciprocal performance. The Court found this test was not satisfied:

• No contractual obligation to supply services: the only legal relationship concerned the pricing of vehicle sales. There was no contractual provision under which GMP agreed to provide repair services (or any other services) to the OEMs;
• Adjustments reflected overall costs: the margin adjustment included GMP’s entire operating cost base (staff, marketing, utilities, etc.), not solely warranty repairs. Any link between repairs and the adjustment was therefore, at most, indirect, and;
• Uncertainty of remuneration: the bi-directional nature of the adjustments meant that neither the existence nor the amount of payment for the repairs could be determined in advance. This uncertainty broke the direct link required under established case law (e.g., Arcomet Towercranes). For a direct link to be established, the remuneration for the service could not be "gratuitous, contingent or difficult to quantify".

 

Implications for taxpayers

The judgment confirms previous jurisprudence whereby intra-group profit allocation mechanisms designed for income tax purposes do not, in themselves, give rise to consideration for separate VAT taxable transactions.

However, the Court highlighted a key caveat: where a contractual arrangement establishes reciprocal obligations for services in exchange for TP adjustments, a different VAT analysis may apply, as was the case with Arcomet where there was a clear obligation to provide services.

Importantly, the ruling does not render TP adjustments without VAT implications. Where the adjustments modify the consideration for the original transaction:

• downward adjustments reduce the taxable amount of identifiable supplies (potentially requiring VAT corrections), and;
• upward adjustments increase the taxable amount.

The TP adjustments themselves may still change the taxable base of the underlying supplies of goods or services where these are identifiable.

 

Conclusion

Stellantis Portugal confirms the clear principle that TP adjustments are only consideration for a supply if there is a direct link between the adjustments and the supply. The contractual documentation is critical to evidence this link. The question of whether TP adjustments create a need to make VAT adjustments to the original supply should be assessed separately. For multinational groups, the priority is to review intra-group agreements and ensure consistency in documentation. For ongoing disputes, the judgment provides robust support against attempts to subject TP adjustments to VAT as consideration for separate services, where there is no direct link.