Balancing the books or supplying a service? The VAT reality of year-end price adjustments

By Koveshni Moodley, Senior Manager AT Graphene Economics®

Can a year-end transfer pricing adjustment be treated as consideration for a supply of services and therefore be subject to VAT? That was the question before the Court of Justice of the European Union (CJEU) in Stellantis Portugal S.A. (Case C-603/24), decided on 13 May 2026.

The case considers the VAT treatment of year-end transfer pricing adjustments between affiliated entities and provides useful guidance on when such adjustments fall within the scope of VAT.

Background

Stellantis Portugal S.A. was part of a multinational automotive group and the legal successor to Opel Portugal, Lda (formerly General Motors Portugal).

The company purchased vehicles from the group’s European original equipment manufacturers (OEMs) and resold them to independent dealers.

Where vehicles exhibited manufacturing defects, were subject to warranty claims or required roadside assistance, dealers carried out the necessary repairs and invoiced Stellantis Portugal. The company treated these repair costs as part of its overall distribution costs.

Under the group’s transfer pricing policy, the OEMs determined the initial transfer prices for vehicles and accessories by working backwards from the expected resale prices to dealers, deducting a target distribution cost and a pre-agreed profit margin for each distributor. The transfer prices were then adjusted annually through debit or credit notes to ensure that distributors, including Stellantis Portugal, achieved the agreed profit margin.

The Portuguese tax authority concluded that, although Stellantis Portugal initially paid the repair invoices issued by the dealers, those costs were ultimately passed on to the OEMs through the year-end transfer pricing adjustments. It argued that these adjustments reflected warranty and repair costs and therefore constituted consideration for repair or after-sales services supplied by Stellantis Portugal to the OEMs, making them subject to Portuguese VAT.

The question before the court

The CJEU was asked to determine whether transfer pricing adjustments made to ensure that a distributor achieves a target profit margin constitute consideration for a supply of services and are therefore subject to VAT.

The court’s decision

The CJEU held that transfer pricing adjustments intended to ensure that a distributor achieves a target profit margin do not, in themselves, constitute consideration for a supply of services. A transaction qualifies as a supply of services for consideration only where there is a direct link between the service provided and the remuneration received.

In this case, the intra-group agreement regulated the transfer pricing of vehicles with the objective of ensuring that the distributor achieved a predetermined profit margin. It did not require the distributor to perform repairs on behalf of the manufacturers in exchange for remuneration.

The court therefore considered whether the transfer pricing adjustments could nevertheless be regarded as consideration for identifiable repair services.

It found that the adjustments were calculated by reference to the distributor’s overall cost base, which included a broad range of operating expenses such as staff costs, utilities, marketing and repairs. The adjustments could result in either upward or downward corrections through debit or credit notes. Importantly, the mechanism did not guarantee reimbursement of repair costs. Instead, it was designed to ensure that the distributor achieved its target level of profitability.

In these circumstances, the CJEU found that any connection between the repair activities and the transfer pricing adjustments was, at most, indirect. An indirect connection is insufficient to establish the direct link required for a supply of services to fall within the scope of VAT.

Accordingly, the court concluded that the transfer pricing adjustments could not be treated as consideration for a separate supply of services.

The CJEU did, however, leave open the possibility that such adjustments could instead constitute an adjustment to the price of the vehicles supplied by the manufacturers to the distributor. If characterised in this way, the adjustments could still have VAT implications, not as remuneration for a separate service, but as a correction to the taxable amount of the underlying supply of goods.

Key takeaways

• Year-end transfer pricing adjustments are not automatically subject to VAT.
• The decisive question is whether there is a direct link between an identifiable service and the corresponding payment.
• Even where no separate service exists, transfer pricing adjustments may still affect the taxable amount of the underlying transaction, such as the sale of vehicles in this case, and may therefore have VAT consequences.
• Businesses should carefully review their intra-group agreements and pricing mechanisms, as the VAT treatment of transfer pricing adjustments depends on the contractual arrangements and the underlying economic substance.

Overall, the VAT treatment of transfer pricing adjustments remains a complex and evolving area that requires careful analysis. Continued scrutiny by tax authorities can be expected, making proactive review and robust documentation essential.