European Court’s Hornbach-Baumarkt ruling gives clarity on arm’s-length principle

International Tax Review is part of Legal Benchmarking Limited, 4 Bouverie Street, London, EC4Y 8AX

Copyright © Legal Benchmarking Limited and its affiliated companies 2025

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

European Court’s Hornbach-Baumarkt ruling gives clarity on arm’s-length principle

Hammer and book

Taxpayers will be able to argue more effectively against transfer pricing readjustments following a key ruling on the arm’s-length principle in the Hornbach-Baumarkt case.

gavel.jpg

The ruling indicates some flexibility in the arm’s-length principle

Taxpayers will be able to argue more effectively against transfer pricing readjustments following a key ruling on the arm's-length principle in the Hornbach-Baumarkt case.

The ECJ ruled that member state tax rules are proportionate (and therefore in line with EU law), saying taxpayers in the EU have the right to demonstrate that they may have had commercial reasons for failing to meet the standard required of the arm's-length principle.

"This is an important point because the issue has been litigated extensively before," said Kelly Stricklin-Coutinho, barrister at 39 Essex Chambers in London.

Facts of the case

This time, the ECJ ruled on a transfer pricing dispute between Hornbach-Baumarkt-AG and the Finanzamt Landau in Germany.

Hornbach had provided free loan guarantees to its Dutch foreign subsidiary. The German parent, in turn, was audited, with the tax authorities adjusting the company's profits upwards.

The German parent company then challenged this at the Landau tax court, alleging that Germany's tax rules breached the EU's freedom of establishment clausebecause German tax authorities were only applying the rules on cross-border transactions, but not on similar national transactions. Also, the German tax law didn't allow taxpayers to supply evidence justifying the transfer pricing issue.

"The ECJ went further than prior case law," said Mario Tenore of Maisto e Associati in Milan. "Previously, courts have held that transfer pricing legislation could be restrictive in some cases."

"The wording of the ECJ's judgment in the Thin Cap [group litigation] was sufficiently ambiguous that the parties were willing to litigate this to the Court of Appeal," said Stricklin-Coutinho. The ECJ has dealt with this issue again, in the Société de Gestion Industrielle (SGI) case. The ECJ appears to take a different approach in this case than it did previously."

Though earlier rulings were seen as contrary to the EU's freedom of establishment rule, national tax courts in the EU went along with this logic in order to prevent profit shifting and tax evasion. In Hornbach-Baumarkt, the court actually affirmed this principle, saying that as long as taxpayer is given the right to provide evidence of a commercial justification behind the setting of intra-group pricing at a level lower than what would be agreed upon between unrelated parties, then some restrictions are justified.

Impact for taxpayers

Tax practitioners told ITR that the ruling can be seen as an opening from the ECJ giving leeway to taxpayers to raise an argument based on shareholder or group benefit during the course of an audit. To that end, it could give companies the chance to explain why prices have been set below market rates or why there wasn't specific remuneration for a given intragroup services, like the provision of guarantees.

Furthermore, the court opened the door for taxpayers to argue that they have set prices below the arm's-length principle due to their own specific shareholder situations. It doesn't oblige tax authorities to except the taxpayer's justification, though.

"Again, what the ECJ ruling really does is confirm the SGI case," said Diana Weyrauch, senior manager of business tax at Deloitte in Munich. "To that end, it's not surprising."

Weyrauch suggested that, ultimately, the ruling will mean that certain German-based multinationals may not have apply the arm's-length principle if there are good economic reasons to avoid doing so. Those reasons needn't be tax justifications; they could be other economic reasons. Ultimately, though, the decision to accept the tax rationale will be that of a local tax court, Weyrauch explained.

"[The ECJ] said clearly it's up to local courts to decide," Weyrauch said. "But there is always a risk that tax authorities will attack what they are doing unless they can receive guidance from tax authorities."

Stricklin-Coutinho agreed, adding: "No doubt multinationals will consider the judgment carefully for its implications on their current arrangements. While the case refers specifically to guarantees, the principle in the case will be of broad application."

Although Hornbach-Baumarkt specifically concerned a guarantee given without consideration, the issue of a taxpayer's ability to prove commercial purpose to a transaction even if they do not comply with the arm's-length principle "is one which goes to the heart of transfer pricing law", said Stricklin-Coutinho. "It is also relevant to other taxes where commercial purpose is a feature of the rules, such as CFC rules."

more across site & shared bottom lb ros

More from across our site

PwC Ireland has also called for simplifying Ireland’s tax code and a reduction in its capital gains tax in a pre-budget submission
Effective audit management requires more than documentation; it’s the way taxpayers engage that can shape audit direction, manage procedural ambiguity, and preserve options for appeal or litigation
American advisers are falling short of client expectations when it comes to providing value-added services, but remaining tight-lipped won’t make the problem go away
Awards
The Social Impact Awards unveil new categories to reflect a changing legal and social landscape
Australia's approach to tax policy has undergone significant shifts in recent years, reflecting global trends and unique domestic considerations. These developments merit close attention from tax professionals
The UK has temporarily dodged the 50% rate due to a trade deal signed with the US in May; in other news, Ryan acquired a Northern Irish tax firm
Following a $28 million funding round, Aibidia wants to ‘double down’ on the US market via partnerships with the ‘big four’, the Finnish TP tech provider’s CEO tells ITR
The Luxembourg-based TP leader tells ITR about relishing the intellectual challenge of his practice, his admiration for Stephen Hawking, and what makes tax cool
The case to determine whether the tariff regime is constitutional will eventually find its way to the US Supreme Court, ITR has also heard
In other news, the Council of the EU pledged support to a CBAM simplification and exemption initiative, and Portugal issued new VAT filing guidance
Gift this article