Switzerland : Itelcar: How Switzerland may benefit from Portuguese thin capitalisation rules

International Tax Review is part of Legal Benchmarking Limited, 1-2 Paris Garden, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

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

Switzerland : Itelcar: How Switzerland may benefit from Portuguese thin capitalisation rules

schreiber.jpg

mies.jpg

René Schreiber


Hans Mies

Recently, the European Court of justice (ECJ) held in Itelcar v. Portugal (C-282/12) that Articles 63 and 65 TFEU preclude member states to have thin capitalisation rules in place that limit interest deduction restrictions to lenders resident in third states only. This ruling has lowered the barrier for residents of third states to claim the freedom of capital to the application of discriminatory thin capitalisation rules. Itelcar – Automoveis de Aluguer Lda (Itelcar), a Portuguese company entered into a loan agreement with a group company that did not have direct decisive influence. The Portuguese tax authorities deemed the interest payments excessive and denied any deduction.

At that time, Portuguese thin capitalisation rules considered interest payments non-deductible if they related to excessive overall debt and were made to a company established in a third state with which it had a special relation. The term special relation did not require a notion of control, a more economic or commercial relation suffices. Given that decisive influence was not required, the ECJ tested its compatibility with Community law against the freedom of capital instead of the freedom of establishment and could extend the access to third states (Compare Thin Cap Group Litigation (C-524/04) and Lasertec (C-492/02) in which thin capitalisation rules were assessed against its compatibility with Article 43 EC (Freedom of Establishment) given that the rules addressed "groups of companies"). In Itelcar, the ECJ evolved from Lankhorst-Hohorst v. Germany (C-324/00) meaning that no longer member states have the option to apply thin capitalisation rules to third states only. Member states should either decide to include resident companies (and member state companies) or abolish the rules completely.

Switzerland may benefit directly from this ruling considering it is unlikely that member states will decide to abolish their thin capitalisation regimes. In respect to thin capitalisation rules that do not refer to a notion of control, Switzerland is entitled to a treatment equal to member states. Member states that have not already adapted their thin capitalisation regime to Itelcar should do so in the next coming period. This should enable residents of third states (including Switzerland) to directly benefit from the change in legislation caused by Itelcar.

René Schreiber (rschreiber@deloitte.ch)

Tel: +41 58 279 7216
Hans Mies (hmies@deloitte.ch)

Tel: +41 58 279 7470

Deloitte

more across site & shared bottom lb ros

More from across our site

Overall revenues for the combined UK and Swiss firm inched up 2% to £3.6 billion despite a ‘challenging market’
In the first of a two-part series, experts from Khaitan & Co dissect a highly anticipated Indian Supreme Court ruling that marks a decisive shift in India’s international tax jurisprudence
The OECD profile signals Brazil is no longer a jurisdiction where TP can be treated as a mechanical compliance exercise, one expert suggests, though another highlights 'significant concerns'
Libya’s often-overlooked stamp duty can halt payments and freeze contracts, making this quiet tax a decisive hurdle for foreign investors to clear, writes Salaheddin El Busefi
Eugena Cerny shares hard-earned lessons from tax automation projects and explains how to navigate internal roadblocks and miscommunications
The Clifford Chance and Hyatt cases collectively confirm a fundamental principle of international tax law: permanent establishment is a concept based on physical and territorial presence
Australian government minister Andrew Leigh reflects on the fallout of the scandal three years on and looks ahead to regulatory changes
The US president’s threats expose how one superpower can subjugate other countries using tariffs as an economic weapon
The US president has softened his stance on tariffs over Greenland; in other news, a partner from Osborne Clarke has won a High Court appeal against the Solicitors Regulation Authority
Emmanuel Manda tells ITR about early morning boxing, working on Zambia’s only refinery, and what makes tax cool
Gift this article