Germany: German Federal Tax Court rules disallowance of write-down for related-party debt violates OECD model treaty

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

Germany: German Federal Tax Court rules disallowance of write-down for related-party debt violates OECD model treaty

Linn-Alexander-100
Braun-Thorsten-100

Alexander Linn

Thorsten Braun

The German Federal Tax Court (Bundesfinanzhof, BFH) issued a decision (case ref. I R 29/14) on September 9 2015, in which it held that the domestic transfer pricing rules may not be applied to disallow a write-down of an impaired related-party debt in a case where a relevant tax treaty includes the arm's-length standard provisions of Article 9 of the OECD model treaty.

Until 2007, German multinationals could claim a deduction for bad debts on loans granted to subsidiaries if the subsidiary did not perform as planned and the debt was impaired. As from 2008, write-downs of related-party loans are non-deductible under specific rules in the German Corporate Tax Act, unless it can be demonstrated that the loan was granted in line with (a very narrow interpretation of) the arm's-length principle.

In an effort to extend the general presumption of non-deductibility to the years before 2008, the German tax authorities challenged a 2002 write-down of a substantial unsecured debt owed by an undercapitalised UK subsidiary of a German entity of a Canadian group. The tax authorities argued that the German transfer pricing rules disallowed the write-down because either the loan was not granted on arm's-length terms, or the loan was not impaired because the subsidiary still could rely on the financial backing from its group, as long as it paid its third-party lenders.

The BFH confirmed a previous decision (case ref. I R 23/13) and emphasised that it may be in line with the arm's-length principle not to require collateral from a group subsidiary when granting a loan, and that it still may be possible to consider such a debt to be impaired if the subsidiary experiences financial difficulties. The BFH also confirmed that, where a tax treaty includes Article 9, paragraph 1 of the OECD model (as is the case with most German tax treaties), the domestic transfer pricing provisions may not disallow the write-down, since Article 9 permits only income adjustments relating to the conditions of the loan (for example, the interest rate); it does not permit the disallowance of a write-down. It is unclear if the same reasoning may be applied to years from 2008, where the deduction for a write-down is generally disallowed for reasons unrelated to the transfer pricing framework.

Alexander Linn (allinn@deloitte.de) and Thorsten Braun (tbraun@deloitte.de)

Deloitte

Tel: +49 89 29036 8558 and +49 69 75695 6444

Website: www.deloitte.de

more across site & shared bottom lb ros

More from across our site

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
Hany Elnaggar examines how AI is reshaping tax administration across the Gulf Cooperation Council, transforming the taxpayer experience from periodic reporting to continuous compliance
The APA resolution signals opportunities for multinationals and will pacify investor concerns, local experts told ITR
Businesses that adopt a proactive strategy and work closely with their advisers will be in the greatest position to transform HMRC’s relief scheme into real support for growth
The ATO and other authorities have been clamping down on companies that have failed to pay their tax
Gift this article