Transfer pricing is currently considered highly significant by tax administrations and taxpayers alike. Non-compliant transfer prices are regularly challenged during audits and can lead to transfer pricing adjustments, transfer pricing estimates, and penalties. The book at hand addresses the topic of transfer pricing in European tax law. It describes the current legal situation regarding transfer pricing as outlined by the OECD and selected countries, namely Germany, Austria, and Switzerland. Through literature and legal research, it analyzes the extent to which jurisprudence differs among the selected countries and whether this poses a risk for corporations concerning transfer pricing documentation. The consequence of tax authorities not recognizing transfer prices is corrections that often lead to double taxation due to a lack of bilateral consensus. Interestingly, Germany has the most comprehensive regulations on transfer pricing, followed by Austria, with minimal regulations in Switzerland. All regulations adhere to OECD guidelines, meaning there is no contradiction either to the OECD guidelines or among the regulations themselves.