Access to Tax Treaty Dispute Resolution Mechanisms in Cases of Abuse

Reaching a common understanding of the interpretation and enforcement of tax treaties is a desirable policy goal. It results in higher certainty and helps to increase their effectiveness thus enhancing all the purported objectives of these international agreements. In this regard, dispute resolution mechanisms within international tax law fulfil a relevant coordinating function through the amicable assessment of frictions and mismatches in tax treaty provisions. Notwithstanding, access to these remedies is sometimes denied when the tax authorities consider that the case involves tax abuse even though anti-tax abuse measures usually pose some of the most complex interpretation challenges within tax treaties. Even after the post-BEPS wide implementation of broad-based treaty anti-abuse rules – such as the principal purpose test – countries are reluctant to grant unrestricted access to dispute resolution remedies. This contribution aims at depicting the rather asymmetrical state of affairs on the access to dispute resolution remedies in instances of tax abuse. Additionally, it purports to demonstrate that there are compelling policy reasons to support granting access to both mutual agreement and arbitration procedures in these cases and to criticize the incoherencies that originate from the existing restrictions