Unilateral APAs may present significant problems for tax administrations and taxpayers alike. From the point of view of other tax administrations, problems arise because they may disagree with the APA’s conclusions. From the point of view of the associated enterprises involved, one problem is the possible effect on the behaviour of the associated enterprises. Unlike bilateral or multilateral APAs, the use of unilateral APAs may not lead to an increased level of certainty for the taxpayer involved and a reduction in economic or juridical double taxation for the MNE group. If the taxpayer accepts an arrangement that over-allocates income to the country making the APA in order to avoid lengthy and expensive transfer pricing enquiries or excessive penalties, the administrative burden shifts from the country providing the APA to other tax jurisdictions. Taxpayers should not feel compelled to enter into APAs for these reasons ...

Bilateral and multilateral APAs substantially reduce or eliminate the possibility of juridical or economic double or non taxation since all the relevant countries participate. By contrast, unilateral APAs do not provide certainty in the reduction of double taxation because tax administrations affected by the transactions covered by the APA may consider that the methodology adopted does not give a result consistent with the arm’s length principle. In addition, bilateral and multilateral APAs can enhance the mutual agreement procedure by significantly reducing the time needed to reach an agreement since competent authorities are dealing with current data as opposed to prior year data that may be difficult and time-consuming to produce ...