OECD/G20 Base Erosion and Profit Shifting Project – Countering Harmful Tax Practices More Effectively, Taking into Account Transparency and Substance. More than 15 years have passed since the publication of the Organisation for Economic Co-operation and Development’s (OECD) 1998 Report Harmful Tax Competition: An Emerging Global Issue and the underlying policy concerns expressed then are as relevant today as they were then. Current concerns are primarily about preferential regimes that risk being used for artificial profit shifting and about a lack of transparency in connection with certain rulings. The continued importance of the work on harmful tax practices was highlighted by the inclusion of this work in the Action Plan on Base Erosion and Profit Shifting (BEPS Action Plan, OECD, 2013), whose Action 5 committed the Forum on Harmful Tax Practices (FHTP) to: Revamp the work on harmful tax practices with a priority on improving transparency, including compulsory spontaneous exchange on rulings related to preferential regimes, and on requiring substantial activity for any preferential regime. It will take a holistic approach to evaluate preferential tax regimes in the BEPS context. It will engage with non-OECD members on the basis of the existing framework and consider revisions or additions to the existing framework. In 2014, the FHTP delivered an initial progress report, which is incorporated into and superseded by this final report. The main focus of the FHTP’s work has been on agreeing and applying a methodology to define the substantial activity requirement to assess preferential regimes, looking first at intellectual property (IP) regimes and then other preferential regimes. The work has also focused on improving transparency through the compulsory spontaneous exchange of certain rulings that could give rise to BEPS concerns in the absence of such exchanges. Requiring substantial activity for preferential regimes Countries agreed that the substantial activity requirement used to assess preferential regimes should be strengthened in order to realign taxation of profits with the substantial activities that generate them. Several approaches were considered and consensus was reached on the “nexus approach”. This approach was developed in the context of IP regimes, and it allows a taxpayer to benefit from an IP regime only to the extent that the taxpayer itself incurred qualifying research and development (R&D) expenditures that gave rise to the IP income. The nexus approach uses expenditure as a proxy for activity and builds on the principle that, because IP regimes are designed to encourage R&D activities and to foster growth and employment, a substantial activity requirement should ensure that taxpayers benefiting from these regimes did in fact engage in such activities and did incur actual expenditures on such activities. This same principle can also be applied to other preferential regimes so that such regimes would be found to require substantial activities where they grant benefits to a taxpayer to the extent that the taxpayer undertook the core income-generating activities required to produce the type of income covered by the preferential regime. Improving transparency In the area of transparency, a framework covering all rulings that could give rise to BEPS concerns in the absence of compulsory spontaneous exchange has been agreed. The framework covers six categories of rulings: (i) rulings related to preferential regimes; (ii) cross border unilateral advance pricing arrangements (APAs) or other unilateral transfer pricing rulings; (iii) rulings giving a downward adjustment to profits; (iv) permanent establishment (PE) rulings; (v) conduit rulings; and (vi) any other type of ruling where the FHTP agrees in the future that the absence of exchange would give rise to BEPS concerns. This does not mean that such rulings are per se preferential or that they will in themselves give rise to BEPS, but it does acknowledge that a lack of transparency in the operation of a regime or administrative process can give rise to mismatches in tax treatment and instances of double non-taxation. For countries which have the necessary legal basis, exchange of information under this framework will take place from 1 April 2016 for future rulings and the exchange of certain past rulings will need to be completed by 31 December 2016. The Report also sets out best practices for cross-border rulings. Review of preferential regimes A total of 43 preferential regimes have been reviewed, out of which 16 are IP regimes. The Report contains the results of the application of the existing factors in the 1998 Report, as well as the elaborated substantial activity and transparency factors, to the preferential regimes of members and associates. However, the elaborated substantial activity factor has so far only been applied to IP regimes. In respect of substantial activity the IP regimes reviewed were all considered inconsistent, either in whole or in part, with the nexus approach as described in this report. This reflects the fact that, unlike other aspects of the work on harmful tax practices, the details of this approach were only finalised during the BEPS Project while the regimes had been designed at an earlier point in time. Countries with such regimes will now proceed with a review of possible amendments of the relevant features of their regimes. The FHTP’s work on reviewing preferential regimes will continue, recognising also that regimes that were assessed before the substantial activity requirement was elaborated may need to be reassessed. Next steps The elements of a strategy to engage with countries other than OECD Members and BEPS Associates in order to achieve a level playing field and avoid the risk that the work on harmful tax practices could displace regimes to third countries is outlined in the Report, together with the status of discussions on the revisions or additions to the existing framework. These aspects of the work will be taken forward in the context of the wider objective of designing a more inclusive framework to support and monitor the implementation of the BEPS measures. An ongoing monitoring and review mechanism covering preferential regimes, including IP regimes, and the transparency framework has been agreed and will now be put in place.