The European Commission favours the introduction of a consolidated corporate tax base to overcome the distortions arising from the existing system of separate accounting. The blueprints for consolidation are simulated with the applied general equilibrium model CORTAX. We show that the benefits of a common consolidated tax base are limited due to two weaknesses. Formula apportionment, which is needed to allocate the consolidated taxable profits across jurisdictions, creates for MNEs new tax planning possibilities to exploit tax rate differentials in the European Union. In addition, it triggers tax competition as the incentives for member states to attract foreign investment by reducing their tax rates are enforced. The second weakness arises from the unlevel playing field, which is introduced if only part of the firms chooses to participate in the consolidation. The gains from consolidation can be fully grasped if it is obliged for all firms and accompanied by harmonisation of the tax rate.
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Find related papers by JEL classification: H87 - Public Economics - - Miscellaneous Issues - - - International Fiscal Issues; International Public Goods H21 - Public Economics - - Taxation, Subsidies, and Revenue - - - Efficiency; Optimal Taxation H25 - Public Economics - - Taxation, Subsidies, and Revenue - - - Business Taxes and Subsidies F21 - International Economics - - International Factor Movements and International Business - - - International Investment; Long-Term Capital Movements
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Leon Bettendorf & Albert van der Horst, 2006.
"Documentation of CORTAX,"
CPB Memoranda
161, CPB Netherlands Bureau for Economic Policy Analysis.
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