Optimal tax and tariff policies with tax credits

This paper examines the optimal tax and tariff policies for a small open economy when mobile capital receives a tax credit for taxes paid to the host country. For a capital-importing country, a tax on capital equal to the source country tax rate (to capture tax revenue) combined with a subsidy to encourage capital imports is the optimal policy. Results are also derived for cases in which only one of the instruments can be varied. For a capital-exporting country that cannot reduce its capital tax rate, a subsidy to the sector using exported capital is desirable.