Corporate tax revenues in OECD countries

This paper studies variation among OECD countries in the size of corporate income tax revenues relative to GDP over the time period 1979-2002. A decomposition explains such variation as a function of the statutory tax rate, the breadth of the tax base, corporate profitability, and the share of the corporate sector in GDP. Empirical results indicate a parabolic relationship between tax rates and revenues, implying a revenue-maximizing corporate income tax rate of 33% for the whole sample. This revenue-maximizing rate is found to decrease as economies are smaller and more integrated with the world economy.