Thu. Oct 6th, 2022

IMF Working Paper No. 2022/187

SEPTEMBER 16, 2022

Author/Editor: Shafik Hebous, Dinar Prihardini, Nate Vernon

This paper discusses the design of excess profits taxes (EPTs) that gained renewed interest following the COVID-19 outbreak and the recent surge in energy prices. EPTs can be designed as an efficient tax only falling on economic rent, like an allowance for corporate capital, and drawing some parallels with current proposals for reforming multinationals’ taxation. EPTs can be permanent or temporary as an add-on to the corporate income tax to support revenue during an adverse shock episode. The latter reflects experiences with EPTs during and after the World Wars. Different from that era, though, profit shifting is now a challenge. Estimation using firm-level data suggest that, at present, locations of excess profit across countries are consistent with profit shifting practices by multinationals. Destination-based EPTs can address this concern. Estimates suggest that a 10 percent EPT on the globally consolidated accounts of multinationals (on top of the current corporate income tax), with the EPT base being allocated using sales, raises global revenue by 16 percent of corporate income tax revenues. The analysis suggests that international coordination would be desirable to mitigate the risks of profit shifting and tax competition. Eventually, EPTs could mark an evolution of corporate taxation toward a non-distortionary rent tax.

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