The environmental benefit of tax enforcement: evidence from China

Abstract

ABSTRACT This study explores how tax enforcement contributes to the improvement of air quality. We leverage the implementation of the Golden Tax Project III in China as a quasi-natural experiment and employ a difference-in-differences framework to establish causality. The findings indicate that the average SO2 concentration in pilot cities decreased by 2.8%, and the average PM2.5 concentration decreased by 3.2%. Further analysis reveals that curbing the expansion of tax-evading firms and ensuring the government’s provision of environmental public goods are mechanisms through which stricter tax enforcement reduces air pollution. These effects are more prominent in cities characterized by a higher proportion of heavy-polluting industries, greater fiscal pressure, and a stronger preference for environmental governance.