Amazon's tax behaviours have been investigated in China, Germany, Poland, Sweden, South Korea, France, Japan, Ireland, Singapore, Luxembourg, Italy, Spain, United Kingdom, multiple states in the United States, and Portugal. According to a report released by Fair Tax Mark in 2019, Amazon is the best actor of tax avoidance, having paid a 12% effective tax rate between 2010-2018, in contrast with 35% corporate tax rate in the US during the same period. Amazon countered that it had an 24% effective tax rate during the same period.