The assignment content discusses the tax rates of three companies - JB Hi- Fi, Harvey Norman, and Flexi Group - in their respective financial years (2018). The effective tax rate is computed by dividing the income tax expense by earnings before tax. The cash tax amount is also analyzed for each company. It was found that Flexi Group has a higher cash tax rate compared to the other two companies. Additionally, the assignment provides references from various academic and professional sources on topics such as corporate reporting, accounting, finance, and sustainability.