This report analyzes the income tax return of Joe Harper, an electrician and contractor, for the year 2018-19, focusing on Australian taxation law and the Income Tax Assessment Act 1997. It details the calculation of Joe's taxable income, including income from business and profession ($150,000), house property ($47,795), and other income ($1,250), along with capital gains. The report examines allowable deductions such as council rates, insurance, repairs, and charitable donations, totaling $5,900. Capital gains tax implications are discussed, considering the sale of shares, personal assets like a car and speedboat, and paintings. The final income tax return shows a total assessable income of $449,045, a taxable income of $443,145, and a total tax payable of $107,672.22, including Medicare levy. The report provides a comprehensive overview of the tax provisions and calculations relevant to Joe Harper's financial situation.