The assignment discusses the tax implications of a taxpayer, Bill, who derives income from the felling of trees in his plantation. It is determined that Bill's income from felling trees is assessable income, as per Subsection 6(1) of the Income Tax Assessment Act (ITAA) 1997. Furthermore, if Bill receives royalties for allowing a logging company to remove timber, this income would be considered taxable and subject to taxation in the year the trees were tended.