The fifth edition of Concise Income Tax continues to provide a comprehensive, yet succinct, examination of the most important areas of income taxation law. Almost every chapter in the book has had to be updated to reflect changes. In the context of tax administration these include the expansion of the types of non-ruling ATO advice, the calculation of the Medicare levy and taxation of closely held trusts. Legislative amendments have impacted on, inter alia, non-commercial losses, non-commercial loans, the taxation of termination payments and capital gains, the definition of small businesses and the deductibility of capital allowances. Judicially there have been new key cases, including in relation to the taxation of compensation payments, the composition of business activities, the deductibility of expenses related to such activities and the timing of deductions. The new edition also includes a discussion of the federal government's key proposals stemming from the recommendations of the Henry review.