The chapters in this book, each written by thought leaders in their field, cover the wide range of developments currently exercising those involved in planning, implementing and monitoring tax administration systems around the world. Includes insights from OECD and from the highest levels in national tax authorities from USA, Australia, New Zealand and UK. Discussion in this collection cover topics such as efficiency issues and tax returns, tax simplification, compliance cost management, innovative apporaches to anti-avoidance, tax evasion management, integration of tax services. Is an important tool for tax professionals, academics, researchers, tax administrators, students of taxation policy and practice.