This study guide covers the Accounting and Finance ATAR Units 3 and 4. The purpose of this guide is to assist students in their preparation for tests and examinations in the ATAR Accounting & Finance course for year 12 students. The guide has deliberately been kept short so that students use it and view it as a manageable revision tool and not just one kept to the side. The structure of the topics will allow students to use the book throughout the year. Each chapter starts with a checklist taken from the W.A. School Curriculum and Standards Authority ATAR syllabus. The chapter then provides a summary of the required content for students to revise. Questions covering the content are provided at the end of each chapter. Answers to these questions are at the end of the book. Trial Tests covering the content for both Unit 3 and Unit 4 have also been provided at the end of the book along with full solutions. Students are advised to practise the Trial Tests and the Chapter Review Questions many times over throughout the course of the year. We hope that this study guide will help students to better understand the concepts they will encounter and to achieve greater success in the subject.