In addition to their own quality control procedures, Grant Thornton member firms are required to abide by a system of quality control that encompasses, at a minimum, the standards issued by the standard setting boards of the International Federation of Accountants, including:
- International Standard on Quality Control 1 (ISQC) 1: Quality Control for Firms That Perform Audits and Reviews of Historical Financial Information, and Other Assurance and Related Services Engagements
- International Standard on Auditing 220: Quality Control for Audits of Historical Financial Information
- IESBA Code of Ethics for Professional Accountants.
Each member firm's system of quality control is designed to provide global and national management with reasonable assurance that audit engagements are conducted in accordance with applicable professional standards and global policies and procedures.
Member firms, no matter their size, are required to have an effective internal inspection programme in place that meets the requirements of (ISQC) 1. Member firms are provided with templates to assist them in adopting their internal quality control inspection. These templates includes guidelines, work programmes, forms and examples of reports, all of which have been benchmarked to (ISQC) 1.