Auditing Auditing by a Certified Public Accountant Providing auditing services in accordance with TFRS. We had an experience working in auditing with Big4 auditing firm in Thailand The Law requires entities to prepare Financial Statements and must be audited and certified by a Certified Public Accountant (CPA) annually. Starting price 6,000 Baht (Yearly) *** Audit fee may vary and depend on many factors.