Financial Audit in Thailand.

Financial audit in Thailand: beyond the annual requirement

A financial audit in Thailand is any audit of financial statements commissioned for a reason other than the annual filing the law requires. The mandatory yearly audit of a company's statements is the statutory audit, covered on its own page; this page covers the audits a company chooses, or is contractually required, to buy on top of it.

The most common triggers are a foreign parent that needs the Thai subsidiary's numbers audited under group rules, a contract or transaction that needs one specific statement examined, and a bank that made an audit a condition of lending. The signature requirement does not change: the opinion comes from a certified public accountant licensed under the Accounting Professions Act B.E. 2547, working to the auditing standards set by the Federation of Accounting Professions (TFAC), the body that issues and can suspend or revoke audit licenses.

The three common engagements

Group reporting packages. A Thai subsidiary of a foreign group usually reports twice: once under Thai rules for the statutory cycle, and once in the parent's format for consolidation. The group package audit follows the parent's timetable, the group auditor's instructions, and often a different accounting framework and materiality level than the Thai statutory file, which is why the same year can produce two genuinely different audits of the same company.

Special purpose audits. Sometimes only one thing needs an opinion: a single financial statement, a specific period, a royalty or revenue figure under a contract, or accounts prepared on a basis a regulator or counterparty prescribes. The scope is defined by whoever needs the opinion, and the report is addressed to them.

Lender-requested audits. Facility agreements often require audited accounts on the lender's schedule, sometimes more frequently or earlier than the statutory calendar delivers. The deadline here is contractual, so the engagement is planned backwards from the covenant date rather than from any filing rule.

When a second audit is worth paying for

If a parent, regulator, or lender requires the audit, the only real decision is who does it and whether one firm can serve both the statutory and the extra scope; combining them with the same audit firm usually removes a whole round of fieldwork. Reviews of internal controls and processes are a different service again, covered under internal audit, and accounting firms in Thailand often prepare the reporting package the auditors then examine. Fees follow scope, so a firm quotes after seeing the framework, the deadline, and the state of the books.

This page is general information, not legal advice. Standards, requirements, and procedures change; for a specific company, speak with a qualified professional.