Auditing in Thailand

A financial-statement audit provides an independent opinion on whether the statements are prepared, in all material respects, under the applicable reporting framework. It is different from entering transactions, preparing a tax return or conducting an investigation into suspected fraud.

Auditors seek reasonable assurance, which is a high level of assurance but not an absolute guarantee. An audit does not promise that every error or fraud will be found, that the company is a sound investment or that the Revenue Department will never ask questions.

Management still needs to provide complete records, make appropriate accounting decisions and maintain controls. Appointing an auditor does not transfer the running of the company to that professional.

Thai limited-company financial statements normally require an annual audit. Do not assume a low turnover, a loss or a year without sales creates an exemption. An exception available to a qualifying registered partnership is a different question from the obligations of a limited company, and tax certification requirements may still need separate attention.

Ask the accountant or auditor to identify the entity-specific legal basis and any exemption being relied on. Foreign branches, promoted businesses, charities and regulated entities should not be assessed only from a generic small-company summary.

Capital-market entities can face additional requirements, including an SEC-approved auditor and separate reporting deadlines. A Thai CPA licence check alone does not establish eligibility for every regulated engagement. Use the relevant regulator’s current rules.

Obtain the proposed auditor’s full name and registration number, and check the published licence status through TFAC. If the result or a restriction is unclear, contact TFAC. Verify any additional sector approval required for the engagement.

Agree the entity and period, reporting framework, applicable auditing standards, responsibilities, expected report, timetable, fees and information access in an engagement letter. Ask how independence is addressed if the same service group also prepares records or provides other advice.

TFAC’s current standards page distinguishes effective dates and includes provisions for less complex entities. Ask the auditor which standards apply to your period and circumstances; a simpler audit approach is not the same thing as an exemption from audit.

Ask for a planning meeting before year-end if stock counts, confirmations, site visits or group reporting deadlines may matter. The auditor should explain what evidence is needed and when. Waiting until the filing week can leave important work impossible to perform as planned.

Provide a reconciled trial balance and supporting schedules, not only a folder of invoices. Agree how bank, customer and other external confirmations will be controlled. Supply contracts, loans, related-party records, tax correspondence, claims and other relevant documents through an approved secure channel.

For an opening audit or a change of auditor, identify prior-year information, opening balances and any predecessor communication required. Tell the incoming auditor about missing records and earlier qualifications rather than hoping they will not affect the new year.

Nominate a person to track requests, provide evidence and coordinate management responses. Keep a list of proposed adjustments and their effect on the accounts and tax reconciliation. A quick explanation is useful, but it may not replace the underlying evidence.

Do not invent invoices, alter external confirmations or sign a representation that you know is false. If information is unavailable, explain why and ask how it affects the work. The auditor decides whether sufficient appropriate evidence has been obtained.

Discuss disagreements before the report is due. Management can challenge an error or ask for the accounting basis, but a fee or deadline is not a reason to demand a predetermined opinion.

Check that the signed report identifies the correct entity, period and financial statements. Read the opinion and its basis, and ask the auditor to explain any qualification, inability to express an opinion, adverse conclusion, emphasis or going-concern discussion relevant to your report.

Do not describe the company as having “passed” simply because a signed document exists. The wording and the attached statements matter. If a lender, investor or authority will rely on the accounts, understand any limitation before presenting the report.

Keep the final audited statements and report together. Coordinate valid approval and the separate DBD and tax filings with the responsible people; finishing fieldwork is not evidence that those submissions were accepted.