CPA Statutory Audit
ตรวจสอบบัญชีโดย CPA · § Audit
Quick Answer
Annual audit by a TFAC-licensed CPA — planning, substantive testing, bank/AR confirmations, Auditor's Report + financials + SorBorChor.3/3/1 filed with DBD — from THB 15,000 (dormant) to THB 150,000+ (operating SME).
Timeline: Document gathering 30d · fieldwork 15–30d · draft financials + management letter 15d · file with DBD within 5 months of fiscal year-end.
Official fee: DBD filing fee THB 200 (e-Filing) or THB 400 (paper). Late filing THB 2,000 + THB 200/month, on both company and directors.
Legal Basis
Accounting Act B.E. 2543 §11, §21 + Accounting Profession Act B.E. 2547 — every Thai Limited Company (any size) must be audited by a licensed CPA. Registered partnerships with capital > THB 5M included. Audit under Thai Standards on Auditing (TSA) 200–800 series.
Who Needs This
All Thai Limited Companies (trading or dormant) · registered partnerships with capital > THB 5M · BOI companies (annual audit + specific auditor opinion) · public companies (PAEs mandatory).
Required Documents
- Trial Balance + General Ledger for 12 months
- Tax reports PP.30 / PND.1/3/53 for all 12 months
- Bank statements + bank confirmations
- Inventory listing + physical count sheets
- Material contracts (loan, lease, related party)
Common Pitfalls
- No physical inventory count on 31 Dec → CPA issues Qualified Opinion
- Under-disclosed related-party transactions → RD reinterprets as Transfer Pricing
- Dormant company skipping 3 consecutive annual filings → DBD strikes off
- Rotating CPA every year → raises RD suspicion
Typical Use-cases
- Newly-incorporated limited company finishing first year
- Dormant shell company keeping registration active
- BOI company submitting the required annual auditor's opinion
- Company preparing for M&A / due diligence
FAQ
- Do dormant companies really need an audit?
- Yes. Thai law does not exempt dormant companies like the UK. A CPA must issue an opinion every year even for 'nil transactions'. Dormant package from THB 15,000 (includes DBD filing).
- Can the CPA cover offices in the provinces?
- Yes — a CPA with a 4–7-digit TAP licence practises nationwide. We dispatch auditor + assistant to your factory/office for fieldwork.
- How is the audit fee calculated?
- Guided by TFAC benchmarks: THB 15K (dormant); THB 30–60K (SME < THB 30M sales); THB 80–150K (THB 30–200M); THB 200K+ (> THB 200M). Fixed-fee guarantee.
- How soon must financials be delivered to shareholders?
- AGM must be held within 4 months of year-end. Financials must be circulated to shareholders at least 7 days before AGM. File with DBD within 1 month after AGM (5 months total).
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