Complete customs document checklist for Thai imports — commercial invoice, packing list, Form E/D, Certificate of Origin, and destination-specific extras.

Import from Thailand: Customs Clearance & Documents 2026

Missing one document delays customs release by 3–10 days and racks up demurrage. This is the exact document pack Thai exporters must produce for shipments to the US, EU, UK, and Australia.

Universal document pack

Commercial Invoice — HS code per line, Incoterm, currency, total
Packing List — carton count, gross/net weight, CBM per carton
Bill of Lading (B/L) or Air Waybill (AWB)
Certificate of Origin (CO) — Form D (ASEAN), Form E (ASEAN-China), or generic
Insurance Certificate (if CIF/CIP)
Fumigation Certificate — for wood packaging (ISPM-15)

FTA-preferential Certificates of Origin

Destination	Form	Duty saving vs MFN
Australia	TAFTA CO	0% on most tariff lines
Japan	JTEPA CO	0–5% on most goods
China	Form E	0% on 90%+ lines
ASEAN	Form D	0% intra-ASEAN
India	Form AI	Preferential
US	Form A (GSP)	GSP not currently renewed
EU / UK	REX registration	GSP+ category-dependent

Thailand graduated from US and EU GSP — most goods now pay MFN duty. Verify with a customs broker before pricing.

Destination-specific extras

United States

ISF 10+2 filing (24hrs before Thai loading)
FDA prior notice (food, cosmetics, medical)
FCC ID (RF electronics)
Section 301 tariff check (transshipment scrutiny is high)

European Union

EORI number
REACH declaration
CE marking + Declaration of Conformity
CPNP notification (cosmetics)
EUDR due diligence (rubber, coffee, cocoa, wood, palm oil, beef, soy)

United Kingdom

EU pack minus REX; UKCA marking transition ongoing
CDS declaration (replaced CHIEF)

Australia

Import Declaration (N10) if > AUD 1,000
Biosecurity permit (food, timber, animal products)
TAFTA concession codes

Common document errors

Error	Delay	Fix
HS code mismatch invoice vs B/L	2–5 days	Re-issue invoice
CO issued after B/L date	3–7 days	Retroactive CO from DFT Thailand
Weight discrepancy > 5%	1–3 days	Amended packing list
Missing fumigation stamp	5–14 days	Fumigate at bonded warehouse ($400–900)
Wrong Incoterm on invoice	1–2 days	Amended invoice

FAQ

Q: Who issues the Certificate of Origin? A: The Thai Department of Foreign Trade (DFT) or authorized chambers like the Thai Chamber of Commerce.

Q: How long is a CO valid? A: Typically 12 months from issue date; destination customs cares that goods arrive within the validity window.

Q: Do I need original documents or are copies enough? A: Most destinations accept e-CO and telex-release B/L. Originals still required for L/C and some Middle-East destinations.

Q: What is ISPM-15? A: International standard for wood packaging. Wood must be heat-treated or fumigated and stamped. Missing stamp = auto-quarantine at destination.