What the 21 September notice actually says
Taiwan Customs Administration published the notice on 21 September 2026 and states that amendments to parts of both the import and export advance cargo declaration manuals take effect on 1 October 2026. The notice adds and revises specified manual sections. It also says the separate “long-form import/export declaration simplification procedure” stops applying on the same date because that procedure has been incorporated into the manuals.
This is an operational manual update, not a blanket statement that all Taiwanese customs declarations or document requirements have changed. The notice refers readers to its attachments for the affected sections. A buyer or supplier should not infer new data fields, licenses, taxes or product restrictions without checking those attachments and the applicable tariff line.
Give the broker a clear changeover instruction
Ask the Taiwan customs broker or forwarder to identify exactly which revised manual sections affect your import or export route and provide the current filing reference. If your internal checklist cites the old long-form simplification procedure, mark that reference as retired from 1 October and replace it with the relevant current manual section. Do not assume a prior template remains valid simply because a similar entry cleared earlier.
For cargo booked around the start date, record the expected declaration date, the party filing the pre-arrival information, and the version of the broker's instructions. Ask whether an already prepared entry needs review under the new manual. Keep the broker's written answer and the notice attachments with the shipment record so procurement, supplier and logistics staff use one controlled version.
Check the right scope before changing supplier documents
The official notice covers specified portions of import and export procedures; it does not say that every overseas supplier must redesign an invoice or packing list. Have the broker map any requested supplier data back to a named manual section and tell you whether it applies to the product, declaration type and transport mode. If a requested change is unclear, ask for the exact field and supporting rule before dispatch.
Use the update as a controlled-document check: remove superseded references, date the replacement checklist, assign an owner to review attachments and brief any alternate broker. This reduces avoidable rework without claiming that the change guarantees release or changes a foreign seller's obligations. Product-specific permits, valuation, origin and inspection rules remain separate checks.
Your next-order checklist
- Download the 21 September notice attachments and identify the changed import/export sections.
- Ask the broker whether each change applies to your declaration type, goods and transport mode.
- Retire references to the separate long-form simplification procedure from 1 October 2026.
- Version-control templates and written broker instructions used around the changeover.
- Keep product permits, valuation, origin and inspection checks separate from this manual update.
Sources & reference dates
- Taiwan Customs Administration — Amendments to advance cargo declaration manuals effective 1 OctoberSource published: 2026-09-21Effective: 2026-10-01
Prepared by the Yifeng Sourcing editorial team with AI assistance from the primary sources listed below. Source dates are recorded; destination-specific requirements should be reconfirmed before acting. This is not legal or tax advice.