Start with the transaction and responsible parties
Before preparing forms, write down who is selling, who is exporting, who is importing and who will act as the customs declarant. Confirm the legal names, addresses and registration identifiers required in the countries involved. A mismatch between the invoice party and the declared party can prompt a broker query even when the physical shipment is correct. Confirm the agreed Incoterm and named place as well, because it influences who arranges transport, insurance and export or import formalities.
First-time exporters should also confirm whether they need an export registration or authorization in their own jurisdiction. Requirements vary by country and commodity, so do not rely on a checklist written for a different trade lane. Ask the broker which party must provide each identifier and whether it must appear on the invoice, declaration instruction or transport paperwork. Establishing those responsibilities early prevents last-minute requests after goods have been collected.
Build a complete commercial invoice
The commercial invoice should identify the seller and buyer, invoice date and number, currency, payment terms, shipment terms, country of origin where known, and an accurate description of each item. Include quantity, unit value, total value and any charges needed to understand the transaction. Avoid descriptions such as “parts,” “samples” or “accessories” without enough detail to identify what the product is and what it is made from. The customs broker may need product literature or technical specifications to assess classification.
Review the invoice against the purchase order and packing list before sending it. Quantities and totals should reconcile, and any no-charge goods should still have a defensible customs value. State the Incoterm with its named place and version, rather than using an abbreviation with no location. If the shipment contains products with different origins or tariff classifications, keep the line items distinct. These details help the broker prepare an accurate declaration and respond to questions with source documents.
Prepare a packing list that matches the cargo
A useful packing list connects the invoice lines to the physical packages. Show package count and type, marks or references, contents, net and gross weights, and dimensions when requested by the carrier or broker. For pallets, indicate whether they are stackable and whether the measurements include the pallet. If one shipment contains multiple purchase orders, state which order is inside each package or pallet. The documents should describe the freight that the driver and receiving team will actually see.
Weigh and measure the packed goods rather than estimating from product specifications. Freight charges, vehicle selection and customs checks can all be affected by inaccurate dimensions. Ensure package totals match the booking instruction and transport document. If cargo changes after documents are drafted, issue corrected versions to all parties rather than sending an update only to the carrier. Keep a final copy of the documents with the shipment file and use consistent references in email subjects and booking portals.
Check commodity classification, origin and controls
Tariff classification is based on the product’s characteristics and the applicable customs tariff, not simply its marketing name. Collect material composition, function, technical data and intended use so a qualified broker or trade specialist can assess the correct code. Classification can affect duty, import restrictions, statistical reporting and the need for permits. A logistics provider can coordinate information and review completeness, but the exporter or importer remains responsible for supplying accurate product facts and declarations.
Country of origin is also not necessarily the country from which the goods were shipped. Rules can depend on where a product was manufactured or substantially transformed. Preferential duty treatment may require a prescribed origin statement or certificate and supporting supplier records. Check whether the goods are controlled, subject to sanctions, dual-use rules, export licensing, health certification or other agency oversight. Where requirements are unclear, obtain advice before dispatch and do not assume the customs broker can resolve product compliance from a short invoice description.
Give the broker transport and value context
The broker may need transport mode, departure and arrival points, freight charges, insurance, currency and the value basis required by the destination rules. Confirm which charges are included in the invoice and which are shown separately. Share the draft bill of lading, airway bill or road transport reference when available, but do not wait until the final document is issued to send the commercial data for review. The broker can flag missing fields while there is still time to correct them.
Provide a clear instruction on who will pay duties and taxes and who may receive customs notices. Confirm how the broker will contact the importer if an examination, permit or clarification is required. If the importer is using a local customs account or power of attorney, establish that paperwork before the goods arrive. The exact process differs by jurisdiction, so ask the appointed broker for destination-specific instructions rather than treating this list as a universal legal checklist.
Use a repeatable document hand-off
Create one pre-dispatch pack containing the final invoice, packing list, booking details, origin evidence and any required permits or declarations. Identify the version and date on each file, and tell the forwarder which document is final. For recurring shipments, retain product data and supplier declarations in a controlled record, then confirm what has changed on each order. A small change in composition, buyer, origin or value may affect customs treatment, so do not assume last month’s data remains valid.
A simple review step can catch most preventable gaps: compare party names, shipment references, item descriptions, package count, quantity, weight, value, currency, origin and Incoterm across every document. Record any open questions and who is resolving them before the cargo is collected. If customs authorities request more information, respond through the broker with accurate supporting evidence. This disciplined process does not eliminate inspections, but it reduces avoidable errors and helps keep a first export from becoming a paperwork exercise at the border.
Frequently asked questions
Is a certificate of origin required for every export?
No. Requirements depend on destination, product and any preferential trade claim. Confirm with the destination broker or trade authority.
Who is responsible for the accuracy of customs data?
The exporter or importer responsible for the declaration must ensure its accuracy, even when a broker or logistics provider prepares or submits information on their behalf.
For lane-specific planning, see our ocean freight service, customs coordination or manufacturing logistics.