
In import-export operations, the Commercial Invoice is one of the most important documents in a customs file. It is the basis for the Customs authority to determine the customs value, assess duties, verify transaction details and cross-check with other documents. Even a small error on the Commercial Invoice can lead to a request for supplementary documents, a physical inspection, delayed clearance or numerous costs such as container demurrage, storage fees and document amendment fees.
Therefore, drafting and carefully checking the commercial invoice before shipping is a key factor in reducing risk during import-export. The article below summarizes the Commercial Invoice mistakes that most easily get goods held and explains how to prevent them.
What Is a Commercial Invoice?
A Commercial Invoice is an invoice issued by the seller to the buyer that shows information such as: the Exporter, the Importer, a description of the goods, quantity, unit price, total value, delivery terms (Incoterms), payment terms, and origin (if shown).
The Commercial Invoice is used to: declare goods to Customs, calculate import-export duties, make international payments, apply for a C/O, and serve as a basis for resolving commercial disputes.

Why Is the Commercial Invoice Important?
The Customs authority will cross-check the Commercial Invoice against:
- The Packing List.
- The Bill of Lading / Air Waybill.
- The customs declaration.
- The foreign trade contract.
- The Certificate of Origin.
- Specialized licenses (if any).
If there are discrepancies between the documents, the business may be asked to provide an explanation or have the goods physically inspected.
1. Wrong Name or Address of the Buyer or Seller
One of the most common errors is:
- Misspelling the company name.
- Missing the legal name.
- Wrong address.
- Wrong tax code or company information.
These mistakes can prompt Customs or the bank to require the documents to be corrected before processing continues. How to prevent it
- Check the information against the business registration certificate or the foreign trade contract.
- Keep the information consistent across all documents.
2. Description of the Goods Too Generic
- Many businesses write only: Spare Parts, Machinery, Food, Chemical, and so on. These descriptions are not clear enough.
- Instead, the invoice should show: the trade name, category, model, specifications, material and function (if needed). The clearer the description, the smoother the inspection and classification of the goods.

3. Wrong or Missing Quantity
If the quantity on the Commercial Invoice does not match the Packing List, Bill of Lading or customs declaration, Customs may require a physical inspection of the goods or an explanation. Businesses need to check each line item carefully before issuing the invoice.
4. Wrong Unit Price or Total Value
Errors in the value of the goods can lead to:
- An incorrect declared customs value.
- The wrong amount of duty payable.
- A required value consultation.
- A post-clearance audit.
In particular, if the declared price is unusually low compared with the Customs database, the shipment may be assessed as high risk.
5. Delivery Terms (Incoterms) Not Stated
The Commercial Invoice should clearly state the delivery terms, such as: EXW, FOB, CIF, CFR, DAP, DDP, and so on. Missing Incoterms make it difficult for Customs to determine which costs are included in the price of the goods, which in turn affects the determination of the dutiable value.
In addition, businesses should state the full version of Incoterms applied, for example: FOB Ho Chi Minh City – Incoterms® 2020.
6. Missing Payment Terms
Payment information helps demonstrate the transparency of the transaction. The Commercial Invoice should clearly state: T/T, L/C, D/P, D/A, advance or deferred payment, and so on. This is important for transactions that require payment through a bank.
7. Wrong Payment Currency
In some cases: the contract states USD, but the invoice states EUR, and the customs declaration is in USD. This inconsistency can cause difficulties in determining the customs value and in international payment.

8. Missing Commercial Invoice Date or Number
The Commercial Invoice needs:
- An Invoice Number.
- An Invoice Date.
Missing this information will affect:
- Customs declaration.
- Payment.
- Document retention.
- Document cross-checking.
9. Information Not Matching Other Documents
This is a common error. The following information must be consistent: product name, quantity, weight, delivery terms, buyer, seller, country of origin, value of the goods, and so on. Just one inconsistent detail can force a business to correct documents or provide an explanation to Customs.
10. Missing Signature or Stamp (When Required)
Depending on each country's regulations or a partner's requirements, the Commercial Invoice may need: the signature of an authorized person and the company stamp. Businesses should check the requirements of the customer, the bank and the importing country before issuing the document.
Consequences of Errors on a Commercial Invoice
An inaccurately prepared commercial invoice can lead to:
- Delayed clearance.
- Goods held at the port.
- Assignment to the yellow or red channel.
- Container demurrage fees.
- Storage fees.
- Document amendment costs.
- Delayed delivery.
- The risk of administrative penalties for incorrect declaration.
For high-value shipments or those delivered on a project schedule, these costs can significantly affect business performance.

How to Check a Commercial Invoice Before Issuing It
To reduce errors, businesses should build a checking process with the following steps:
- Check company information: seller name, buyer name, address, tax code (if needed).
- Cross-check against the contract: delivery terms, payment terms, payment currency, contract value.
- Cross-check against the Packing List: product name, quantity, weight, specifications.
- Check the figures: unit price, total amount, calculations, taxes and surcharges (if any).
- Check the format: invoice number, issue date, signature, company stamp (if needed).
Applying a checklist before issuance significantly reduces the risk of errors.
Some Notes on Preparing a Commercial Invoice
- Use language consistent with the contract.
- Do not abbreviate product names in ways that could cause confusion.
- State the unit of measure in full.
- Clearly show Incoterms® 2020.
- Check spelling and figures.
- Keep both soft and hard copies for cross-checking when needed.

Conclusion
The Commercial Invoice is the basis for Customs to determine value, assess duties and verify validity. Small errors such as a wrong product name, wrong quantity, missing Incoterms or inconsistency with the Packing List can all get goods held, delay clearance and generate many unnecessary costs.
Businesses should therefore build a process to check the Commercial Invoice before issuing it, while coordinating closely with the import-export team, accounting and the Freight Forwarder to ensure all information is accurate and consistent. If you are looking for a reputable, high-quality provider of end-to-end customs services, contact Embassy Freight right away via Hotline: 0936 911 656 for the earliest possible consultation and quotation!
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