In import and export, the C/O (Certificate of Origin) is one of the most important documents for claiming preferential tariffs under the free trade agreements (FTAs) that Vietnam has signed.
In practice, however, many businesses that meet the export conditions still fail to secure the preferential rate because of mistakes made while applying for or using the C/O.
Seemingly minor errors, such as declaring the wrong information, choosing the wrong C/O form, submitting late or failing to meet the rules of origin, can all cost a business its chance at tariff preferences, raising import costs and undermining competitiveness.
So what are the common mistakes when applying for a C/O? How can you reduce the risk and make the most of the preferences offered by FTAs? Let's find out in the article below.
What Is a C/O?
A C/O (Certificate of Origin) is a document confirming the origin of goods, issued by an authorized body or organization under the applicable rules. A C/O serves to:
- Prove the origin of the goods.
- Act as the basis for claiming preferential tariffs under FTAs.
- Meet the requirements of the importing country's customs authority.
- Support trade control and prevent origin fraud.
Why Does a C/O Matter?
If it meets all the conditions and holds a valid C/O, a business can:
- Enjoy a preferential duty rate or a 0% rate.
- Significantly reduce import costs.
- Improve price competitiveness.
- Speed up customs processing in many markets.
Conversely, if the C/O is invalid or does not meet the rules, the business may have to apply the higher standard duty rate.
1. Choosing the Wrong C/O Form
Today there are many C/O forms, each corresponding to a specific free trade agreement. For example:
- C/O Form D (ATIGA).
- C/O Form E (ASEAN - China).
- C/O Form AK (ASEAN - Korea).
- C/O EUR.1 (EVFTA, where applicable).
- Other origin certification documents under each FTA.
Choosing the wrong form can lead the importing country's customs authority to deny the tariff preference.
2. Failing to Meet the Rules of Origin
This is one of the most common causes. A business must determine whether its goods satisfy the rules of origin under the relevant FTA, for instance:
- Regional value content (RVC).
- Change in tariff classification (CTC).
- Specific processing or manufacturing operations.
- Other origin criteria under each agreement.
If the rules of origin are not met, the C/O may not be accepted.
3. Declaring the Wrong Information on the C/O
Common errors include: wrong company name, wrong address, wrong product name, wrong HS code, wrong quantity, wrong weight, wrong invoice number, wrong bill of lading number and wrong document issue date. The information on the C/O must match the other documents, such as the commercial invoice, packing list and bill of lading.
4. Submitting the C/O After the Deadline
Some agreements set a deadline for presenting the C/O in order to claim the tariff preference. If a business submits after the deadline or fails to meet the importing country's customs conditions, its right to the preference may be affected.
5. Not Keeping Records That Prove Origin
Beyond the C/O, a business needs to keep documents that prove origin, such as: raw-material purchase invoices, import documents, production records, bills of materials and manufacturing processes. These records may be requested when the competent authority inspects or verifies origin.
6. Getting the HS Code Wrong
The HS code directly affects the applicable rules of origin, the duty rate and the goods management policy. If the HS code is wrong, a business may apply the wrong rules of origin and be denied the tariff preference.
7. Not Checking the Rules of Each FTA
Every free trade agreement has its own rules on: eligibility for preferences, rules of origin, forms of origin certification and supporting documents. A business should not apply the rules of one FTA to another agreement.
8. Not Checking Consistency Across Documents
The information on the commercial invoice, packing list, bill of lading, customs declaration and C/O must be consistent in terms of product name, goods description, quantity, weight, delivery terms and the seller's and buyer's details. Differences between documents can lead customs to request an explanation or deny the preference.
9. Not Tracking Policy Changes
FTAs and origin rules can be updated over time. A business needs to regularly monitor:
- New regulations.
- Guidance from the competent authorities.
- Changes to document forms or the C/O issuance process.
10. Relying Entirely on a Service Provider
Many businesses hand the entire C/O application to a service provider without checking the information themselves. This can lead to errors if:
- The declared information is inaccurate.
- Documents are missing.
- New regulations are not kept up to date.
The business remains the party responsible for the accuracy of the file.
How to Apply for a C/O Correctly
- Determine the correct HS code.
- Check the rules of origin before signing the contract.
- Choose the correct C/O form.
- Reconcile all documents before submitting.
- Keep complete records that prove origin.
- Stay up to date with the new rules of each FTA.
- Work with your import-export team and an experienced consultant.
Common Mistakes Businesses Make
- Only thinking about the C/O when the goods are about to ship.
- Not checking the rules of origin.
- Wrong HS code.
- Not reconciling information across documents.
- Missing records that prove the origin of materials.
- Submitting the C/O late.
- Not keeping records after the C/O is issued.
These errors not only forfeit tariff preferences but can also damage a business's reputation in international transactions.
Conclusion
The C/O is the document that unlocks tariff preferences under free trade agreements. Yet a single small error in applying for or using it can leave a business without those preferences, raising import costs and hurting business performance.
To reduce the risk, a business must determine the correct HS code, clearly understand the rules of origin, choose the right C/O form and check the consistency of its documents. Proactively keeping up with new regulations and working with experienced consultants will help you make the most of the benefits FTAs offer.
If you are looking for a trusted, high-quality C/O application service, contact Embassy Freight now on our hotline: 0936 911 656 for prompt advice and a quotation!
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