Customs Declaration Errors: 15 Common Mistakes and How to Avoid Them

Introduction

Although customs declarations may seem easy, any minor mistake in any of the fields can lead to greater issues. An incorrect classification of the goods under HS codes, incorrect customs value, lack of a document, problems with shipment information may lead to the customs declarations being rejected, delays in shipping, and extra costs to be incurred.

That is why accuracy is of utmost importance for importers/exporters/customs brokers/freight forwarders.

Customs declarations are documents that provide customs authorities with details on what goods are imported into or exported from the country. For example, in the European Union, customs declarations are official documents that put the goods under a specific customs procedure with data being provided through the EU Customs Data Model. So, which errors in customs declarations are the most common and how to avoid them?

This publication discloses examples of customs declaration errors and ways to avoid them.

Why Customs Declaration Errors Matter

Small Data Errors Can Create Major Delays

The customs system verifies the information provided in declarations. An error in one field can cause further mistakes, as various information fields are interconnected.

As HMRC observes, cross-field validation errors occur if one element of the data cannot be entered without the information of another element. For instance, failures in matching information of trading terms with valuation may lead to rejection of a customs declaration.

As a result, the following might happen:

• Delays during the customs procedures
• More communication with customs authorities
• Extra paperwork
• Cost of storage/handling
• Incorrect duties and taxes
• Disruptive effect on the movement of goods
• Potential compliance consequences

Accurate Declarations Support Customs Compliance

The quality of information presented by traders and their representatives greatly affects compliance with customs regulations. The EU Customs Data Model specifies data requirements for customs declarations and other customs procedures.

This means that companies require more than general knowledge of customs documentation requirements. They require processes to guarantee the accuracy, completeness, and integrity of information provided.

Common Customs Declaration Errors and How to Avoid Them

1. Using the Wrong HS Code

The Harmonized System (HS) code serves as a means of categorizing goods for customs purposes. If one uses an incorrect code, that mistake could result in a variety of issues related to duties to be paid, limitations, authorizations, reporting obligations, and other customs actions. This mistake is considered one of the most crucial mistakes in customs processes to avoid so that products are classified properly.

Some ways to avoid the wrong classification of goods include:

• Take a good look at the description of the products
• Finding out the applicable tariff
• Taking into account the material of the product, its function, composition, and purpose
• Storing your classification records of goods imported on a regular basis
• This means reviewing your classifications when products or regulations change
• Not using an HS code because it has been used for a similar product in a previous shipment

2. Providing an Incorrect Customs Value

The importance of customs value in customs declarations cannot be underestimated. Declaring the incorrect customs value will result in miscalculation of duties payable.

Some common issues are:

• Wrong invoice value is applied
• Relevant reductions or additions are omitted from the customs paperwork
• Confusing the product value with total shipment value
• Errors in choosing the appropriate valuation method

Businesses must establish a uniform approach to valuation and ensure that the declared customs value is validated with relevant commercial documents.

3. Entering the Wrong Country of Origin

The term country of origin is not always linked to the shipping country. Each of the origins has its own impact when it comes to duties, trade agreements, quota, custom requirements, and various restrictions.

How to avoid this mistake? Keep relevant information about the supplier and make sure you accurately check the origin this time before writing the declaration.

4. Missing or Incorrect EORI and Trader Information

All pieces of trader identification information must be correct. EORI for customs clearance is obligatory in the EU when the imports, exports and transit are concerned. Having the wrong or outdated identifier can lead to problems in the customs industry.

Before the submission make sure to check:

• Importer particulars
• Exporter particulars
• EORI information
• Representative details
• Any necessary registration information

5. Providing Incorrect Importer or Exporter Details

A declaration may be accurate regarding the information of the products but can still give rise to issues if the parties are wrongly named. Names, addresses, identification numbers, and representative information must be in line with relevant transport papers and customs documents.

This is key when dealing with multiple branches, subsidiaries, brokers, or business partners in case of establishing place and terms of transaction.

6. Submitting Incomplete Commercial Invoice Information

Commerce invoice is among the integral commercial documents used to support a declaration. Absence of clear information in the commercial invoice makes it impossible to figure out the type of the goods, their value, parties to the transaction, and the transaction terms.

Ensure that the invoice covers the following data:

• Seller's and buyer's names
• Product description
• Quantities
• Unit and total prices
• Currency
• Country of origin, if applicable
• HS code, if applicable
• Incoterms
• Shipping information

7. Using Incorrect Incoterms

Incoterms assist with outlining the obligations of participants in the transaction process with respect to transportation, costs included, and risk allocation. Using an incorrect Incoterm, however, may lead to discrepancies in the commercial transaction as well as the customs declaration.

Furthermore, these discrepancies may matter considerably in cases when any additional elements related to the commercial transaction need to be added to the customs valuation. Therefore, prior to making the customs declaration, one should double-check if the customs terms accurately reflect the essence of the commercial transaction.

8. Miscalculating Duties, Taxes, or Other Charges

The miscalculation may arise due to errors involving:

• Customs Value
• HS Classification
• Duty Rate
• Amount
• Currency Conversion
• Extra Fees
• Preferential Treatment

Therefore, instead of viewing the duties and taxes calculation as a final administrative procedure, companies need to first make sure the information provided in the declaration is correct.

9. Entering Incorrect Quantity, Weight, or Unit Information

Quantities and weights may seem to be straightforward, but they can often be the root cause of data entry faults. For instance, a delivery may consist of 500 pieces and the paperwork may show the number as 5,000. Likewise, kilograms may be mistakenly entered in place of another measurement unit.

Such mistakes can cause discrepancies in the declaration, invoice, packing slip, and transport documents.

10. Missing Required Supporting Documents

Certain types of cargo need extra paperwork depending on their classification, origin, destination, and legal regulations. If any permit, certificate, authorisation or supporting document is missing, it may lead to the rejection of the declaration or its delay.

Guidance by HMRC refers to the insufficient paperwork as one of declaration errors and recommends all declarers to check tariff conditions and filling in instructions. An effective tip is to develop the list of documentation needed according to the type of goods and customs procedures rather than relying on memory during customs clearance of every shipment.

11. Providing Inconsistent Information Across Trade Documents

Consider the case where the commercial invoice lists 1,000 units, whereas packing list states 100 units. The information given in declaration differs and in transport documents, there are additional details mentioned. Even if each document seems to be appropriate, the inconsistencies can call for an explanation.

This is why customs papers should be analyzed in an integrated manner as opposed to files separately. Be on the lookout for consistency in:

• Product description
• Quantity
• Weight
• Cost value
• Place of origin
• Code
• Name of importers and exporters
• Shipping mention

12. Using Outdated Customs Requirements

Customs requirements and details regarding customs can change. Therefore, relying on previous procedures and format of declaration could lead to erronous situations.

The EU customs data model has been changing in parallel with the alterations of customs data requirements. In August 2016 the reports of the European Commission indicate the ith edition of version 7.0.11 with the amendments introduced into the requirements and codes for low-value consignments. Companies should regularly consult the legislation of countries they work with.

13. Entering Incorrect Transport and Shipment Details

The information concerning transport is vital for somebody from customs to realize what transport is used and how the cargoes are delivered from one place to another. Errors may consist of:

• Mistaken means of transport selected
• Wrong flight, vessel, or transport reference code used
• Wrong package data indicated
• Wrong port or location indicated
• Wrong shipment dates mentioned
• Transport references that do not match

These details must be cross-checked with carrier and logistics documents before submitting the report.

14. Missing Special Customs Procedures, Licences, or Restrictions

Some goods have additional restrictions due to their features, purpose, place of manufacturing, or destination Port. Depending on the delivery, the company may need to consider licences, quotas, prohibitions, restrictions, and any special procedures or other regulations which have to be followed.

That is why the declaration must not be made based only on the invoice. The goods and the type of transaction should be analyzed with regards to the customs laws applicable.

15. Failing to Review the Declaration Before Submission

Submitting a declaration without going through some last-minute check is the easiest but also the most preventable error. A simple verification can detect any evident mistakes before they reach customs. Before submitting, you should ask yourself:

• Are all required fields filled out?
• Is the HS code correct?
• Does the customs value correspond to the supporting documents?
• Is the name of both the importer and the exporter correct?
• Are the figures for quantity and weight accurate?
• What are the necessary supporting documents?
• Do the invoice, packing list, and declaration conform to each other?
• Are customs regulations known and are they applied accurately?

How to Prevent Customs Declaration Errors

Build a Consistent Pre-Submission Checklist

A standardized checklist assists your team in establishing a repeatable procedure for every shipment. Your checklist may include:

• Trader information
• Product categorization
• Place of origin
• The value for Customs
• Amount and weight
• Duties and taxes
• Supporting documents
• Shipping details
• Customs procedure
• Final consistency of documents

The checklist needs to be customized according to your trade patterns and shipment types.

Validate Shipment and Document Data Before Filing

Instead of verifying the declaration after customs’ rejection, check for correctness first. Crosscheck data against commercial invoices, packing lists, transport documents, and declaration.

This method minimizes errors in customs clearance.

Keep Customs Information Updated

It’s better not to rely on the declaration you prepared 6 months ago automatically being correct now. Check for any changes in:

• Customs regulations
• Tariff codes
• Duties
• Documentation requirements
• Trader information
• Customs procedures
• Electronic declaration systems

In terms of European operations, you can refer to the European Commission's customs data regulations and EU Customs Data Model if you want to gain a better understanding of the necessary data in the declaration.

Standardize Communication Between Teams

Customs information often comes from multiple people: sales teams, suppliers, logistics teams, customs brokers, finance departments, and compliance specialists. If each team maintains different information, errors become more likely.

A centralized process can help ensure everyone works from the same shipment data.

What to Do When a Customs Declaration Contains an Error

Identify the Error Before Taking Action

Mistakes do not necessarily follow a single protocol. To identify how to handle the problem, one needs to determine:

• What is the nature of the mistake?
• Is the declaration accepted already?
• Was the shipment allowed to cross the border?
• Will the mistake affect taxes or duties?
• Are there any documents missing?
• Does the mistake impact customs procedures?

For UK import declarations according to CDS, for instance, HMRC has indicated that declarations can be amended prior to clearance and prior to the final tax calculation message.

Correct the Declaration Through the Appropriate Process

It is important to note that the procedure for correcting mistakes depends on the customs authority, the type of declaration, its timing, and the nature of the error. In the case of CDS declarations in the UK, HMRC provides clear instructions on how to identify and fix mistakes in declarations.

How AI and Automation Can Reduce Customs Errors

Extracting Data from Trade Documents

Manual data entry is a significant option for minimizing repetitive jobs in customs. AI systems can aid in the retrieval of data from documents like shipping invoices, thereby eliminating the requirement of transferring data from one platform to another.

This is particularly helpful in cases where huge volumes of shipments must be processed by the team.

Validating Information Before Submission

Automated solutions can also scan multiple documents and identify inconsistencies in data entered.

For example, the system can identify cases where:

• Product info is inconsistent or does not match;
• Some crucial information is missing;
• Data has not been consistent;
• Amount of item differs in various documents;
• Important customs information has not been provided by the person.

Automating Repetitive Declaration Preparation

Repetitive data preparation can take up quite a bit of time in the lives of customs brokers and logistics groups. Solutions like Droblet are made for streamlining AI-driven trade and customs procedures.

Also, figuring out how Droblet's ENS solution can add efficiency to customs declaration workflow can be helpful. The goal here is to not eliminate human involvement but to ease the burden on human agents so that they can concentrate on validating the shipment or making compliance-related decisions.

Customs Declaration Error Prevention Checklist

Use this checklist prior to making the declaration:

• Check that the name of the importer and exporter is correct
• Confirm the EORI code or other trader code is correct
• Validate the HS classification
• Confirm the country of origin of the goods
• Confirm the customs value and currency of the transaction
• Confirm the units of quantity, weight, etc.
• Validate the Incoterms and corresponding information to the transaction
• Confirm that the relevant duties, taxes, licenses, etc. are included in the declaration
• Ensure that the necessary supporting documents are ready
• Compare the declaration with the commercial invoice
• Compare the declaration with the packing list
• Check transportation information
• Check the customs procedure that applies
• Check the latest customs regulations

Conclusion

Errors in customs declarations are mainly caused by minor mistakes: incorrect HS codes, values, missing documents, outdated information, or inconsistencies in trade documents. Nevertheless, you will be glad to know that several of these typical errors can be avoided.

A blend of standardized procedures, precise customs paperwork, periodic compliance checkup, and pre-submission verification may help companies minimize any delays and extra expenses. In case you are dealing with high volume of shipments, automation can help you more by allowing your team to gather, compare, check, and manage the customs information before submission.

At the end, the objective is easy: submit the right information from the first try. When your customs data is accurate, complete, and coherent, your company is more likely to have a stable base for faster clearance, compliance, and reliable international trading operations.

Frequently Asked Questions

1. What are the most common customs declaration errors?

Common errors include incorrect HS codes, wrong customs values, missing documents, incorrect country of origin, and inconsistent shipment information.

2. How can I avoid customs declaration errors?

Use a pre-submission checklist, verify shipment data, keep customs documentation updated, and cross-check information across all trade documents.

3. What happens if a customs declaration is incorrect?

An incorrect declaration can result in customs clearance delays, additional costs, requests for clarification, duty or tax adjustments, and potential compliance issues.

4. Why is accurate customs documentation important?

Accurate customs documentation helps authorities verify the shipment and supports faster clearance while reducing the risk of errors and delays.

5. Can AI help reduce customs declaration errors?

Yes. AI and automation can extract information from trade documents, identify missing or inconsistent data, and help teams prepare more accurate customs declarations.