A customs declaration is the formal notification of goods for a chosen procedure — release for free circulation, export or transit — containing data on the value, HS code and origin of the goods. In the United Kingdom it is filed in the CDS system, and in Poland through the PUESC portal.
Contents
In brief — what you'll learn
- ✓ How to prepare the process and documents
- ✓ How the declaration and control work
- ✓ How to maintain compliance and settlements
How to prepare the process and documents
Division of responsibility between the parties
The minimum data set for the declaration
It is essential to distinguish responsibility between the importer, the exporter and the customs representative, because this determines the scope of the data passed to the filing system. The minimum set includes: the goods' CN/HS code, the customs value, the country of origin, the gross and net weight, the transaction parties' details, and the transport document number.
You will find a contact form and pricing on the website of Easy Clearance customs agency.
How the declaration and control work
The customs declaration procedure involves successive stages of data verification by the customs authority's electronic system, and how it runs depends on the type of customs procedure, the value of the goods and the risk profile assigned to that particular declaration.
Operational stages from advance notice to release
The most common risk points and how to limit them
How to maintain compliance and settlements
Maintaining customs compliance requires systematically linking documentation requirements to the responsibilities of the logistics team, accounting and the person responsible for compliance, so that no obligation is overlooked in day-to-day operations.
Record-keeping, corrections and evidence of due diligence
Customs documents should be kept for a minimum of 4 years (UK) or 5 years (EU), retaining both the electronic copy of the declaration and the accompanying commercial documents. If an error is found after the goods have been released, a correction to the declaration must be filed — the earlier this is done, the lower the risk of interest being charged or the customs office opening proceedings.
Working with a customs agency and internal audit
A customs agency acting as an indirect representative is jointly and severally liable for the accuracy of the declaration, so choosing a partner should be based on their experience and documented internal control procedures. A regular audit — at least once a quarter — makes it possible to catch recurring classification errors or documentation gaps before the customs authority does.
Summary
In summary: on the topic of 'What is a customs declaration?' the most important thing is to run the process according to current official guidance, with a clear division of responsibility and documentation of every decision. This approach reduces delays, cuts the number of corrections and makes it easier to defend the settlements during an audit. If any requirement raises doubts, check the current GOV.UK, EC TAXUD or KAS guidance before the final submission.
Legal basis and sources
- GOV.UK: Goods Vehicle Movement Service guidance
- EC TAXUD: EU Customs Tariff TARIC
- KAS: Krajowa Administracja Skarbowa (Polish National Revenue Administration)
If the regulations or system notices are updated, check the current GOV.UK or KAS guidance before submitting a declaration.
Frequently asked questions
What is a customs declaration, and who is required to file it?
A customs declaration is a formal submission of goods to the customs authority, containing information about their type, value, origin and customs treatment. The obligation to file it rests with the importer or exporter, although in practice this is usually outsourced to a customs agency acting as a direct or indirect representative.
What documents are needed to correctly prepare a customs declaration?
The minimum set includes: a commercial invoice, transport documents (CMR, AWB or B/L), a packing list, a certificate of origin (if required), and any necessary permits or licences. For trade between the United Kingdom and the European Union, an EORI number is required on both sides of the border.
What are the consequences of an incorrectly completed customs declaration?
Errors can result in the cargo being held, interest being charged on unpaid customs duties, administrative proceedings being opened, and — for serious breaches — a financial penalty or the withdrawal of Authorised Economic Operator (AEO) status. Verifying the data before filing the declaration is essential.
How long should customs documents be kept after clearance is complete?
In the United Kingdom, the minimum retention period is 4 years from the date the customs declaration was accepted. In the European Union, documents must be kept for at least 5 years. This applies both to electronic copies of the declarations and to the accompanying commercial and transport documents.
What is the difference between a direct and an indirect representative in customs clearance?
A direct representative acts in the name of and on behalf of the client — full responsibility for the declaration remains with the importer or exporter. An indirect representative (a typical customs agency) acts in its own name and is jointly and severally liable for any errors, which means a higher level of involvement and control on the agency's part.
Related guides
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