Customs legal

Human profile with a shield representing legal protection in customs matters

Every decision leaves a trace.

If you have received an inspection, an information request, a duty assessment or a penalty, we analyse facts and documents to build a solid legal response that keeps to the deadlines.

And if there is no dispute, we review your operations so that your documentation stands up to a customs check.

AnalysisStrategyJudgement
Gavel representing defence in customs matters
“Organise, understand and substantiate, to respond with technique and strategy.”

Control & Compliance

Prevention, control and response.

We do not only step in once a dispute arises. We review scenarios and organise evidence and, where appropriate, prepare the response: written submissions, appeals for reconsideration and economic-administrative claims against decisions of the Customs and Excise authorities.

01

Internal reviews

We analyse processes and evidence on classification, origin and value to spot weak points before they turn into an incident.

02

Internal reporting channel

We design the company’s internal reporting system in line with Act 2/2023 and, where appropriate, manage it as an external third party, with the safeguards the law requires: independence, confidentiality, data protection and secrecy of communications, acknowledgement of receipt and a response within the set deadlines.

03

Third parties and sanctions

We review relationships with third parties, sanctions and risk signals to strengthen control over the supply chain.

04

Evidence and defence

We organise documents and evidence to answer customs requests and sustain a coherent defence through submissions, appeals or claims.

Legal and technical response

Customs legal in customs disputes.

We support businesses facing an inspection, a penalty, a duty assessment, an information request or any other action that may affect their customs, transport or international trade operations.

So how do we defend this?

We organise the case in stages so that every decision has a clear basis: risk, evidence, strategy and follow-up.

01

Preventive analysis

We review the administrative action, the amounts, the deadlines and the critical points for the defence.

02

Documentation

We organise evidence, operations, contracts, customs declarations (SADs), correspondence and traceability.

03

Legal strategy

We define the response to duty assessments, penalties, information requests or appeals.

04

Support

We stand by the company through inspections, claims and proceedings.

Customs defence areas.

A dispute can affect the tariff classification, origin or declared customs value of goods. We review the approach applied, gather the supporting documentation and prepare the appropriate response for each proceeding.

  1. Tariff classification

    We analyse the nature, composition, function and use of the goods to defend the declared classification and respond to a reclassification or additional assessment.

  2. Origin and preferences

    We review production processes, supplier documentation, proofs of origin and preferential agreements to substantiate the declared origin and respond to verification procedures.

  3. Customs value

    We examine invoices, contracts, royalties, discounts, related-party relationships, transport and insurance to justify the elements included in the declared customs value.

  4. Appeals and claims

    We prepare submissions and appeals concerning assessments, penalties, information requests or amendments, as well as economic-administrative claims when the case requires it.

How we work

A clear defence is built in stages.

01

Preventive analysis

We review the administrative action, the operation concerned, the amounts, the deadlines and the critical points to pinpoint where the real risk lies.

02

Documentation

We organise contracts, invoices, customs declarations (SADs), certificates, correspondence and traceability to build a coherent defence that is easy to follow.

03

Legal strategy

We define the most appropriate response to duty assessments, penalties, information requests or appeals, combining technical judgement with a legal approach.

04

Support

We stand by the company through inspections, claims and proceedings to keep the response orderly from start to finish.

Typical areas

Inspections Penalties Duty assessments Appeals Transport Transport Arbitration Boards

Legal and technical response

Protection in customs disputes.

We support businesses facing an inspection, a penalty, a duty assessment, an information request or any other action that may affect their customs, transport or international trade operations.

The aim is to defend the company’s position with documentation, technical judgement and a clear strategy from the very first moment.

We have received a customs information request. What should we prepare?

Start with the complete notification, the date you received it and the documents for the case it concerns. Gather the customs declaration, invoices, transport documents and earlier correspondence that helps explain what the authorities are asking for. If a document is missing, identify it and who can provide it. This gives us a basis to assess the scope of the request, organise the questions that need answering and identify any further documentation required. Write to us stating the deadline given in the notification: it is the detail that most affects the response.

How do you approach a disagreement about classification, origin or value?

The first step is to identify the disputed information and the reason for the disagreement. Classification requires an understanding of the goods, origin may require evidence of manufacturing, and valuation calls for a review of the transaction and its financial documents. Simply repeating the declared information or the supplier’s position is not enough. We review the customs authority’s reasoning and the available evidence to distinguish established facts from unresolved points. To assess the case, send us the correspondence you received and the documents that supported the original declaration.

Can we seek advice after replying or receiving a duty assessment?

Yes. A previous reply does not prevent a review of the case, although the options depend on the decision received and the stage of the procedure. We need the full sequence of notifications, submissions, filing receipts and any assessment issued. This makes it possible to consider which issues remain open and what action fits the circumstances. Seeking advice does not necessarily mean appealing. Appealing a duty assessment does not in itself suspend its enforcement: suspension has to be requested and usually requires a guarantee. Appealing a tax penalty within the time limit does suspend its enforcement, without a guarantee, until the penalty becomes final at the administrative stage. The first step is to share the background and identify the dates affecting the response.

Can our operations continue while the case is being resolved?

That depends on which operations are affected and the specific measures adopted. The existence of a case does not, on its own, establish that all activity must stop or that every shipment can continue unchanged. We review the goods, declarations and decisions involved and their relationship to upcoming movements. This helps establish priorities and coordinate the response with the people handling customs clearance and logistics. Share the notification and tell us which planned shipments might be affected by the case or by the measures already taken.

Have a question?

Briefly describe your case and, if you have a deadline running, let us know.

When you press “Send enquiry”, your message will reach us at info@guiex.net and we will reply as soon as we can. If you prefer, write to us directly or call +34 93 488 50 34.

Controller: Agosto & Anguren IT, S.L. (GUIEX). Purpose: to reply to your enquiry. You can exercise your rights of access, rectification, erasure and others at info@guiex.net. More information in our privacy policy.