Criminal Defense

Customs Act Violation Lawyer

Customs Act Violation Lawyer | What to know before your customs case moves forward

Summary

Customs Act violation cases in Korea are unusual because two tracks run in parallel: a criminal investigation (led by the Korea Customs Service acting as a special judicial police agency, and then the prosecution) and an administrative track (additional duties, penalty surcharges, and in serious cases suspension of import/export business). The same set of facts — an undervalued invoice, a misdeclared HS code, a false country-of-origin marking — can be read very differently by an investigator building a smuggling case and by a customs officer calculating back duties. Whether an act is treated as simple negligence, an administrative infraction, or intentional evasion under the Customs Act (관세법) often decides whether the outcome is a fine, a settlement offer (통고처분), or an indictment.

Criminal · Administrative Governing law: Customs Act (관세법) Import/Export Investigation Defense

Customs Act Violation | How a Customs Act case can branch after the same investigation

Once Korea Customs Service opens a case, the outcome generally lands in one of these tracks depending on the amount involved, intent, and prior history. Understanding which track you are in changes what kind of defense actually helps.

Notice of Disposition

Minor or first-time cases where intent is unclear or the amount is small

Who decides	Korea Customs Service (통고처분)
Outcome	Payment in lieu of prosecution
Criminal record	None if accepted and paid
Typical amount	Lower-value, non-repeat cases

A 통고처분 (notice of disposition) under the Customs Act lets Customs resolve certain violations without referring the case to prosecutors, similar in function to a traffic fine (관세법 제311조).

Criminal Referral

Cases involving suspected intent, large sums, or organized smuggling

Who decides	Prosecutors, then courts
Outcome	Fine, suspended sentence, or imprisonment
Criminal record	Yes if convicted
Typical amount	Higher-value or repeat conduct

Smuggling and import/export declaration fraud can carry imprisonment or fines calculated against the value of the goods (관세법 제269조, 제270조).

Additional Duty Assessment

Purely administrative correction where no criminal intent is found

Who decides	Customs office (post-clearance audit)
Outcome	Back duties plus additional duty
Criminal record	None
Typical amount	Based on underpaid duty amount

When a declaration understates dutiable value or misclassifies goods without intent to evade, Customs can simply reassess and add an additional duty (관세법 제42조).

Business Suspension / License Action

Repeat or serious violations by licensed customs brokers or bonded warehouse operators

Who decides	Korea Customs Service
Outcome	Suspension or revocation of registration
Criminal record	Separate from criminal proceedings
Typical amount	Applies to license holders, not one-off importers

Customs brokers, bonded warehouse operators, and AEO-certified companies face separate registration sanctions on top of any criminal or duty consequences.

Customs Act Violation | Where the line between an administrative error and a crime is actually drawn

Investigators and defense counsel both focus on the same question: was this negligence, or was there intent to evade duty or law? The answer usually comes from documentary evidence rather than a single admission.

Intent is inferred from the paper trail

Because direct evidence of intent is rare, Customs and prosecutors typically build their case from invoices, contracts, emails, and bank transfer records that show a discrepancy between what was declared and what actually happened. A gap between the invoice price and the price actually paid, or between the declared HS code and the product's actual function, is treated as circumstantial evidence of intent under the smuggling and declaration-fraud provisions (관세법 제269조, 제270조).

Repeated conduct changes the calculus

A single misdeclaration is more likely to be treated as correctable error. A pattern across multiple shipments, or use of a shell trading company to split invoices, tends to move a case from the administrative track toward criminal referral, because it undercuts the argument that any one instance was a mistake.

Cooperation with a post-clearance audit matters early

Korea Customs Service routinely conducts post-clearance audits of import records. How a company or importer responds at that stage — providing documentation promptly versus appearing to obstruct or delay — can influence whether the matter is resolved by additional duty assessment or escalated for investigation.

Customs Act Violation | The kinds of conduct that most often trigger a Customs Act case

Most Customs Act matters we see fall into a handful of recurring patterns. Each raises a different mix of criminal and administrative risk.

Undervaluation and dual invoicing

Declaring a lower transaction price than what was actually paid — often through a separate 'true' invoice sent outside the declared documents — is treated as a classic case of duty evasion through false declaration (관세법 제270조). The dutiable value dispute itself can also be contested administratively even where no criminal intent is found (관세법 제30조 on customs valuation).

HS code misclassification

Some misclassification is genuinely a gray area, since tariff classification of complex or composite goods is technical and reasonable importers can disagree. Whether a misclassification was a defensible interpretation or a deliberate attempt to obtain a lower tariff rate is often the central factual dispute.

Prohibited or restricted items and smuggling

Bringing in items without required import permits, or concealing goods to avoid declaration entirely, falls under the smuggling provisions and generally carries the most serious exposure, including imprisonment (관세법 제269조). Cases involving items subject to separate licensing (certain foods, drugs, electronics, cultural property) can also trigger charges under other statutes in addition to the Customs Act.

False country-of-origin marking

Mislabeling origin to obtain preferential tariff treatment under a free trade agreement, or to make goods appear domestically made, is separately regulated and can result in both a Customs Act violation and a Foreign Trade Act (대외무역법) issue running in parallel.

Customs Act Violation | How a Customs Act case typically moves forward

Initial contact — audit notice or investigation summons
Cases begin either with a post-clearance audit request for documents or a formal summons from Korea Customs Service's investigation division. Early legal review of what is actually being asked helps avoid statements that later look like admissions of intent.

Document review and fact-gathering
Counsel reviews the import/export declarations, contracts, invoices, and internal communications alongside the client to identify where the discrepancy actually lies and whether it supports an administrative or criminal characterization.

Response to Customs or prosecutors
Depending on the stage, this may mean a written opinion to Customs before a criminal referral decision, or a defense submission once the case has moved to the prosecution's office.

Disposition — notice of disposition, additional duty, or indictment
The case resolves through a 통고처분 payment, an administrative duty assessment, a non-indictment decision, or an indictment leading to trial, depending on how intent and amount were ultimately assessed.

Trial or appeal of the duty assessment
If indicted, the case proceeds through criminal trial like any other criminal matter. If only an administrative additional duty was assessed and the importer disputes it, a separate administrative appeal or lawsuit can be pursued (관세법 제119조 등의 이의신청·심사청구 절차).

Customs Act Violation | How fees are generally calculated in Customs Act matters

Retainer fee
Typically set based on the stage of the case (audit response vs. investigation vs. trial), the complexity of the transactions involved, and whether the matter involves a single declaration or a pattern across many shipments.

Success fee
Where applicable, this is agreed separately depending on the outcome sought — for example, avoiding indictment, securing a non-prosecution disposition, or reducing an administrative duty assessment. Amounts are never guaranteed in advance.

Administrative appeal fee
If the case involves a separate administrative appeal against an additional duty assessment, this is usually billed apart from any criminal defense work, since it is a distinct procedure.

Expenses
Costs such as customs data requests, expert opinions on tariff classification or valuation, and translation of trade documents are billed separately as incurred.

※ Costs vary depending on case complexity and specific circumstances; exact fees will be provided during consultation. No specific outcome is guaranteed.

Customs Act Violation | Self-Check Before You Respond to Customs

1️⃣ If you received a post-clearance audit notice

Does the notice specify which declarations or shipments are being reviewed?
Do you have the original contracts and payment records for those transactions?
Is there any gap between the declared price and what was actually transferred?
Have you responded to any prior audit or inquiry about the same goods?

2️⃣ If you were summoned by Korea Customs Service investigators

Does the summons state whether you are being treated as a suspect or a witness?
Have you reviewed all documents you might be asked about before attending?
Do you understand which specific provision of the Customs Act is being investigated?
Have you discussed with counsel whether to attend with a written statement instead?

3️⃣ If you are a customs broker or bonded warehouse operator

Could this violation also trigger a registration suspension separate from any criminal case?
Have you notified your business insurance or professional liability coverage if applicable?
Are your internal compliance records for this transaction complete and dated?

4️⃣ If you disagree with an additional duty assessment

Do you understand the filing deadline for an administrative appeal against the assessment?
Do you have documentation supporting your original declared value or classification?
Have you separated the administrative dispute from any parallel criminal exposure in your response strategy?

Frequently Asked Questions

Q. I received an audit notice from Korea Customs Service. Does that mean I'm being criminally investigated?

A. Not necessarily. A post-clearance audit is primarily an administrative review of whether duties were correctly paid (관세법 제110조 관련 사후관리 절차). It can lead to a criminal referral if the audit uncovers apparent intent to evade duty, but many audits end with only a duty correction.

Q. What is a 통고처분 and should I just pay it?

A. A 통고처분 (notice of disposition) is Customs's offer to resolve certain violations by payment instead of criminal referral (관세법 제311조). Whether accepting it is advisable depends on whether you agree with the underlying facts, since payment functions as an acknowledgment of the violation and may affect future cases.

Q. Can a simple HS code mistake really lead to criminal charges?

A. A genuine classification error made in good faith is generally treated as an administrative matter resolved through additional duty. Criminal exposure under the declaration-fraud provisions arises when there is evidence the misclassification was intended to obtain a lower tariff or evade a restriction (관세법 제270조).

Q. What is the difference between smuggling and duty evasion under the Customs Act?

A. Smuggling generally refers to bringing goods across the border without any declaration at all, or concealing them from inspection, and carries the heaviest penalties including imprisonment (관세법 제269조). Duty evasion typically involves a declaration that was filed but contains false information about value, quantity, or classification (관세법 제270조).

Q. How long can Customs go back to reassess my past import declarations?

A. There is a statutory period for reassessment and collection of customs duties, after which Customs generally cannot pursue additional duty for that shipment (관세법 제21조 관세부과의 제척기간). The specific period depends on whether fraud or intentional evasion is found, since that extends the period compared to ordinary errors.

Q. If my company is investigated, can I be personally charged as an individual employee?

A. Yes. Under the Customs Act's joint penalty provisions, both the company and the individual who actually handled the declaration or transaction can face liability depending on their role and decision-making authority (관세법 제279조 양벌규정).

Q. Will a Customs Act conviction affect my business license or ability to import in the future?

A. It can. Beyond the criminal penalty itself, a conviction or repeated violations can lead to restrictions on customs broker registration, bonded warehouse licenses, or AEO certification status, which are governed separately from the criminal case.

Q. I disagree with the additional duty amount Customs assessed. What can I do?

A. You can generally file an administrative objection or appeal against the assessment within the statutory period, and if unsuccessful, pursue further administrative litigation (관세법 제119조 이의신청 및 심사청구 절차). This process is separate from any criminal proceeding arising from the same facts.

Q. Should I hire a customs act violation lawyer before or after I'm summoned?

A. Reviewing documents and the factual background with counsel before attending any interview, if possible, generally allows for a more considered response than reacting after a summons has already been issued. Many importers first speak with a lawyer once they receive an audit notice, which is often the earliest practical point of contact.

Q. Does paying back duties voluntarily help if I'm later investigated?

A. Voluntary correction and payment before an investigation begins can be a relevant factor in how the case is ultimately treated, though it does not automatically prevent a criminal referral if evidence of intent already exists. Whether and how to disclose voluntarily is worth discussing with counsel given the specific facts.

Official References

개인정보처리방침

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