Customs clearance does not permanently close a declaration. Vietnamese Customs may still compare the declaration with contracts, payments, accounting records, technical files, origin evidence, production norms and physical goods to assess whether the filing was accurate and compliant. If a company starts preparing only after receiving an audit decision, data held by customs, finance, warehouse, production and suppliers may no longer connect. This article explains the three statutory bases for a post-clearance audit, common operational risk signals, the records that may be requested and a controlled response process.

TGIMEX operational guidance · Updated 20 July 2026

QUICK FACTS

Basis 1

Indication of a violation

Information suggests possible non-compliance with customs law or other import/export management rules.

Basis 2

Risk-based selection

A company may be selected without a prior violation finding, based on analysis of the trader, goods, customs regime and compliance history.

Basis 3

Compliance assessment

An audit may form part of a compliance assessment plan; selection itself does not mean the company has violated the law.

Legal window

Five years from declaration registration

The statutory period runs from the customs declaration registration date, not the warehouse receipt date or internal accounting close.

Key point: a Green Channel result, completed delivery or full tax payment does not create immunity from post-clearance review. Post-clearance audit is a normal component of declaration-based and risk-based customs control.

Illustration for When Can a Business Be Selected for a Post-Clearance Audit in Vietnam? — Illustration of the logistics topic, document or operation discussed in the article.

SCOPE

This article applies to customs declarants and businesses engaged in import or export activities, including ordinary trading, export manufacturing, processing, export processing enterprises, duty-exempt projects and other customs regimes involving cleared declarations.

An audit may take place at a customs office or at the customs declarant’s premises.
The scope may cover one declaration, a group of products, one issue such as HS classification/value/origin, one customs regime or broader import-export activities for the period stated in the decision.
It is distinct from documentary or physical inspection during clearance, a specialised inspection, domestic tax audit, market surveillance or anti-smuggling investigation.

KEY TERMS

Term	Operational meaning	Role in the audit decision
Post-clearance audit	Review of customs, accounting and related data—and, where necessary and still possible, physical goods—after clearance.	Tests the accuracy and truthfulness of declarations and overall compliance.
Indication of violation	Information or inconsistencies supporting a suspicion of non-compliance; it is not yet a final finding.	One of the three statutory audit cases under Article 78 of the Customs Law.
Risk management	Data analysis used to select the subject, scope, issue and level of control.	Allows selection even where no specific violation indication has been established.
Compliance assessment	Assessment of the declarant’s control framework and legal compliance history.	May be plan-based and should not be treated as a presumption of wrongdoing.
Audit trail	Evidence linking source data, approvals, declarations, amendments, payment, accounting and inventory.	Explains why a declaration field was completed in a particular way at the filing date.

HOW THE MECHANISM WORKS

Clearance is one control milestone, not an absolute confirmation that every element of a declaration has been fully examined. Risk management allows Customs to conduct a deeper review after release, when additional information becomes available from later declarations, accounting and payment records, specialised authorities, counterparties, foreign sources or analysis by commodity and customs regime.

The three statutory cases under Article 78

Audit case	Trigger	Main purpose	What the business should understand
Indication of violation	Information suggests possible breach of customs law or other import/export management rules.	Verify the indication, quantify its impact and determine whether a violation occurred.	An indication justifies review; it is not a final adverse conclusion.
Risk-based audit	No specific violation indication, but the subject is selected through risk analysis.	Address higher-risk areas or matters not fully examined during clearance.	Compliant businesses may still be selected and should maintain audit-ready files.
Compliance audit	Selection to assess the declarant’s overall legal compliance.	Review both transactions and control systems covering classification, value, origin, tax and records.	The scope may be wider than one declaration and may be included in an annual audit plan.

Operational signals that may draw attention

The following are practical risk signals, not automatic statutory triggers guaranteeing an audit:

Unusual changes in product description, HS code, tariff rate, customs value, origin or quantity across similar shipments.
Declared value does not reconcile with the company’s own data, comparable transactions or payment records; assists, royalties, commissions, freight, insurance or indirect payments are unclear.
Certificate of origin, origin criterion, third-party invoicing or direct transport evidence cannot be connected to the actual goods.
Processing, export-manufacturing, EPE or duty-exempt project records show gaps between imports, norms, production, inventory, exports and scrap.
Repeated amendments, refunds, exemptions or non-collection claims; customs data does not reconcile with accounting, financial statements or bank evidence.
Goods fall within a risk list or complex specialised-management regime and were not fully checked during clearance.
Information from authorities, customs units, counterparties, foreign sources or inter-agency databases requires verification.

RISK AREAS AND EVIDENCE

Area	Records commonly cross-checked	Issues requiring explanation	Possible consequence if incorrect	Recommended internal control
HS classification and policy	Catalogues, composition, function, materials, classification decisions.	Generic descriptions; inconsistent codes; insufficient technical evidence for a lower-duty code.	Tax assessment, administrative handling and specialised-policy adjustment.	Classification file by SKU/model with technical approval and change history.
Customs value	Contract, invoice, PO, payments, ledgers, fees and Incoterms.	Off-invoice payments, royalties, unsupported discounts or unanalysed special relationship.	Value adjustment, tax arrears, late-payment interest and handling depending on conduct.	Value bridge from purchase price to declared value, reconciled to bank and accounting records.
Origin and C/O	C/O, invoice, transport records, BOM, production and material evidence.	Seller/exporter mismatch; transport route or origin criterion cannot be evidenced.	Denial of preference, recovery of tax difference and C/O-related handling.	FTA condition matrix and shipment-level origin evidence pack.
Processing, export manufacturing and EPE	Norms, BOM, inventory, production orders, finalisation reports and scrap records.	Negative stock, unusual consumption, duty-exempt goods used for another purpose or system-to-physical gaps.	Tax assessment for ineligible quantities, reporting corrections and possible penalties.	Declaration-to-material-to-finished-product reconciliation and controlled norm changes.
Licences and specialised controls	Licences, inspection registration, test reports, certificates, labels and model files.	Wrong model/shipment, invalid period or goods different from approved documentation.	Handling under customs and the relevant specialised law.	SKU-level obligation register with document version and effective-condition control.

RECORDS AND DATA TO PREPARE

Record group	Owner/source	What must reconcile	Control point
Shipment customs file	Customs/logistics team or customs broker	Declaration, invoice, packing list, transport, C/O, permits and amendments.	Retain the exact version filed and evidence available at the filing date.
Contract and payment file	Procurement, finance and accounting	Contract, PO, debit/credit notes, bank payment, payable and third-party charges.	Account for every payment connected with the imported goods.
Technical file	Technical, product, R&D and supplier teams	Model, material, function, composition, catalogue, images and production process.	Match the actual product description and classification at import.
Accounting, inventory and production	Accounting, warehouse and production	General ledger, costing, stock movements, BOM, norms, orders and scrap.	Map internal item codes to declarations and commercial documents.
Compliance file	Compliance/legal	Approval procedures, self-reviews, issue logs and remediation history.	Demonstrate prevention, detection and correction controls.

RESPONSE PROCESS AFTER RECEIVING AN AUDIT DECISION

Confirm and freeze the scope

Identify the issuing authority, venue, period, declarations, products, issues, deadlines and requested documents. Do not broaden or narrow the scope by assumption.

Appoint one response coordinator

Coordinate customs, accounting, tax, warehouse, production, technical, legal and the customs broker; maintain a request-owner-deadline-version log.

Build a declaration-level data map

Link HS, value, origin, quantity and use purpose to source documents, accounting and physical flows. Separate reconciled items, gaps and supporting explanations.

Review the legal position before explaining

Distinguish formal defects from substantive errors and assess amendment, tax and specialised obligations. Never alter original evidence or create backdated documents.

Submit evidence under document control

Use an index, numbering, source and internal sign-off. Answer within scope and record reservations in writing where the company has a different legal or factual position.

Control minutes, findings and remediation

Check figures, legal basis, scope and the company’s comments before signing. After the conclusion, manage payment, amendment, complaint or system remediation as applicable.

Statutory timing under the Customs Law: an audit at a customs office is limited to five working days; an audit at the declarant’s premises is limited to ten working days and may be extended once for no more than ten working days. The decision is sent within three working days after signing and at least five working days before the audit; the minimum advance-notice rule at the declarant’s premises does not apply to the indication-of-violation case.

COMMON RISKS AND ERRORS

Error	Cause	Impact	Control
Treating Green Channel as permanent acceptance	Confusing clearance risk selection with a final audit conclusion.	Records are not maintained and issues are detected too late.	Periodic self-review by classification, value, origin and customs regime.
Different departments hold different data versions	No common shipment/declaration key or central repository.	Invoice, payment, inventory and declaration do not reconcile.	Electronic file by declaration–invoice–SKU–contract.
Submitting documents without an explanatory logic	Responding by sending files rather than proving the transaction chain.	Large volume of records does not resolve the audit question.	Use an issue-source-figure-conclusion reconciliation matrix.
Editing or recreating original evidence	Attempting to make the file look consistent after a gap is discovered.	Loss of authenticity and increased legal exposure.	Preserve originals and explain differences through a valid audit trail.
Missing deadlines and reservations	No coordinator or work log.	Lost time for submission, explanation or legal remedies.	Maintain a legal calendar, internal minutes and delivery acknowledgements.

LEGAL BASIS AND OFFICIAL SOURCES

Instrument/source	Status and date	Role in this article
Consolidated Customs Law 54/VBHN-VPQH dated 23 March 2026	Office of the National Assembly; current consolidated text as of the update date.	Articles 77–80 cover purpose, the five-year period, three audit bases, locations and key procedural milestones.
Consolidated Document 46/VBHN-BTC dated 24 November 2025	Consolidates Decree 08/2015/ND-CP and amendments up to the consolidation date.	Detailed rules for audits at customs offices and declarants’ premises.
Decree 167/2025/ND-CP	Effective 15 August 2025.	An amendment to Decree 08/2015/ND-CP relevant when applying the current procedure.
Consolidated Document 16/VBHN-BTC dated 27 June 2024	Consolidated customs risk-management rules.	Supports risk-based selection by compliance level, trader profile, goods and customs regime.

Consolidated Customs Law source Consolidated Decree source Risk-management source

Updated against Consolidated Customs Law 54/VBHN-VPQH dated 23 March 2026 and relevant implementing instruments in force as of 20 July 2026. This English version is for operational reference only; the Vietnamese legal text prevails.

FAQ

1. Can a company be audited without an indication of violation?

Yes. Article 78 also permits risk-based selection and compliance assessment. Selection is not a finding of wrongdoing.

2. Can a Green Channel shipment be audited later?

Yes. Green Channel reflects the control decision at clearance based on information and risk at that time; it does not exclude a post-clearance audit within the statutory period.

3. How far back may Customs audit?

The post-clearance audit period is five years from the customs declaration registration date. This should not be confused with record-retention duties or other limitation periods.

4. How does an office audit differ from an on-site audit?

The venue, depth of data access and statutory working period differ. An on-site audit may examine accounting, financial statements, warehouse, production and available goods within the decision’s scope.

5. Must the business provide every document requested?

The business must comply with the decision and provide records related to the audit scope. Where a request is unclear, seek written clarification rather than refusing or disclosing large amounts of unrelated data.

6. What should the company do if it discovers an error before the audit starts?

Freeze the figures, determine the nature and discovery date of the error, assess amendment and tax obligations, and act under the current rules. Do not alter originals or file an amendment mechanically without confirming the correct procedure.

APPLICATION NOTE: The outcome depends on the audit decision, actual documents, customs regime, period, rules applicable when the transaction arose and the quality of evidence provided. This article is operational guidance and does not replace an authority’s conclusion or legal advice for a specific case.

TGIMEX IMPLEMENTATION SUPPORT

TGIMEX helps businesses turn the article into a shipment-ready checklist, covering input-data review, dossier preparation, milestone control, and coordination with the relevant parties.

Convert guidance into checks

Assign an owner and deadline to every operational control point.

Reconcile shipment data

Compare booking, transport, commercial, customs, and delivery evidence.

Manage operational risk

Record discrepancies, actions, and decision evidence to prevent recurrence.

Discuss your shipment dossier

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