Customs Compliance Scan: What It Covers and Why UK Importers Need One

Most UK importers have never had a full review of their historic customs declarations. Yet HMRC estimates that around 17% of UK declarations contain errors, and its latest compliance yield reached GBP 41.8 billion. A customs compliance scan is the fastest way to understand where you stand.

What Is a Customs Compliance Scan?

A customs compliance scan is a structured review of your entire import declaration history, using your Trade & Revenue (TRE) data to identify:

• Classification errors – incorrect commodity codes leading to overpaid or underpaid duty.
• Valuation mistakes – missing or misapplied additions/deductions (freight, insurance, assists, royalties, transfer pricing adjustments).
• Origin and preference issues – missed preferential duty rates or incorrectly claimed preferences.
• Procedure code problems – incorrect CPC/Additional Procedure Codes that affect duty, VAT, and special regimes.
• Documentation gaps – missing or inconsistent supporting evidence across declarations.

Instead of sampling a handful of entries, a scan looks line by line across every declaration in your TRE dataset.

What a Compliance Scan Checks in Detail

A robust compliance scan runs targeted checks across all key customs elements:

1. Classification Accuracy

• Confirms that commodity codes match the actual goods.
• Flags high‑risk headings where misclassification is common.
• Identifies opportunities to move from non-preferential to preferential or lower‑duty codes where justified.

2. Valuation Methodology

• Reviews which WTO valuation method is being used and whether it is applied consistently.
• Checks for missing freight, insurance, packing, assists, royalties, licence fees, and transfer pricing adjustments.
• Highlights patterns where customs value appears systematically understated or overstated.

3. Origin & Preference Utilisation

• Compares declared country of origin with available supplier and product data.
• Identifies where Free Trade Agreement (FTA) preferences could have been claimed but were not.
• Flags declarations where preference was claimed but supporting origin evidence may be weak or missing.

4. Procedure Code Correctness

• Reviews Customs Procedure Codes (CPCs) and additional procedure codes for suitability.
• Detects incorrect use of special procedures (e.g. IP, OP, warehousing, temporary admission).
• Highlights where a different procedure could have reduced duty or improved cash flow.

5. Documentation Completeness

• Checks for missing or inconsistent commercial invoices, packing lists, origin statements, licences, and authorisations.
• Flags declarations that may be difficult to defend in an HMRC audit.

How a Compliance Scan Differs from a Full Audit

A compliance scan is designed to be:

• Rapid – automated analysis of your TRE data, typically completed in under an hour once data is connected.
• High‑level but comprehensive – covers every declaration line to surface the biggest risks and recovery opportunities.
• Prioritised – ranks issues by financial impact and HMRC exposure.

A full customs audit, by contrast, is:

• Deeper and more manual – involves sampling, document review, and process walkthroughs.
• Focused on root causes – systems, controls, supplier terms, and internal responsibilities.
• Aimed at remediation – policy changes, training, and control design.

In practice, many importers use a scan as the first step: identify where the money and risk are, then decide where a full audit is justified.

Why UK Importers Need a Compliance Scan Now

Several trends make proactive scanning increasingly important for UK businesses:

• Error rates are high: Around 17% of UK customs declarations contain errors, often unnoticed for years.
• HMRC is more data‑driven: With a GBP 41.8 billion compliance yield, HMRC is using data analytics to target non‑compliance.
• Historic exposure builds up: Errors repeated over multiple years and thousands of lines can create material underpayments – or large reclaim opportunities.
• Directors are accountable: Boards are expected to demonstrate reasonable care over customs and indirect tax.

A compliance scan allows you to:

• Find and fix issues before HMRC does.
• Quantify potential duty/VAT reclaims from overpayments.
• Build an evidence‑based customs risk register.
• Demonstrate proactive governance to HMRC and internal stakeholders.

How BorderAudit Automates Compliance Scanning

BorderAudit is designed to make customs compliance scanning fast, repeatable, and low‑friction for UK importers.

1. Connect via Government Gateway

• Securely connect your Government Gateway account.
• Authorise access to your TRE data – no manual data extraction or spreadsheets.

2. Automated TRE Data Retrieval

• BorderAudit automatically retrieves your full declaration history from HMRC TRE.
• Every declaration line is brought into a structured analytics environment.

3. 100+ Automated Checks Across Every Line

• Over 100 targeted compliance and optimisation checks run across your data, including:
• Classification consistency and duty rate anomalies.
• Valuation completeness and unusual value/quantity ratios.
• Preference eligibility vs. actual claims.
• Procedure code suitability and special procedure usage.
• Patterns that indicate systemic control weaknesses.

4. Results in Under an Hour

• Once connected, most scans complete in under 60 minutes.
• You receive a clear summary of:
• Top risk areas by financial exposure.
• Potential reclaim value from overpaid duty/VAT.
• Priority actions to reduce HMRC risk.

5. High HMRC Acceptance on Reclaims

• Where overpayments are identified, BorderAudit supports structured reclaim submissions.
• Current users see around 91% HMRC acceptance on reclaim claims supported by BorderAudit analysis and documentation.

6. Commercial Model: Free Initial Scan

• Free initial compliance scan using your TRE data.
• Contingent pricing on recoveries – fees linked to successful duty/VAT reclaims, aligning incentives.

When to Schedule a Compliance Scan

You should consider a scan if:

• You have never reviewed your historic declarations in a structured way.
• Your business has grown, changed suppliers, or restructured supply chains post‑Brexit.
• You use multiple brokers or freight forwarders and lack central visibility.
• You are preparing for an HMRC visit, internal audit, or board review.

A customs compliance scan is a low‑effort, high‑impact step to understand your true customs position and unlock potential savings.

Next Steps

Connect your Government Gateway, run a free initial scan, and use the results to decide where deeper audit or remediation is needed. A data‑driven view of your customs history is now a practical necessity for UK importers operating at scale.