A duty recovery claim is only as strong as the evidence behind it. HMRC does not take your word for it. They need documented, structured proof that the goods qualify for relief and that the claim is accurate. This guide covers what HMRC expects for both RGR and Drawback claims, and how to build a defensible evidence pack for every case.
What HMRC expects for RGR claims
For Returned Goods Relief, HMRC needs to see a clear, provable story: the goods were exported from the UK, they were returned in the same state, and the correct relief was claimed at re-import. The evidence pack must cover:
The export MRN is the anchor of every RGR claim. It proves the goods left the UK and provides the reference HMRC uses to verify the original declaration. Without it, the claim cannot proceed.
Commercial invoices, packing lists, and transport documents (airway bills, bills of lading) that support the declared value, description, and quantity of the goods. These must be consistent across the export and re-import.
For RGR claims, HMRC needs to see that the goods returned in the same condition as when they were exported. This is typically demonstrated through intake photography, condition grading, and scan event records at the point of return.
The CDS declaration for the re-import, showing the correct RGR Customs Procedure Code (CPC) was applied and the appropriate relief was claimed. This is where the filing itself becomes part of the evidence.
Records showing the journey of the goods from export to return. Tracking numbers, carrier manifests, and warehouse intake logs that demonstrate the goods were not diverted, altered, or substituted.
For a full overview of RGR eligibility and the returns lane, see Returned Goods Relief explained.
What HMRC expects for Drawback claims
Drawback evidence follows a different path, proving that duty was paid on import and that the goods were subsequently re-exported. The key documents include:
- Original import entry showing duty paid (MRN, HS code, duty amount)
- Export declaration for the re-exported goods (export MRN)
- Exit confirmation proving the goods left the UK
- Commercial invoices linking the import to the export
- Transport documentation for the re-export shipment
- For overpayment claims: corrected classification, valuation, or origin evidence
For a deep dive into all three recovery routes (RGR, Drawback, and overpayments), see Customs Duty Drawback: Recovering Duty on Re-Exports.
Common evidence mistakes
Most claims fail not because the goods are ineligible, but because the evidence is incomplete, inconsistent, or poorly organised. The most common mistakes:
A single photo is not enough. HMRC expects multi-angle evidence that clearly shows the item, its condition, and any identifying marks. Blurry or poorly lit photos undermine the claim.
The most common failure. If you cannot link the return to the original export MRN, the claim fails. This is why MRN matching is the critical first step in any evidence pack.
When the returns platform says one thing, the warehouse system says another, and the customs declaration says something else, HMRC sees a claim that cannot be trusted.
Evidence that exists but cannot be retrieved is as bad as evidence that does not exist. HMRC can review claims for years after filing. If you cannot produce the evidence on request, the claim is at risk.
Submitting claims with known data gaps or unresolved exceptions creates audit risk. Every claim should pass a quality check before filing.
The MRN linkage problem is the most common failure. Read more about how to solve it in MRN Matching: Why It Matters.
Best practices for audit-ready evidence
- Standardise intake evidence capture with a defined checklist for every return
- Automate MRN matching to reduce manual errors and speed up the process
- Use structured exception queues to handle unresolvable cases transparently
- Retain all evidence for at least 7 years in line with HMRC requirements
- Run regular quality audits on evidence packs before filing
- Build immutable audit logs so every action is timestamped and traceable
How Meridian builds evidence packs
The Meridian Compliance Hub automates evidence pack assembly. For every case, the platform collects export references, commercial documents, and intake evidence into a structured, checklist-driven pack. Every action is logged in an immutable audit trail. Evidence is retained for the full HMRC review period. And exceptions are flagged and resolved before filing, so rejections are rare and disputes are quick to resolve.
The result: HMRC sees a clear, transparent claim backed by complete, organised evidence. Approvals are faster. Rejections are fewer. And your operation is defensible at every stage.
Want to see how we build evidence packs?
Talk to a specialist and we will show you the compliance workflow from intake to filing.

