Reviewed 9 November 2026. General information for UK businesses, not a binding customs classification, repayment decision or tax advice.
What a review should establish first
An import duty repayment is a request to correct a customs debt that exceeded the legal amount due. Potential causes can include an incorrect commodity classification, a valuation mistake or an eligible trade preference that was not correctly applied, provided the legal and evidential conditions are met.
To begin, a business should separate actual customs duty paid from import VAT, freight costs and courier fees. Only records showing duty and the basis on which it was calculated can support a meaningful financial assessment.
- Confirm the importer of record and the relevant EORI.
- Identify the declaration route and entries in question.
- Locate commercial invoices and specifications for the actual goods.
The time limit is material
HMRC's published guidance generally gives a three-year period for claims involving overpaid import duty. Rejected imports and withdrawn declarations have different time limits, and exceptions can apply. The precise import date and legal grounds therefore matter.
The deadline is a reason to investigate promptly, not a reason to guarantee eligibility. A material adjustment may also require the review of historical underpayments and other compliance risks.
- Build a calendar of entry dates and amounts of duty paid.
- Check which statutory process applies to each declaration.
- Do not assume claims can be made beyond the correct limitation period.
Import VAT is a separate question
For a VAT-registered UK business, HMRC generally directs a correction of overpaid import VAT through its VAT return, rather than a customs-duty repayment application. This can be important when someone presents a combined import tax figure as a potential refund.
Businesses should ask any adviser to distinguish customs duty, VAT and other charges clearly in both the engagement and the claimed monetary benefit.
- Identify how import VAT was accounted for and whether postponed VAT accounting applies.
- Separate VAT-return corrections from customs duty reclaims.
- Do not charge a success fee on amounts that are not part of the agreed service.
A defensible repayment submission
HMRC may require declaration references, the payment record, evidence explaining why a lower amount was due and a suitable calculation. The right procedure depends on whether the entry was made through CDS, CHIEF or another applicable route.
A qualified specialist should review both the original treatment and the proposed alternative before any authority or submission. The client remains responsible for understanding what is filed in its name.
- Prepare an evidence schedule for each line or group of entries.
- Check whether a former agent is already engaged on the same issue.
- Confirm the commercial terms and decision process before progressing.
Reference sources
HMRC guidance can change. A licensed or suitably qualified adviser must check the applicable rules for any specific customs entry.
Do you have declaration-level records and material duty spend?
Identify what you paid, what appears inconsistent and which source evidence is available. A valid refund can only be assessed from the facts.
View the importer review criteria →