Outward Processing Relief (OPR) is a customs procedure that allows UK businesses to temporarily export goods for processing, repair, or modification abroad, and then re-import the finished products with reduced or zero customs duty. Rather than paying full duty on the total value of the returned goods, duty is calculated only on the value added during processing overseas. This can result in significant cost savings for businesses that outsource certain manufacturing or repair operations.
How Outward Processing Relief Works
Under OPR, goods are exported from the UK to a third country for a specific processing operation — such as repair, alteration, assembly, or further manufacturing. When the processed goods are re-imported into the UK, the customs duty is calculated only on the cost of the processing performed abroad (including materials added abroad), rather than on the full value of the re-imported goods.
According to GOV.UK guidance, OPR authorisation must be obtained from HMRC before the goods are exported. The authorisation specifies the goods to be exported, the processing to be carried out, and the period within which the processed goods must be re-imported.
Common Uses of Outward Processing
Repair and warranty work: One of the most frequent uses of OPR is sending goods abroad for repair under warranty or service agreements. A UK company might export machinery to a specialist repair facility in Germany, have it repaired, and re-import it paying duty only on the repair costs.
Specialised processing: When a particular manufacturing step requires equipment or expertise not available in the UK, OPR allows businesses to outsource that step without incurring full duty on re-import.
Textile and garment finishing: The textile industry frequently uses OPR for operations such as dyeing, printing, or finishing fabrics that are then re-imported for sale.
Applying for OPR Authorisation
Businesses must apply for OPR authorisation from HMRC before exporting goods for processing. The application requires details of the goods to be exported, the nature of processing, the third country where processing will take place, and the expected timeframe. An experienced customs broker can prepare and submit the application, ensuring all requirements are met.
Calculating Duty Relief
The duty saving under OPR can be calculated in two ways. The added value method calculates duty on the processing costs, transport, and insurance related to the overseas processing. The differential duty method calculates the difference between duty on the re-imported products and what would have been payable on the temporarily exported goods if they had been imported in their original state.
For goods returned after free-of-charge repair (e.g., under warranty), the relief can result in zero duty — making OPR particularly attractive for after-sales service operations.
Requirements and Record-Keeping
The authorisation holder must ensure that exported goods can be identified in the re-imported products, maintain records of all movements, and complete the re-import within the authorised time period. Failure to comply can result in loss of relief and payment of full duty. Professional guidance from a customs clearance specialist helps ensure all conditions are met throughout the process.
OPR After Brexit
Since Brexit, OPR has become increasingly relevant for UK businesses that previously sent goods to EU countries for processing without customs implications. Now that EU countries are treated as third countries for customs purposes, businesses sending goods to the EU for repair or processing should consider applying for OPR to minimise the duty impact on re-importation.
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