What Is Duty Drawback in Canada?
Duty drawback is a Canadian customs program under Sections 89 to 117 of the Customs Act that provides a refund of duties paid on imported goods that are subsequently exported from Canada. The program exists because import duties are intended to apply to goods that enter the Canadian economy — if goods leave Canada without being consumed domestically, the economic rationale for the duty disappears.
Duty drawback is not a niche program for large exporters. It applies to a wide range of import and export scenarios that many businesses encounter without realizing it: goods returned to the foreign supplier, goods imported for distribution with some volume re-exported to the USA, and materials imported for use in manufacturing products that are then exported.
Claims must be filed with CBSA within four years of the original import date. After that deadline, the opportunity is permanently forfeited regardless of the amount of duties paid.
Which Import and Export Scenarios Qualify for Drawback?
The most straightforward drawback scenario is goods exported in the same condition as imported. If you imported a shipment of consumer goods, paid duties, and then exported some or all of that inventory to a US customer without modification, the duties paid on the exported portion are refundable.
Manufacturing drawback covers situations where imported materials are used as inputs in manufacturing a product that is subsequently exported. For example, if you import components, assemble them into a finished product in Canada, and export the finished product, the duties paid on the components may be recoverable.
Defective or non-conforming goods are also eligible. If goods arrive in Canada and are found to be non-conforming to the purchase agreement — wrong specification, damaged, or defective — and are returned to the foreign supplier, the duties paid can be claimed as a drawback.
How to Calculate and File Your Duty Drawback Claim
A duty drawback claim requires matching specific import entries to specific export records. For each claim, you identify the import entries on which duties were paid, the corresponding export records showing the goods left Canada, and the quantity or value relationship between the two.
CBSA Form K32 is the primary drawback claim document. The form captures the import entry details, the export documentation references, the duties originally paid, and the calculated drawback amount. Supporting documentation includes the original customs entry (B3), proof of duty payment, export records (export B13 or equivalent shipper's export declaration), and evidence linking the imported goods to the exported goods.
Claims are submitted to the CBSA drawback program and reviewed against the supporting documentation. CBSA may audit the claim and request additional evidence before issuing the refund. The maximum recovery is 99% of duties paid — CBSA retains 1% as an administrative fee.
The Four-Year Time Limit and Other Filing Rules
Drawback claims must be filed within four years of the date the goods were originally imported. This deadline is absolute — claims filed after the four-year window are rejected regardless of merit or the amount of duties at stake. Many businesses discover their drawback eligibility after this window has passed for older shipments.
The export must also occur within a reasonable time after import for the claim to be eligible. CBSA generally expects goods to be exported within four years of import, though different timelines may apply depending on the drawback category.
Interest does not accrue on drawback refunds — you receive back only what you paid, minus the 1% administrative fee. However, recovering duties that were unnecessarily paid can meaningfully improve cash flow and unit economics for import programs that include export activity.
Why Many Businesses Miss Eligible Drawback Opportunities
The most common reason eligible drawback goes unclaimed is awareness. Many importers — especially those whose primary business is domestic sales — do not realize that the incidental re-export of inventory to a US customer, or the return of defective goods to a supplier, creates a drawback opportunity.
Record-keeping is another barrier. To file a successful drawback claim, you need to link specific import entries to specific export records. Businesses that do not maintain organized import/export records in a way that supports this matching process cannot reconstruct the necessary documentation after the fact.
Ezcustoms proactively reviews client import and export records to identify drawback opportunities — including opportunities on past shipments still within the four-year window. If you regularly import and export, a review of your records may uncover significant recoverable duty amounts.
Related Service
If this topic applies to your current import program, you can also learn more about our service support here: Duty Drawback Services.