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    Returns & CX Apr 6, 2027 5 min read

    Customs and Returns: Avoiding Double Duties

    Customs charges duties twice without proper paperwork: once when shipped to customer, once when returned. Mark return shipments as 'returned merchandise' on customs forms to claim re-import exemption.

    The Chart

    DocumentPurpose
    Customs declaration formMark as 'Return / Re-import'
    Original purchase invoiceCustoms needs to verify origin
    Return reason note'Wrong size — defective' OK
    Tracking numberFor customs audit trail
    HS codeMatch original outbound classification

    FAQs

    Customer pays duty on return?

    Sometimes. Country-by-country. EU exempts most returns under 14-day cooling-off period. UK + US generally exempt with proper paperwork. Some Asian countries charge if paperwork incomplete.

    Tools to handle this?

    Easyship, Zonos, Returnly all handle international return paperwork including customs forms. Saves admin time + reduces customer friction.

    Need this on your store?

    Tailor Size Guide ships pre-built size charts for Shopify.