The end of easy de minimis: what US-bound e-commerce sellers must rethink

For years, cross-border e-commerce into the United States was built on Section 321 de minimis: parcels under the threshold entered duty-free with minimal formalities. That foundation has been substantially dismantled — low-value shipments from major origin countries now broadly face duties and formal processing, and the economics of ship-one-parcel-at-a-time models have changed with it. Because these rules have moved several times, verify the current treatment for your origin country before pricing your next season.

The strategic responses we are implementing with sellers fall into three buckets. First, consolidation: moving goods in bulk to North America, clearing commercially, and fulfilling domestically — trading parcel-level duty avoidance for lower freight per unit and faster delivery promises.

Second, landed-cost transparency: sellers shifting to DDP (delivered duty paid) pricing absorb duties into the retail price rather than surprising customers at delivery. That requires accurate HS classification per SKU — a spreadsheet exercise that pays for itself in avoided disputes and returns.

Third, fulfillment placement: with Canadian de minimis for US-origin goods under CUSMA courier thresholds still relatively favourable, some sellers now split inventory — a US node for US customers, a Canadian 3PL for Canadian customers — rather than serving both markets from one warehouse.

None of this is one-size-fits-all. Order volume, SKU count, product duty rates and return rates all move the answer. We model the scenarios with sellers before they commit to a structure — it is far cheaper to model than to migrate.