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GigaCommerce

Cross-border & sourcing

ISF

Importer Security Filing

Definition

Also called '10+2' — a filing of shipment and party data that must be lodged with US Customs before ocean cargo is loaded at the origin port. Missing or late ISF filings carry monetary penalties and can trigger cargo holds on arrival.

Defined in Freight & Customs: The Manufacturer's First Shipment.

Where ISF comes up

The guides that put this term to work, rather than just defining it.

Landed cost to US FBA, line by line

Factory price, freight, duty, FBA fees and margin from South Asia to an Amazon US shelf.