What are Incoterms? “Incoterms® provide a common set of rules to clarify responsibilities of sellers and buyers for the delivery of goods under sales contracts,” According to export.gov. If you aren’t quite sure which Incoterm is right for your shipment, the tool below will help you figure it out. Simply select who is responsible for each item, then click on ‘What’s the Incoterm?’ to see the result!