Skip to content
Back to Glossary


CAIN (Customs Assigned Importer Number)

A CAIN is a Customs Assigned Importer Number used for foreign importers.

CAIN (Customs Assigned Importer Number)

What is a CAIN?

A CAIN is a Customs Assigned Importer Number. If an importer is importing into the U.S. as a foreign importer of record and they do not have an EIN, Flexport can apply for a CAIN on their behalf. 

Foreign importers of record importing into the U.S. without an EIN will need a CAIN. 

Learn More

Related Help Articles

Do Foreign Importers Need an EIN to Import Into the U.S.? 

Not Based in the U.S.? Importing as a Foreign Importer of Record

Related Glossary Terms

EIN (Employer Identification Number) 

Importer of Record 


What is an Importer Number? - CBP

Ready to Get Started?

Flexport makes shipping your cargo transparent, reliable, and affordable