A customs bond is a legal document that is required for goods valued at over $2,500 being imported into the United States. It verifies that all necessary importing fees, duties, and taxes have been paid. This document, also known as an import bond, serves as a form of insurance to protect the U.S. Treasury in case the importer fails to pay any duties, taxes, fines, or fees associated with their imports. Customs bonds can be obtained from government-licensed surety companies, which are financial institutions that specialize in this type of bond.