'IGST on high-seas sale of imports is levied only during customs clearance'

The importer would be required to furnish the entire chain of documents, says the author

On high-seas sales, will IGST be levied twice — first on high-seas sales and then on custom clearance?
 
The CBEC Circular no 33/2017-Cus dated August 1, 2017 clarifies that IGST on high-seas sale transactions of imported goods, whether one or multiple, will be levied and collected only at the time of importation — i.e. when import declarations are filed before the Customs authorities for customs clearance purposes for the first time. Further, value addition accruing in each such high-seas sale will form part of the value on which IGST is collected at the time of clearance. The importer (the