Import/export transactions whereby an item is to be transported from one country to another are automated. An invoice containing a list of one or more part numbers is entered in at a web site and loaded to a server containing a database. A database is of part numbers and their corresponding tariff classification numbers. The uploaded invoice will be compared to the database to output a data record whereby the one or more part numbers uploaded in the invoice now have tariff classification numbers and daily calculation associated therewith. This data record can then be accessed over the Internet at another web site by a customs broker for use in transmitting a report to a customs entity.