What is an Electronic Invoices or e_Invoices _ An electronic invoice (also called an e_invoice or eBill) is the result of a billing method that doesn't require a paper copy as a backup in order to demonstrate its authenticity. For this reason, an electronic invoice functions as a software_generated file, which compiles the information related to a commercial transaction, its payment and corresponding tax obligations.
Invoice example With GST & PST An invoice not only shows the customer or client how much money is due but provides tax information, in some countries multiple taxes may apply, for example in Canada it is required to put the Supplier's identification numbers for GST and QST taxes purposes. Whenever a taxable sale is made, the customer must be informed that GST and QST are added to the selling price. As there are no standard invoices required by law for this purpose, you must indicate the amount of the taxes on the cash register receipt; on the invoice or contract remitted to the customer. If you choose to indicate the GST and the QST, the amounts must be stated clearly.The European Union requires a VAT (value added tax) identification number on invoices between entities registered for VAT.