At the moment, the costs included are your retail price and tax.
Currently, we cannot add the shipping price or custom and duty costs to the invoice. This is because the shipping cost is dependent on the carrier that our supplier chooses, while customs and duty vary depending on your customer's address. As a result, the invoice will only display the item's unit cost and tax.
Please also know that the invoice will not have the applied discount codes to these invoices due to the potential complications when it came to bigger orders with products that weren't Spocket related.