The attached document must be a valid commercial or tax document that describes the expenditure, such as an invoice, receipt, commercial document, ticket or travel document. It must enable the nature of the expenditure to be identified and, depending on the type of document, the supplier or service provider, the date, the location or service and the amount.
Please note.
A POS receipt, bank statement, bank transfer receipt or notification from a payment app may document the method of payment, but does not replace the proof of expenditure. Where necessary, these must be attached alongside the commercial or tax document.