Invoices play a crucial role in various areas of trade and are required by law: VAT can only be recovered via an invoice (with the correct information). The document also has a proof function in the B2B relationship : an accepted invoice provides proof of agreement between business partners. An invoice is also an accounting document and can even serve as security: an invoice can, for example, be pledged. So you better make sure that your invoice is drawn up correctly. This can easily be done by checking our checklist.
Source Marlex
