Unprofessional Invoicing?
Posted: Tue Jun 13, 2017 3:35 pm
Is it a legal requirement for invoices to have a unique sequential reference no? If so, why would a company not use unique nos? Are there any benefits from not using them? Any penalties for not not using them? Also, do quotations have to have unique numbers also and is it okay if a document is headlined 'quotation/invoice'?