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Sequential invoicing numbering is a key control measure to prevent VAT fraud and to reduce the VAT Gap, and is used to: Ensure there is a clear audit trail of invoices issued. Ensure suppliers don't issue tax invoices without declaring the tax.

How to create an invoice number numbering your invoices sequentially, for example, INV00001, INV00002. starting with a unique customer code, for example, XER00001. including the date at the start of your invoice number, for example, 2023-01-001. combining the customer code and date, for example, XER-2023-01-001.

A company can generate an invoice number sequence using whatever method works best, chronological or otherwise. It's important to choose a logical invoice number system to make tracking more manageable, but beyond that, you can number invoices however you choose.

Invoice numbers are found at the top of the invoice. They can be alphanumeric, including both letters and numbers (no special characters or symbols) Usually between 3-5 digits long. May also include a client's name or initials.

Consecutive or sequential invoice numbers help to ensure that each invoice is unique and each business transaction can be clearly and comprehensively organized and referenced ? for accounting reasons as well as customer support.

Invoice numbers are one of the most important aspects of invoicing as they ensure that income is properly documented for tax and accounting purposes. They also make it easier to track payments and manage overdue invoices.

Sequential Invoice Numbering Sequentially creating your invoice numbers means moving up numerically by one with every new invoice. You could start with 1, 2, 3, or even 00001, 00002, 00003. The most common sequential invoice numbering approach is to start with 0000000001 (9 zeros, followed by a 1).

The requirements for invoice numbers aren't as stringent in the US as some other countries, which means you can choose a numbering system that makes the most sense for you. Some might choose to number invoices in chronological order, while others will use special identifiers for each customer or product.