If you really want to, though, you can opt for a project related numbering system. That’s way sequential invoice numbers make your life easier. Even if you mark invoices with the client and the month, there is increased possibility for confusion. You can see how this can get you into a muddle! Suddenly you have several invoices labelled ‘3’, but all for different clients, or for the same client but for different months. When a new month starts, you might be tempted to reset the numbers back to ‘1’. So, client 1 starts off with invoice numbered ‘1’, and client 2 starts with an invoice number ‘1’ as well. It can be tempting to have a separate invoice system for each client, or for each month. The possibility for confusion when marking an invoice can be decreased by labelling all invoices… Click To Tweet Does sequential invoice numbers simplify your life? how long it has been since you issued the invoice to the client.

Zistemo will keep an eye on the numbers so you don’t get confused any more. Invoice Templates created with zistemo Invoice Software To know more check what is an invoice and how to create a good invoice to get paid faster. In most simple words an invoice is a document issued by a seller to a buyer that specifies amount and costs of services or products provided by the seller.

Here are some examples of invoice numbers.

An invoice template for openoffice