Small Business Accounting

What are Invoice numbers?

By

Chris Andreou

What are Invoice numbers? guide

Contents

An invoice number is a unique number that is assigned to each invoice. This number is one of the most important elements of every invoice. Its role is to identify transactions, so it needs to be unique. Invoice number can contain only numbers or letters and numbers. It may contain date of issue, name of project or task.

<p>An invoice number is a unique number that is assigned to each invoice. This number is one of the most important elements of every invoice. Its role is to identify transactions, so it needs to be unique. Invoice number can contain only numbers or letters and numbers. It may contain date of issue, name of project or task.</p>

Read more of our Small Business Accounting guides:

Business accountant available for free consultation

Get a free accounting consultation

We'll walk through everything you need for starting or switching.