What are Invoice numbers?

Jordan Macey

March 19, 2022

What are Invoice numbers? Guide
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Small Business Accounting

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.

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