An ABN (Australian Business Number) is a unique number issued by the ATO to all eligible entities. The ABN system works together with the GST and PAYG withholding system.
Often confused with the ACN, a company’s ABN will always consist of their ACN with an additional two-digit prefix. You must have an ACN before you can apply for an ABN.
As a general rule of thumb, your ACN identifies your company, and an ABN identifies your company to other businesses and various government agencies (such as the ATO).
You can obtain your ABN completely free of charge with Veromo when registering a company with us.