Australian Business Register (ABR) The ABR is a database of business identity information provided through ABN (Australian Business Registration). Apply for an ABN through this site, change ABN details, apply for a Tax File Number (TFN), register for Goods and Services Tax (GST), or register for Pay as You Go (PAYG) withholding
GovForms (business.gov.au) GovForms (formerly Transaction manager) is a single entry point for businesses to quickly and conveniently find, manage and complete forms online for all levels of government, from registering for an ABN, applying for licences, to paying your rates