TFN & ABN guides
Plain-English guides to getting set up in the Australian tax system — written for newcomers, students and new business owners.
TFN guides
What is a TFN? Your Tax File Number explained
What a Tax File Number is, who needs one, what it's used for and how it differs from an ABN — explained in plain English.
What does a TFN look like? Format and where to find yours
What an Australian Tax File Number looks like, where it appears on your documents and how to recognise it — plus how to keep it safe.
How to apply for a TFN in Australia
Step-by-step guide to applying for a Tax File Number: which route fits you, what you need, how long it takes and the mistakes that cause delays.
How to get a TFN: options for every situation
How to get a Tax File Number as a first-time applicant, temporary resident, student, current worker, or if you've lost your old one.
How long does it take to get a TFN?
Realistic TFN processing times in Australia: online applications, paper forms, manual reviews and what to do if your TFN hasn't arrived after 28 days.
Where can I find my TFN? How to recover a lost Tax File Number
Lost your Tax File Number? Where to find it on your documents and in myGov, who to call, and why you shouldn't apply for a new one.
How to find your TFN on myGov
Step-by-step guide to finding your Tax File Number through myGov and ATO online services, plus what to do if you can't link the ATO.
How to apply for a TFN as an international student
TFN guide for international students in Australia: work rights, how to apply for free online, documents, timing and what to do once your TFN arrives.
ABN guides
What is an ABN? Meaning, uses and who needs one
What an Australian Business Number is, who needs one, what it's used for and how it compares to a TFN and an ACN.
How to get an ABN in Australia: step-by-step
How to apply for an Australian Business Number for free: entitlement, information you need, the application steps and mistakes that lead to refusal.
How long does it take to get an ABN?
ABN processing times: when you get an instant outcome, when applications are reviewed (up to 20 business days) and what to do about delays.
How much does an ABN cost in Australia?
Registering an ABN with the government is free. What you might pay for instead: business names, company registration, accountants or application services.
Is an ABN the same as a TFN?
No — a TFN identifies you for tax, an ABN identifies a business. Who needs which, how they're used and how they work together.
Business guides
What is a super fund ABN and why does it matter?
Why every super fund has an ABN, where you need it (new job, rollovers, SMSFs) and how to look it up — including for temporary residents.
Understanding ACN numbers: a practical guide
What an Australian Company Number (ACN) is, who needs one, how it differs from an ABN and how companies get and keep it.
