Who is allowed to ask for your TFN in Australia (and who is not)?

Knowing exactly who is allowed to ask, and what they are allowed to do with it, is the simplest defence against TFN-related identity theft.

Who is legally allowed to ask for your TFN?

The Privacy (Tax File Number) Rule restricts TFN collection to a defined list:

• Your employer, once you have started work, on a Tax File Number Declaration form
• Banks and financial institutions, to apply the correct tax rate on interest
• Superannuation funds, to manage and identify your retirement account
• Registered tax agents, to lodge tax returns and manage ATO correspondence on your behalf
• Centrelink and Services Australia, if you are claiming a government payment
• The ATO itself

Each of these organisations must explain why they need it, store it securely, and use it only for the stated tax-related purpose.

Who is not allowed to ask for your TFN?

The list of people who are not entitled to your TFN is much longer. These include:

• Landlords or real estate agents (even for rental applications)
• Phone or internet providers
• Insurance companies (other than for specific tax-related products)
• Friends, hostel staff, or fellow backpackers
• Recruitment agencies (the employer collects it after you are hired, not the agency)
• Anyone offering tax help who cannot show a registered tax agent number (TAN)

If a request for your TFN does not come from the list above, you are entitled to refuse. Refusing is not a criminal matter and cannot be used as grounds to deny you a service.

When can an employer ask for your TFN?

An employer can ask for your TFN only after you have accepted the job and are completing onboarding paperwork. The request comes through a Tax File Number Declaration form, which is a standard ATO document. The employer uses the TFN to apply the correct working holiday maker tax rate of 15% and to report your income to the ATO. They cannot share your TFN with other employers, recruitment agencies, or third parties.

If you have not yet been formally hired and the employer or recruiter is asking for your TFN, that is a warning sign. See our article on what is a Tax File Number Declaration form for details on what the form looks like and when to provide it.

What are the red flags for requests that are almost always scams?

The most common TFN fraud targeting working holiday makers comes from messages like these:

• "Send me your TFN and passport and I will lodge your tax return for you"
• "Send me your TFN and I will check how much super you have"
• "I work for an accountant, send me a photo of your visa and TFN"
• "I can get you a bigger refund if you send me your TFN"

None of these are legitimate. Registered tax agents do not operate through anonymous Facebook accounts or WhatsApp numbers, they do not need your account passwords, and they never promise inflated refunds before reviewing your actual income.

How do you verify a tax agent before sharing your TFN?

Every registered tax agent in Australia has a Tax Agent Number (TAN) listed on the public Tax Practitioners Board register. Before sharing your TFN with anyone offering tax services, verify their TAN number is current. If they cannot give you a TAN or the number does not match the business, do not share any documents.

Our service is delivered by a registered tax agent. Our TAN number is publicly verifiable, and your TFN is handled through a secure tax agent channel rather than through email or messaging apps.

Get in touch with our team to apply for your TFN through our registered tax agent service or to fix any issues with an existing application.