Obtaining a Tax File Number in Australia in (2024-25): Complete Guide

A Tax File Number in Australia is a special identifier granted by the Australian government and consists of nine digits and is primarily used for taxation and government-related purposes.


    Note:This form is not for job seekers or salary employees.

    *Not valid for Local Residents/Companies.

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    tax file number in australia

    Taxation is an essential aspect of every citizen’s financial responsibilities, and in Australia, it all begins with a tax file number (TFN). A tax file number is a special identifier provided by the Australian Taxation Office (ATO) to individuals and businesses registered in Australia for taxation and financial purposes.

    A tax file number in Australia is a nine-digit number that is a crucial part of the Australian taxation system and is used to track financial transactions, including the payment of taxes and government benefits.

    Obtaining a TFN is an essential step for anyone living or working in Australia, as it allows individuals to engage in various financial activities, such as starting a job, opening a bank account, or lodging a tax return.

    What is a Tax File Number (TFN)?

    A Tax File Number, commonly known as a TFN, is a special identifier granted by the Australian government. It consists of nine digits and is primarily used for taxation and government-related purposes. Having a TFN is crucial for anyone who earns an income in Australia, as it allows the government to keep track of your tax obligations.

    Why Do You Need a Tax File Number in Australia?

    • Income Tax: With a TFN in Australia, employers can withhold the appropriate amount of tax from your pay. Without it, you may be subject to greater taxation.
    • Bank Accounts: If you don’t supply your TFN in Australia, the highest rate of tax may be applied to interest received on your bank accounts.
    • Government Benefits: To be eligible for specific government advantages, such as the Family Tax Benefit or Student Allowance, a TFN is essential.
    • Superannuation: Managing your retirement funds and ensuring you’re not taxed unnecessarily on super payments also requires a TFN in Australia.

    How to Acquire a Tax File Number in Australia?

    The Tax File Number is crucial for many financial activities in Australia. Hence, applying for one should be a priority if you’re eligible. Here’s a more detailed guide:

    Australian Residents:

    • Online Application: Residents can apply for TFN in Australia online via the ATO’s official website. Once on the site, navigate to the ‘Individuals’ section and then the ‘Tax File Number’ category. Follow the prompts, filling in the needed personal information.
    • Documents Needed: You’ll require proof of identity records such as an Australian birth certificate, passport, or citizenship certificate. In some cases, secondary documents like school reports or medical records may be required.

    Non-residents and Foreign Passport Holders:

    • Australia Post: Non-residents or those with foreign passports can visit a participating Australia Post outlet to apply in person. The application will require a foreign passport and a copy of your visa or other supporting documents. You’ll also need to complete the TFN application form available online or at the outlet.

    Working Holiday Makers or Students with a Visa:

    You can apply online via the ATO website. Ensure you have a valid overseas passport, details of your Australian visa, and any reference numbers from the Department of Home Affairs.

    Australians Abroad:

    • Online Application: Using the ATO website, you can submit an online application if you’re an Australian living overseas. Follow the instructions for residents, ensuring that you provide details of your current overseas address.
    • Australian Embassy or Consulate: Another option is to apply through an Australian embassy or consulate, which can guide you through the process.

    Processing Time for TFN in Australia

    Once your application is complete, it typically takes about 28 days to receive your TFN in Australia. The ATO will send it to the postal address included in your application.

    Different Types of Tax File Number (TFN) Required for Various Businesses

    Here are some of the different types of Tax File Numbers required for Various businesses in Australia are

    TFN Registration for Individuals

    If you are self-employed or want to operate as a sole trader, you will file returns with the ATO using your personal TFN. The application procedure differs depending on your residency status:

    • Residents of Australia who do not have a passport: The online service is not accessible in this circumstance. Instead, you may apply in person at a Services Australia Centre or send the online form with your identification papers to Australia Post.
    • Foreign passport holders, permanent migrants, and temporary visitors: These people may apply for employment in Australia via Individual Auto Registration (IAR), but they must also have a valid visa.
    • People residing outside of Australia: If you live outside of Australia but receive income from Australia, you may be required to apply for a TFN to obtain a refund on any tax withheld on interest from an Australian bank account or share dividends.
    • If you are an Australian citizen with a passport, you may apply online using myGovID if you are 15 or older and have at least one additional identification document, such as a driver’s license. The online application process is short, with electronic confirmation usually arriving within 12 hours and formal notice by mail arriving between 10-28 days.

    TFN Registration for a Company

    If you run your firm as a corporation, it is treated as a distinct tax-paying entity. As a result, you must get a company TFN from the Australian Business Register (ABR). This procedure may be completed simultaneously with the application for an Australian Business Number (ABN). Depending on your circumstances, you will need to give information such as your Australian Company Number (ACN) or Australian Registered Business Number (ARBN), physical company locations, authorized contacts, any associate’s data, and your business activities. You may apply yourself or hire a licensed tax agent to help you.

    TFN Registration for a Partnership

    A partnership, unlike a corporation, is not a distinct legal entity, yet it must have its own TFN and ABN. Partnerships must submit yearly partnership tax returns, and individual partners must file personal taxes as well. Individual partners record their share of partnership earnings or losses on their tax returns, rather than the partnership paying income tax on gains. Follow the same steps as you would for a firm to apply for a partnership TFN.

    TFN Registration For Charity

    A distinct trust TFN is required to operate a trust, whether as a trustee or beneficiary. This TFN is unique from your personal TFN and is required for trust-related financial transactions.

    Protecting Your Tax File Number in Australia

    Your tax file number is a vital and confidential piece of information. It must be protected to avoid fraud or identity theft.

    • Limited Sharing: Only provide your TFN in Australia when it’s necessary, such as to your employer, financial institutions, or authorized tax agents. Be wary of unsolicited requests for your TFN.
    • Secure Storage: Avoid carrying your TFN with you or keeping it in locations that are simple to find. If you’ve written it down, ensure it’s in a secure location. Consider using encrypted digital storage if storing it electronically.
    • Monitor Financial Statements: Regularly check bank statements, superannuation, and tax statements to ensure no unauthorized activities are taking place.
    • Report Misuse: If you believe your TFN has been stolen, lost, or misused, contact the ATO immediately. They can offer advice on how to proceed and help secure your TFN.

    ABN (Australian Business Number)

    When running a company, you may apply for an Australian Business Number (ABN) while also enrolling for a TFN. It is critical to understand that an ABN is not a substitute for a TFN, but rather an extra 11-digit number that identifies your company to consumers and the government. It fulfils many functions, including

    • Introducing your company to consumers and suppliers
    • Using Pay As You Go (PAYG) credits
    • Using the Goods and Services Tax Credit
    • Making use of an Australian domain name
    • Using energy credits


    Tax file number in Australia plays a vital role in the country’s taxation system and financial affairs. It is a special identification number given to people and companies for tax and financial reasons. The TFN helps streamline tax-related processes, ensures accurate reporting of income, and facilitates efficient government services. It is essential for individuals, both residents and working holidaymakers, as well as various entities such as businesses and trusts. Protecting one’s TFN and using it responsibly is crucial to maintaining financial security and complying with Australian tax laws.


    A TFN is a special 9-digit number granted by the Australian Taxation Office (ATO) to people and companies for tax and superannuation reasons.

    While it’s not mandatory to have a TFN, not having one can result in higher tax withholdings and limitations in accessing certain financial and governmental services.

    Typically, after submitting your application, you ought to get your TFN within 28 days. It will be mailed to the address you provided in your application.

    No, applying for a TFN is free of charge.

    If you’ve lost or forgotten your TFN, you can find it on a previous tax notice of assessment, a payment summary, or by logging into your myGov account linked to the ATO. 

    No, a TFN is issued to people, but an ABN is issued to companies. Businesses, on the other hand, need a TFN for tax reasons.

    If you possess specific qualifications, you may apply for a TFN online via the ATO’s website. Otherwise, you may be required to submit a hardcopy application.