A Tax File Number (TFN) is a nine‑digit personal reference issued by the Australian Taxation Office (ATO). For international students who intend to work in Australia or who receive income from interest-bearing bank accounts, a TFN is not optional — it is the mechanism that prevents employers and financial institutions from withholding tax at the top marginal rate. In 2025, the ATO has continued to tighten identity-verification procedures for non‑residents, and the average processing time for online applications lodged from within Australia has drifted to 28 calendar days (ATO service standard, updated 15 January 2025). Students who begin employment before a TFN is issued must complete a Tax File Number Declaration form within 28 days of starting work and tick the box indicating they have applied for a TFN. If the TFN is not quoted within that window, the employer is required to withhold 47% from the first dollar of earnings under the no‑TFN withholding schedule (ATO PAYG withholding tables, effective 1 July 2024). Additionally, from 1 January 2025, the Commonwealth Bank, ANZ, NAB and Westpac have all standardised their account-opening workflows to request a TFN at the point of application for student transaction accounts that earn interest; failure to supply the TFN results in automatic 47% withholding on any interest credited. These operational changes make it essential that international students lodge their TFN application within the first week of arrival.
Eligibility and Pre‑application Requirements
Who qualifies for a TFN as an international student
An international student is eligible to apply for a TFN if they hold a valid visa that permits work in Australia and they are physically present in the country at the time of application. The Department of Home Affairs confirms that the Student visa (subclass 500) generally includes work rights of up to 48 hours per fortnight while the course is in session, and unrestricted hours during scheduled course breaks (Home Affairs, “Check work conditions for visa holders,” last reviewed 1 July 2023). Holders of a subclass 500 visa who have not yet arrived in Australia cannot apply; the ATO’s online application system will reject an application if the visa is not activated by an entry stamp or digital arrival record.
Documents required before starting the application
The ATO requires three items before the online application can be completed:
- Passport – the same passport used for the student visa application. The name and date of birth must match the visa record exactly.
- Visa grant notice – the PDF letter issued by the Department of Home Affairs, which contains the visa grant number and the applicant’s Transaction Reference Number (TRN). The ATO system cross‑references this against the Department’s Visa Entitlement Verification Online (VEVO) database in real time.
- Australian residential address – a physical street address where the ATO can mail the TFN notification letter. Post office boxes are not accepted for first‑time TFN applicants. University‑managed student accommodation addresses are acceptable.
Common mistakes that delay processing
The most frequent cause of delay is a mismatch between the name on the passport and the name entered in the ATO form. Middle names listed as part of the given name on the passport must be entered in the same sequence. A second common error is entering a temporary address, such as a hotel or an Airbnb booked for the first five nights, which results in the TFN letter being returned to sender. The ATO does not re‑issue a TFN notification letter by email; a lost letter requires a separate request through the ATO’s identity‑verification phone line (13 28 61), which can add 10 to 15 business days.
Step‑by‑Step Application Process in 2025
Online application via myGovID and the ATO portal
Since 1 November 2024, the ATO has required first‑time TFN applicants who are foreign passport holders to use the online Individual Auto‑Registration (IAR) system accessed through the ATO website. The applicant must have a myGovID set to at least a “Standard” identity strength, which for international students means verifying an Australian mobile phone number and an email address. Once the myGovID is established, the applicant navigates to the “Apply for a TFN” page on ato.gov.au, selects “Foreign passport holders, permanent migrants and temporary visitors,” and completes the digital form. The system conducts a real‑time VEVO check and typically provides an on‑screen acknowledgment with a reference number. The ATO’s published service standard for this pathway is 28 calendar days (ATO, “Tax file number – application processing times,” 15 January 2025).
Paper application alternative and processing times
A paper application using the form “Tax file number – application or enquiry for individuals” (NAT 1432) remains available for students who cannot complete the online identity verification. The completed form must be lodged in person at a Services Australia centre together with original identity documents. Services Australia staff certify the copies and forward the application to the ATO. The ATO advises that paper applications lodged through this channel can take up to 56 calendar days (ATO, NAT 1432 instructions, version dated 3 October 2024). International students in regional areas where Services Australia centres have limited opening hours should plan for the longer timeline and avoid commencing employment until the TFN has been received, unless they are prepared for the 47% withholding rate.
How to track an application and what to do if the TFN does not arrive
The ATO does not provide a public online tracking tool for TFN applications. If the TFN notification letter has not arrived after 28 calendar days for an online application, the applicant should call the ATO on 13 28 61 between 8:00 am and 6:00 pm AEDT, Monday to Friday. The ATO call centre can confirm whether the application is still being processed or whether it has been rejected due to an identity mismatch. If the application is approved, the ATO operator can provide the TFN over the phone after the applicant passes a verbal identity check. The written notification letter will still be mailed to the recorded address.
Using the TFN for Employment and Banking
Providing the TFN to an employer and completing the TFN Declaration
Once the TFN is received, the student must complete a Tax File Number Declaration form (NAT 3092) and give it to their employer before the next pay run. The employer uses the information on the form to select the correct PAYG withholding table. For international students who are Australian residents for tax purposes — generally those who are in Australia for more than six months and whose behaviour indicates a settled residence — the tax‑free threshold of $18,200 for the 2024–25 income year applies on a pro‑rata basis if the student arrives part‑way through the year. Students who do not meet the residency test are taxed from the first dollar at the foreign resident rates, which start at 32.5% for income up to $120,000 (ATO, “Foreign resident tax rates 2024–25,” updated 1 July 2024). The employer relies on the student’s self‑declaration on the TFN Declaration form to determine which rate to apply.
TFN requirements for Australian bank accounts and interest withholding
Under the Taxation Administration Act 1953, Australian financial institutions must withhold 47% of interest payments where the account holder has not quoted a TFN. In 2025, the four major banks have integrated TFN capture into their digital onboarding for international student accounts. ANZ’s “Student Access Advantage” account, for example, displays a non‑dismissible prompt during the application flow that warns of the withholding obligation. Students who open an account before receiving their TFN can supply the TFN later through online banking or at a branch; the bank will then stop withholding on future interest payments. Interest withheld in a prior period is not refunded by the bank — it must be claimed as a credit when the student lodges an annual tax return.
Linking the TFN to myGov and the ATO online account
After receiving the TFN, the student should link it to their myGov account. This requires the TFN, the student’s name exactly as recorded by the ATO, and their date of birth. Once linked, the ATO online account provides access to income statements pre‑filled by employers, payment summaries, and the lodgment of the annual tax return. The ATO’s myGov integration also allows the student to update their address and contact details without calling the call centre, which is particularly useful for students who move between share‑houses during the academic year.
Tax Residency, Returns and Refunds
Determining tax residency status as an international student
Tax residency for Australian purposes is not the same as immigration status. The ATO applies a 183‑day physical presence test and a broader “resides test” that considers factors such as the student’s accommodation arrangements, the length of the course, and whether the student’s family remains overseas. The ATO’s guidance (Taxation Ruling TR 98/17, last amended 8 March 2023) indicates that a student enrolled in a degree of two or more years who rents a room in Australia and does not maintain a permanent home overseas will generally be treated as an Australian resident for tax purposes. Being classified as a resident gives access to the tax‑free threshold and the low‑income tax offset, which can reduce the tax payable to zero for annual income up to $21,884 in 2024–25.
Lodging an annual tax return and claiming refunds
Every individual who earns income in Australia must lodge a tax return by 31 October following the end of the financial year on 30 June. International students who have had tax withheld from employment income or bank interest often receive a refund if their total income is below the effective tax‑free threshold. The ATO reports that 92% of tax returns lodged through myGov are processed within 14 calendar days (ATO, “Annual Report 2023–24,” Table 3.2, published 22 October 2024). Refunds are paid by electronic transfer to an Australian bank account; the ATO does not issue cheques to overseas addresses.
Superannuation and the Departing Australia Superannuation Payment (DASP)
Employers are required to contribute 11.5% of an employee’s ordinary time earnings into a complying superannuation fund (Super Guarantee rate effective 1 July 2024). International students are entitled to these contributions even if they work only a few hours per week. When the student leaves Australia permanently and their visa has ceased, they can apply for a Departing Australia Superannuation Payment (DASP) through the ATO’s online system. The DASP is taxed at 35% for the taxed element of the superannuation benefit (ATO, “Departing Australia superannuation payment,” rates current from 1 July 2024). The student must have a TFN recorded with their super fund before the DASP application can be processed; super funds that hold an account without a TFN are subject to additional withholding and reporting delays.
Practical Steps After Arrival
International students should take four specific actions in the first week after clearing immigration. First, activate an Australian mobile phone service and create a myGovID using that number; the ATO’s identity system will not accept an overseas number. Second, secure a fixed residential address that will be valid for at least two months — university accommodation confirmation letters are sufficient — and use that address for the TFN application. Third, lodge the TFN application online before accepting any paid employment; the acknowledgment number should be recorded and given to the employer on the Tax File Number Declaration form if work begins before the TFN arrives. Fourth, open an Australian student bank account and supply the TFN as soon as the notification letter is received, to avoid 47% interest withholding that cannot be recovered until the end of the financial year. Students who follow this sequence avoid the most common compliance traps and ensure that their first Australian pay is taxed at the correct rate.