Essential Steps to Take If Your TFN is Lost or Stolen

Losing your Tax File Number (TFN) or having it stolen can be a serious concern. It's essential to act quickly to prevent misuse. This guide will help you understand the steps to take if you find yourself in this precarious situation. 


Understanding the Risk 


When your TFN is stolen or compromised, the risks are significant. Fraudsters may use your TFN to lodge or amend tax returns to claim large refunds. They might also alter your bank account details with the Australian Taxation Office (ATO), redirecting your tax refunds to their accounts. Recognising these risks is the first step in mitigating potential damage. 


Finding Your TFN Online 


If you've forgotten your TFN, you can easily retrieve it using ATO's online services. Access it via your myGov account or the ATO app. This method is convenient and secure. 


Alternative Ways to Find Your TFN 


In case you don't have a myGov account, your TFN can also be found on: 

  • Your income tax notice of assessment. 
  • ATO letters, such as a statement of account. 
  • Payment summaries or income statements from your employer. 
  • Superannuation account statements. Alternatively, your registered tax agent can provide your TFN. 


Immediate Action for Lost or Stolen TFN 


Report the Loss or Theft: If your TFN is lost, stolen, or accessed by an unauthorised party, it's crucial to inform the ATO immediately. In cases of suspected misuse, contact the ATO's Client Identity Support Centre for assistance. They offer advice and implement security measures to monitor your account for suspicious activities. 

Review Your Accounts: Check your tax account statements for any unusual activity or transactions you don’t recognise. 

Change Your Bank Details: If you suspect your bank details have been tampered with, contact your bank to secure your accounts. 

Preventive Measures 

Secure Your Personal Information: Always protect your TFN and other personal information. Avoid sharing it unnecessarily, especially online or over the phone. 

Regular Monitoring: Regularly review your tax records and bank statements to catch any unauthorised activities early. 

Stay Informed: Keep abreast of the latest methods used by scammers and the advice provided by the ATO. 


Protecting Your Personal Information 


The ATO also provides guidance on safeguarding your personal information. This includes being vigilant about sharing your TFN and monitoring your financial statements. 


ATO’s Commitment and Disclaimer 


The ATO emphasises its commitment to providing accurate and clear information. However, they advise seeking professional advice if you're unsure about how the information applies to you. 


Need Assistance with a Lost or Stolen TFN? 


Navigating through the complexities of a lost or stolen Tax File Number (TFN) can be overwhelming. If you have further concerns or require personalised assistance, don't hesitate to reach out to us. Our team of experts is dedicated to helping you secure your financial information and guide you through the recovery process. Contact us today for reliable support and peace of mind. 


Need help with your accounting?

Find Out What We Do
June 15, 2026
June is zooming by! Here’s another handy checklist for business owners—let’s get you sorted for EOFY and tick off those to-dos.
June 15, 2026
EOFY is almost here — are your finances ready? Our guide covers top deductions, super contributions, SMSF essentials and a 30 June checklist to help you maximise your return. Read it here.
June 12, 2026
Not sure what you can claim as a landlord this EOFY? From loan interest to depreciation, we break down the most common (and overlooked) rental property tax deductions. Read the full guide.
May 14, 2026
One of the most powerful decisions you can make with your superannuation is whether to run your own self-managed super fund (SMSF) and whether to invest in property through it. Most people know it's possible to use super to buy property. Far fewer know how to do it well. The following seven tips are designed to help you make the right decisions. 1. You Can Borrow Money to Purchase Property in Superannuation. Don't have enough in your SMSF to buy an investment property outright? Since 2008, superannuation held in a self-managed super fund can be used to borrow money for property purchase. This is done through a 'limited recourse loan' using a Bare Trust as the Custodian entity. You can't borrow the total value of the property—typically it's up to 80% for residential properties and 60% for commercial properties, with the required deposit held in the SMSF as security. The SMSF then makes the loan repayments, with rental income received by the fund and property expenses paid by the fund. Importantly, if there is a default on the loan, your other assets in the SMSF are generally protected from standard debt recovery and bankruptcy proceedings. The lender only has recourse to the property itself. Upon completion of the loan repayment, ownership of the property transfers legally to the SMSF. 2. Follow These 8 Steps to Set Up Your SMSF Setting up an SMSF properly can be a complex process. It’s best to set up an SMSF with the assistance of a qualified superannuation advisor, like us! We can assist with both the initial setup and the ongoing management of your fund. There are eight core steps to SMSF set up: Select the appropriate structure and name Sign the trust deed that covers how your SMSF is set up and run (it can have up to four members) Establish a trust for the SMSF by investing assets into the fund Register your SMSF with the ATO Set up a separate bank account for your fund Submit your tax file number (and those of any other trustees) Obtain an electronic service address to receive employer contributions into your fund (if applicable) Roll over funds from your existing superannuation account into your SMSF 3. Keep a Liquidity Buffer If you're buying property through superannuation, make sure you plan to keep a liquidity buffer of cash and/or shares in your fund. Lenders will check for this before lending to you—it should be at least 10% of the value you intend to borrow. But beyond satisfying the bank, it's simply good risk management. Property is an illiquid asset. Having accessible funds in the SMSF means you're not caught short if repairs are needed, the property sits vacant, or an unexpected expense arises. Because superannuation is central to most Australians' retirement security, the government has carefully regulated what can and can't be done with it. They don't want people gambling their retirement away on poor investments or incorrectly using their superannuation fund. 4. Use the Rental Income to Repay Your Loan You cannot live in the property you purchase through your SMSF until after retirement. Most people purchase an investment property and use the rental income generated to repay the loan—which makes excellent financial sense. The key is selecting a property that rents easily and delivers a strong rental return. Your purchasing criteria may look a little different to buying a home you'd live in yourself. For example, proximity to public transport, local amenities, and average rental rates in the area matter more than personal preference. 5. Get It Right and Enjoy Significant Tax Efficiencies One of the most compelling reasons to invest in property through superannuation is the tax efficiency on offer. These benefits can significantly improve the long-term return of a property investment compared to holding it in your own name. Key tax benefits include: No capital gains tax or tax no yearly investment earnings if under super caps. Salary sacrifice advantages if you're sacrificing salary payments into super, loan repayments are effectively tax deductible. Capped tax on investment income—the maximum rate of tax on income after expenses is 15%. Any capital gains on investments held for 12 months or more, is taxed at 10%. Standard investors outside super can pay up to 47%. 6. Follow the Same Due Diligence Rules as Any Property Purchase Buying through superannuation doesn't mean relaxing your standards. If anything, the rules governing SMSFs mean you need to be more rigorous, not less. Property is likely one of the most significant financial decisions of your life. Research, not emotion, should drive your choices. The same rules apply whether you're buying in or out of super: Visit and compare multiple properties Know the values of similar properties in the same area Get all property checks performed by the right professionals Shop around for the right loan structure and lender Don't abandon good investor habits just because the structure is different. 7. Always Get Quality Professional Advice Nothing comes without risk—but the right advice significantly mitigates it. The key is understanding what you're getting yourself into: making informed decisions based on accurate data; keeping a diversified superannuation portfolio that doesn't place all your eggs in one basket; and not underestimating how complex buying property in superannuation can be. Sound Simple? It’s all in the details. If the above tips have made it sound straightforward, know that the detail is where the complexity lives. Getting professional advice from the start helps ensure you make the best possible decisions for your future. When selected according to rigorous property-purchasing criteria, property can be an excellent way to grow your superannuation and increase your chances of building a retirement fund that supports the lifestyle you want. Ready to Explore Property in Your SMSF? Whether you'd like to discuss whether an SMSF is right for you or need help setting one up, reach out to Ascent Accountants . If you want assistance managing the property within your fund, contact the Ascent Property Co team .
May 14, 2026
June 30 is closer than you think. Learn what tax strategies are still on the table, how to keep more of what you earned this year, and how to get your payroll ready for Payday Super from 1 July 2026.
May 14, 2026
Is your business structure still working for you? This EOFY, learn how to read the signs of growth, rethink your strategy, and build a real plan from the numbers that actually matter.
More Posts