A Tax File Number (TFN) is like a fingerprint, it is unique to you. Once you are issued a TFN it is yours for life, regardless of whether you change jobs or move countries.

Partnerships, trusts and companies are required to have a separate TFN to carrying on business. However, if you are a sole trader, you must use your own TFN when required to for business tax matters.

However we understand that sometimes things happen resulting in you losing, misplacing or forgetting your TFN.

For expert guidance on all matters related to tax law, LawPath recommends getting in touch with a taxation lawyer.

How to Find out your Tax File Number?

Here are four effective ways to find out your TFN should the need arise.

Option one: Contact the ATO

For a direct approach, you can contact the ATO. The ATO can be reached via the number 13 28 61 between the hours 8.00am to 6.00pm, Monday to Friday. Just be prepared with your ABN or some form of identification if you don’t have an ABN, to provide to the operator should you call.

Option two: Follow the breadcrumbs

Your TFN will be stated on documents such as:

  • Your income tax ‘notice of assessment’;
  • Any correspondence sent to you by the ATO;
  • Any payment summary you received while under employment at any stage of your working life;
  • Account statements from your superannuation fund;

Option three: Paperwork

Another way to find out your TFN is to fill out a form that the ATO provides,. However, just be aware that the ATO will only process the bona fide paperwork that it provides taxpayers, therefore you may need to order a hard copy of the form. Should you need to do this you can find the form on the ATO’s ‘online ordering’ page.

Option four: The Agent

If you have used a tax agent or an accountant in the past, your can request from their records.

Finding out your Tax File Number is much easier than it seems. Individuals have many options so choose the one most convenient.

LawPath’s network of tax lawyers work on a fixed-fee basis, offering fast and affordable legal services to safeguard you and your business. Contact a LawPath consultant on 1800LAWPATH to learn more about customising legal documents, obtaining a fixed-fee quote from our network of 600+ expert lawyers or any other legal needs.

Nina Marie Bishay

Nina is a Paralegal working in our content team, which aims to provide free legal guides to facilitate public access to legal resources. With a passion for copyright law, her research focuses on small businesses, and how they can navigate convoluted legal procedures.