Remembering long numbers can be challenging, but your tax file number (also known as your TFN) can be especially difficult. While remembering phone numbers can be relatively easy thanks to frequent use, your tax file number typically doesn’t get anywhere near the same kind of use that your friends’ and family’s phone numbers do.
Don’t panic if you have forgotten your tax file number. There are a generally at least four ways for how to find your tax file number.
Phone the ATO
You can call the Australian Tax Office on 13 28 61 between the hours 8.00am to 6.00pm, Monday to Friday. However, before you pick up your phone, be sure to have your Australian Business Number (ABN) on hand. If you don’t have that either, don’t fret — simply gather together various forms of ID to verify your identity to the ATO.
Check your filing cabinet or digital records
A common place where people like to save their tax file number is on their phone or email folder. If you haven’t done this already, it might be a good idea to keep a copy of your tax file number so that you can access it wherever you are. Your tax file number should be present on your income tax form (also known as a ‘notice of assessment’), a payment summary, superannuation fund documents, or any other printed exchanges that you’ve shared with the ATO.
Fill out a special ATO tax file number form
Filling out forms is a hassle. Unfortunately, you will need to place an online order to get a hard copy version of the form delivered to you. Currently, there is no online-only way of processing your TFN request. You can find the form on the ATO’s ‘online ordering’ page.
Your agent or accountant
If you have previously worked with a tax agent or accountant, they should have a copy of your tax file number on hand.
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