Working while you study

When you are employed

Your employer or other payer will ask you to complete a Tax file number declaration. This form allows you to quote your tax file number (TFN) as well as provide other information that helps your employer or other payer calculate the amount of tax to withhold from your pay and send to us.

If you do not have a TFN, or do not know what it is, refer to Guide to tax file numbers. If you are unsure whether or not you are an Australian resident for tax purposes, read Residency - what you need to know.