Yes. Put simply, any business operation which pays tax must have a Tax File Number (TFN). A TFN is your identifier with the the ATO.
You can apply for a TFN when completing the ABN application for your trust, it’s as simple as electronically ticking a box! Otherwise you can apply for one directly through the ATO at a later stage but you should have a TFN registered prior to the commencement of business activities.
This information is of a general nature only and does not constitute professional advice. You must seek professional advice in relation to your particular circumstances before acting.
Updated — Sep 7, 2015