The ATO has been keeping a closer eye on people earning income from the digital economy services like Airtasker, Uber & Airbnb and others.
So it's essential that you fully and accurately disclose all your incentive income (and
expenses!). If you don't, you could find yourself being audited by the ATO. They will charge interest and penalties on any unpaid or underpaid tax.
Disclaimer: Askable is not authorised to give taxation advice. Contact a tax professional for advice on your own individual tax obligations