Hello: I'm outside Australia and will be working under contract, writing a script, creating 2D animation, and editing video for a Melbourne non-profit. They want me to invoice them via an ABN. I know nothing about Australian tax laws, so I wanted to confirm...
1) Is an ABN a must, because this work will be seen publicly, so a Statement by a Supplier form does not apply?
2) If I have an ABN and am then considered a business inside Australia, am I subject to taxes as a business?
3) Does the GST factor into any of this?
4) Do I need to worry about any other taxes I haven't thought of, like an actual tax return?
Thanks for your help!