My Australian tax return takes me about 20 minutes. The system prefills 99% of the details that they've obtained from my employer, bank, health insurer, stock

My Australian tax return takes me about 20 minutes. The system prefills 99% of the details that they've obtained from my employer, bank, health insurer, stock broker etc directly. All I need to do is fill out my deductions from a running spreadsheet I've maintained throughout the year.