Receive money for property should have
Amounts = Tax Exclusive
Tax Rate = Input Taxed
reference
https://www.ato.gov.au/Business/GST/When-to-charge-GST-%28and-when-not-to%29/Input-taxed-sales/
Spend money for mortgage should have
Amounts = do not include Tax
Tax Rate = BAS EXCLUDED
reference
Bank loans do not incur GST
http://www.adriansca.com.au/announcements/common-gst-mistakes
http://www.taxonline.com.au/news/pdf/18
Spend money for Water Bills/Strata should have
Amounts = Tax exclusive
Tax Rate = GST on Expenses