Read paragraphs 129 and 130 of TR2002/14
http://law.ato.gov.au/atolaw/view.htm?locid=%27TXR/TR200214/NAT/ATO%27&PiT=99991231235958
This TR concerns a retirement village operator receiving lump sum payments for rent upfront.
Here is a link to the case mention in the above quote, Case B47, 70...