There are a number of reasons you may have to lodge a tax return for the 2007–08 income year (1 July 2007 to 30 June 2008).
To ATO offers a detailed explanation of the topic and a useful online tool to work through if you are not sure.
FREE Fact Sheet ==Do I need to lodge a tax return?
Go to this ATO link ==> Lodgement decision tool
By David Maynard
My Tax Zone