I'm an australian doing postgrad in australia, and my current government awarded income is tax-exempted.

I would like to know if in a couple of years when I start working, I can tax-deduct the currently tax-deductible expenses I've been paying on some rental property I lease out.

Were my current income taxable, I'd be able to deduct the expenses on the rental property now; however, I have nothing against which I can tax deduct it.