Can used books bought off Amazon be claimed as a tax deduction in Australia?
VAT = Value Added Tax (as an Aussie think "GST") This is applicable in Britain. Basically, if you were in Britain, and if you could claim VAT as a deduction, that invoice is not sufficient proof to make the claim. But you're in Oz so it doesn't apply to you in any case. For work-related deductions like book purchases, see http://www.ato.gov.au/individuals/content.asp?doc=/content/00216829.htm&pc=001/002/068/001/002&mnu=&mfp=&st=&cy=1  Issues such as the books being second hand or purchased online are not cited in the instructions as relevant/limiting factors. In fact, if you really want to get into the nitty gritty, you could claim the work-related proportion of your internet access fees as a deduction (question D5 instructions, above, cover that as well).