This piece is aimed at self-employed clients, so if you’re a salary earner or a retiree you can safely move on to the next item. For others, it goes without saying that at tax time you should disclose all your assessable income and only claim legitimate business deductions. Failure to do so exposes you to the risk of penalties and interest on top of the underpaid tax. And the chances of popping up on the ATO’s radar are not negligible.