New to Australia, operating under my own name, have ABN, preparing in advance my first report by 30th June. Since I only did one hand of business, should be easy and no reason to delay. I noticed everywhere the website says "you can", not "you must", have an AUSKey, but it seems one can't proceed on unless he obtains such a unit. Is it a must? I have 10+ usb keys from all banks and governments (where I was from), had to respond to recall & forced upgrade every year, hate to have one additional more.. Most of these keys are used once a year only, when the OS (be linux or Windows) or computer is already another one. I have perfectly safe long passwords by the way.