I read IRD's website / PDF. The depreciation life of technology goods is 3yrs for computers, laptops, tablets, smartphones. One could be a office worker on a contractor agreement or a mum and dad who just have a rental that they rent out or they may run the local fruit shop. 3yrs mean the device would be pretty aged right esp for a handphone? If one got it for $500 or less they don't need to depreciate they can simply expense it but one would assume it ought to last 3yrs also right unless they sell it at market price and get another one.
Also what happens with second hand goods? If one gets a 4yr old computer. It is low enough you can expense it but does one use that for 1yr or 3yr?
Thoughts?