That situation has never really affected me - but then the most expensive thing I&#x27;ve resold is my Macbook.<p>But when I&#x27;m reselling something, I&#x27;m looking to capture as much as my cost (how much I paid for it) as possible, including the GST. You could even consider this that I&#x27;m just a middleman who is passing on the GST to the &#x27;end consumer&#x27;.