Spykey this is not my opinion or recommendation and actually a huge generality but I have had landlords in the past ask me to source non gst registered trades people and handy men.
The perception (although not always correct) is that they will save 10%.
In reality however I have compared...
If you are unregistered for gst you cannot charge it on invoices and you cannot claim it from subcontracts that have a gst component.
That means that all gst paid on any subcontract invoices needs to be considered as part of the cost.
Your invoices will not show the gst component from...