supplier: gst registered tradie, small job, no written contract required by law
option for customer or tradie to supply materials
if tradie supplies materials, then 10% added to material cost
(Both parties got some materials) situation: tradie trying to add 10% to total invoice that includes gst and that works out to 21% markup on material cost. Tradie doesn't seem to get that they make their 10% by adding 10% to material cost AND they still have the gst component as a credit.
i can't see how you can charge a markup on anything but an expense. adding a markup to a CREDIT seems wrong in accounting terms, ethically and perhaps legally? Comments?