Thanks Cara you have been a great help
Just to confirm the first question
It is the money I am paying to the overseas relevant government not the NZ one
For example I just sold a item to a guy in Belfast ( before I had added any sales tax on my site) & he received a note from UK customs saying they were holding the item until he paid the VAT ( sales tax) on it.I advised him this might happen but I would rather avoid this in future
So I have to transfer the $ ( sales tax) to the relevant government manually ( set up an account etc ) which I don’t mind doing & then fill out the invoice as sales tax paid ? Thanks again Chris
Sorry I did not include that I am using Woocommerce plug in