I have a client that wants me to do Adwords Management Service. When I pay for Adwords clicks they are tax free as I am based in Australia and Google in Singapore if I am not mistaking. But when client needs to pay me I need to include tax as he is also in Australia. So markup looks like this: Adwords Spend + my management fee + Tax example: $1000 spent on adwords + 15% management fee + 10% tax = $1265 But I am only paying $1000 to google if I were to run my own campaign, the thing I am trying to say is that client this way is wasting 10% for tax. How do you people avoid this? If the client goes straight to google and does his own campaign he would be paying $1000 only, but if he goes thrum me I need to charge him 15% my management fee + 10% GST tax. Help.