In this article, we will first look at what sales taxes are and discuss some important terms that relate to them. Then, we'll look at how we set up sales tax in QuickBooks Online and get our customers and items using sales tax. We'll also look into filing sales taxes and getting reports about sales taxes. Edit Sales tax rate in QuickBooks Online/Desktop In this sort of situation, you need to obtain a certificate from the government that says that the purchase is not the end product so you can avoid paying sales tax.