Sending of tax invoices and the application of a VAT percentage to them is a global system feature. This means that when you enter your VAT number SnapBill can only send out tax invoices on that specific SnapBill account. You cannot selectively choose which invoices are tax invoices and which aren't.

To get around this you can do one of the following things:

1. You can open a second SnapBill account and use it to issue invoices where you don't wish to charge VAT. This means not entering your VAT number or setting any VAT percentage. Invoices issued from this account will simply appear as 'invoices' and not 'tax invoices'.
2. You can issue tax invoices to all your clients from one single account and then apply a discount equivalent to the VAT percentage to the invoices of clients you do not wish to charge VAT to. The client invoice will still reflect as a tax invoice, but the discount will cancel out the percentage VAT charged on it.