If you would like to add sales tax / VAT as an additional charge for your ticket buyers then simply follow these steps.
Please note: If the tax is already included in your ticket price then you don't need to do this.
From your Ticket Tailor control panel:
Click Settings from the main navigation.
From the left hand side click on Sales tax.
Enter the sales tax percentage amount.
Enter the label by which you want to describe your sales tax (e.g. in the the UK you would put VAT).
Now all orders will have sales tax added on during the checkout process.
Please note: Sales tax does not get added to donation amounts.