Sales tax at the Register is calculated automatically based on which items in the cart are taxable. Here's what determines it and where it shows up.

Each item is marked Taxable or non-taxable when it's created or edited. Only taxable items contribute to the tax total on a sale.

The Order Summary lists charges in this order: Subtotal, Discount (if applied), Service Charges (if applied), Tax, then Total. The Tax line reflects the calculated tax on the taxable portion of the sale after any discounts and service charges have been applied.