You must know what HST is
The sales tax for Ontario is obsolete
The prov has switched from charging GST and PST to just charging HST
This does not affect any other provice
Look at these two forms.
https://www.canlaw.com/secure/forms/orderform.htm
https://www.canlaw.com/secure/forms/orderformdl.htm
When an Ontario address is specified the form automatically adds the old taxes, GST and PST to the order
This must be changed so that ONLY HST 13% is added to any and all orders showing an Ontario address
This should be very simple to do.
