Hey there,
I have an US client that is selling online & need to know how we handle "Provincial / Regional Tax" - as this is different to "State Tax...
LA State Tax = 4%
Ouachita Parish Tax = 5.6%
The Ouachita Parish tax should only apply to sales that have originated from this region.
I am not sure how this is done - as it should be related to a Zipcode number range.
Add another tax - US - LA - Ouachita - and use that for the selection.
If you want it done by address automatically you can then write a javascript to select that tax using the entered zipcode.