Currently we have an issue with WP Commerce being able to process taxes on orders. We only use taxes in one state, and whenever a user uses the shipping calculator, the tax is applied to the final price.
However, once the user makes the purchase, the amount that is taken includes the price of the products and shipping, but not the tax.
We use authorize 2.0 as our main payment gateway, I don't know if that has anything to do with the problem.
I'm not sure if this is a WP-Commerce issue or an Authorize.net issue. Any help would be greatly appreciated.