We have set up tax rates by zip code, and are connecting to UPS for real time shipping rates. On checkout, our order totals are only adding tax to the shipping cost, but not to our products as well.
However, the shipping and tax estimator are correctly charging the tax to the product.
The tax rates by zip code are all set to taxclassID 1, which matches the ID for the Goods tax class. All product variants are set to IsTaxable=1, and all products have a TaxClassID of 1.
What configuration am I missing to have the tax calculated on the product when the order is placed?