I live in a state where I have to charge different tax rates for different types of items. In the online store, I am able to add tax (great!) but it applies the same tax to ALL products purchased. I have to work around this by adjusting prices in the store, and then adjusting prices/tax on the invoice post-sale.

For example, I need to charge 4% food tax, and 8% general merchandise tax. Since the majority of my items for sale are food, I have the store set up to add the 4% tax. For items that are not food, I have to adjust the price so the price with tax is correct. Say I want to sell a shirt for $35.00. I need to list it in the store for $36.35 so when 4% tax is added the total is $37.80, which is what the price would be if the $35.00 was charged 8% tax. When the shirt is purchased, I have to go into the invoice and adjust the price and the tax rate. The total ends up the same, but it makes my bookkeeping extra complicated with plenty of room for error.

I would like to be able to specify the tax to charge for each individual product (the same way you can do it manually in an invoice).