I'm having a little trouble configuring compound taxes.
For sales in CA, I charge 7.25% sales tax
However, if the sales are within certain zip codes, I need to charge an additional 1.125% tax (8.375% total).
I've read the documentation and tried various permutations, but seem to only be able to get the 7.25% rate to work. For example, the 95133 postal code is specified and should be taxed at both the State tax and local tax, but I am only getting the state tax rate.
Can you tell me if I've set this up wrong? Here's a screenshot image: http://imm.io/Lxbz