cont'd from previous thread marked as resolved:
going back to this same topic about the tax. it is not bullet proof in 1.11.1.
The problem is that again in california, the law is that the tax should be applied to the shipping state.
As mentioned, the current set up applies tax to the billing state, but it should be done to the shipping state (at least in california). As mentioned before as well, I think there should be an option on the tax page to apply tax depending on the billing or shipping address. let us choose, as each place seems to have different tax law.
I have also sent this same message to Amadeusz.