I live here in California. I also frequently buy from Amazon, and they are now charging such state taxes. They do not seem to have a problem with figuring out the tax amount. And where you get all of those different tax rates is that there are indeed literally hundreds of cities and other governmental entities throughout this state that also add on their own taxes as well as the standard state sales tax. But, that is a problem with all the other states in the US as well!!
I live here in California. I also frequently buy from Amazon, and they are now charging such state taxes. They do not seem to have a problem with figuring out the tax amount. And where you get all of those different tax rates is that there are indeed literally hundreds of cities and other governmental entities throughout this state that also add on their own taxes as well as the standard state sales tax. But, that is a problem with all the other states in the US as well!!