> but it isn't technically a property tax
That is the loophole they use. They add all kinds of fees into the property tax but don't classify them as taxes. Best I know, there is no limit to how many and how much. Twenty years ago my property tax was just a single line item, the property tax. Now it's up to 6-7 (don't have the bill in front of me to check exact count) line items.
So yes, your CA propery tax^H^H^Hfee bill can be way over 1%