So, we've got everything running with a standard Paypal system, and we went ahead and enabled "regional tax" in Amember and then created (and saved) a regional tax rule (in Amember) of our state paying 6.25%. And then we clicked "Apply tax" on the test product we were using. It doesn't seem to ever actually apply the tax. Is there a page showing in detail how to make it work right? "Tax" on the wiki just finds a page about viewing taxes paid, which is no help. "Tax" on the forum responds with the ever-helpful "you can't search for that". So... How do we get tax to work? EDIT: It appears that we need to force users to fill in their address with us, and that's the address used to calculate tax. Is that the only way? Because after that, they have to fill in their address with Paypal... that's pretty clunky.