All that you mentioned are recognized as religions. Can you name a cult that is treated that way by the tax man? How about this one: 

In 2014, Lev Tahor arrived in Guatemala from the Montreal area, the latest stop in a 20-year international journey. The ultra-conservative Jewish sect cries that it is escaping religious persecution. But to those left behind — in Israel, New York, and Canada — the group is a dangerous cult ducking accusations of brainwashing, abuse, and child marriage. 

Did they get tax exemption before they fled because the government wanted to put their children into foster care?