Members of the FLDS really don't like to pay taxes. They don't readily cooperate with the government, or acknowledge its authority. FLDS children are taught that Warren Jeffs is president of the United States. They will take financial support from illicit government forces, though, as we recently saw with the food stamp case, which ended in generous plea deals and the possible rapture of Lyle Jeffs. Their pattern of tax evasion and collecting millions in benefits is part of a "bleeding the beast" philosophy.
FLDS may be waging a slow war of attrition against the government, but it's one they appear to be losing. That sword cuts both ways. In fact, their lack of cooperation with federal and state government can mean that they're cutting off their noses to spite their collective face. Secular forces are gradually eating up their land and property wealth and it's their own refusal to cooperate with these forces, which in many cases are trying to help them, that could cost them everything.
Case in point, Short Creek, the FLDS stronghold made up of Hilldale, UT, and Colorado City, AZ, is currently seeing an exodus of FLDS faithful. They would rather leave their homes than sign agreements and pay their property taxes.
"The Crick" is managed through a trust called the UEP (United Effort Plan). Originally set up by Warren Jeffs, the UEP was seized by the State of Utah, which argued that it was being egregiously mismanaged. Among the problems, those who were excommunicated were made homeless. As a state run trust, the UEP no longer applies a religious test, and some FLDS "apostates" have been able to reclaim homes in their old community, alongside those who remain devoted to "Prophet" Warren Jeffs. But FLDS members are in arrears.