Here's the place to read up on legal information, tax information, and any other topic that seems to fit.
In the United States, each state will often have its own unique twist on these issues. These links are just a starting point, please make sure to research the unique laws of your particular state.
Being an American, I am not familiar with many of the legal issues faced by Asatru/Neo-Pagan citizens of other countries. Please consider yourself free to submit links of interest.