"The state of Wyoming does not levy a personal or corporate income tax. Wyoming does not impose a tax on intangible assets such as bank accounts, stocks, or bonds, either. In addition, Wyoming does not assess any tax on retirement income earned and received from another state. Further, there is no legislative plan to implement any of these types of taxes."

Don't know if zero personal and corporate income tax is normal in the U.S A. as I am from Canada where we are taxed to death. Looks like a resource friendly area as much of Wyoming's revenue is from resources.