The taxes your business pays are based on where it is physically located and where it conducts business, not where it is incorporated: e.g. if your online business is located out of your home in HI (that's where your office is; where most work is done), you will pay HI taxes. The place you incorporate does not affect liability. To have WY taxes, you'd need to locate in WY; having seen both HI and WY, moving from HI to WY might be too high a price to pay.