Rich entrepreneurs can use an ING trust to save on income tax without leaving high-tax states.Ivan Rodriguez AlbaUber-rich business owners in high-tax states can save on income taxes without moving.Instead of selling their businesses outright, they put their stock in a trust in a tax-haven state.Incomplete non-grantor trusts come with strings attached but can pay off nicely.Top earners continue to flock to states with little to no income tax such as Florida and Texas.