As a free trade zone, the members in the European Union are free to import and export between the member states and this is a huge benefit to the businesses because they can become more profitable by reducing the production cost. While the ageing population seem to become the Britain’s problem, the free immigration between the European Union members is one of the solution that help the Britain overcomes this problem. Moreover, tax-free is a significant benefit of Britain which very attractive for the investor. After carefully considered the result in economic, it seems to me that belonging under the European Union flag with another 28 countries will provide the Britain more privileges.