This monograph looks at how tax is intertwined with constitutional law and the state in the UK. It looks at a variety of topics including tax devolution, scrutiny and reform of tax legislation, the protection of taxpayers and the domestic legal processing of international rules and problems. Tax Law, State-Building and the Constitution presents and interrogates five key claims. First, there is a clear overlap between the concerns of tax and constitutional lawyers. Secondly, the tax system is being deeply affected by the fast pace of constitutional change. Thirdly, decisions taken in the tax...