The essay traces the legal and political evolution of taxation in England from early customary levies under Anglo-Saxon rule through medieval feudal exactions to the gradual transfer of taxing authority to representative assemblies. It examines royal revenues, extraordinary contributions, scutage, tallage, customs on wool, and assessments by juries and councils; key constitutional moments such as baronial resistance, Magna Carta, the Model Parliament, and confirmations limiting arbitrary impositions are analyzed. Focus centers on who held authority to tax, how grants and consent developed into the Commons' control over money, and the institutional mechanisms and precedents that shaped parliamentary taxation up to the establishment of the Commons' primacy in initiating revenue measures.