He was educated Stonyhurst College and Lincoln College, Oxford. He is a professional solicitor and runs a law firm William Cash & Co. Apart from this he is a member of the wealthy Cash (nametag manufacturers) family. His daughter Laetitia is prominent in society circles.
He entered Parliament in 1984, when he became MP for Stafford in a by-election; since 1997 he has been MP for Stone, Staffordshire. He has served on various committees. He is known as a strong eurosceptic and at one point was ringleader of a rebellion over the Maastricht treaty that almost brought down John Major's government. He was described by Ken Clarke as the most euro-sceptic Member of Parliament. He is president of the euro-sceptic European Foundation which was created during the Maastricht Rebellion, the funding for which he organised.
