This is my understanding - which part is not correct? "Historically, Crown Estate properties were administered by the reigning monarch to help fund the business of governing the country. However, in 1760, George III surrendered control over the Estate's revenues to the Treasury,[5] thus relieving him of the responsibility of paying for the costs of the civil service, defence costs, the national debt, and his own personal debts. In return, he received an annual grant known as the Civil List.
By tradition, each subsequent monarch agreed to this arrangement upon his or her accession. But since 1 April 2012, under the terms of the Sovereign Grant Act 2011 (SSG), the Civil List was abolished and the monarch has been provided with a stable source of revenue indexed to a percentage of the Crown Estate's annual net income (currently set at 25%).[18] This was intended to provide a long-term solution and remove the politically sensitive issue of Parliament having to debate the Civil List allowance every ten years. Subsequently, the Sovereign Grant Act allows for all future monarchs to simply extend these provisions for their reigns by Order in Council.[3] The act does not imply any legal change in the nature of the estate's ownership, but is simply a benchmark by which the sovereign grant is set as a grant by Parliament."