This will be under review, however, after this year's autumn statement because she is essentially making too much money.
Three years ago, the government forged a deal for Buckingham Palace that meant it would be shielded from any cuts to public funding. The deal also agreed that the monarchy would receive 15% of profits of the £9.9 billion ($15.1 billion) Crown Estate, and the amount the Queen would receive would never be less than the amount received in the previous year .... http://uk.businessinsider.com