If you are interested in knowing more about how the Help to Buy scheme works and are considering applying, there is some basic information you should know in order to get started. First of all, find out which house builders/developers are offering the scheme. If you are successful in your application, you can pay off the 20 per cent equity loan of the current value of your home at any time. If you still own the house after five years, you will start paying an annual fee of 1.75 per cent of the value of the equity loan. There is no interest to pay on the loan.