The more deposit you have, the less money you will need to borrow for a mortgage. There are many ways in which you can try and save for a deposit and then the next step is to go to a financial adviser and enquire about getting a mortgage. The most popular and best way to save for a deposit is to move in with your parents if at all possible, this will hopefully bring your outgoings from your salary down a lot and then you will be able to save quite a lot and faster than you would otherwise be able to. If you cannot move in with them and you are renting somewhere, it may be worth looking around and trying to find somewhere to rent that is less money and save the rest as well as making some minor changes which will all add up in the end and contribute towards your end goal and a higher deposit. Especially in the case of buy to let, the more you have to put in initially, the better, in fact you have to put in more than you would for a normal property purchase.