I posted the comment below in another thread, but was suggested to create a thread as it may be helpful to other people with the same sort of question, especially people new to selling and buying/mortgages: Forgive me for jumping in, But I currently have a mortgage on a place since 2017, I have recently just started a new 5year fixed rate... however we were considering moving on in a couple of year, as we are both first time owners of this we haven't a clue how you go about selling and buying. Do we need to sell our current place for a profit to be able to put a deposit down on a new place or do we not even need a deposit. Also what fees are added on when you aren't first time buyers etc. Total novice questions I know. Thanks.