I am currently with Ulster Bank fixed until 2023 at 2.99%, however I want to take advantage of the cash back offers from other banks. Ulster Bank have told me that it will cost €2758 to break the terms of the mortgage. However they will allow me to switch to a variable rate mortgage of 3.6% and it won't cost me anything to switch. My question is if I was to switch to the variable rate for a month or two could I then switch banks without a breakage cost as the mortgage would not be fixed anymore? Does anyone have experience of doing this?