"if it were me" i'd keep schtum. You're in order with revenue and that's the main thing. Let boi sing for it i say. The banks are as reponsible for this mess as anyone so i wouldn't be bending over backwards to pay them even more interest than you currently do ;-) i believe it's fair to say there are probably thousands of people in your shoes who have not told the bank and in reality there's no way for the bank to find out. You may not be entitled to trs for a whole host of reasons so just because revenue will have told your bank to stop trs they won't tell them the reason ;-) the bank needs you to disclose the info. More importantly, make sure your insurance company knows it's a rental if they don't already!