That's what's confusing me - I'm well under the threshold but the risk assessor wants to be confident I've no outstanding tax obligation to Revenue before they will proceed further with my application. I've applied / switched mortgages 5 times over the last few years and while never dealt with this bank before, never ran into this roadblock before with any of them. I have a screenshot of my income tax return for 2020 showing the declared rent a room income but it's not titled Form 11 / 12. I'll throw that to them anyway and see what happens. I've an unanswered enquiry with Revenue but thought I'd ask here also for advice.....
Edit: I exported my income tax return and in the PDF is a hard to read sub heading saying "form 12" - this might satisfy them, the screen shot from MyRevenue doesn't mention Form 11 or 12. Don't know about the screenshot but I've gone back to them to ask as without ROS I can't get that for them.....