Hi Rachel
Just to clarify....so the house value when she bought it was more than the loan she has now taken out? If so, then yes as far as I understand it, although the relief she gets is changing so it will be on a reducing basis over the next four years, from 2017 as the marginal relief will disappear. Worth a read up, as a few changes affecting the buy to let market in the last finance act have meant a few a scurrying round to try to find a different way round such changes.
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Joanne
Winner of Bookkeeper of the Year 2015, 2016 & 2017
Thoughts are my own/not to be regarded as official advice,which should be sought from a suitably qualified Accountant.
You should check out answers with reference to the legal position
Surely the reason for which she has now taken out the mortgage, given that the property has been rented for sometime, has nothing to do with the letting business and so the interest would not be allowable?
Assuming of course that the mortgage wasn't to redo the kitchen etc.
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Jenny
Responses are my opinion based on the information provided. All information should be thoroughly checked before being relied on.