I understand that HMRC changed their guidance last year to say that interest on increased borrowing for an unincorporated letting business would not be allowed where the money was to be withdrawn by the taxpayer (i.e. for personal use rather than say to do work to the property being let). There was an article on this site regarding it last year:
The consensus here was that it should be allowable as the guidance was just that - guidance and not the law.
Does anybody know if there have been any updates on this - e.g. results of FTT?