taxationuk wrote:Firstly if the Business rents from you both personally, you will be liable to tax on the rental income.
As the property would be owned personally no deductions would be allowable for interest payments on the mortgage, unless you has two seperate agreements for the purchase of the flat and the business premises.
Perhaps you would be so kind as to explain to me exactly why you consider that s34(2) ITTOIA 2005 (as applied by s272 ibid) does not apply to this situation.
When you have finished, please would you also explain your technical position here. http://www.taxationweb.co.uk/forum/tied-house-and-cgt-t35947-10.html
OP. I think so long as your wife is contributing to the costs of the mortgage to the extent they relate to the borrowings for the dance studio element, then she should be able to obtain a tax deduction. I don't think there is any need for charging rent or otherwise complicating matters.
There may be some debate as to the exact quantum of deductible expense. e.g. flat worth 100k, studio worth 50k. Mortgage is 75k, i.e. 50%. Probably the better argument is that one third of interest costs (50k/150k) are deductible; a more aggressive approach would be that interest costs on 50k of debt (i.e. the incremental on top of your flat) is deductible.