I'm no expert but:

I think that the fact that you have a large mortgage is irrelevant as the rent is still taxable income.

You should still be entitled to the personal allowance, the amount of money that you are allowed to earn before you pay tax, which I think is ?8k or so.

Therefore I think you should only pay tax on your rental income once it goes over ?8k.

I could be wrong though!

Posted By: Curnster, Dec 5, 07:28:41