HM Revenue & Customs

1046 - Capital allowances (but not for furnished residential lettings)

You cannot deduct the cost of buying, altering, building, installing or improving fixed assets. Nor can you claim depreciation or losses when such assets are disposed of. Instead you can claim capital allowances, which reduce your profits (or increase a loss).

You cannot claim capital allowances for any furnished residential lettings (please see the field level help for '10% wear and tear allowance (for furnished residential lettings only)').