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Phone: (UK) +44 (0)203 405 2320
Address: UK: Collingham House, 10-12 Gladstone road, Wimbledon, London, SW19 1QT

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Interest on Buy-To-Let Mortgages

From 6 April 2017 full interest expenses can no longer be deducted from rental income, a Tax Reduction Amount must be calculated instead. The tax liability of a basic-rate taxpayer could remain unchanged, if the new profit calculation does not push the basic-rate taxpayer into a higher tax band.

This does not apply to:

  • UK resident companies
  • Non-UK resident companies
  • Landlords of Furnished Holiday Lettings

Points to note:

  • Consider the implication to High income child benefit charge (HICBC) if dis allowance of interest expense pushes taxable income over the £50k threshold.
  • The Tax Reduction Amount cannot create a tax refund.
  • Any ‘unused’ interest expenses are carried forward, and added to future interest expenses.


Using the 2016/17 rates throughout, for simplicity. And assuming only one property business.

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