Yes but not how you would think.

finance costs—including mortgage interest, arrangement fees, and mortgage adviser fees—cannot be deducted directly. Instead, you can claim a 20% tax credit on these costs, which reduces your overall tax liability rather than your taxable income.

Meaning for every £100 of finance costs, you reduce your tax by £20.

Unless you are on about a LTD Company SPV? Then its a full deduction.