After April 2025, holiday let landlords can still deduct allowable revenue expenses from rental income, including letting agent fees, advertising costs, utility bills, insurance, cleaning and maintenance costs, and a basic rate tax credit for mortgage interest (at 20%). The replacement of domestic items relief allows a deduction for replacing furnishings such as sofas, beds, and white goods. Capital allowances on plant and machinery are no longer available for new expenditure. A tax adviser can help identify all deductions available for your specific situation.