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    Section 21 abolished 1 May 2026. Check what this means for you.13 days to go Read the guide →

    PropertyKiln

    Section 24 Tax Impact Calculator

    Written by Scott Jones, founder of PropertyKiln.

    See exactly how much extra tax Section 24 costs you on your BTL portfolio — at every tax band.

    This calculator provides estimates based on current UK tax rates and regulations. It is not financial advice. Results depend on your individual circumstances. Consult a qualified accountant for advice specific to your situation.

    Interest only — not capital repayments.

    Letting agent fees, repairs, insurance, ground rent, etc.

    Salary, dividends, pensions — used to confirm your tax band.

    Uses 2025-26 tax rates. Section 24 restricts mortgage interest relief on individually-held BTL to a 20% basic-rate tax credit.

    In partnership with

    Founding Sponsor
    The Property Accountant

    Specialist accountants for UK landlords and property investors. Tax planning, incorporation advice, MTD-ready bookkeeping, and Self Assessment for property portfolios of every size.

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