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Home›Tools›Section 24 Calculator
🏠 Section 24 Impact Calculator

What is Section 24 Costing You?

See exactly how much Section 24 (the mortgage interest restriction) is adding to your tax bill — and how a limited company structure compares.

← All Tools Get Landlord Tax Advice →

🏠 Section 24 Calculator

⚠️ Section 24 applies to individual landlords only. Limited companies can still fully deduct mortgage interest.
⚠️ Estimates Only — Not Tax AdviceThis tool provides a simplified estimate for illustrative purposes only. It does not constitute tax advice and must not be relied upon for any financial or tax decisions. Individual circumstances, available reliefs and other factors will affect your actual position. Always seek professional advice. Book a Free Discovery Call →

Extra Tax Due to Section 24

£0
Estimated additional annual tax burden
Tax under old rules (pre-S24)
Tax under Section 24 (current)
20% Tax Credit Received
📊 Net Rental Profit Comparison

Personal Ownership

£0
After mortgage + tax

Limited Company

£0
After mortgage + corp tax
Corp tax:

📋 What Is Section 24?

Section 24 of the Finance Act 2015 restricts mortgage interest relief for individual landlords to a flat 20% tax credit — regardless of your income tax rate. Higher and additional rate taxpayers can no longer deduct their full mortgage interest, significantly increasing their tax bill. Limited companies are not affected and can still fully deduct mortgage interest as a business expense. Landlord tax advice →

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Section 24 — Next Steps

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Real Estate & Property Tax

Section 24 modelling, incorporation analysis and ongoing landlord compliance.

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Section 24 Deep-Dive

How the restriction works, what it costs higher-rate landlords and mitigation.

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Should You Incorporate?

Break-even analysis: when an incorporated structure beats Section 24.

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SDLT Calculator

Stamp duty cost on additional dwelling purchases.

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Specialisms

  • Residential Property Tax
  • Commercial Property Tax
  • Technology & Software
  • Prop Trading & LLPs
  • Crypto Tax
  • Personal Tax

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