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Section 24 Mortgage Interest Calculator

The finance-cost restriction, worked out properly.

Applies the Section 24 restriction — finance costs relieved as a 20% tax reducer rather than deducted from profit — including the cap and the amount carried forward when relief is restricted.

What's in it

  • 20% tax reducer calculation
  • Restriction cap logic
  • Unrelieved finance costs carried forward

Formats

Microsoft Excel

An .xlsx file you download and keep. Works in Excel 2016 and later, and in Numbers and LibreOffice.

Google Sheets

Import the .xlsx into Google Sheets — a native Sheets version of this one is on the way.

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