Free calculator · 2026/27
Rental income tax calculator for landlords.
Estimate the income tax on your rental profit after expenses, with the 20% tax credit for mortgage interest and the option to use the £1,000 property allowance.
- Updated for 2026/27 rates
- Free, no sign-up
- Instant results
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Tax year
2026/27
Rates last reviewed November 2026
Open the calculator ↓Free · No sign-up · Estimates only
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How rental income is taxed
Rental profit is added to your other income and taxed at 20%, 40% or 45%. Mortgage interest is not deducted. Instead you get a 20% tax credit on the interest.
Property allowance
If your rental income is small you can use the £1,000 property allowance instead of claiming expenses, but then you cannot claim finance cost relief.
Worked example
See it with real numbers
With £24,000 rent, £4,000 expenses, £6,000 interest and £40,000 of other income, the extra tax on the rental profit is about £4,746.
ACCA · ICAEW · AATICAEW regulated, ACCA and AAT qualified team
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Landlord tax return
We prepare and file from £169 + VAT.
FAQs
Rental Income Tax Calculator: your questions answered
Short, straight answers. Still unsure? Call us on 020 3441 1258.
Letting agent fees, repairs, insurance, ground rent and similar costs. Not capital improvements.
As a 20% tax credit rather than a deduction.
31 January after the end of the tax year.
Yes, from £169 + VAT.
Let us handle the tax for you
Fixed fees, paid online. Call 020 3441 1258 or get your quote now.
Prices last reviewed November 2026. Cheap Accountants in London is a trading style of ACCOTAX London Ltd.