Property

UK Rental Income Tax Calculator (Section 24, 2026/27).

Calculate tax on UK rental income for 2026/27, including Section 24 mortgage interest relief restrictions, allowable expenses and the impact of being a higher-rate taxpayer.

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Rental Income Tax Calculator from Countify

UK rental profit is taxed at your marginal Income Tax rate — 20%, 40% or 45% (or the Scottish equivalents) — on rent received less allowable expenses. Since Section 24, mortgage and finance interest is no longer deductible from rental income; instead you receive a basic-rate (20%) tax credit on the interest. This calculator applies Section 24 for 2026/27 and shows how it raises the effective rate for higher-rate landlords in particular.

Rental income — 2026/27

Property details

Interest only — not capital repayment
Agent fees, insurance, repairs
Used for tax band stacking

Since April 2020 (Section 24), landlords cannot deduct mortgage interest as an expense. Instead you receive a 20% tax credit — less beneficial if you pay higher-rate tax.

Tax on rental income

£1,500

After Section 24 mortgage interest credit

Effective rate

11.1%

Gross rent
£15,000
Net rental profit
£13,500
Mortgage interest credit
£1,200

Rental tax breakdown

  • Gross rent£15,000.00
  • Less expenses (£1,500.00)£1,500.00
  • Net rental profit£13,500.00
  • Tax before credit£2,700.00
  • Less S.24 credit (20% of £6,000.00 interest)£1,200.00
  • Tax payable£1,500.00

Source: gov.uk landlord tax guidance. Rates for the 2026/27 tax year.

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Questions

Frequently asked
questions.

Since April 2020, mortgage interest relief has been restricted to a 20% basic-rate tax credit. Higher-rate landlords pay tax on rental profit before mortgage interest, even where the interest cost exceeds the cash profit.

Common deductible costs include letting agent fees, landlord insurance, repairs and maintenance, ground rent and service charges, and accountancy fees. Capital improvements are not deductible against rental income.

Yes if your rental profit exceeds £1,000 per year, above the property income allowance, or if the income needs to be reported because you already complete a Self Assessment for another reason.

For higher-rate taxpayers with multiple properties, a limited company can shelter profit at 19% to 25% Corporation Tax rather than 40% to 45% Income Tax. However, SDLT and Capital Gains Tax on transfer must be weighed carefully.

Gross rental income up to £1,000 per year is tax-free with no need to report it. Above that, you can deduct either actual expenses or the allowance, but not both.

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