Property Allowance Calculator 2026/27
Updated for the 2026/27tax year · Last updated
country: "UK" applicableCountries: ["UK"]
If you receive rental income from a property, a lodger, or a short-term let, the £1,000 property allowance could mean you owe nothing and don't need to file a tax return. This calculator shows whether your income falls within the exempt threshold, and — if not — whether claiming the allowance or your actual expenses produces a lower tax bill.
Enter your total gross rental receipts and your actual property expenses to see an instant side-by-side comparison. The result is your taxable property profit before income tax is applied.
Total rent received before any deductions — across all properties
Letting agent fees, repairs, insurance, council tax, mortgage interest
Enter your gross rental income above.
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How this calculator works
The property allowance mirrors the logic of the trading allowance, but applies specifically to income from UK land and property — rent, holiday lets, Airbnb, room letting, and similar receipts.
Below £1,000: Gross rental income of £1,000 or less is fully exempt. No tax, no National Insurance, no Self Assessment registration required.
Over £1,000 — two methods:
- Property allowance method: Deduct a flat £1,000 from gross income. No receipts or records required for the deduction itself (though you'll still need records to prove your gross income figure). Taxable profit = gross income − £1,000.
- Actual expenses method: Deduct all your genuine allowable property expenses. This requires proper records but can produce a much lower taxable profit — or a loss — when costs are high relative to income.
Mortgage interest note: Since April 2020, residential landlords cannot deduct mortgage interest as an expense. Instead, basic rate (20%) tax relief is given as a credit against the final tax bill. The calculator treats mortgage interest as an allowable expense for the purposes of comparing methods, but the actual tax relief mechanism differs — consult an accountant if mortgage interest is a significant part of your costs.
Choosing each year: You can switch between the allowance method and actual expenses from one tax year to the next. There is no irrevocable election. This means if your expenses drop in a particular year (e.g., no repairs), you can revert to the allowance.
What this calculator does not include: Income tax on the resulting profit. Once you know your taxable property profit, use the Income Tax Calculator to see the tax due, remembering that property income stacks on top of other income when determining which band applies.
Frequently asked questions
Related tools
- Trading Allowance CalculatorThe same £1,000 threshold for self-employment income.
- Income Tax CalculatorIncome tax on your property profit stacked above other income.
- Self Assessment EstimatorEstimate your full SA tax bill including property income.
- Allowable ExpensesWhich property expenses HMRC allows you to deduct.