At Different Tax Rates
| Tax Band | Tax Rate | Tax on Profit | Net Income | Net/Month |
|---|---|---|---|---|
| Basic rate | 20% | £3,750 | £15,000 | £1,250 |
| Higher rate | 40% | £7,500 | £11,250 | £938 |
Allowable Expenses
You can deduct: mortgage interest (20% tax credit only), letting agent fees, insurance, repairs and maintenance, council tax (if you pay it), utility bills (if included in rent), and accountancy fees. You cannot deduct mortgage capital repayments or the cost of buying the property.
Understanding Rental Income Tax on £25,000
Rental income in the UK is added to your other income and taxed at your marginal rate. On rental income of £25,000/year, the tax you pay depends on your total income from all sources. The Property Allowance gives you £1,000 tax-free, but claiming this means you cannot deduct expenses. For most landlords with mortgaged properties, claiming actual expenses is more beneficial.
Allowable Expenses for Landlords
You can deduct many costs from your rental income before calculating tax. These include letting agent fees (10-15% of rent), insurance, maintenance and repairs, ground rent and service charges, accountancy fees, and advertising costs. Mortgage interest is handled differently — you receive a 20% tax credit rather than deducting the interest from your income. This change (phased in from 2017-2020) particularly affects higher-rate taxpayers.
Tax Reporting and Payment
Rental income must be reported through self-assessment. If your total income (employment plus rental) exceeds £100,000, your Personal Allowance begins to taper. This can create a particularly heavy tax burden for landlords with significant employment income. Making Tax Digital for income tax will require landlords to report quarterly from April 2026 (for those with income above £50,000). See rental income calculator for your estimated tax bill.