HorizonUK Tax Solutions

Free tool

UK Rental Income Tax Calculator

Estimate the tax on your UK rental profit for 2026/27, including the mortgage-interest restriction that catches so many landlords out, and see what you actually keep.

Repairs, letting-agent and management fees, insurance, ground rent and service charges. Not mortgage interest.

Entered separately: it is not deducted from profit, but gives a 20% tax reduction.

Employment, pension or other income. Decides the tax band your rental profit falls into.

2026/27, rest-of-UK rates. Assumes you receive the full personal allowance (most landlords, including most non-residents, do). Indicative only.

Estimated tax on your rental income

£2,746

leaving £6,254 in your pocket after expenses, interest and tax

Rent received
£18,000
Less allowable expenses
- £3,000
Taxable rental profit
£15,000
Income tax on profit
£3,946
Less mortgage-interest reduction (20%)
- £1,200
Tax due
£2,746
Since 2020, mortgage interest is not deducted from profit. Higher-rate landlords feel this most, because relief is fixed at 20%.

Email me my full breakdown + what it means for me

We'll send your result, the reasoning, and a short note on the next steps for your situation. No obligation.

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How rental income is taxed

Your taxable rental profit is the rent you receive less your allowable running costs: repairs, letting-agent fees, insurance, ground rent and similar. That profit is added to your other income and taxed at your marginal rate (20%, 40% or 45%).

Mortgage interest is treated differently. Since April 2020 you cannot deduct it from your profit. Instead you get a tax reduction worth 20% of the interest, which is why higher-rate landlords now pay noticeably more than they used to. If you live abroad, your rent stays within UK tax under the Non-Resident Landlord Scheme, and most non-residents still keep the personal allowance.

We handle landlord tax returns

From registering under the Non-Resident Landlord Scheme to filing your Self Assessment and claiming every relief, we take care of it on a fixed fee. Book a free clarity call.

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