Landlord calculator

Landlord income tax calculator

Estimate income tax on UK rental profit for landlords. Uses current UK tax bands and the 20% mortgage interest tax credit for residential landlords.

Total rent received before expenses

Insurance, maintenance, agent fees, etc. (not mortgage interest)

Used to calculate the 20% tax credit

Employment, pension, or other income in the tax year

Rental profit

£9,000

Mortgage interest tax credit (20%)

£800

Estimated income tax

£0

Uses UK income tax bands and the 20% mortgage interest tax credit for residential landlords. Personal allowance may be reduced if total income exceeds £100,000. This is an estimate only — your actual liability depends on your full tax position.

How this calculator works

Enter your annual rental income, allowable expenses, mortgage interest paid, and other taxable income. The calculator estimates your rental profit, applies UK income tax bands, and accounts for the mortgage interest tax credit.

Before you use this tool

Landlords pay income tax on rental profit — rental income minus allowable expenses. Mortgage interest is no longer fully deductible; instead, you receive a 20% tax credit on interest payments.


This calculator is for general information only and does not constitute legal, tax, or financial advice. Rules and rates can change — always check the latest guidance from HMRC, the Department for Communities, or a qualified adviser before acting.

Related guides

Learn more about the rules behind this calculator.

Frequently asked questions

Common questions about landlord income tax calculator.

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