UK landlord calculators for the decisions in front of you.

Browse all landlord calculators

• Section 24 mortgage interest relief — See how finance costs affect your tax bill as an individual landlord.
• CGT on residential property — Estimate capital gains tax when you sell a UK residential property.
• Stamp Duty Land Tax — Work out SDLT for an additional property or a home purchase.
• Rental income tax — A simple view of taxable profit and your estimated income tax.
• IHT and property — Explore how property value sits inside an inheritance tax estimate.
• Corporation tax — Estimate corporation tax on property company profits.
• Rent-a-Room relief — Check whether the £7,500 tax-free threshold could apply.
• ATED — Get an early indication of annual tax on enveloped dwellings.
• Making Tax Digital readiness — A quick readiness check for quarterly digital reporting.
• Quarterly deadlines — See the reporting dates that matter for your property business.
• Three-line accounts — Turn your property figures into a clean three-line snapshot.
• Compliance score — A quick health check across safety, tenancy and admin essentials.
• HMO licensing — Find the common licensing triggers before you let by the room.
• EPC cost planner — Plan likely improvement costs against the minimum energy standard.
• Right to Rent — Understand the check route and timing for a new tenancy.
• Deposit protection deadline — Calculate the last day to protect a tenancy deposit and serve details.
• Section 8 notice periods — Map grounds and notice periods in plain English.
• Section 13 rent increase — Check the earliest date for a formal rent increase notice.
• Rental yield — Compare gross and net yield without losing the detail.
• Mortgage stress test — See what a higher rate could do to monthly cash flow.
• Void period impact — Put a cost on empty weeks and see the annual effect.
• Portfolio LTV — Understand leverage across several properties, not just one.
• BTL profitability — Bring rent, finance, running costs and tax into one view.
• Ownership structure comparison — Compare the after-tax return from individual, dual and company ownership.
• Joint ownership income split — See how rental profit may divide between two owners.
• Incorporation cost — Estimate the tax and transaction costs of moving a property into a company.

Use estimates as a starting point

Each tool is designed to make the moving parts visible. Check the current published guidance and get professional advice where your situation needs it.