Free calculators

Investment tools

Four essential calculators for UK property investors, all updated for the 2025/26 tax year. Results are estimates only; always seek professional advice.

Rental Yield Calculator
Calculate gross and net rental yield on a cash-purchased investment property. Yield is expressed as a percentage of the full purchase price, your true return on capital deployed.

Include insurance, agent fees, maintenance, voids etc. Exclude mortgage costs for cash purchases.

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Enter your property details on the left to see your yield, income breakdown, and how your investment stacks up.

Strategy comparison

Compare all three strategies on the same property

Fill in the shared details and strategy-specific assumptions, then run the comparison to see which approach wins on each metric.

Shared inputs

Used for BTL cash-on-cash calculation.

Use the mortgage calculator above.

Cash purchase
Buy-to-let
Short-term let
Mortgage Repayment Calculator
Estimate monthly repayments on a buy-to-let or residential mortgage. Figures are indicative, speak to a broker for a personalised quote.

LTV: ,

Most BTL mortgages are interest-only. Residential mortgages are typically repayment.

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Enter your property value, deposit, rate and term to see your monthly repayments, total interest payable, and loan-to-value breakdown.

Stamp Duty Calculator
Calculate SDLT for England & Northern Ireland. Updated for April 2025 thresholds and the 5% additional property surcharge.

Non-UK residents pay an additional 2% surcharge on all bands.

England & Northern Ireland only. Scotland uses LBTT (with 8% Additional Dwelling Supplement) and Wales uses LTT (with 5% higher rate surcharge). Consult a solicitor for Scottish or Welsh purchases.
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Enter your purchase price and buyer type to see a full band-by-band stamp duty breakdown, including any applicable surcharges.

Capital Gains Tax Calculator
Estimate CGT on the disposal of a UK investment property. Updated for 2025/26, 18% basic rate, 24% higher rate, £3,000 annual exemption.

Structural improvements only (e.g. extensions, conversions), not repairs or maintenance.

60-day reporting rule: UK residents must report and pay CGT on residential property sales within 60 days of completion via HMRC's CGT property service. Late filing attracts automatic penalties.
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Enter your purchase and sale details to see your capital gain, applicable CGT rate, and estimated tax liability for 2025/26.