Tools and calculators

Free property calculators based on HMRC and industry data. All results are estimates for illustration only.

Stamp duty calculator SDLT for residential purchases including the 5% surcharge on additional properties. Rental yield calculator Gross and net yield for buy-to-let properties with running cost estimates. Capital gains tax calculator Estimate CGT on residential property sales at 2025/26 rates. BTL mortgage calculator Monthly repayments for interest-only and repayment buy-to-let mortgages.