Property calculators
Stamp duty across all four nations, buy-to-let, moving costs and mortgages.
23 calculators · cited to gov.uk · 2026/27
Stamp duty calculator (all four nations) SDLT, Scottish LBTT and Welsh LTT in one tool, with first-time-buyer and second-home rules. Second-home stamp duty surcharge The extra stamp duty on a second home or buy-to-let, and when you can reclaim it. Buy-to-let yield & Section 24 Rental yield plus the Section 24 restriction that pushes a higher-rate landlord’s effective tax up. Deposit goal & Lifetime ISA How fast the 25% LISA bonus gets you to a deposit, with the withdrawal penalty warning. Remortgage break-even The month a new deal’s fee is recouped versus your current rate. Mortgage repayment calculator Monthly capital-and-interest payment from loan, rate and term, with total interest. Mortgage affordability calculator Calculate mortgage affordability calculator. Interest-only vs repayment Calculate interest-only vs repayment. Mortgage overpayment calculator Calculate mortgage overpayment calculator. Rent vs buy calculator Calculate rent vs buy calculator. Rental yield calculator Calculate rental yield calculator. First-time buyer stamp duty Calculate first-time buyer stamp duty. House deposit savings goal Calculate house deposit savings goal. Loan-to-value (LTV) calculator Calculate loan-to-value (ltv) calculator. Leasehold & ground rent estimator Calculate leasehold & ground rent estimator. Cost of moving house Calculate cost of moving house. Energy price cap calculator Your yearly and monthly bill at the Ofgem cap rates for October to December 2026, against the £1,723 typical figure. Shared ownership calculator Calculate shared ownership calculator. Buy-to-let mortgage calculator Calculate buy-to-let mortgage calculator. Offset mortgage calculator Calculate offset mortgage calculator. Overpay mortgage or invest Calculate overpay mortgage or invest. Non-resident stamp duty surcharge Calculate non-resident stamp duty surcharge. Help to Buy ISA bonus Calculate help to buy isa bonus.
Guides for property
Clear explanations of the rules behind these calculators, checked against gov.uk for 2026/27.
- Council tax bands explained: A to H
- Energy price cap from October 2026 explained
- First-time buyer deposit: how much you need
- Help to Buy ISA bonus: how to claim it
- ISA allowance 2026/27: limits and how they work
- Leasehold costs: ground rent and service charges
- Mortgage repayment costs by rate and term
- Overpay the mortgage or invest? The maths
- Rental income tax 2026/27 and Section 24
- Shared ownership: what it really costs a month
- Stamp duty rates 2026/27 explained
- Winter Fuel Payment 2026/27 explained