How this mortgage calculator works
This calculator estimates monthly repayments using a standard amortisation formula for repayment mortgages, or monthly interest for interest-only mortgages. It also shows total interest over the full term and calculates loan-to-value.
LTV means loan-to-value. A mortgage of £240,000 on a property worth £300,000 gives an 80% LTV. Lower LTVs can often unlock better mortgage products, while higher LTVs can mean fewer products and higher costs.
For Chinese users, this page can also be used as an 英国房贷计算器, 英国按揭计算器, 英国贷款价值比计算器 and 英国印花税计算器.
SDLT estimate included
The SDLT estimate is for residential property purchases in England and Northern Ireland. It supports main residence purchases, first-time buyer relief, additional property rates and the optional 2% non-UK resident surcharge.
Why test higher rates?
Rate stress testing gives a quick view of what your budget might look like if your fixed deal ends or rates move higher. It is not a lender affordability check, but it is useful for planning.
What is the difference between repayment and interest-only?
Repayment mortgages gradually pay down the balance as well as interest. Interest-only mortgages estimate the monthly interest charge, but the original loan balance still needs repaying separately at the end.
Does this include lender fees?
No. It does not include arrangement fees, valuation fees, broker fees, legal costs, insurance or early repayment charges.
Is the SDLT estimate valid for Scotland or Wales?
No. Scotland and Wales use different property taxes. This page only estimates residential SDLT for England and Northern Ireland.