Calculators
Each one is built to the same standards lenders and brokers actually use, so the figures you get are the figures that matter when you apply. Results update as you type, with the working shown. No sign up, nothing stored on a server.
See the maximum buy to let mortgage you could borrow, based on the rent and the lender's interest cover ratio and stress rate. If a loan fails the test, it also tells you the rent you would need to make it work.
Open the affordability calculator →Work out the full stamp duty bill on a buy to let or second property across England and Northern Ireland (SDLT), Scotland (LBTT) and Wales (LTT), including the additional property surcharge, with the band by band breakdown.
Open the stamp duty calculator →See the real return on a rental after every cost, not just the rent minus the mortgage. Cash invested, monthly cash flow, and annual return on your money.
Open the profit and ROI calculator →Compare two or three mortgage products side by side on true total cost, including product fees, valuation costs and cashback, so you can see which is actually cheapest rather than which has the lowest rate.
Open the mortgage comparison →Work out the net loan, costs and fees on a bridging facility, and understand the gap between the gross and net loan amount.
Open the bridging calculator →Important: BTL Insight provides information and tools, not financial advice. The results are estimates to help you understand your options. They do not account for your full circumstances and are not a recommendation. Always confirm the figures with a qualified mortgage adviser and the lender before you make a decision.