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Analyse Any Deal. In Seconds.
The UK investor's deal analysis engine — gross yield, net yield, ROI, cash-on-cash return, BRRR, flip profit, and stress testing in one place.
Try Deal Analyser — FreeFull Deal Analysis
Stop switching between spreadsheets. Propty calculates yield, ROI, cashflow, and total return in real time — with SDLT, mortgage costs, and management fees baked in. See your true position at a glance.
Scenario Stress Testing
Every deal looks good at today's rates. Propty lets you stress test against rate rises, void periods, rent drops, and unexpected costs — so you know exactly where your deal breaks.
A gross yield above 6% is generally considered strong for a standard BTL. In the North of England, yields of 7-10% are achievable. In London and the South East, 4-5% is more typical but capital growth tends to be higher. Our Deal Analyser calculates both gross and net yield so you can compare like-for-like.
Gross yield is annual rent divided by purchase price — it ignores all costs. Net yield deducts mortgage payments, management fees, insurance, maintenance, voids, and other expenses. A property with 7% gross yield can easily have a 2% net yield once all costs are factored in. The Deal Analyser calculates both automatically.
ROI measures your annual profit as a percentage of the cash you actually invested (deposit + stamp duty + refurb + legals). If you put in £60,000 cash and make £5,400/year net profit, your ROI is 9%. Our calculator includes all acquisition costs for an accurate figure.
Cash-on-cash return is the annual net cash flow divided by your total cash invested. It measures the percentage return on the money you actually put in, not the property value. It's the most useful metric for comparing leveraged property deals because it accounts for how much of your own money is at work.
BRRR stands for Buy, Refurbish, Refinance, Rent. You buy below market value, renovate to increase value, refinance at the higher valuation to pull your cash out, then rent for income. Our analyser models the full BRRR cycle including refinance LTV and cash left in the deal.
Flip profit = Sale price - Purchase price - Stamp duty - Renovation costs - Finance costs (bridging interest + fees) - Selling costs (agent + legals) - Capital Gains Tax. The Deal Analyser calculates all of these automatically, including the 5% SDLT surcharge and CGT at your tax rate.
Yes. SDLT (or LBTT/LTT for Scotland and Wales) is calculated automatically based on whether it's your first property, an additional property, or a company purchase. It's included in your total acquisition cost and affects your ROI calculation.
Most lenders stress test at 5.5% for affordability. For your own analysis, test at your current rate plus 2% to see if the deal survives a rate rise. The Deal Analyser lets you adjust the interest rate in real time so you can see exactly where your deal breaks even.
Yes. The Deal Analyser lets you toggle between BTL, BRRR, and flip modes on the same property. This shows you which strategy delivers the best return for a given purchase price, renovation cost, and market conditions.
Yes. The Deal Analyser is completely free to use with no signup required. Calculate yield, ROI, cash flow, and stress test any deal instantly.