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ROI calculator
Understand your rental returns.
Make the costs visible.
Use this free calculator to sanity-check cash in, cashflow, yield, and downside. When a deal deserves real deal review, PropertyScout takes you further.
Inputs
Quick deal maths
Keep it simple: purchase, cash-in, rent, interest rate, and a few honest operating costs.
Operating assumptions
(adjust these to match your property)Other costs are intentionally one bucket here (insurance, service charge, ground rent, compliance, small repairs). The full app breaks this down further.
Important
This is an estimate. It excludes tax, financing fees, tenant-find fees, major refurb surprises, and unusual property costs. Use it to filter deals — not to “prove” a deal.
Output
First-pass deal summary
Enter the purchase price, deposit, monthly rent and any borrowing rate to see your scenario.
Total cash in
—
Deposit + refurb + fees
Net monthly cashflow
—
After interest + basic costs
ROI (net)
—
Annual net / cash in
Gross yield
—
Rent × 12 / purchase
Net yield (simple)
—
Annual net / purchase
Interest cover
—
Net income before interest / interest
Stress test (simple)
Rate up + rent down. Same voids/costs.
Stress monthly cashflow
—
Rate 2.00% · Rent £0
Stress ROI
—
Same cash-in
Decide what deserves a closer look
This calculator is a fast filter, not a forwardable memo. It helps you decide whether a listing deserves the next hour; the full app adds evidence, risk posture, offer logic, and Deal Pack output.
Tip: hit Load example to see realistic outputs immediately.