Maximum Offer Calculator

Work out the most you can pay for a property to flip and still hit your profit target — from the after-refurb value, your refurb budget, and your costs.

Maximum offer
£160,000
to hit a 20% profit on a £300,000 sale
After-refurb value (GDV)
£300,000
Less refurb budget
− £50,000
Less target profit (20%)
− £60,000
Less costs (10%)
− £30,000
Maximum offer
£160,000
Cash in (offer + refurb + costs)
£240,000
Return on cash in
25.0%

A quick guide, not advice. The costs % is a buffer covering SDLT, legals, finance interest and selling fees — for an accurate stamp-duty figure use the Stamp Duty calculator. Always verify comparables and get real quotes before you offer.

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Refurbly takes a deal from “does it stack up?” through the build to sale — feasibility, refurb budget vs actuals, contractors and a spend ceiling, all in one place.

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Refurbly — renovation-management software for homeowners running their own build.

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