Underwriting Engine

Fix & Flip Calculator

A complete suite of purpose-built flip calculators on a single screen — ARV, Purchase & Closing, Scope of Work down to materials and labor, Short-Term Financing, Holding Costs, Disposition, Contingency, and the Profit Waterfall. Every input is its own calculator. Every output is calculated live from your inputs. Build a flip deal at line-item resolution and walk into the closing table with a clear, itemized view of every dollar — what goes in, what comes out, and when. Maximum confidence about a deal's viability in minimum time.

Fix & Flip Calculator

How it works

01

Enter the property details and start filling in every input the deal requires — address, strategy, comps, purchase, rehab, financing terms, holding period, disposition.

02

Run the numbers through REDA's built-in calculators — Purchase + Closing itemized, SOW built line-by-line with split labor and material, Short-Term Financing with LTC and points, Holding Costs across the full holding period, Disposition itemized, Contingency reserved.

03

The Profit Waterfall recalculates the second you change any single input across any calculator: total project cost, net profit, ROI, cash-on-cash, and cash-to-close — every dollar traced, every change reflected instantly.

What's inside

  • Purchase & Closing Cost Calculator — title, escrow, recording, transfer tax, attorney, wholesale fee — every line itemized so you know exactly what you're paying at closing
  • Scope of Work Calculator — 8 standard rehab sections, every line split into labor and material, every screw and fixture accounted for
  • Short-Term Financing Calculator — LTC %, points, broker fees, hard-money rate, monthly interest accruing across the full holding period — the real cost of borrowed money
  • Holding Cost Calculator — property tax, insurance, utilities, lawn, HOA — normalized to monthly across the exact holding period you set
  • Disposition Calculator — realtor commission, seller concessions, closing, staging, transfer tax — simple % mode for speed, or full itemization for more detail
  • Contingency Calculator — set as % of rehab or fixed dollar amount, with live actuals override once the project starts
  • Profit Waterfall Calculator — ARV minus total project cost minus disposition equals net profit; ROI and cash-on-cash flow from there
  • Cash-to-Close Calculator — exactly how much you wire on day one, factoring loan proceeds against purchase, closing, and points
  • Live recalculation across every calculator — change one line, every downstream number updates instantly; no Excel refresh, no broken cells, no "let me redo the model"

Ready to underwrite faster?

Run your next deal through REDA's full underwriting suite. No credit card. 7-day trial. US deals only.