House Flipping Calculator

House Flipping Profit Calculator

Results Summary

Total Investment:
Total Expenses:
Estimated Net Profit:
Return on Investment (ROI):

The 70% Rule Analysis:
According to the 70% rule, you should pay no more than for this property.

How to Use the House Flipping Calculator for Maximum Profit

Successful real estate investing isn't about luck; it's about the math. A house flipping calculator helps you determine if a potential "fix and flip" project is a viable investment or a financial trap. By accurately projecting your After Repair Value (ARV) and accounting for every expense, you can ensure your margins remain healthy throughout the renovation process.

Key Metrics Explained

  • After Repair Value (ARV): This is the estimated market value of the property after all renovations are complete. It is based on recent comparable sales (comps) in the area.
  • Repair Costs: This includes materials, labor, permits, and a contingency fund (usually 10-15%) for unexpected issues like mold or structural damage.
  • Holding Costs: Often overlooked, these are the costs of owning the property while you work on it. This includes property taxes, insurance, utilities, and interest on any hard money loans.
  • Selling Costs: When you exit the deal, you'll likely pay 5-6% in realtor commissions plus closing costs and title insurance.

The 70% Rule in Real Estate

Professional flippers often use the 70% Rule as a quick screening tool. The rule states that an investor should pay no more than 70% of the ARV, minus the cost of repairs. For example, if a house's ARV is $300,000 and it needs $50,000 in repairs, the Maximum Allowable Offer (MAO) would be ($300,000 * 0.70) – $50,000 = $160,000.

Flipping Example

Imagine you find a distressed property for $200,000. You estimate $50,000 in repairs and expect the project to take 6 months. Your monthly holding costs (loan interest, taxes, utilities) are $1,500. If the ARV is $350,000 and selling costs are 6%, your calculation would look like this:

  • Total Repairs: $50,000
  • Total Holding: $1,500 x 6 = $9,000
  • Selling Costs: $350,000 x 0.06 = $21,000
  • Total Expenses: $80,000
  • Net Profit: $350,000 – $200,000 – $80,000 = $70,000

In this scenario, your ROI would be approximately 28% based on the total capital deployed.

function calculateFlip() { var purchasePrice = parseFloat(document.getElementById('purchasePrice').value); var arv = parseFloat(document.getElementById('arv').value); var repairCosts = parseFloat(document.getElementById('repairCosts').value); var holdingMonthly = parseFloat(document.getElementById('holdingMonthly').value); var months = parseFloat(document.getElementById('months').value); var sellingCostsPct = parseFloat(document.getElementById('sellingCostsPct').value); if (isNaN(purchasePrice) || isNaN(arv) || isNaN(repairCosts)) { alert("Please enter the primary property values."); return; } // Default 0 for optional fields if empty holdingMonthly = isNaN(holdingMonthly) ? 0 : holdingMonthly; months = isNaN(months) ? 0 : months; sellingCostsPct = isNaN(sellingCostsPct) ? 0 : sellingCostsPct; // Calculations var totalHolding = holdingMonthly * months; var sellingCostsTotal = (sellingCostsPct / 100) * arv; var totalExpenses = repairCosts + totalHolding + sellingCostsTotal; var totalInvestment = purchasePrice + repairCosts + totalHolding; var netProfit = arv – purchasePrice – totalExpenses; var roi = (netProfit / totalInvestment) * 100; // 70% Rule Calculation (MAO) var mao = (arv * 0.70) – repairCosts; // Formatting var formatter = new Intl.NumberFormat('en-US', { style: 'currency', currency: 'USD', minimumFractionDigits: 0, maximumFractionDigits: 0 }); document.getElementById('resTotalInvestment').innerText = formatter.format(totalInvestment); document.getElementById('resTotalExpenses').innerText = formatter.format(totalExpenses); document.getElementById('resNetProfit').innerText = formatter.format(netProfit); document.getElementById('resROI').innerText = roi.toFixed(2) + "%"; document.getElementById('resMAO').innerText = formatter.format(mao); document.getElementById('flipResult').style.display = 'block'; }

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