70% Rule Calculator for Flippers: Maximize Your Investment Profits
Are you a real estate investor or house flipper looking to make smarter, more profitable deals? The 70% Rule is one of the most trusted formulas in the world of fix-and-flip real estate, helping investors quickly determine the maximum price they should pay for a property. And now, with our 70% Rule Calculator, you can take the guesswork out of the equation and streamline your investment decisions.
What is the 70% Rule?
The 70% Rule is a simple guideline that helps flippers calculate the maximum allowable offer (MAO) on a property. The idea is to ensure that after purchasing a property and covering renovation costs, there is still room for a profit margin.
The formula is:
Maximum Allowable Offer = (After Repair Value × 70%) − Repair Costs
After Repair Value (ARV): The estimated market value of the property after renovations are complete.
Repair Costs: The total cost required to bring the property up to market standards.
For example, if a home’s ARV is $300,000 and the estimated repairs are $50,000:
MAO=(300,000×0.7)−50,000=210,000−50,000=160,000\text{MAO} = (300,000 \times 0.7) – 50,000 = 210,000 – 50,000 = 160,000MAO=(300,000×0.7)−50,000=210,000−50,000=160,000
This means the maximum you should pay for this property is $160,000 to maintain a healthy profit margin.
Why the 70% Rule Matters
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Protects Your Profit Margin: Following the 70% Rule reduces the risk of overpaying for a property.
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Speeds Up Decision-Making: Investors can quickly evaluate deals without endless spreadsheets or complicated calculations.
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Standardizes Your Investment Strategy: Using a consistent formula ensures you make data-driven decisions for every project.
Introducing the 70% Rule Calculator
While the formula is simple, manually calculating MAO for multiple properties can be time-consuming. That’s where our 70% Rule Calculator comes in.
Key Features:
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Fast Calculations: Input ARV and repair costs, and instantly see your maximum offer.
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Customizable Percentages: Adjust the 70% threshold to fit your unique market conditions.
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Profit Projection: Estimate potential profits before making an offer.
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Mobile-Friendly: Use it on-the-go during property tours.
How It Works
Enter the After Repair Value (ARV) of the property.
Input the estimated repair costs.
Click Calculate to see your Maximum Allowable Offer.
With this tool, you can evaluate multiple properties quickly and confidently, ensuring you never overpay.
Tips for Using the 70% Rule Effectively
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Do Your Due Diligence: Always verify ARV estimates with comps from your local market.
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Account for Unexpected Costs: Include a contingency for unforeseen repairs—usually 10–15% of the repair budget.
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Adjust for Hot Markets: In competitive markets, you might need to be flexible with the 70% Rule, but only if the numbers still make sense.
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Track Your Deals: Keep a record of past projects to refine your ARV and repair cost estimates over time.
Why Flippers Trust Our 70% Rule Calculator
At JCREIG Capital Funding, we understand the challenges real estate investors face. That’s why we designed our 70% Rule Calculator to simplify your workflow, minimize risk, and maximize your profits.
Whether you’re a first-time flipper or a seasoned investor managing multiple deals, our calculator empowers you to make confident, profitable offers every time.
Ready to Calculate Your Next Deal?
Stop guessing and start flipping smarter. Use our 70% Rule Calculator today and take the first step toward more profitable real estate investments.

