70% Rule House Flipping Calculator

Determine your Maximum Allowable Offer (MAO) instantly to ensure profitable real estate deals.

What is the 70% Rule House Flipping Calculator?

The 70% rule house flipping calculator is a foundational tool used by real estate investors to determine the maximum price they should pay for a distressed property. The core philosophy of the 70% rule is simple: an investor should never pay more than 70% of the property's After Repair Value (ARV) minus the costs of the needed renovations.

This rule is designed to create a "safety cushion" that accounts for buying costs, selling costs, holding costs (like taxes and insurance), and the investor's desired profit. Using a 70% rule house flipping calculator helps beginners and veterans alike avoid overpaying in the heat of a bidding war, which is the most common reason house flips fail.

While often treated as a "golden rule," it is important to remember that it is a guideline. In high-demand markets, investors might use a 75% or 80% rule, while in high-risk areas, they might drop to 60%. This 70% rule house flipping calculator allows you to toggle those percentages to match your specific market needs.

70% Rule House Flipping Calculator Formula

The mathematical foundation of the 70% rule house flipping calculator is straightforward but powerful. It ensures that all financial liabilities are accounted for before you sign a purchase contract.

The Formula:

MAO = (ARV × 0.70) − Estimated Repair Costs

Variable	Meaning	Unit	Typical Range
ARV	After Repair Value	USD ($)	$100k – $2M+
Repair Costs	Total renovation budget	USD ($)	10% – 50% of ARV
Rule %	The safety percentage	Percent (%)	65% – 80%
MAO	Maximum Allowable Offer	USD ($)	Calculated Output

Caption: Data variables used within the 70% rule house flipping calculator.

Practical Examples (Real-World Use Cases)

Example 1: The Suburban Starter Home

An investor finds a dated 3-bedroom house. Comparable homes in perfect condition are selling for $400,000. This is the ARV. A contractor estimates repairs at $60,000. Using the 70% rule house flipping calculator:

• ARV: $400,000
• 70% of ARV: $280,000
• Minus Repairs: $280,000 – $60,000
• MAO: $220,000

By purchasing at $220,000, the investor has $120,000 left (the other 30% of ARV) to cover closing costs, loan interest, and profit.

Example 2: High-Margin Opportunity

Imagine a property with an ARV of $250,000 needing $40,000 in work. The 70% rule house flipping calculator yields a MAO of $135,000. If the investor negotiates the price down to $120,000, they have significantly increased their profit margin beyond the standard 70% threshold, providing a larger buffer against market fluctuations.

How to Use This 70% Rule House Flipping Calculator

1. Determine the ARV: Look at "comps" (comparable sales) in the last 6 months within a half-mile radius of your target property.
2. Estimate Repairs: Be honest. Include everything from the roof to the kitchen cabinets. It is better to overestimate by 10% than to underestimate.
3. Select Your Rule: If you are in a very competitive market (like Los Angeles or Miami), you might use 75%. If the house is in a rural area with slow sales, stick to 70% or 65%.
4. Read the MAO: The large green number is your ceiling. Do not exceed this number regardless of how much you "like" the house.
5. Analyze the Chart: View the visual breakdown to see how much of your total value is tied up in the purchase price versus the renovation.

Key Factors That Affect 70% Rule House Flipping Calculator Results

• Market Velocity: In a "hot" market where homes sell in days, you can often push the 70% rule to 75% because holding costs (interest/utilities) are lower.
• Accuracy of Repair Estimates: The 70% rule house flipping calculator is only as good as the numbers you put in. Many flippers fail because they miss structural issues or mold.
• Financing Costs: If you are using hard money with 12% interest, your "buffer" is eaten up faster than if you are using your own cash.
• Exit Strategy: Are you flipping to a retail buyer or a landlord? Rental-ready finishes are often cheaper than retail-ready luxury finishes.
• Closing Costs: Remember you pay closing costs twice—once when you buy and once when you sell. This can total 8-10% of the ARV.
• Local Property Taxes: High-tax states like New Jersey can significantly drain your profit buffer if the flip takes longer than 6 months.

Frequently Asked Questions (FAQ)

Is the 70% rule still relevant in today's housing market?

While the 70% rule is harder to find in competitive urban markets, it remains the gold standard for risk management. Many investors now use a 75% rule in high-value areas, but they accept a lower profit margin as a trade-off.

Does the 70% rule include closing costs?

The 30% gap between the ARV and the purchase/repairs is meant to cover closing costs, holding costs, and profit. It is not an itemized line, but a general safety net.

Can I use this for wholesaling?

Yes! A wholesaler would use the 70% rule house flipping calculator to find the MAO for a flipper, and then subtract their wholesale fee from that number to find their own maximum offer.

What if the ARV is under $100,000?

For lower-priced homes, the 70% rule often fails because fixed costs (like a $5,000 roof or $3,000 closing fees) take up a larger percentage of the total value. You may need a 60% or 50% rule for "cheap" houses.

Does the calculator handle luxury flips?

Luxury flips often have much higher holding costs and longer timelines. You should use a more conservative percentage (like 65%) to account for the increased risk and time.

Should I include my own labor in the repair costs?

Yes. Even if you do the work yourself, you should budget the market rate for labor to ensure the deal is truly profitable based on your time's value.

What is ARV in the 70% rule house flipping calculator?

ARV stands for After Repair Value. It is the estimated market value of the property after it has been fully renovated to meet local market standards.

What happens if I overpay?

Overpaying reduces your buffer. If repairs go over budget or the market dips, you could lose money or be forced to hold the property as a rental until values rise.

Related Tools and Internal Resources

Check out our other real estate tools to master your investment strategy:

• ARV Calculator – Deep dive into calculating comparable property values.
• House Flipping Profit Calculator – An itemized look at every single expense in a flip.
• Real Estate Investment Software Guide – Reviewing the best tools for modern investors.
• BRRRR Method Calculator – For those looking to flip houses into long-term rentals.
• Fix and Flip Financing Guide – How to fund your deals using hard and private money.
• Wholesale Real Estate Math – Formulas specifically for property wholesalers.