Maximize your real estate profits with our free Maximum Allowable Offer (MAO) Calculator. Instantly factor in ARV, repairs, and your assignment fee to accurately determine your perfect buying price and make confident, data-driven wholesale offers.
MAO Calculator
What is the standard formula used to calculate the Maximum Allowable Offer?
The standard formula for calculating the Maximum Allowable Offer (MAO) is primarily used by real estate investors and wholesalers to guarantee a profitable margin on a fix-and-flip. The basic equation is:
MAO = (ARV × 0.70) - Repair Costs - Assignment Fee
- ARV: After Repair Value (what the house is worth fixed up).
- 70% (0.70): The standard investor margin that accounts for profit, holding costs, and closing costs.
- Repair Costs: Estimated expenses to renovate the property.
- Assignment Fee: Your desired wholesale profit (if wholesaling; if flipping yourself, omit this).
How do you accurately determine the After Repair Value of a property?
Accurately determining the After Repair Value (ARV) requires analyzing recent comparable sales (comps) in the property's immediate neighborhood.
- Select Comps: Find 3 to 5 properties sold within the last 3 to 6 months.
- Match Criteria: Ensure comps share similar square footage, bed/bath count, year built, and lot size.
- Proximity: Restrict the search to a 0.5 to 1-mile radius from the subject property. Do not cross major highways or physical barriers.
- Condition: Only evaluate fully renovated properties to understand the post-repair market value.
Averaging the sold price per square foot of these comps and multiplying it by your property's square footage yields a highly accurate ARV.
Why is the 70 percent rule commonly used in MAO calculations?
The 70 percent rule is the industry standard because it bakes an essential safety net and profit margin into the deal. When an investor buys a property at 70% of its ARV (minus repairs), the remaining 30% discount is typically split into two crucial buckets:
- Costs (10-15%): Covers purchasing closing costs, holding costs (property taxes, utilities, insurance, hard money loan interest), and selling closing costs (realtor commissions, buyer concessions).
- Profit (15-20%): Ensures the investor actually makes a worthwhile return on their time, capital, and risk.
Without this 30% buffer, minor market fluctuations or unexpected rehab expenses could quickly turn a profitable flip into a devastating financial loss.
What types of repair costs must be deducted when figuring out your MAO?
When calculating MAO, you must deduct the total estimated cost to bring the property to a market-ready condition. Using a structured breakdown prevents missing critical expenses:
| Category | Examples of Repair Costs |
|---|---|
| Exterior/Structural | Roofing, foundation repair, siding, windows, landscaping |
| Mechanical Systems | HVAC units, plumbing updates, electrical rewiring |
| Interior Finishes | Drywall, paint, flooring, lighting fixtures, doors |
| Kitchen & Bath | Cabinets, countertops, appliances, tubs, vanities |
| Hidden/Soft Costs | Permits, dumpster rentals, mold remediation, pest control |
Always include a 10% to 15% contingency buffer in your total repair estimate to account for unforeseen issues discovered during the project.
How does your desired wholesale assignment fee affect the final MAO?
Your desired wholesale assignment fee has an inverse, dollar-for-dollar relationship with your Maximum Allowable Offer. Because the end buyer (the flipper) is strictly calculating their purchase price based on ARV and repairs, any profit you intend to make must be subtracted directly from what you can offer the seller.
For example, if the investor's buy price (ARV × 70% - Repairs) is $100,000, and you want a $10,000 assignment fee, your MAO to the seller becomes $90,000. If you increase your desired fee to $15,000, your MAO drops to $85,000. The larger your assignment fee, the lower your offer to the homeowner must be.
What happens to your deal if you offer a seller more than your MAO?
Offering a seller more than your MAO compromises the financial viability of the transaction, leading to several negative outcomes:
- Loss of End Buyers: If you are a wholesaler, cash buyers will reject the deal because the numbers no longer meet their minimum profit thresholds.
- Reduced Wholesale Fee: To save the deal, you may be forced to drastically reduce or completely forfeit your assignment fee to make the price appealing to buyers.
- Financial Loss: If you are buying the property to flip yourself, exceeding the MAO eats directly into your profit margin. If unexpected costs arise, you will likely lose money.
Ultimately, exceeding the MAO transforms a solid investment into a high-risk liability.
How do local market conditions influence the percentage used in the formula?
While the 70% rule is a standard benchmark, local market conditions frequently dictate adjustments to this percentage based on supply, demand, and risk.
- Hot/Seller's Markets (75% - 85%): In competitive areas with low inventory and rapidly rising prices, investors accept tighter margins. Properties sell quickly, reducing holding costs, so investors might use 75% or 80% to win deals against competing buyers.
- Cold/Buyer's Markets (60% - 65%): In declining markets or rural areas where properties sit on the market longer, investors face higher holding costs and greater pricing risk. To protect themselves, they require a larger margin, adjusting the formula down to 60% or 65%.
What are the risks of underestimating rehab costs when calculating MAO?
Underestimating rehab costs is one of the most dangerous mistakes an investor can make, as it artificially inflates the MAO. If you calculate an MAO based on a $30,000 rehab that actually costs $50,000, the risks include:
- Erased Profits: The extra $20,000 comes directly out of your projected profit, potentially turning the investment into a break-even or losing project.
- Incomplete Projects: Underestimating can lead to funding shortfalls. If hard money loans max out, the investor might run out of cash before the flip is finished.
- Ruined Reputation: If a wholesaler consistently pitches deals with underestimated repairs, cash buyers will lose trust, blacklist the wholesaler, and stop buying their contracts.
Should closing and holding costs be explicitly factored into the MAO equation?
In the standard MAO formula (ARV × 70% - Repairs), closing and holding costs are not explicitly subtracted as separate line items. Instead, they are already baked into the 30% discount margin.
Typically, that 30% margin is expected to cover roughly 10% to 15% in soft costs (closing fees, hard money loan interest, taxes, utilities, and realtor commissions) and leave 15% to 20% for pure profit.
However, if an investor uses a different calculation model—such as the "Fixed Profit" method (ARV - Repairs - Fixed Profit - Fixed Costs)—then closing and holding costs must be explicitly estimated and deducted. For most quick evaluations, the 70% rule handles them implicitly.
How do you negotiate with a seller when their asking price exceeds your MAO?
When a seller's asking price is higher than your MAO, successful negotiation relies on transparency and problem-solving rather than aggressive haggling:
- Show the Math: Gently walk the seller through your formula. Explain your ARV, show them contractor estimates for repairs, and explain the costs of closing and holding the property.
- Highlight the Benefits: Remind them of the convenience you offer: an all-cash close, no realtor commissions, paying their closing costs, and buying "as-is."
- Explore Creative Financing: If they demand a higher price, offer alternative solutions like seller financing or a novation agreement, which can sometimes allow for a higher purchase price.
- Follow Up: If they decline, leave a friendly offer on the table. Circumstances change, and they may reach out later.
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