How to Calculate Your Maximum Offer for a Flip

Whether you’re a wholesaler hunting for a contract or a flipper doing the math on your next project, everything hinges on one number: the Maximum Allowable Offer (MAO). In 2026, where labor costs are high and inventory is tight, "guesstimating" will get you burned. Here is the breakdown of the industry-standard "Flip Formula" and how to use it to protect your profit margins.

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The Formula

To find your MAO, you work backward from the final sale price:

Step 1: The Foundation - After-Repair Value

The entire calculation collapses if this number is wrong. The after-repair value (ARV) is the projected market value of the property after you have completed the intended renovations.

• How It's Calculated: Investors determine the ARV by analyzing detailed "comps" (comparable property sales) of recently renovated, similar homes within a tight radius of the target property.
• The Golden Rule of ARV: Never confuse what a property could sell for (your goal) with what it is currently worth. Your entire project depends on achieving that future value.

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Step 2: The Multiplier - The 65-75% Rule

You cannot pay full market value for a house that needs work. This multiplier creates the initial space needed for your profit and all costs. In traditional terms, this is often called the "70% Rule," meaning you multiply the ARV by 0.70.

• Where the other 30% goes: It doesn't all go to profit. This cushion covers critical carrying costs, including hard money loan interest, property taxes, insurance, utility bills during construction, and marketing/closing costs when you finally sell.
• ‍Adjusting for the market: The multiplier is not fixed:
  • 65%: Standard cushion for higher-risk projects, slower markets, or when financing is expensive (high interest rates).
  • 70%: The classic, reliable default in a stable market.
  • 75%: Used in "hyper-hot" markets with low inventory where properties sell instantly, or for ultra-luxury "trophy" homes where the final sales price is virtually guaranteed.

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Step 3: Deducting Rehab Cost (and Assignment Fee)

When calculating your offer, remember: you aren’t just buying a house; you are buying the work required to make it profitable. To arrive at your final number, you must subtract the total cost of the transformation and the cost of acquiring the deal.

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The Rehab Cost

This is the comprehensive budget required to bring the home from its current distressed state up to the ARV standard. This includes:

• Hard Costs: Labor, raw materials, and finishes.
• Soft Costs: Architectural designs, city permits, and inspection fees.‍
• The "Underestimation" Trap: New investors often project what they hope a project will cost rather than the current market rate for professional contractors. In 2026, labor and material costs remain volatile; always base your numbers on real-world quotes, not "gut feelings."

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The Contingency Buffer

The most dangerous words in flipping are "I didn't see that coming." Always bake in a 10–15% contingency fund to your rehab budget. This is your insurance policy against the "surprises" hidden behind the drywall, such as outdated knob-and-tube wiring, structural foundation cracks, or plumbing leaks that only appear once the water is turned back on.

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The Assignment Fee

If you are buying from a wholesaler, or if you are a wholesaler yourself, this fee must be accounted for in the math.

• For Wholesalers: This is your paycheck for the legwork of finding an off-market deal and negotiating the contract.
• For Flippers: This is an acquisition cost. You must subtract this fee from your total available budget to ensure you don't overpay for the property itself.

By subtracting both, you ensure that your profit margin remains protected from the moment you sign the contract.

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Disclaimer: This content is meant for informational purposes only and is not intended to be construed as financial, tax, legal, or insurance advice.