MAO Calculator
Set a non-negotiable purchase ceiling on every deal — before you sit down to negotiate.
Free to start. No spreadsheets.
Visual Walkthrough
MAO is the 70% rule with your specific costs plugged in — replacing estimates with actuals for a precise bid ceiling:
Wholesale Deal — How MAO Protects Both Parties
Wholesaler Math (65%)
ARV $220k × 65% = $143k
− Rehab $35k = $108k
− Assignment $8k = $100k MAO
Buyer's View (70%)
ARV $220k × 70% = $154k
Buy-in: $100k + $8k fee = $108k
Buyer cushion: $154k − $108k − $35k = $11k ✓
The wholesaler's MAO must leave the buyer a profitable margin — otherwise the contract won't sell.
Target Margin % by Investor Type
Wholesaler
60–65%
Leaves buyer room
Flipper
70%
Standard MAO
Cash Flipper
72–75%
No carry cost
The MAO Formula — Precise Acquisition Limit Calculation
The full MAO formula is more precise than the 70% rule shortcut because it accounts for your specific financing costs, timeline, and profit target — not industry averages.
Worked Example: Wholesale Deal, Atlanta, GA
ARV: $220,000 · Rehab: $35,000 · Target assignment fee: $8,000
Cost Stack
65% of ARV: $143,000
Rehab: −$35,000
Assignment fee: −$8,000
Wholesaler MAO: $100,000
End Buyer's View
Contract price: $100,000
Assignment fee: +$8,000
Total buy-in: $108,000
70% of ARV: $154,000
Buyer margin: $154k − $108k − $35k rehab = $11,000 cushion
Pro Tip: The buyer's cushion in a wholesale deal is what makes the contract assignable. If your numbers leave the end buyer no room (less than $5,000 buffer above their MAO), the deal will not sell — regardless of how good your ARV analysis is.
Understanding Maximum Allowable Offer
What the MAO Calculator Does
Calculates the precise highest price you can pay for a property while still achieving your minimum profit target. Unlike the simplified 70% rule, the full MAO formula lets you input your specific acquisition margin, holding cost projections, financing type, and assignment fee — producing a bid ceiling calibrated to your exact deal structure.
Why MAO is Sacred in Real Estate Investing
Every $1,000 above your MAO is $1,000 out of your profit — not from some abstract fund, but from what you planned to make on the deal. Wholesalers who exceed their MAO can't assign the contract. Flippers who exceed their MAO either break even or lose money. MAO is not a negotiating position — it's the mathematical boundary where deals stop making sense.
The MAO Calculation Process
Set Your ARV and Margin %
Establish a verified ARV from closed comps. Choose your target acquisition margin percentage (70% for flips, 65% for wholesale). Multiply ARV by your margin % to get your gross acquisition ceiling.
Subtract All Costs
Deduct: full rehab estimate (with contingency), buying transaction costs, estimated holding costs for your projected timeline, selling costs, and any assignment fee.
Enforce the Result
The remaining number is your MAO. Offer 5-8% below it. Never negotiate past it. If the seller's floor exceeds your MAO, walk away and document why — every pass-on teaches you something about deal flow.
Most investors lose money here — avoid these mistakes:
- Bidding above MAO because 'the market is strong right now' — market conditions are already reflected in your ARV and comp data.
- Omitting the assignment fee when wholesaling — your MAO must leave room for both your fee AND the buyer's full margin.
- Using hard money rates from last year — interest rate changes shift your MAO by thousands of dollars on every deal.
Example Scenario
Interactive MAO Calculator
Do not exceed this value or your target margin collapses.
Real-World Application
How professional investors use MAO in negotiations:
- ✓Calculate MAO BEFORE every lead call, not during. Negotiating without a pre-calculated ceiling leads to emotional bidding.
- ✓Offer 5-8% below MAO as your opening position — give yourself room to 'move' in negotiation while staying protected.
- ✓Never exceed MAO 'just this once.' Every investor who breaks this rule has a story about how it went wrong.
- ✓Adjust your MAO monthly for interest rate changes — if hard money rates rise 1%, your MAO drops by approximately $3,000-$5,000 on a typical deal.
- ✓Track the gap between your MAO and your accepted offer prices — if you're consistently paying exactly MAO, you're negotiating too little.
MAO Calculation — Investor Questions Answered
Q.Can MAO work for buy-and-hold deals?
The MAO formula in its standard form is built for fix-and-flip and wholesale transactions. For buy-and-hold, a different framework applies: purchase price is evaluated against Cap Rate and Cash-on-Cash return, not against an exit sale price. However, BRRRR investors use a modified MAO concept — the purchase price must still allow for a cash-out refinance at 70-75% of ARV after the rehab, leaving adequate equity. Use the Rental Property Calculator for buy-and-hold analysis.
Q.How does financing type affect my MAO?
Financing type directly impacts carrying costs, which affect MAO. Cash buyers have no interest expense — effectively zero holding cost for the money itself. Hard money borrowers pay 10-14% annually plus 1-3 origination points. On a $150,000 loan for 6 months, that's $11,250-$13,500 in interest alone. This is why cash buyers can pay slightly more (a higher MAO) and still hit the same net profit — their cost stack is lower.
Q.What percentage of ARV should I use in my MAO formula?
Standard flippers: 70%. Wholesalers: 60-65% (to leave buyer margin). Cash buyers in fast markets: up to 75%. Conservative markets or first-time investors: 65%. The percentage encodes your cost assumptions — the higher the percentage, the slimmer the buffer for overruns. Beginners should use 65% until they have 10+ deals of real cost data to justify anything higher.
Q.How do I adjust MAO when buying from an MLS listing vs. off-market?
MLS deals typically involve a buyer's agent (2.5-3% buyer-side commission) and a seller's agent (2.5-3%). These costs come out of your side — either as a fee you pay or as part of the seller's pricing. Off-market deals eliminate agent commissions entirely, which increases your effective MAO by 5-6%. This is why off-market deals often work at prices that would fail the 70% rule on the MLS.
Q.If I'm over MAO, how much can I realistically negotiate down?
In most markets, motivated sellers will negotiate 5-15% off their asking price. If a property is listed at $200,000 and your MAO is $165,000, you need a 17.5% reduction — possible with a truly motivated seller, but not typical. Your best strategy: present the math directly ('At $165k, I can pay cash and close in 14 days. At $185k, the deal doesn't work for me.') and let the numbers speak. Some sellers will meet you at MAO when they understand the calculation.
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