MAO Calculator

Calculate your Maximum Allowable Offer using the 70% rule or a detailed cost breakdown. Know exactly what to offer on your next deal.

Property Values

Need help estimating these values? Try our ARV Calculator and Rehab Estimator.

Quick 70% Rule MAO

ARV × 70%
$280,000
- Rehab Costs
-$50,000
= Maximum Offer
$230,000

Detailed Cost Breakdown (Optional)

For a more accurate MAO, enter your specific costs below.

Detailed MAO Analysis

Maximum Allowable Offer
$230,000
57.5% of ARV
Expected Profit
$40,000
10.0% of ARV

Deal Breakdown

After Repair Value (ARV)$400,000
Rehab Costs-$50,000
Buying Closing Costs-$5,000
Selling Costs-$24,000
Holding Costs-$15,000
Desired Profit-$40,000
Maximum Allowable Offer$230,000

MAO Tips

  • The 70% rule is a quick guideline. Adjust based on your market and risk tolerance.
  • In competitive markets, investors sometimes go up to 75-80% of ARV.
  • Always verify your ARV with recent comparable sales in the area.
  • Add a contingency buffer (10-15%) to your rehab estimate for unexpected costs.

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Understanding Maximum Allowable Offer

The Maximum Allowable Offer is a critical calculation for any fix and flip investor or wholesaler. It ensures you don't overpay for properties and maintains your profit margins.

Two Methods to Calculate MAO

1. The 70% Rule (Quick Method)

MAO = (ARV × 70%) - Rehab Costs

This quick formula is popular because it's simple and builds in a buffer for costs and profit.

2. Detailed Cost Method (More Accurate)

MAO = ARV - Rehab - Buying Costs - Selling Costs - Holding Costs - Desired Profit

This method lets you input specific costs for more accurate analysis.

Pro Tips

  • Always add 10-15% contingency to rehab estimates
  • Use conservative ARV estimates (lower end of comps)
  • Factor in your actual holding timeline
  • Know your market - competitive markets may require higher offers

Frequently Asked Questions

What is MAO in real estate?

MAO (Maximum Allowable Offer) is the highest price an investor should pay for a property to achieve their desired profit. It accounts for after repair value, rehab costs, holding costs, and profit margin.

How do you calculate MAO using the 70% rule?

MAO = (ARV × 70%) - Rehab Costs. For example, if ARV is $300,000 and rehab is $40,000: MAO = ($300,000 × 0.70) - $40,000 = $170,000.

Why do investors use 70% of ARV?

The 70% rule leaves 30% of ARV to cover holding costs, buying/selling costs, and profit. This typically breaks down to ~10% for costs and ~20% for profit, though actual numbers vary.

When should I use 75% or 80% instead of 70%?

In competitive markets or with lower rehab deals, some investors go to 75-80% ARV. However, this reduces your margin for error and profit. Only do this with experience and when you have reliable cost estimates.

How accurate is the MAO calculator?

The MAO calculator is a starting point. Accuracy depends on your ARV and rehab estimates. Always verify ARV with recent comps and get contractor bids for rehab before making offers.

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