Wholesale Deal Calculator: How the Math Works
Updated June 17, 2026
A wholesale deal calculator works backward from your cash buyer's maximum allowable offer to find what you can pay and still earn an assignment fee. The math: buyer's MAO = ARV − repairs − their costs − their profit; your offer = buyer's MAO − your assignment fee. If your offer is below what the seller will accept, the deal works; if not, it doesn't.
Wholesaling profit lives in a single gap: the spread between what you can put a property under contract for and what a cash buyer will pay you to assign it. A wholesale deal calculator exists to find that gap before you make an offer, so you never tie up a property you can't actually flip to a buyer.
The math runs backward from everyone else's. A flipper computes the most they can pay; a wholesaler computes the most their buyer can pay, then leaves room for a fee underneath it. Get this backward and you'll contract deals no investor will take off your hands. Here's how the inputs fit together.
Working backward from the buyer's number
Start with your end buyer, not yourself. A cash buyer (usually a flipper or a landlord) has their own MAO: ARV minus repairs minus their holding, closing, and profit. That number is the most they'll pay for the contract. Your job is to lock up the property below that, with enough room left for your fee.
So your maximum offer to the seller is the buyer's MAO minus your assignment fee. If a buyer's MAO is $180,000 and you want a $15,000 fee, you must contract the property at $165,000 or less. The seller's willingness to accept that price is the final variable that decides whether the deal is real.
| Step | Calculation | Example |
|---|---|---|
| Buyer's ARV | From comps | $300,000 |
| Buyer's MAO | ARV − repairs − their costs − profit | $180,000 |
| Your assignment fee | Your target spread | $15,000 |
| Your max offer | Buyer's MAO − fee | $165,000 |
| Deal works? | Seller accepts ≤ your max | Yes if ≤ $165K |
Wholesale deal calculator, worked backward
The inputs that actually move the number
Four inputs drive everything: ARV, repairs, the buyer's required profit, and your fee. ARV and repairs you estimate the same way any investor does — comps and a rehab budget. The buyer's profit is the one wholesalers forget: cash buyers won't take a thin deal, so you have to leave them a real margin, not just yourself.
Your assignment fee is the only input fully in your control, and it's tempting to inflate it. But a fat fee narrows your offer to the seller, which makes the seller less likely to accept. The skill is finding the fee that's worth your effort while keeping your offer competitive enough to get a yes.
From the calculator to a blasted offer
The calculator gives you a max offer per property. The bottleneck is volume: at a low single-digit acceptance rate, you need to make a lot of offers to land a contract you can assign. Running the calculator once is easy; running it across hundreds of listed properties and sending each a priced offer is the actual business.
That's where the math meets the engine. Encode your buy box — the formula behind the calculator — and BILT CRM comps each property, computes the offer, and blasts the LOI to the listing agent. Once you know your number, BILT blasts the offers, so wholesaling becomes a volume game you can actually run instead of a calculator you fill out one deal at a time.
Frequently asked
How does a wholesale deal calculator work?
It works backward from your cash buyer's maximum allowable offer. First find the buyer's MAO (ARV minus repairs, their costs, and their profit), then subtract your assignment fee to get the most you can pay the seller. If the seller accepts at or below that, the deal works.
How do I figure out my assignment fee?
It's the spread you leave for yourself between the seller's price and the buyer's MAO. Set it to what makes the deal worth your time, but remember a bigger fee shrinks your offer to the seller and lowers your odds of acceptance. Competitive markets force tighter fees; less competition allows fatter ones.
Why calculate the buyer's MAO instead of just my own?
Because you're not keeping the property — you're assigning the contract to a cash buyer who must hit their own numbers. If you ignore their profit and costs, you'll contract deals no buyer will take, leaving you stuck. The buyer's MAO is the ceiling your entire offer sits under.
What happens if the seller won't accept my max offer?
Then the deal doesn't work at your fee — you either lower your fee (if there's room), walk away, or keep the seller warm for later. Discipline matters here: contracting a property above the price a buyer will pay is how wholesalers get stuck holding earnest money on a deal nobody wants.
The takeaway
A wholesale deal calculator runs backward: find the buyer's MAO, subtract your assignment fee, and that's the most you can offer the seller. The buyer's profit is the input beginners skip and the one that decides whether your contract is assignable. Encode the formula as a buy box, and BILT blasts a priced offer on every property — volume, not one calculator at a time.