A wholesale real estate calculator answers the one question that makes or breaks every wholesale deal before you ever put a contract in front of a seller: what's the absolute most you can offer and still have room to assign the contract to an end buyer at a fee that's worth your time? Get this number wrong and you either lose the deal to a competing investor, or you lock up a contract you can never actually sell.
This calculator, built by Arb Digital as part of our free real estate investor toolkit, works the math backward from the after-repair value, the way experienced wholesalers actually think about a deal β starting with what the finished house is worth, backing out repairs and the end buyer's required margin, and only then landing on the number you can put in front of the seller.
What This Wholesale Real Estate Calculator Does
You enter the after-repair value (ARV), the estimated repair costs, the percentage rule your target end buyer uses to cap their offers, and the assignment fee you want to keep. The tool calculates the end buyer's maximum allowable offer (MAO) β the ceiling a rehabber or flipper would pay for the deal β then subtracts your assignment fee to show your own maximum contract price with the seller. It also shows the built-in profit margin left over for the end buyer, so you can sanity-check that the deal is actually attractive enough to sell quickly.
How to Use It
- Enter the ARV. Base this on recent, truly comparable sold listings β not asking prices, and not your own optimistic guess.
- Enter estimated repair costs. Get a contractor walk-through whenever possible; guessing low here is the fastest way to kill a deal after the fact.
- Enter the MAO rule percentage your typical cash buyers use β 70% is the most common benchmark, though some buyers in hot markets go higher and some in slower markets go lower.
- Enter your desired assignment fee β the amount you want to keep for finding and controlling the deal.
- Click Calculate to see your maximum offer to the seller, and compare it against the seller's asking price before you negotiate.
The Formula / How It's Calculated
The end buyer's maximum allowable offer is calculated as the ARV multiplied by the rule percentage, minus the estimated repair costs. That formula bakes in the buyer's target profit margin, their holding costs, and a cushion for the inevitable repair surprises β all compressed into that single percentage. Your own maximum offer to the seller is simply the end buyer's MAO minus your assignment fee, because whatever you keep as a fee has to come out of the same ceiling the end buyer won't go above.
This isn't an official government formula β it's an industry rule of thumb refined over decades of investor practice, and Investopedia's explainer on real estate wholesaling is a solid plain-language reference for how the underlying strategy fits into the broader investing landscape, including how it differs from flipping and buy-and-hold investing.
You're Selling a Contract, Not a House
This is the single most important mental shift for anyone new to wholesaling: you never actually buy the property. You control it under a purchase contract with the seller, and then you sell β assign β your rights and obligations under that contract to an end buyer for a fee, before the closing date ever arrives. The end buyer closes directly with the original seller (or, in a double-close structure, with you as a very brief middleman owner), and your profit is the spread between what you agreed to pay and what the end buyer agreed to pay for the contract itself.
Because you're monetizing a contract rather than equity in real property, the entire deal lives or dies on your paperwork being assignable and on there being a real, qualified buyer willing to step into your shoes before your closing deadline arrives. That's why speed and an existing buyer network matter more in wholesaling than in almost any other real estate strategy β a great deal with no buyer lined up is just a ticking clock.
Assignment vs. Double Close: Two Ways to Get Paid
There are two standard ways to actually collect your fee. In a straightforward assignment, you sign an "assignment of contract" that transfers your purchase rights to the end buyer for an agreed fee, and the end buyer closes directly with the seller β your fee is typically paid at that closing, and your name never appears on a deed. It's fast and has minimal transaction costs, but it also means the assignment fee is visible to everyone at the closing table, including the seller in many cases, which some sellers find uncomfortable once they see the number.
A double close (sometimes called a simultaneous or back-to-back closing) involves two separate transactions: you actually close on the property from the seller first, taking brief title, and then immediately resell to the end buyer in a second closing, often the same day. This keeps your margin private and works around contracts that explicitly prohibit assignment, but it requires you to have (or arrange) the funds to close the first leg β commonly through transactional funding β and it adds a second full set of closing costs. Wholesalers generally default to a straight assignment when they can, and reach for a double close when the contract terms, the seller's comfort level, or local custom call for it.
Why the Spread Must Leave the End Buyer Whole
A wholesale deal only works if the end buyer still has a profitable project after paying your assignment fee on top of the contract price. That's exactly why this calculator subtracts your fee from the buyer's MAO rather than adding it on top of the seller's price β if you reverse that logic and simply add your fee to whatever the seller wants, you'll routinely price yourself out of every serious cash buyer's range. Experienced wholesalers protect their reputation, and their pipeline of repeat buyers, by never structuring a deal so thin that the end buyer barely breaks even after repairs and holding costs. A buyer who gets burned once won't take your next call.
Building a Cash Buyer List
None of this math matters without a list of real, funded end buyers ready to move fast on a good spread. Serious wholesalers build this list continuously β networking at local real estate investor association meetups, tracking who's actively buying and rehabbing in specific zip codes from public records, running targeted ads, and following up relentlessly after every closing to keep past buyers warm for the next deal. The strongest lists are segmented by neighborhood, price range, and property type, because a buyer who flips $150,000 starter homes in one part of town usually isn't the right fit for a $600,000 rehab across the city, even if the math on paper looks similar.
Licensing and Disclosure Rules Are Tightening
Wholesaling operates in a legal gray zone that regulators in a growing number of states have started narrowing. Several states have passed or proposed legislation requiring wholesalers to disclose their equitable interest (rather than fee simple ownership) to the end buyer, cap the number of assignable contracts an unlicensed person can handle in a year, or require a real estate license once activity crosses certain thresholds. Rules vary significantly by state and change frequently, so anyone wholesaling regularly β not just occasionally flipping a single contract β should check current state and local requirements and consider consulting a real estate attorney, since practicing without proper disclosure or licensing where it's required can expose you to fines or contract unenforceability.
Run the rehab-side numbers too β Arb Digital builds fast, high-converting websites and content for investors, and we've put together a full free toolkit to check every angle of a deal before you commit.
Fix and Flip Calculator All Free ToolsCommon Mistakes to Avoid
- Inflating the ARV based on wishful thinking instead of genuinely comparable, recently sold properties.
- Underestimating repair costs without ever getting a contractor's eyes on the property.
- Adding your fee on top of the seller's price instead of backing it out of the end buyer's ceiling β this prices deals out of the market.
- Contracting a property with no buyer in sight and running out the clock on your closing deadline.
- Ignoring anti-assignment clauses in the purchase contract, which can force an unplanned double close.
- Operating without understanding your state's disclosure and licensing rules for wholesaling activity.
Related Free Tools From Arb Digital
Before you lock up a contract, stress-test the numbers with our 70% rule calculator and our fix and flip calculator to see the deal from the rehabber's side. If a deal turns into a hold instead of a flip, check our property tax calculator and closing cost calculator for ongoing and transactional costs, and our capital gains tax calculator if you're weighing an eventual sale. Explore the rest of our free online tools hub for more investor calculators.
Frequently Asked Questions
Fees vary widely by market and deal size, commonly ranging from a few thousand dollars on smaller properties to tens of thousands on larger or particularly well-priced deals, but the fee should always leave the end buyer with a workable margin.
No β it's the most common industry benchmark, but individual cash buyers and flippers may use a higher or lower percentage depending on their market, financing costs, and risk tolerance, so it's worth confirming the rule your specific buyers actually use.
Requirements vary by state and are changing; some states allow occasional assignment of your own equitable contract interest without a license, while others now require licensing or specific disclosures once activity becomes frequent, so check current state rules or consult an attorney.
You risk losing your earnest money deposit and defaulting on the purchase contract, which is why building a cash buyer list before contracting a property is critical, not optional.
An assignment transfers your contract rights to the end buyer who then closes directly with the seller, while a double close involves you briefly taking and reselling title in two back-to-back transactions, often used when a contract prohibits assignment.
In a straight assignment closing, the fee is often visible on the closing paperwork, which is one reason some wholesalers use a double close to keep the spread private, though transparency with sellers is generally the more defensible practice.
This tool provides general estimates for educational purposes only and is not financial, tax, legal, or medical advice. Figures are illustrative; consult a licensed professional for decisions.
