Most cash offers on a house come from the same basic formula, and once you see the pieces, the number stops feeling arbitrary. A buyer starts with what the home would be worth fully fixed up, subtracts the cost of fixing it, subtracts their intended profit and selling costs, and the remainder is what they can pay you today. There is no magic to it. The variables just change from house to house.
The After-Repair Value
The starting point is the after-repair value, usually shortened to ARV. This is the price your house would realistically sell for on the open market after all repairs and updates are done, not what it would fetch in its current condition. A buyer figures this out by looking at recent sales of comparable homes nearby — same general size, age, layout, and neighborhood — that have already been renovated and sold.
In McHenry, that means pulling sold prices from your specific area rather than a countywide average, because a few blocks can change the number noticeably. If updated three-bedroom homes on streets like yours have been closing around a certain figure, that becomes the ARV. The ARV is not a promise of what you will get. It is the ceiling the whole calculation works down from, so an honest buyer will keep it grounded in real comparable sales instead of inflating it to make the rest of the math look better.
Subtracting Repair Costs
Once the ARV is set, the buyer estimates what it will cost to bring the house to that resale condition. This covers the obvious items — roof, HVAC, flooring, kitchen, bathrooms — and the quieter ones like outdated wiring, foundation issues, or water damage that only show up on a walkthrough. Cosmetic work is cheaper than structural work, which is why two houses with the same ARV can produce very different offers. A home that needs paint and carpet is in a different category from one that needs a new furnace and a rebuilt bathroom.
Reputable local buyers such as We Buy Houses McHenry will walk the property or review photos and details before committing to a repair figure, because guessing too low hurts them and guessing too high hurts you. When you understand this part of the formula, it is easier to see why a buyer might point out a cracked foundation or an aging roof — those are line items that come straight off the top, not negotiating theater. If you have paperwork on recent repairs or replacements, sharing it can trim the estimate in your favor.
Where Your Offer Lands
After the ARV and the repair costs, two more pieces come out: the buyer’s holding and selling costs, and their profit margin. Holding costs are the taxes, insurance, utilities, and loan interest they pay while they own and renovate the house. Selling costs are the commissions and fees they will face when they resell it. The profit margin is what keeps them in business; it is typically a percentage of the ARV rather than a random markup.
Put together, a simplified version looks like this: ARV minus repairs minus holding and selling costs minus profit equals your offer. That is why a cash number is lower than full market value — you are trading some price for speed, certainty, and skipping the repairs, showings, and commissions yourself. For a seller facing a tight timeline, an inherited property, or a house that would not pass a traditional inspection, that trade can be worth it. The key is knowing the offer reflects real costs and not a lowball pulled from nowhere.
The practical next step is to ask any buyer to show you the breakdown — their estimated ARV, the repair figure, and the deductions — and compare it against recent sales in your part of McHenry. A buyer who can walk you through the math line by line is one worth taking seriously.