Simpler, Faster, Friendlier Home Buyer
Genuine Home Offer

How a Cash Home Offer Is Actually Calculated in Southern California

A fair cash offer is not a random number. It comes from one formula: your home's value once it is fully repaired, minus the repairs, the costs of reselling, and the buyer's margin. Here is how each piece works, with a real example.

By submitting, you agree to be contacted by call or text about your property.

Pricing & Offers6 min readUpdated July 2026

The short answer

  • Every honest cash offer starts from one formula: after-repair value, minus repairs, minus resale and holding costs, minus the buyer's margin.
  • On most as-is homes that lands around 70 to 85 percent of what the house is worth once it is fully repaired.
  • A cash offer is usually lower than a flawless retail sale, and it should be. You skip the repairs, the months on market, the showings, and the risk.
  • If a buyer cannot show you how they reached your number, that is the real warning sign, not the number itself.

Where the number comes from

When people hear the words cash offer, they often picture a buyer pulling a figure out of the air. A real offer is the opposite. It is built backward from one question: what will this house sell for once it is fully repaired, and what does it cost to get it there and resell it?

That gives you a single formula. Start with the after-repair value. Subtract the repairs. Subtract the costs of carrying and reselling the home. Subtract the buyer's margin. What is left is your offer.

The cash offer formula

After-repair value (ARV)
what the home sells for fully fixed
− Repairs
cost to bring it to that value
− Resale & holding costs
agent fees, closing, taxes, insurance
− Buyer's margin
the buyer's profit and risk
= Your cash offer
what you walk away with

No repairs, agent commissions, or closing costs come out of your side of the deal.

Step 1: After-repair value

The after-repair value is what your house would sell for on the open market once it is fully updated, not what it is worth today. A buyer finds it by pulling recent sales of similar, renovated homes near you, the same comparable sales an appraiser or agent would use.

In Southern California this number swings hard by neighborhood. A fixed-up three-bedroom in the South Bay carries a very different value than the same floor plan inland, even when the houses look identical. The offer follows the local comparable sales, not a statewide average.

Step 2: Subtract the repairs

Next comes an honest estimate of what it costs to bring the house from its current condition up to that after-repair value. Roof, foundation, plumbing, electrical, kitchens, baths, flooring, paint, and anything a lender's appraiser would flag all go on the list.

This is the step that makes a cash sale make sense when a home needs work. You do not pay for these repairs, front the money, or manage the contractors. The cost is carried by the buyer, so it is subtracted from the offer instead of coming out of your pocket. If your home needs major repairs, this is usually where a cash sale beats listing.

Step 3: Subtract the resale and holding costs

A cash buyer takes on every cost you would normally pay an agent to manage, plus the cost of owning the home while it is repaired and resold. That includes agent commissions and closing costs on the eventual resale, property taxes, insurance, utilities, and loan interest for the months the project runs.

These are real, predictable numbers, and they are the reason an offer is not simply market value minus repairs. The buyer has to resell the home too, and that resale carries its own costs.

Step 4: Subtract the buyer's margin

Finally, the buyer builds in a margin. It covers their profit and the risk that repairs run over, the market shifts, or the resale takes longer than planned. A fair local buyer keeps this margin reasonable, because the offer still has to be one you would say yes to. A lowball offer is usually just an oversized margin dressed up as a cash discount.

A worked example

Here is an illustrative example for a tired but solid three-bedroom in the South Bay. The numbers are realistic for the area, but every property is different, so treat this as a model rather than a quote.

Illustrative South Bay example

A dated 3-bed, 2-bath that needs a full cosmetic update plus some systems work.

After-repair value (ARV)
$780,000
− Repairs to reach ARV
$90,000
− Resale costs (about 8% of ARV)
$62,000
− Holding costs (about 5 months)
$18,000
− Buyer's margin (about 10% of ARV)
$78,000
= Cash offer
$532,000

Illustrative only. Your offer depends on your home's condition, location, and current comparable sales.

Why a lower number can still leave you with more

On paper, listing this same house with an agent might net more, but only if you can front the ninety thousand in repairs, wait several months, live through the showings, and have the sale actually close. Many sellers cannot, or simply do not want to.

What the cash path looks like

Cash offer, as-is
$532,000
Repairs you pay upfront
$0
Out-of-pocket cost
$0
Time to close
as little as 7 days
Showings and financing risk
none

A retail sale can net more in the best case. A cash sale gives up some of that top-end price in exchange for speed, certainty, and nothing out of pocket.

How to tell a fair offer from a lowball

The number itself is not how you judge an offer. A fair buyer can walk you through every line above: the comparable sales behind your value, the repair scope, the resale costs, and the margin. A lowball buyer cannot, or will not.

  • Ask which recent comparable sales set your after-repair value.
  • Ask for the repair scope and rough costs they used.
  • Ask what the offer nets you after fees, since there are none on your side.
  • Ask whether the price can change after an inspection, and get the answer in writing.

At Genuine Home Offer, the offer we agree on is the amount you walk away with at closing. We will show you how we reached it, and you are free to compare it against listing or holding the property before you decide.

This guide is general information about how cash offers are calculated in California, not financial, tax, or legal advice. Your offer depends on your specific property and current market conditions.

Questions sellers ask about cash offers

Online estimates assume a market-ready home and ignore repairs, agent fees, and closing costs. A cash offer is built from your home's actual condition and nets out those costs, so the two numbers are measuring different things.

No. The offer is built from local comparable sales, an honest repair estimate, real resale and holding costs, and a reasonable margin. We show you each piece so you can see exactly how the number was reached.

Yes. You pay no agent commissions, no fees, and no repair costs, and we cover standard closing costs, so the number we agree on is what you receive at closing.

That is common and it does not disqualify you. The repair cost is built into the offer instead of falling on you, which is often why a cash sale makes more sense than listing a home that needs significant work.

See what your offer could look like.

Start with your property address. We will review the home, explain each line of the offer, and leave the decision to you. No fees, no repairs, no obligation.