How Jacksonville Cash Buyers Calculate Offers: The Real Math Behind the Number

“How did you come up with that number?”

It is the first question almost every seller asks me, and it is a fair one. When I make a cash offer on a house in Jacksonville, I am not pulling a number out of thin air. There is a real formula behind it, and I am going to walk you through every piece of it.

I am Jesse Wyatt. I have been buying houses for cash in Northeast Florida for over a decade. I believe sellers deserve to understand exactly how their offer was calculated. No black box, no mystery. Just math.

The Basic Formula

Every experienced cash buyer in Jacksonville uses some version of this formula:

Offer = (After Repair Value x Target Margin) – Repair Costs – Holding Costs – Closing Costs

Let me break down each piece.

After Repair Value (ARV)

ARV is what the property would sell for on the open market after it is fully repaired and updated. This is the starting point for everything.

To determine ARV, I look at comparable sales (comps) in the immediate area. Not just any comps. I am looking for:

Properties within a half mile, preferably closer
Similar square footage (within 200 to 300 square feet)
Similar bed and bath count
Similar lot size and property type
Sales within the last 6 months (in Jacksonville’s market, I prefer 3 months)
Properties in similar condition to what yours would be after renovation

For example, if three renovated 3-bedroom, 2-bathroom homes within a quarter mile of yours sold for $285,000, $292,000, and $278,000 in the last four months, your ARV is probably around $285,000.

This is the number everything else is measured against. If the ARV is wrong, the whole offer is wrong. That is why I spend the most time getting this right.

Repair Costs

This is where most sellers are surprised. What looks like “a little cosmetic work” to an untrained eye is often $40,000 to $80,000 in actual contractor costs.

When I walk through a property, I am estimating:

Structural and major systems:

Roof replacement: $8,000 to $15,000 in Jacksonville
HVAC replacement: $5,000 to $9,000
Electrical panel upgrade: $2,500 to $4,000
Plumbing repiping: $4,000 to $8,000
Foundation repair: $5,000 to $20,000+

Interior renovation:

Full kitchen remodel: $12,000 to $25,000
Bathroom remodel (each): $6,000 to $12,000
Flooring throughout: $5,000 to $10,000
Interior paint: $3,000 to $6,000
Drywall repair: $1,500 to $4,000

Exterior:

Siding or stucco repair: $3,000 to $8,000
Landscaping and curb appeal: $2,000 to $5,000
Fence: $3,000 to $6,000
Driveway: $3,000 to $7,000

I am not guessing at these numbers. I have done enough renovations in Jacksonville to know what things cost with local contractors at current prices. And I always add a 10 to 15 percent contingency because there are always surprises once walls come open.

Holding Costs

This is the piece most sellers never think about, but it is real money. From the day I buy your house to the day I sell it, I am paying:

Property taxes (Duval County taxes on a $285,000 property run roughly $3,500 to $4,500 per year)
Insurance ($1,500 to $3,000 per year for a vacant renovation property)
Utilities during renovation ($200 to $400 per month)
Financing costs (if I am using a hard money loan, that is 10 to 12 percent annual interest)
HOA fees if applicable

On a typical 6-month project, holding costs run $8,000 to $15,000. That comes directly off the offer.

Closing Costs (My Side)

When I buy your house, I pay closing costs. When I sell it after renovation, I pay closing costs again, plus a real estate agent commission (typically 5 to 6 percent). On a $285,000 resale, that is $17,000 to $20,000 in selling costs alone.

Profit Margin

Here is the part some sellers struggle with, so let me be straightforward. I am running a business. I need to make a profit that justifies the risk I am taking.

When I buy your house, I am taking on all the risk. If the roof costs twice what I estimated, that is my problem. If the market drops 10 percent during renovation, that is my problem. If I find termite damage behind the walls, that is my problem.

My target margin is typically 15 to 20 percent of the ARV. On a $285,000 ARV, that is $43,000 to $57,000. That might sound like a lot, but consider that one bad surprise (foundation issues, mold remediation, a market dip) can wipe out half of it.

A Real Example: The Math in Action

Let me walk through a realistic Jacksonville example.

The property: 3 bed, 2 bath, 1,400 sq ft in the 32210 area. Built in 1978. Original kitchen and bathrooms. Roof is 18 years old. AC works but is aging. Needs cosmetic updating throughout.

Step 1: ARV. Three comparable renovated homes nearby sold for $280,000, $289,000, and $275,000. ARV = $282,000.

Step 2: Repair estimate.

Roof replacement: $11,000
Kitchen remodel: $16,000
Two bathroom remodels: $16,000
Flooring: $7,000
Interior paint: $4,000
HVAC (preventative replacement): $7,000
Landscaping and exterior: $3,000
Contingency (12%): $7,700
Total repairs: $71,700

Step 3: Holding costs (6 months).

Taxes: $2,000
Insurance: $1,200
Utilities: $1,800
Financing: $6,000
Total holding: $11,000

Step 4: My closing and selling costs.

Purchase closing: $2,000
Resale closing + agent commission (6%): $19,000
Total transaction costs: $21,000

Step 5: Target profit margin (17% of ARV).

$282,000 x 0.17 = $48,000

The offer:

$282,000 (ARV)
– $71,700 (repairs)
– $11,000 (holding)
– $21,000 (transaction costs)
– $48,000 (profit margin)
= $130,300 cash offer

That is the math. Every dollar is accounted for.

Why Cash Offers Are Lower Than Retail (And Why That Is Fair)

I sometimes hear: “But my house would sell for $282,000 on the market!”

You are right. It would, after $72,000 in renovations, 6 months of holding costs, and paying an agent $17,000. If you have the time, money, and energy to do all of that yourself, you absolutely should. You will make more money.

But most sellers who call me do not have $72,000 sitting around for renovations. They do not want to manage contractors for six months. They do not want to pay a mortgage, taxes, and insurance on an empty house while it is being renovated. They want to sell now, as-is, and move on with their lives.

What I offer is certainty and speed in exchange for that margin. You get a firm cash offer, no repairs, no showings, no waiting for buyer financing to fall through, and a closing date you choose. That convenience has a cost, and the math above shows you exactly what it is.

What Makes an Offer Go Up or Down

Not every house gets the same treatment. Here is what pushes an offer higher or lower:

Higher offer when:

The house needs mostly cosmetic work (paint, flooring, fixtures)
The roof and HVAC are in good shape
The neighborhood has strong, rising comps
The property is in a high-demand area (close to beaches, downtown, good schools)
Title is clean with no complications

Lower offer when:

Major systems need replacement (roof, HVAC, plumbing, electrical)
There is structural damage or foundation issues
The property has code violations or liens to resolve
The neighborhood comps are flat or declining
There are title complications (probate, heir disputes, unclear ownership)
The property has been vacant and vandalized

I will tell you which factors are affecting your specific offer. Just ask.

Red Flags: How to Spot a Dishonest Cash Buyer

Since I am being transparent about my math, let me also tell you how to spot buyers who are not:

They will not explain their offer. If a buyer cannot or will not walk you through how they arrived at their number, that is a problem. I just showed you my entire formula. Any legitimate buyer should be able to do the same.

The offer seems too high. If someone offers you close to retail price for an as-is property, be suspicious. They are either planning to renegotiate after inspection (a classic bait and switch) or they do not know what they are doing. Either way, it will not end well.

They ask for money upfront. A real cash buyer never asks you for application fees, inspection fees, or any money out of pocket. Ever.

They pressure you to sign immediately. I will give you a firm offer and let you think about it. High-pressure tactics are a sign the buyer does not want you to get a second opinion.

They cannot provide proof of funds. Any serious cash buyer can show you a bank statement or a letter from their lender proving they have the money to close. Ask for it.

Frequently Asked Questions

Will you show me the comparable sales you used?

Absolutely. I am happy to share the comps I used to determine ARV. If you disagree with my selections, I want to hear why. Sometimes sellers know about neighborhood nuances I might miss.

What if I get a higher offer from another cash buyer?

Get it in writing, and make sure it is actually a cash offer with proof of funds. Then call me. I will either match it if the math works or tell you honestly to take the other offer. I would rather lose a deal than overpay and cut corners on the renovation.

Do you ever renegotiate after making an offer?

My initial offer is based on what I can see. If the inspection reveals something I could not see during the walkthrough (like hidden termite damage or a cracked slab), I may need to adjust. But I will show you exactly what was found and how it affects the math. I do not use renegotiation as a strategy.

How fast can you actually close?

I can close in as little as 7 days if the title is clean. Most closings take 14 to 21 days to allow for title search and document preparation. If you need more time, that is fine too.

Do I pay any fees or closing costs?

No. I cover all closing costs on the purchase. The number I offer is the number you receive (minus any mortgage payoff or liens, which are handled at closing).

The Bottom Line

There is no mystery to how cash offers work. It is ARV minus repairs minus holding costs minus transaction costs minus a fair profit margin. Every dollar has a reason.

I shared all of this because I believe informed sellers make better decisions, even if that decision is not to sell to me. If you understand the math and my offer still makes sense for your situation, then we are a good fit. If it does not, I will tell you that too.

If you want to see what the math looks like for your specific property, reach out. I will walk through it with you, no obligation.