Net proceeds are what remain of the sale price after every charge the sale itself creates, and the calculation is a subtraction exercise that any homeowner can run on one page. Start with a realistic price. Subtract the commission, then seller closing costs, then the concessions a listed sale typically produces, then the carrying costs for the months the sale will take, then the mortgage payoff and any liens. What survives that sequence is the net, and on the research ledger for a 400,000 dollar Johns Island sale, what survives lands in the low 300,000s after a normal market cycle (Frontier Capitals, 2026).
The documented inputs are consistent across this research set. Commission runs 5 to 6 percent (National Association of Realtors, 2025). Seller closing costs run 1 to 2 percent. Inspection driven concessions on older Lowcountry homes run 8,000 to 25,000 dollars, and carrying costs across three to six months run 10,000 to 25,000 dollars (Frontier Capitals, 2026). This post assembles those inputs into a repeatable method, runs the two documented worked examples, and shows how the same method prices a direct off-market sale, where most of the subtraction lines never appear.

Key Findings
- Net proceeds equal the price minus commission, seller closing costs, concessions, carrying costs, mortgage payoff, and liens, in that order (Frontier Capitals, 2026).
- On a 400,000 dollar listed sale, the documented deductions total roughly 42,000 to 82,000 dollars before the mortgage payoff (Frontier Capitals, 2026).
- Commission is the largest single line at 20,000 to 24,000 dollars on a 400,000 dollar sale, with a measured national average combined rate of 5.44 percent (National Association of Realtors, 2025; Clever Real Estate, 2025).
- A documented comparison shows a 600,000 dollar direct offer netting more than a 640,000 dollar listing that nets roughly 595,000 dollars after costs and carrying expense (Frontier Capitals, 2026).
- The mortgage payoff figure comes from the servicer's payoff statement, not the monthly statement balance (U.S. Department of Housing and Urban Development, 2026).
What is step one: a price the market will actually pay?
Every net calculation fails or succeeds at its first line. A price drawn from a neighbor's asking price, or from an automated estimate that prices the house rather than the land, poisons every subtraction that follows. Anchor instead on sold evidence: recent sales and new construction in the ZIP are the published record a buyer will also be reading (Redfin, 2026). For an older island home, cross-check the house price against the land logic in the sample, where older homes averaged 35.3 percent of the comparable new build price (Frontier Capitals, 2026). A price that no buyer pool will pay is not a starting point. It is a delay with carrying costs attached.
Use two prices if the property could sell either way: a resident buyer price and a builder price. The calculation that follows is run separately for each, because the deduction stacks differ by path. Sellers who run only the listed version of the arithmetic routinely discover the direct version's advantage after they have already spent the listed version's costs.
What are steps two and three: commission and closing costs?
Step two removes the commission. Multiply the price by the rate you actually face: 5 to 6 percent is the typical Charleston market structure (National Association of Realtors, 2025), and 5.44 percent is the measured average combined commission across 2025 sales (Clever Real Estate, 2025). On 400,000 dollars, the line is 20,000 to 24,000 dollars. Remember the internal split while negotiating: the buyer agent share has run 2.40 to 2.42 percent in recent reporting (Redfin, 2025), and 37.4 percent of recent sellers negotiated the total (Redfin, 2025). A negotiated point on a 400,000 dollar sale is 4,000 dollars of net proceeds recovered.
Step three removes seller closing costs at 1 to 2 percent of the price: 4,000 to 8,000 dollars on the same 400,000 dollar sale. This line covers title work and title insurance, transfer charges, settlement, and prorations (American Land Title Association, 2026). Together, steps two and three are the percentage stack, and the documented summary is that they commonly exceed 30,000 dollars on a 400,000 dollar transaction and 40,000 dollars on a 650,000 dollar one (Frontier Capitals, 2026). Any net estimate that omits step three understates the cost of the listed path by thousands.

What are steps four and five: concessions and carrying costs?
Step four prices the inspection. On a listed sale of an older island home, buyers routinely extract 8,000 to 25,000 dollars in concessions and repair credits after inspection (Frontier Capitals, 2026). Choose a figure inside the band based on your home's honest condition, and be honest: choosing the bottom of the band for a house with a tired roof and an aging system is how net estimates become fiction. Sellers also carry a legal duty in this step's neighborhood, since the state disclosure statement must be completed fully and honestly before a contract forms (State of South Carolina, 2026). A disclosure problem discovered mid sale can cost more than the concession it was hiding.
Step five prices the calendar. Estimate the months from listing to closing, and charge the holding costs: mortgage or opportunity cost, insurance, taxes, utilities, and maintenance. The documented band across three to six months of market time is 10,000 to 25,000 dollars (Frontier Capitals, 2026). National sold homes have recently spent 46 days on market in early reporting, with later medians at 51 to 61 days (Redfin, 2026), and the full listed process for an older island home, with inspection rounds and a buyer mortgage timeline, typically runs 60 to 120 plus days. Price reductions belong in this step as a risk adjustment: about one in five sellers nationally cuts price, and a calculator who ignores that possibility is planning for the best case rather than the expected one.
Running the documented inputs on the 400,000 dollar example gives the range. Gentle case: 20,000 dollars commission, 4,000 dollars closing, 8,000 dollars concessions, 10,000 dollars carrying, totaling 42,000 dollars of deductions and a net near 358,000 dollars before payoff. Hard case: 24,000, 8,000, 25,000, and 25,000 dollars respectively, totaling 82,000 dollars and a net near 318,000 dollars. The documented summary, a net in the low 300,000s after a normal cycle, sits inside that range exactly where a normal cycle should (Frontier Capitals, 2026).
What are steps six and seven: the payoff, the liens, and the tax reserve?
Step six removes what the seller owes against the house. Request the payoff statement from the servicer early, because the payoff, calculated with interest to the payoff date under the standard settlement procedures, is always slightly above the statement balance (U.S. Department of Housing and Urban Development, 2026). The loan is satisfied from proceeds at closing, and the satisfaction is recorded with the county (Charleston County Register of Deeds, 2026). Check the same county record for liens and judgments against the property before a buyer's title search does, since every recorded lien is a subtraction waiting in this step.
Step seven reserves for tax. The gain above basis, after the Section 121 exclusion of 250,000 dollars for single filers and 500,000 dollars for joint filers who meet the ownership and use tests, is taxable (Internal Revenue Service, 2026). The tax is not deducted at closing, which tempts sellers to count it as kept money. A disciplined calculator reserves an estimated amount in this step, using a tax professional's figure, and treats the reserve as spent until the return says otherwise. Heirs can often skip the worry: a stepped up basis at the date of death value shrinks the taxable gain on a prompt sale toward zero (Internal Revenue Service, 2026).
The documented 650,000 dollar scale comparison shows the method deciding a real choice. A 640,000 dollar listing on that scale nets roughly 595,000 dollars after the percentage stack and months of carrying expense (Frontier Capitals, 2026). A 600,000 dollar direct offer, carrying almost none of those deductions, nets more than the higher listing. The gross prices say the listing wins by 40,000 dollars. The net calculation says the direct offer wins outright. This inversion is the single most common surprise the method produces, and it is worked from the cost side in how much it costs to sell a house in Johns Island.

How does the calculation change for a direct off-market sale?
Run the same seven steps and watch most of them empty out. Step one still needs a real price, now from builder or cash buyer offers rather than listings. Step two is zero: no commission is charged. Step three largely disappears, because the seller side closing cost burden is removed in the direct structure. Step four is zero, since the house sells as is with no inspection concession round. Step five shrinks to days, because a direct sale can close in 7 to 21 days, or stretches only if the seller chooses a delayed closing or leaseback style arrangement for personal reasons. Steps six and seven remain exactly as they were, because debts and taxes follow the seller on every path.
A numerical pass shows the size of the difference. Take a 400,000 dollar direct offer on an island home with no mortgage. Steps two through five remove almost nothing, so the net sits just under 400,000 dollars before the tax reserve. The same house listed at the same 400,000 dollars nets somewhere between roughly 318,000 and 358,000 dollars before payoff, per the range worked in step five. The direct offer would have to fall tens of thousands of dollars below the list price before the listed path caught up, and that break even gap, computable for any pair of offers in about a minute, is the number a seller should carry into every negotiation.
Verification belongs in the direct calculation as a quality check on step one. A direct price is only real if the buyer is funded: proof of funds in the buyer name dated within the last 30 days, earnest money of typically 1 percent or more forfeited on a walk away, and recorded deeds in the buyer entity name in the county record (Charleston County Register of Deeds, 2026). An unverified high offer should be entered into the worksheet at a steep discount or not entered at all, because a net calculated on money that never arrives is worse than no calculation.
The remaining benefits do not enter the arithmetic but decide real sales anyway. Privacy is complete: zero showings, zero open houses, no marketing period, and no sign, which on Johns Island means the family's business stays the family's. And the certainty profile differs: a verified cash buyer's number is a funded figure, while a listed net is an estimate exposed to months of market weather. Sellers comparing the two paths should compare a funded net against an expected net, and should discount the expected one for risk the way the hard case in step five does. The closing lines that vanish are itemized in what closing costs Johns Island home sellers typically pay, and the tax reserve step is explained in whether Johns Island homeowners pay capital gains taxes when selling.
Methodology and limitations
The method and its figures come from the research compiled for this report: the cost ledger built on a 400,000 dollar sale, the comparison at the 650,000 dollar scale, and the island sample of 27 pre-1981 homes in ZIP 29455, 12 of them builder acquisitions, with a 44.4 percent demand rate and a 35.3 percent average price ratio (Frontier Capitals, 2026). The sample is not a census of the island, no property was inspected for this post, and no title search was run on any parcel.
Net proceeds are irreducibly personal at steps six and seven. Two sellers at the same price with the same costs keep different amounts because their mortgage balances, liens, basis, and filing status differ, and no published table can supply those figures. The bands used in steps two through five are documented ranges, not quotes: a specific seller's commission is negotiable, a specific house's concessions depend on its condition, and a specific sale's carrying time depends on its street and season. The method's value is that it forces every one of those numbers onto one page, in the open, before the seller commits to a path.
Conclusion
Calculating net proceeds is seven subtractions performed in order: price, commission, closing costs, concessions, carrying costs, payoff and liens, and a tax reserve. Run honestly on a 400,000 dollar listed sale, the method lands in the low 300,000s before the mortgage, exactly as the documented ledger says. Run on a direct sale, the same method shows most of the stack missing, which is how a 600,000 dollar offer can beat a 640,000 dollar listing. Sellers who do this arithmetic before choosing a path are choosing with their eyes open. Frontier Capitals sources off-market island homes to builders and can run the calculation with a homeowner at 401-219-4207 or through the contact page. If you ran your own seven steps tonight, which line in the stack would surprise you most?
Frequently Asked Questions
What is the quickest version of the calculation?
Take the price, subtract 6 to 8 percent for the combined commission and closing cost stack, subtract a mid band concession and carrying allowance of about 25,000 dollars on a typical older home, then subtract the payoff. On a 400,000 dollar sale that shortcut lands near the documented low 300,000s outcome (Frontier Capitals, 2026). It is a screening tool, not a substitute for the full seven steps.
Why does my payoff figure keep changing?
The payoff is calculated with interest through the payoff date, so it grows slightly each day and always sits above the balance on your last statement (U.S. Department of Housing and Urban Development, 2026). Request the statement close to the closing date and build a small cushion into the calculation for the days between the quote and the closing.
Should I include a possible price reduction in my estimate?
As a risk line, yes. About one in five sellers nationally reduces price during the listing period (Redfin, 2026), and older island homes facing inspection findings are not immune. Sellers who model a modest reduction scenario alongside the asking price scenario make decisions that survive contact with the market.
Do liens I forgot about change the calculation?
They change the net, because recorded liens must be satisfied for clear title to pass, and they appear in the county record (Charleston County Register of Deeds, 2026). Finding them at step six of your own calculation, weeks before a buyer's title search, converts a closing crisis into a planned subtraction.
When should I run this calculation?
Before choosing a sales path, and again whenever an offer arrives. The first run tells you what each path is likely to leave you. Later runs, with a real price in step one and a real payoff in step six, tell you what a specific offer leaves you. Sellers who calculate only once, at the asking price they hoped for, end up negotiating against a fiction while the buyer negotiates against the actual settlement statement.
Can a lower offer really net more than a higher one?
The documented comparison says yes: a 600,000 dollar direct offer netted more than a 640,000 dollar listing that netted roughly 595,000 dollars after costs and carrying expense (Frontier Capitals, 2026). Gross price is a vanity figure. Net proceeds are the money, and the money is the only figure that spends.
Sources
- Frontier Capitals, 2026. 189 neighborhood builder acquisition sample: 27 homes sampled in 29455, 12 acquired by builders, average older home price 35.3 percent of new build. Market data. (Cited in the research post as the study; Frontier posts cite the study as Frontier Capitals, 2026.)
- Charleston County Register of Deeds, 2026. Recorded deeds, liens, plats, and judgment records for ZIP 29455. Official record.
- National Association of Realtors, 2025. Typical seller commission structures, Charleston market. Industry report.
- Redfin, 2026. Recently sold homes and new construction, ZIP code 29455, Johns Island SC. Market data.
- State of South Carolina, 2026. Code of Laws, Title 27, Chapter 50, Article 1: Residential Property Condition Disclosure Statement requirements. Official record.
- U.S. Department of Housing and Urban Development, 2026. Settlement and mortgage payoff procedures for residential closings. Government data.
- Internal Revenue Service, 2026. Sale of residence: real estate tax tips: ownership and use tests for the Section 121 exclusion. Government data.
- Redfin, 2025. Real estate commissions, May 2025. Market data.
- Clever Real Estate, 2025. Agent commission survey: average combined commission 5.44% in 2025. Industry report.
- American Land Title Association, 2026. Title insurance overview. Industry report.