How this instrument works
Real estate commission is a percentage of the sale price, not a flat fee set by law or trade association rule — the seller and the listing brokerage agree to a rate in writing before the home ever reaches market, and that rate is multiplied against whatever the home eventually sells for. Because commission scales with price rather than effort, a $2 million sale and a $200,000 sale can involve nearly identical work from an agent yet generate a tenfold difference in pay.
The dollar figure this instrument returns is gross and undivided — calculated before the total splits between the listing brokerage and the buyer's brokerage, and before each brokerage splits its half again with the individual agent. It also sits downstream of a real shift in how buyer-agent pay works: since the National Association of Realtors settlement took effect in August 2024, offers of buyer-side compensation no longer appear on the MLS listing itself, and buyers typically sign a written agreement with their own agent spelling out how that agent gets paid, separate from anything the seller agrees to cover.
What the formula leaves out matters as much as what it includes. It does not know the mortgage balance the seller still owes, the property taxes prorated to the closing date, transfer tax, title insurance, or the escrow and attorney fees that also sit on the closing statement — commission is one line among several, and a seller's actual net check is always smaller than sale price minus this number alone.
- Enter the agreed or expected sale price into Sale price, $ — the contract price, not the original list price if the two differ.
- Set Commission rate, % to the percentage written into the listing agreement; 5 and 6 are common but the number is negotiated home by home.
- Read Total commission, $ for the gross dollar payout this generates, before any split between brokerages or agents.
- Raise or lower the rate to see how much a single percentage point moves the dollar figure on this sale price.
Worked example — a $400,000 sale at 6%
A home sells for $400,000 with a 6% commission rate written into the listing agreement — the traditional US full-service standard, though rates have moved lower and more negotiable since the 2024 NAR settlement. Put 400000 into Sale price, $ and 6 into Commission rate, % and Total commission, $ reads $24,000.00 — six cents of every hundred dollars the home sold for.
That $24,000 does not go to one person. A common arrangement puts half toward the brokerage that listed the home and half toward the brokerage that brought the buyer — $12,000 each — and each brokerage then splits its half again with the agent who did the work, commonly close to even at the start of a career and rising toward 80/20 or better after years of production. None of that split changes the $24,000 total; it only changes who receives which slice, and the whole figure is subtracted from the seller's proceeds at the closing table rather than invoiced separately.
Questions
Who pays the real estate commission?
The seller does, in the traditional US model — the fee is subtracted from the sale proceeds at closing rather than billed to either party directly. Since the August 2024 NAR settlement, offering to cover the buyer's agent is no longer required or advertised on the MLS; a seller can still agree to pay it as a negotiating point, but that offer now sits in a separate document instead of being folded into the listing automatically.
How is the total commission split between the two agents?
Typically it is divided once between the listing brokerage and the buyer's brokerage — an even half-and-half split is common, though the exact division is whatever the listing agreement and any cooperating-broker agreement state. Each brokerage then splits its half again with the individual agent, often on a sliding scale that favors the agent more as their yearly production grows. The figure this instrument returns is the whole payout before either split happens.
Can the commission rate be negotiated?
Yes — commission rates are not set by law, trade association rule, or a standard MLS field; they are agreed in writing between a seller and their listing brokerage on a home-by-home basis. Rates commonly land between 4.5% and 6% of the sale price depending on the market and how much negotiating the seller does, and flat-fee or discount brokerages offer lower fixed fees for listing-only service.
Does the commission come out of my sale price or my equity?
It is calculated on the sale price, not on what the seller actually nets from the transaction. A seller who owes most of the sale price to a mortgage lender still owes the full commission on that gross figure — so on a highly leveraged sale, the commission can consume a large share of the seller's true equity gain even though it is a modest percentage of the price.
Does this total include closing costs?
No. Commission is one line on a much longer closing statement that also includes the mortgage payoff, prorated property tax, transfer tax or stamp duty, title insurance, and escrow or attorney fees, all of which vary by state and county. This instrument isolates the commission arithmetic; add the rest from an actual closing disclosure or settlement statement to see true net proceeds.
Why did commission rates come down after the 2024 NAR settlement?
The settlement ended the practice of listing brokers advertising buyer-agent compensation on the MLS and required buyers to sign a written agreement with their own agent before touring homes, which exposed buyer-side fees to direct negotiation for the first time in most transactions. Total blended rates have edged down in many markets since, though the shift plays out differently place to place, and the underlying arithmetic here — rate times sale price — has not changed at all.
References
Read this first: This instrument shows arithmetic, not advice. Real offers add fees, taxes and terms that vary by lender and place — verify the figures against your actual paperwork before deciding anything.