There is a moment in almost every listing appointment where the conversation stops being about the house. The seller has a number in their head. It is usually the sale price minus the mortgage payoff, and it is usually wrong by more than they expect.
That gap is the seller net sheet, and I would rather you see it at the beginning than at the closing table. Here is what actually comes out of a San Mateo County sale, which pieces are negotiable, and the two line items that catch Peninsula sellers most often.
Transfer Tax Is Two Taxes Here, Not One
Start with the one people miss. San Mateo County charges a documentary transfer tax of 55 cents per $500 of value, which works out to $1.10 for every $1,000. That applies countywide. On a $2,000,000 sale it is $2,200.
That is not the whole story. The County Recorder notes that property inside the city limits of the City of San Mateo carries an additional city conveyance tax on top of the county rate. Under the city’s municipal code, as amended by the measure voters passed in 2022, that city tax is one half of one percent of value for transfers under $10 million, and one and one half percent at $10 million and above.
Run it as an illustration. On a $2,000,000 sale inside the City of San Mateo, the county tax is $2,200 and the city tax is $10,000, so $12,200 rather than $2,200. The same $2,000,000 house a few minutes away in Burlingame, Belmont or San Carlos carries only the county piece. That is a five figure swing driven by which side of a city line the property sits on, and I have watched it land on a closing statement as a genuine surprise.
Two things to hold onto. Who pays transfer tax is customary rather than statutory, so it is negotiable and it does get negotiated. And verify the rate for your specific city before relying on any number, including this one. City rates change by ballot measure.
Here’s how I help: before we set a price, I build the net sheet for your actual address, with the transfer tax for your actual city, so the number you are deciding on is the number you keep rather than the number on the sign.
Commission, and the Part That Changed
Commission is the largest line on almost every seller’s statement, and it is worth saying plainly that it is negotiable and always has been. What changed recently is the buyer’s side. Compensation to a buyer’s agent is no longer advertised on the MLS, and whether a seller offers any is now an explicit negotiation rather than a default.
That is a real decision with a real trade off, and it deserves a conversation rather than a checkbox. Make it on purpose, with the effect on your buyer pool understood, rather than discovering it in the paperwork.
The Escrow, Title and County Fees Nobody Quotes You
Individually small, collectively meaningful. Expect some version of all of these on a San Mateo County closing statement:
- Escrow fee, split by local custom and negotiable like everything else.
- Title insurance, with the owner’s policy customarily a seller cost in our area.
- County recording fees on the deed and reconveyance.
- Natural hazard disclosure report, standard practice on California sales.
- HOA document fees if there is an association. Set by the management company, not negotiable with your buyer.
- Prorated property taxes through closing, which surprises anyone who paid an installment recently.
The Credits, Which Are Where the Real Money Moves
Here is the line that actually swings a Peninsula net sheet, and it never appears on a generic closing cost calculator: buyer credits negotiated during the inspection period.
A roof concern, a sewer lateral, an unpermitted addition, deferred maintenance nobody has looked at since 2009. These come out of your proceeds, and they get negotiated when your leverage is lowest, after you are in contract and the buyer knows you are counting on this sale to close.
That is exactly why I push pre listing inspections here. Finding an issue before the market does means you decide whether to fix it, disclose it, or price it. Finding it during escrow means the buyer decides.
Here’s how I help: I order inspections before we launch and we go through them together, choosing which items to handle and which to disclose. That single move protects more of your net than any pricing strategy I know.
Frequently Asked Questions
Q: How much is transfer tax in San Mateo County?
The county documentary transfer tax is 55 cents per $500 of value, or $1.10 per $1,000. Property inside the City of San Mateo also carries an additional city conveyance tax, currently one half of one percent under $10 million and one and one half percent at $10 million and above. Verify the current rate for your city before relying on it.
Q: Who pays the transfer tax, the buyer or the seller?
It is customary in our area for the seller to pay it, but it is not required by statute. It is a negotiable term of the contract, and in some deals it moves.
Q: What is a seller net sheet?
An itemized estimate of what you actually walk away with: sale price, minus payoff, commission, transfer taxes, escrow and title fees, county fees, prorated property taxes, and any credits negotiated with the buyer. You should have one before you set a list price.
Q: Can I reduce my closing costs as a seller?
Some of it. Commission is negotiable, escrow allocation is negotiable, and buyer credits are absolutely negotiable if you have handled inspections up front. The county transfer tax is not negotiable with the county, though who pays it can be negotiated with your buyer.
Want to See Your Actual Number Before You List?
A net sheet takes me about twenty minutes to build and it changes almost every seller conversation I have. It tells you whether the move you are planning actually works, and it usually tells you where the prep money should and should not go.
Start with a free Peninsula home valuation so we have a real price to work from, or book a conversation and bring your address. If you are also weighing what to spend before listing, my piece on which pre sale improvements actually pay on the Peninsula is the companion to this one, and my guide to selling on the SF Peninsula covers the rest of the process.
About the Author:
I’m Mark Tauber, a real estate broker based in Burlingame with 24+ years of Peninsula experience. Top 9% of Coldwell Banker agents internationally. I build a net sheet for every seller before we set a price, because the number you keep is the only one that matters. Reach me at (650) 576-9565.
This article is general information about how San Mateo County sales are customarily structured, not tax or legal advice. Confirm rates and terms for your specific property with your agent, escrow officer and tax professional.
