Cross the line by one dollar and the city's cut jumps by roughly $400,000.
That is not a typo and it is not a worst-case scenario. It is arithmetic. A Santa Monica home that closes at $7,999,000 pays the city's second-tier transfer tax rate of 0.6 percent, or about $48,000. The same home closing one dollar higher, at $8,000,000, pays 5.6 percent on the entire sale price, not just the amount above the threshold. That is roughly $448,000 to the city instead of $48,000. The gap is not a rounding error. It is the difference between a normal closing cost and a number that changes how a seller thinks about the whole transaction.
This is Measure GS, Santa Monica's third-tier documentary transfer tax, and most of what gets written about it treats the $8 million line as fixed. It has not been fixed for a while, and this year it is less fixed than it has been since the tax took effect. A statewide ballot measure headed for November 2026 could cap local transfer taxes like this one at a fraction of a percent and start unwinding the ones that do not comply. A separate, narrower effort to exempt multifamily sales from the same tier has surfaced before and could resurface on the same ballot. For anyone with a Santa Monica property anywhere near that threshold, the question this year is not only where to price it. It is whether to close before the election changes the rules, or wait to see if the rules change in your favor.
How the tax actually works
Measure GS passed in November 2022 and took effect March 1, 2023, adding a third tier to Santa Monica's documentary transfer tax under Santa Monica Municipal Code Chapter 6.96. The structure looks simple until you notice what kind of tax it is.
| Sale price | City transfer tax rate | Tax on an $8 million sale at that rate |
|---|---|---|
| Under $5,000,000 | 0.3% ($3.00 per $1,000) | not applicable |
| $5,000,000 to $7,999,999.99 | 0.6% ($6.00 per $1,000) | roughly $48,000 |
| $8,000,000 and above | 5.6% ($56.00 per $1,000) | roughly $448,000 |
This is not a marginal tax bracket the way federal income tax works, where only the dollars above a threshold get taxed at the higher rate. It is a cliff. Once the sale price touches $8 million, the 5.6 percent rate applies to the full amount, not just the portion above the line. Add the standard county documentary transfer tax that applies everywhere in Los Angeles County, and the combined rate on an $8 million-plus Santa Monica sale lands close to 5.7 percent.
The measure was projected to raise about $50 million a year for schools, homelessness prevention, and affordable housing. It has not come close. In the year after it took effect, residential sales above the $8 million threshold were cut roughly in half, and commercial sales in the city fell from 18 to 5, according to reporting from CalMatters. The tax raised well under half of what the ballot language projected. Sellers responded to the cliff exactly the way the math predicts they would: by staying under it whenever they could.
The part most guides leave out
Here is where 2026 is different from every year since GS passed. The line itself is on the ballot.
A Howard Jarvis Taxpayers Association-backed measure, the Local Taxpayer Protection Act, has qualified for the November 2026 statewide ballot. It would cap local transfer taxes at 0.11 percent statewide, the same rate the county already charges, and it would require cities to bring existing higher transfer taxes into compliance within two years of the measure passing or see them invalidated. Santa Monica's Measure GS, Los Angeles's Measure ULA, and San Francisco's Proposition I are the three transfer taxes most directly named in the coverage of this fight, because all three set rates well above what the initiative would allow. San Francisco's own leadership is already moving to cut its version in half after watching it stall housing production and sales. That is the kind of signal that tends to matter to a ballot campaign.
Separately, and on a narrower track, a local Santa Monica initiative to exempt multifamily housing sales from the GS third tier failed to reach the 2024 ballot. Reporting on the city's 2026 election season notes that a similar carve-out could still surface in a future election, including this November. If it qualifies and passes, it would not touch single-family estate sales at all. It would create a split market where an apartment building crossing $8 million pays a different rate than a house crossing the same number, which is its own kind of planning problem for anyone who owns both types of property.
None of this guarantees an outcome. A statewide measure needs a simple majority in November, and even if it passes, the two-year compliance window means GS would not vanish the day after the election. But a seller weighing a listing this fall is no longer just deciding where to price relative to $8 million. They are deciding whether to lock in a sale under a known set of rules now, or hold and see whether the rules that make $8 million so expensive to cross are still there in twelve months.
What this means if you are anywhere near the line
For a Beverly Hills seller, none of this applies. Beverly Hills is its own incorporated city with its own tax structure and no equivalent third-tier transfer tax. For a seller in Venice or Mar Vista, the relevant tax is Los Angeles's Measure ULA, not Santa Monica's Measure GS, and the two have different thresholds, different rates, and different jurisdictions even though they sit blocks apart. Knowing which line applies to which address is not a small detail. It changes the closing math by hundreds of thousands of dollars depending on which side of a city boundary a property happens to sit.
For a Santa Monica seller sitting between roughly $7.5 million and $9 million, the practical questions this year are less about pricing strategy alone and more about sequencing:
If you list and go under contract before November, you are pricing against a known tax structure. The cliff is real, but at least it is predictable, and an agent can build a net sheet around it with confidence.
If you wait past November hoping the statewide measure passes, you are betting on an outcome, a compliance window, and a city response that has not been written yet. Even in the best case for a seller, GS would not disappear overnight. The two-year runway the statewide measure allows for compliance means Santa Monica would have time to adjust the ordinance rather than simply drop it.
If your property sits well above $8 million regardless of what happens with GS, the tax question matters less than it does for someone hovering right at the threshold, but the exemptions still matter. Measure GS exempts certain transfers to nonprofit affordable housing developers and community land trusts, along with categories already exempt under state and county transfer tax law, such as conveyances that confirm an existing community property interest or transfers where liens on the property equal or exceed its value. Attorneys who handle these transactions also caution against trying to split a sale into separate transfers of land and structure to duck under the threshold, since the city and the courts tend to look at the economic substance of a deal rather than how it is papered.
None of this changes the fundamental math on a straightforward sale. It does mean the conversation with your agent and your accountant this year needs to include a second variable most transfer tax guides skip: not just what you owe if you sell today, but what you might owe, or might not owe, if you wait for an election that could move the line itself.
A few questions worth asking directly
Is Measure GS a bracket tax, where only the amount above $8 million gets taxed at 5.6 percent? No. Once a sale reaches $8 million, the 5.6 percent rate applies to the entire sale price, not the portion above the threshold. That is what creates the cliff.
Does the tax apply to condos and multifamily buildings, or just single-family homes? It applies to all real property transfers within Santa Monica city limits above the threshold, residential and commercial alike, which is part of why a local carve-out limited to multifamily housing has been proposed separately from any change affecting single-family sales.
Could Measure GS actually be gone by the time I'm ready to sell? Not immediately, even in the most seller-favorable outcome. The statewide measure on the November 2026 ballot includes a two-year compliance window for cities to bring non-compliant local transfer taxes in line, so any change to GS would likely play out over time rather than at the ballot box overnight.
Does a property just outside Santa Monica pay this tax too? No. Measure GS only applies within Santa Monica city limits. A property in neighboring Los Angeles-jurisdiction areas like Venice or Mar Vista falls under Measure ULA instead, which has its own thresholds and rates.
If you are trying to figure out where your Santa Monica property sits relative to this threshold, or how the timing question plays out against your own plans, Smith & Berg Property Group can walk through the net sheet and the calendar with you before you commit to either.