What does a Hollywood Hills house that sells for $5.5 million leave on the table after the city's transfer tax? Less than one that sells for $5.4 million, by about $120,000.
The math comes from how Measure ULA, the City of Los Angeles "mansion tax," is built. It is not charged on the slice of the price above a threshold the way income tax brackets work. Once a sale crosses the line, the rate applies to the entire price. For anyone comparing homes in Laurel Canyon, Outpost Estates, Beachwood Canyon, Hollywood Dell, or Mount Olympus in the $5 million range, that single design choice explains more about where prices land than any median on a listing site.
The arithmetic at the line
The Los Angeles Office of Finance lists the current numbers. For transactions closing after June 30, 2026, sales above $5,400,000 and below $10,900,000 pay a 4% ULA tax. Sales at $10,900,000 or more pay 5.5%. Both sit on top of the city's base transfer tax of 0.45%, so the combined rates are 0.45%, 4.45%, and 5.95%.
Run a few prices through those rates and the shape of the problem becomes clear. The figures below are city transfer tax only, using the Office of Finance rates, and leave out commissions, county tax, and every other closing cost.
Sale price | Combined city rate | City transfer tax | Price minus city transfer tax |
|---|---|---|---|
$5,400,000 | 0.45% | $24,300 | $5,375,700 |
$5,500,000 | 4.45% | $244,750 | $5,255,250 |
$5,626,000 | 4.45% | about $250,360 | about $5,375,640 |
$6,000,000 | 4.45% | $267,000 | $5,733,000 |
A sale has to reach roughly $5.63 million before the after-tax figure catches up with a clean $5.4 million sale. That leaves a stretch of more than $200,000 in price where a higher number produces a smaller result. Whoever ends up carrying the tax in a given negotiation, the dead zone makes those prices awkward to agree on. The Pepperdine School of Public Policy report names the effect "notching." Large jumps in tax at a fixed threshold, applied to the full value, mean "relatively small changes in negotiated sale price can produce very large differences in total taxes owed."
A second, smaller notch sits at the upper tier. At $10.9 million the combined rate goes from 4.45% to 5.95%, which on its own adds about $163,000 to the city tax compared with a sale just under the mark.
Where sales pile up
If the arithmetic really shapes behavior, sale prices should bunch just below the threshold and thin out just above it. The Pepperdine report, prepared with Beacon Economics, found that pattern. In fiscal year 2023, before ULA took effect, transaction values above roughly $4 million in the City of Los Angeles followed much the same distribution as the rest of Los Angeles County. In fiscal year 2024, city sales became "increasingly concentrated just below the applicable ULA threshold, particularly near the $5 million cutoff," with fewer transactions above it. The rest of the county showed no such clustering.
The report estimates about 1,004 fewer high-value transactions than its model predicted from January 2024 through March 2026. Its authors say plainly that this number cannot separate sales repriced below the cutoff from sales delayed, moved elsewhere, or never made. The Greater Los Angeles Association of Realtors and the Arthur N. Rupe Foundation supported the research, and the authors state that the design and conclusions were their own. An earlier UCLA Lewis Center analysis from April 2025 reached a similar direction by different methods, estimating a 49% to 55% drop in above-threshold transactions during ULA's first 20 months.
The pattern still shows up in current activity. The Real Deal reported on October 14, 2026 that 11 listings asking between $4 million and just under $5 million made up nearly half of all signed luxury contracts in Los Angeles County the week before, with the Hollywood Hills among the areas represented. The same week, the county had 24 contracts at $4 million and above, down from 29 a year earlier. That tally covers the whole county, so it does not separate the threshold from everything else moving the market. Still, a strong lower-luxury band fits what the tax design would predict.
What the notch does to the hills specifically
Above-threshold sales in the Hollywood Hills ZIP codes were already rare, which leaves each one carrying a lot of weight. The city's open dataset on ULA revenue records transfers above the threshold by ZIP code for every property type, not only homes. In ZIP 90068, which takes in much of the hillside east of Laurel Canyon, the monthly counts recorded for fiscal 2026 run from one to four transfers. The dataset was last updated June 9, 2026, so it does not yet cover the months under the new $5.4 million threshold.
With that few sales, a seller whose home would reasonably price in the low $5 millions has a few options. One is to price under the line. Another is to price well clear of it. A third is to wait. The Real Deal reported in July 2026 that a luxury builder linked a shift toward remodeling partly to homeowners avoiding ULA, and that an agent described owners delaying sales. That account came from interviews, not a sales study. If some owners remodel instead of listing, fewer homes reach the market in the price band where a buyer would expect the most choice.
For a buyer, that changes how to read a list price. In this market, $5.395 million is not an arbitrary number. It may reflect a seller choosing the tax-free side of the line over a higher sticker price, so a counteroffer that pushes above the threshold changes the tax picture for both sides. A home listed around $5.5 million sits in the zone where a sale at that price gives less after tax than a sale at $5.4 million, which puts unusual pressure on the negotiation from both directions.
The city line matters as much as the price line
ULA applies to property conveyed within City of Los Angeles limits. When a parcel sits partly inside the city, the Office of Finance taxes it in proportion to the value or square footage inside the boundary. The hills meet other jurisdictions along their western edge, and the tax treatment changes at the boundary. The City of West Hollywood states that it has no additional property transfer tax, and that its rate is $1.10 per $1,000 as set by municipal code and Los Angeles County. Two homes with similar views and prices can carry very different transfer-tax bills depending on which side of a municipal boundary the parcel sits on. A ZIP code does not settle that question, because ZIP codes and city limits do not line up.
The line moves, and the November ballot leaves it in place
The threshold is not fixed. The Office of Finance says it adjusts every year using the Bureau of Labor Statistics Chained CPI, and the $5.4 million and $10.9 million figures apply to closings after June 30, 2026. Some coverage this month still uses $5.3 million and $10.6 million, so a seller or buyer working from an older number could misjudge which side of the line a price falls on.
The tax itself has held up so far:
- The courts. On December 15, 2025, the California Court of Appeal affirmed the dismissal of the consolidated challenges to ULA.
- The statewide repeal. The Howard Jarvis Taxpayers Association measure that would have revoked taxes like ULA was pulled from the November ballot after a deal in Sacramento, LAist reported on June 26, 2026.
- The city carveout. The Los Angeles City Council voted 14 to 0 on July 1, 2026 to shelve a proposed apartment-building exemption, according to LAist.
- The November 3 ballot. Proposition 43 would require a two-thirds vote, instead of a simple majority, for voter-proposed local special taxes starting January 1, 2027. CalMatters reports that it does not apply retroactively to the mansion tax. The city ballot's Proposition TE is a narrow transfer-tax exemption for victims of the January 2025 fire disaster, not a general repeal.
Whatever happens on November 3, the $5.4 million line will still apply to Hollywood Hills closings when escrows open in November.
Quick answers
Does the 4% apply only to the amount over $5.4 million? No. According to the Office of Finance rate table, a sale above $5,400,000 is taxed at the combined 4.45% on its full value.
Which threshold applies to my sale? The Office of Finance ties the $5.4 million and $10.9 million thresholds to transactions closing after June 30, 2026. The closing date is what counts.
Is every Hollywood Hills address subject to ULA? Only property inside City of Los Angeles limits, with parcels that straddle the boundary taxed proportionally. West Hollywood states it adds no city transfer tax beyond the county rate.
This post is general information about how the tax is structured, not legal, tax, or financial advice. Please confirm how it applies to your own sale or purchase with a qualified tax professional or attorney.
If you're pricing a hillside home anywhere near $5.4 million, or weighing an offer on one, I'd be glad to go through the numbers on your specific property with you before a price goes on the market or into a counteroffer. Cassandra Hepburn is here when you're ready. Let's Connect.
