The answer depends entirely on where your property sits and how it is classified, and getting it wrong is one of the most expensive mistakes a self-managing owner can make. As of August 2026, an owner of a one to four unit rental in Los Angeles or Ventura County could be legally bound by any of three different ceilings: the statewide cap of 8.7 percent under the Tenant Protection Act, also known as AB 1482, the City of Los Angeles’s own Rent Stabilization Ordinance cap of 3 percent, or the City of Oxnard’s local rent stabilization cap of 4 percent. A rent increase notice served above the ceiling that actually governs a given unit is unenforceable, and if a tenant later withholds the disputed portion and is served with a notice to pay or quit, the owner can find themselves defending what looks very much like a wrongful eviction. Boutique Property Management manages residential properties of one to four units throughout Los Angeles and Ventura County, and this is one of the compliance questions its clients ask most often heading into late summer, when many annual leases come up for renewal.
What is the statewide rent cap for California landlords in 2026?
Under AB 1482, annual rent increases are limited to 5 percent plus the change in the regional Consumer Price Index over the preceding year, or 10 percent, whichever is lower. For the twelve month period running from August 1, 2026 through July 31, 2027, that formula produces a maximum allowable increase of 8.7 percent for the Los Angeles-Long Beach-Anaheim Consumer Price Index region, a figure confirmed by the California Apartment Association and by regional apartment associations covering Los Angeles, Orange, Riverside, San Bernardino, and Ventura counties. That is a modest increase over the 8.0 percent ceiling that applied for the prior twelve month period ending July 31, 2026. An owner may serve more than one increase within a rolling twelve month period as long as the combined total stays within the cap, but any increase, or combination of increases, exceeding 10 percent in that period requires 90 days’ written notice rather than the standard 30 days required under Civil Code section 1946.1.
Does AB 1482 actually apply to your single-family rental or duplex?
For many of the smaller properties common in Los Angeles and Ventura County, AB 1482’s rent cap and just cause eviction rules do not apply at all, but only if the owner has taken one specific step. The law exempts single-family homes and condominiums owned by an individual, a family trust, or an LLC whose members are entirely natural persons, and it exempts a duplex where the owner occupies one unit as a primary residence, though that exemption ends the day the owner moves out. The single-family exemption depends on more than ownership structure, however. California Civil Code section 1946.2(e)(8) requires the owner to deliver written notice of the exemption to the tenant, either within the lease itself or as a separate addendum, for each tenancy. Without that written notice, the property does not qualify as exempt even when the ownership structure otherwise fits, which is a detail that trips up a surprising number of self-managing owners who assume the exemption applies automatically.
What changed under the Los Angeles Rent Stabilization Ordinance for 2026?
The Los Angeles City Council substantially reduced the formula used to calculate Rent Stabilization Ordinance increases this year, and the change is already in effect for the current cycle. Under an ordinance adopted January 24, 2026, the RSO calculation moved from 100 percent of the applicable Consumer Price Index to 90 percent of that index, and the allowable range narrowed from a 3 to 8 percent band down to a 1 to 4 percent band. According to the Los Angeles Housing Department’s own posted bulletin, the calculated allowable increase for the current cycle, running July 1, 2026 through June 30, 2027, is exactly 3 percent, well below the 8.7 percent statewide ceiling described above. Effective February 2, 2026, the city also eliminated two add-ons landlords had previously been able to layer onto an RSO increase: the additional 1 percent allowed for properties with master-metered utilities, and the increase tied to dependent adult occupants. Any increase notice built around either of those old provisions is no longer valid and needs to be recalculated using the current 3 percent figure alone. The RSO generally covers units in a building of two or more units that received its certificate of occupancy on or before October 1, 1978, which means it can reach a duplex, triplex, or fourplex that an owner assumed was too small to be rent-stabilized, while a standalone single-family home remains excluded from the RSO regardless of its age.
Which cap wins when a property could fall under both AB 1482 and the RSO?
Local rent control controls. AB 1482 explicitly carves out any unit already restricted by a local ordinance that caps increases more tightly than the state formula, so a City of Los Angeles duplex covered by the RSO is governed by that ordinance’s 3 percent cycle cap, not the state’s 8.7 percent figure, even though both technically reference the same property. The practical task for an owner is to confirm the certificate of occupancy date and total unit count for each Los Angeles property before calculating any 2026 increase, since guessing wrong in either direction creates real exposure, either overcharging a rent-stabilized tenant in violation of the RSO or leaving money on the table by applying a local cap to a property that was genuinely exempt.
How does Ventura County compare, and does Oxnard change the math?
Outside the City of Los Angeles, most Ventura County jurisdictions rely on the statewide AB 1482 cap alone. The Ventura City Council formally declined to adopt a general rent stabilization ordinance in 2025, citing concerns about discouraging housing investment, and Thousand Oaks, Simi Valley, and Camarillo have not adopted comparable ordinances covering standard rentals. Oxnard is the notable exception. Its rent stabilization program limits annual increases to 4 percent for multifamily units that received their first certificate of occupancy before February 1, 1995, and the city’s municipal code sets out specific criteria under which particular single-family homes, condominiums, and duplexes are also covered or exempt, so an Oxnard owner should not assume a small property automatically falls outside the ordinance without checking those criteria directly against Chapter 27-24 of the city code. As with the Los Angeles RSO, an Oxnard owner may impose only one rent increase per covered unit in any twelve month period.
What should a self-managing owner do before sending a 2026 rent increase notice?
Confirm jurisdiction first, since a property’s city, not just its county, often determines which rules apply. Confirm the building’s certificate of occupancy date and unit count if the property sits within the City of Los Angeles or Oxnard, since either can trigger a local cap far below the statewide figure. If claiming the AB 1482 single-family or condo exemption, confirm that the required written notice has actually been delivered to the tenant, not just assumed. Match the notice period to the size of the increase, 30 days for increases of 10 percent or less, 90 days for anything above that threshold. And recalculate any Los Angeles RSO notice that still includes the old utility or dependent occupant add-ons, since both were eliminated this year. Even experienced owners frequently apply last year’s percentage out of habit, and a property that changes hands, changes management, or gets a new tenant is often where the error surfaces.
Boutique Property Management has spent over two decades managing one to four unit residential properties across Los Angeles and Ventura County, and tracking exactly which rent cap applies to each client’s property, down to the certificate of occupancy date, is part of the concierge-level service its owners rely on. If you are unsure which rules govern your rental, or you want a second opinion before sending a 2026 rent increase notice, contact Boutique Property Management to speak with a member of our team.