California caps rent rises statewide, but not on every home
Landlords can increase rent by the lesser of 5 percent plus inflation or 10 percent annually, but many property types are exempt from California's statewide rent cap.
California limits how much landlords can raise rent each year through a statewide cap established in 2019. Rental housing has long been a contentious issue in California, with rising costs pricing many residents out of the market. The statewide rent control law, known as the Tenant Protection Act, represents one of the state's most significant efforts to limit rent growth.
The limit applies to most residential properties, but specific categories of housing—including newly built units, owner-occupied buildings, and properties under local rent control—are exempt from the statewide cap. The actual cap changes annually based on inflation. Understanding which properties fall under the cap and how landlords calculate the maximum allowable increase is essential for both renters and property managers navigating California's rental market.
How the rent increase formula works
Under California law, landlords cannot increase rent by more than "5 percent plus the percentage change in the cost of living, or 10 percent, whichever is lower" during any 12-month period. This formula means the actual cap changes each year based on the consumer price index (CPI), which measures inflation. If inflation is 3 percent, the cap would be 8 percent (5 + 3). If inflation reaches 6 percent or higher, the cap stays at 10 percent maximum.
This ceiling prevents rent from escalating too quickly, even when inflation spikes sharply. The specific percentage reflects a legislative balance: it allows landlords to recover some of their cost increases while preventing rent from outpacing tenant income growth. Owners must provide advance written notice to tenants of any rent increase.
The increase applies to the total rent charged; landlords cannot use additional charges, fees, or services to circumvent the cap. Tenants facing a rent increase should examine whether it complies with the formula by confirming the year-over-year percentage change.
Which properties are covered and which are exempt
The rent cap applies to residential real property broadly, covering apartments in multi-unit buildings, single-family homes, condominiums, duplexes, and other dwelling units. The law covers both properties rented by small independent landlords and large institutional owners. The increase limits apply to existing tenants remaining in a unit; the cap does not restrict what landlords can charge new tenants moving into a unit after an existing tenant leaves. This distinction matters significantly for properties with high tenant turnover.
Certain residential properties are entirely exempt from the statewide rent cap. Housing issued a certificate of occupancy within the previous 15 years is exempt, meaning newly constructed buildings can charge market-rate rent without being subject to the increase cap. Dormitories at educational institutions are not subject to the cap.
Properties subject to local rent control ordinances that restrict rent increases to less than the statewide cap are exempt from the statewide limits; the local rules take precedence. This provision preserved local rent control systems already in place when the state law took effect. Cities like San Francisco, Los Angeles, and Berkeley have their own local rent control laws that often provide greater protections than the state minimum. Affordably restricted housing is also exempt.
Small residential properties may qualify for exemption under limited circumstances. Exemption requires that the owner is not a corporation, real estate investment trust, or LLC with corporate membership, and that proper notice has been given to tenants. Tenants unsure whether their unit is covered should consult local tenant rights organizations or attorneys.
Restrictions on how often landlords can raise rent
Beyond the annual percentage cap, landlords also face a frequency limit. Landlords cannot raise rent more than twice within a single 12-month period when the same tenant remains in occupancy. This restriction prevents landlords from implementing multiple increases throughout a year, even if each individual increase falls within the percentage cap. For example, a landlord cannot raise rent in January, March, and September to the same tenant.
The frequency limit applies per tenant. If a tenant moves out and a new tenant takes over, the landlord can reset rent and implement separate increases for the new tenant. This distinction means properties with frequent tenant turnover can reach market rates more quickly than buildings where tenants remain long-term. The restriction aims to provide rent stability for existing tenants while allowing market-rate adjustments for new leasing situations.
“If inflation is 3 percent, the cap would be 8 percent (5 + 3). If inflation reaches 6 percent or higher, the cap stays at 10 percent maximum.”
Timeline and enforcement
In 2024, the state extended the law through January 1, 2030, providing four more years of statewide rent control and offering longer-term certainty for both renters and landlords.
The extended law also strengthened enforcement mechanisms. Landlords who demand rent payments exceeding the legal limit face potential civil liability. The Attorney General and local authorities can seek injunctive relief and damages up to three times the amount by which any payment exceeds the maximum allowable rent. This treble damages provision creates financial incentive for enforcement and deterrence against violations. Tenants who believe they have been subjected to illegal rent increases have recourse through both the Attorney General's office and private legal action.
