California’s landlord-tenant rules are a layer cake: the Civil Code (sections 1940 through 1954.1, plus 1950.5 for deposits), the statewide Tenant Protection Act of 2019 (AB 1482), and local rent-control ordinances in San Francisco, Los Angeles, Oakland, Berkeley, and other cities. July 1, 2024 brought a major change — Assembly Bill 12 cut the maximum security deposit to one month’s rent for nearly every unit.
AB 1482 caps annual rent increases at 5% plus inflation, or 10%, whichever is lower, for most housing more than 15 years old, and it requires just cause to end most tenancies once a tenant has lived there a year. Local rules can be stricter, and where they are, the local rule wins.
With some of the strongest tenant protections in the country, California rewards careful paperwork on both sides of the lease. This guide is general information, not legal advice — for help, start at LawHelpCA.org or contact a local tenant organization.
| Governing law | California Civil Code §§ 1940–1954.1 and 1950.5 |
|---|---|
| Security deposit cap | 1 month’s rent; 2 months for small landlords (AB 12, effective July 1, 2024) |
| Deposit return deadline | 21 days after surrender (Civ. Code § 1950.5(g)) |
| Rent increase cap | 5% + CPI or 10%, whichever is lower (AB 1482) |
| Rent increase notice | 30 days (≤10% increase); 90 days (>10%) on month-to-month (Civ. Code § 827) |
| Nonpayment notice to quit | 3 days (Code Civ. Proc. § 1161) |
California Rental Law at a Glance
California layers state statute, statewide rent and eviction caps, and local ordinances on top of each other. The Civil Code supplies the baseline — habitability duties, deposit rules, notice periods — while AB 1482 adds a statewide rent ceiling and just-cause protection, and cities like San Francisco, Los Angeles, Oakland, and Berkeley run their own rent boards with stricter limits.
The practical effect: the same apartment in different California cities can be governed by different caps, and a lease term that conflicts with any non-waivable law is unenforceable. Federal law — the lead-based paint disclosure for pre-1978 housing and fair housing protections — applies everywhere.
Security Deposits After AB 12
Since July 1, 2024, the maximum security deposit is one month’s rent for most units, furnished or unfurnished (Civil Code § 1950.5, as amended by AB 12). Small landlords — natural persons or all-natural-person LLCs owning no more than two properties totaling four or fewer units — may collect up to two months’ rent. The cap includes pet deposits, key deposits, cleaning deposits, and last month’s rent, but not monthly pet rent. Service members keep the one-month cap.
The landlord must return the deposit, or provide an itemized statement of deductions with the balance, within 21 days after surrender. Deductions are limited to unpaid rent, cleaning to restore move-in condition, repair of damage beyond normal wear and tear, and restoration of alterations the lease required.
- ✓Bad-faith retention exposes the landlord to damages of up to twice the deposit plus reasonable attorney fees (§ 1950.5(l)).
- ✓California does not require a separate account or interest on deposits, but the money is held in trust for the tenant and cannot be spent.
- ✓Tenant tip: complete a move-in checklist with photos and give a forwarding address in writing. Landlord tip: run the 21-day clock from surrender and itemize with real invoices — the penalties for missing it are steep.
Pet Deposits and Pet Rent in California
Pet deposits count toward the one-month cap; monthly pet rent does not, so many California landlords charge a modest monthly pet rent instead of a large deposit. Pet rent must be stated in the lease, and in rent-controlled cities adding pet rent mid-tenancy can be treated as an unlawful rent increase.
Service animals and emotional support animals are not pets: landlords must reasonably accommodate them and may not charge pet deposits, pet rent, or extra fees, though recent state law tightened documentation rules for emotional support animals. A pet-friendly lease should spell out the deposit, any pet rent, and responsibility for damage.
Rent Increases: AB 1482 and the Notice Rules
For housing more than 15 years old, AB 1482 caps annual increases at 5% plus the regional Consumer Price Index, or 10%, whichever is lower, per 12-month period. Covered landlords must give notice of the cap. Where a city has its own rent stabilization — San Francisco, Los Angeles, Oakland, Berkeley — the local cap, often lower, controls.
Notice rules are separate from the cap. On a month-to-month tenancy, Civil Code § 827 requires at least 30 days’ notice for an increase of 10% or less, and at least 90 days above 10%. Fixed-term leases lock the rent for the term; an increase applies only at renewal under the lease’s notice terms.
Habitability, Disclosures, and Repairs
California’s warranty of habitability is implied in every lease: the unit must have working plumbing, heating, and electricity and be clean and safe (Civil Code § 1941.1). Landlords must provide working smoke alarms and, under the Carbon Monoxide Poisoning Prevention Act, carbon monoxide detectors in most units with fuel-burning appliances or attached garages. Disclosures include the federal lead-paint form for pre-1978 housing, the AB 1482 notice for exempt properties, and local rules on bed bugs in many cities.
California allows repair-and-deduct: if a landlord fails to fix an untenantable condition after written notice, the tenant may repair and deduct up to one month’s rent (Civil Code § 1942), seek rent abatement, or end the tenancy. Landlords cannot retaliate for reporting conditions, and self-help evictions are illegal.
Evictions: The 3-Day Notice and Just Cause
For nonpayment of rent, a California landlord serves a three-day notice to pay rent or quit under Code of Civil Procedure § 1161 — and a recent court decision, Eshagian v. Cepeda, tightened what those notices must contain, so landlords should use current forms. If the tenant does not pay, the landlord files an unlawful detainer action.
Under AB 1482, most tenants in a covered unit for 12 months or more can be evicted only for just cause — at-fault reasons like nonpayment or no-fault reasons like owner move-in — and no-fault terminations require relocation assistance (typically one month’s rent) or a written waiver. San Francisco, Los Angeles, and Oakland have their own just-cause rules. Answer an unlawful detainer immediately and seek help.
Resolving Disputes: Small Claims and Tenant Help
California small claims court handles cases up to $12,500, which covers most deposit disputes including the double-damages remedy. Start with a written demand letter citing § 1950.5, then file in the county where the property sits if the landlord does not respond.
Free help is available statewide through LawHelpCA.org, and groups like Tenants Together, Bay Area Legal Aid, and the LA Tenants Union provide advice. Whatever side you are on, the case turns on documentation: the lease, photos, written notices, and the itemized statement.
Guide reviewed 2026-08-19. Rental laws change frequently; verify the current statute text before relying on any rule on this page. This information is not legal advice.
