California Rent Increase Rules
At a glance
Notice before a rent increase
California requires 30 days' written notice for increases under 10%, and 90 days' notice for increases of 10% or more.
The notice must be in writing and state the new rent amount and the effective date. Verbal notice alone is not sufficient. If your landlord raises rent without providing the required 30-day written notice, the increase is not legally effective and you may continue paying your current rent until proper notice is given and the notice period runs.
Limits on how much rent can increase
California has a rent cap. Annual increases are limited to: 5% + local CPI, max 10% (AB 1482, for covered units).
California requires 30 days' notice for increases under 10%, and 90 days' notice for increases of 10% or more (Civ. Code § 827). AB 1482 (Tenant Protection Act, 2020) caps annual increases at 5% + local CPI (max 10%) for covered units: multi-family buildings 15+ years old. Local ordinances in Los Angeles, San Francisco, Oakland, Berkeley, and many other cities impose stricter caps and just-cause protections. Rent cannot be raised during a fixed-term lease.
Rent increases during a fixed-term lease
In California — as in every U.S. state — a landlord cannot raise rent during a fixed-term lease (such as a 12-month lease) unless the lease itself contains a rent escalation clause allowing it. Your rent is locked in for the entire lease term. At renewal, the landlord may propose a new rent amount; you can accept, negotiate, or choose not to renew.
Retaliatory and discriminatory rent increases
Even where no cap exists, landlords in California cannot raise rent in retaliation for a tenant exercising a legal right — such as complaining to a housing inspector, requesting repairs, or organizing with other tenants. Retaliatory rent increases violate state law and federal fair housing laws. Similarly, a landlord cannot target a rent increase based on race, religion, national origin, sex, disability, or other protected classes.
Common questions about rent increases in California
Can my California landlord raise rent mid-lease?
No. Rent cannot be raised during a fixed-term lease unless the lease itself contains a rent escalation clause. The landlord can propose a new rent only when the lease renews or when you're month-to-month.
What happens if my California landlord doesn't give proper notice?
If your landlord raises rent without giving 30 days' written notice, the increase is not legally effective. You can continue paying the old amount until proper notice is provided and the notice period expires.
Does California have rent control?
Yes. California has rent control or stabilization: 5% + local CPI, max 10% (AB 1482, for covered units). Check with your local housing authority for details.
Is the rent increase notice required to be in writing in California?
Yes. California requires written notice of a rent increase. Verbal notice alone is not sufficient. The notice should state the new rent amount and the date it takes effect.