California Rent Increase Calculator 2026
How much can rent increase in California? Enter the current and proposed rent, then review the applicable statewide rule, notice baseline, exemptions, local-rule checks and official source before serving a notice.
Enter property address to get your regional capFree — California regional caps depend on the property's county/region. Enter the property address on the full calculator to determine the applicable cap.
California rent increase quick answer
Rule: A statewide formula or published cap may apply to covered rentals.
Who it applies to: Coverage depends on the property, tenancy type, lease terms, exemptions and any local ordinance or regulated-housing program.
Notice requirement: 30 days is the current baseline for the sample inputs; tenancy and local law can change it.
Last verified: 2026-09-13
Official source: Linked below.
California rent increase rule
For covered properties, California limits rent increases to 5% plus cost of living, up to 10%. For increases beginning Aug. 1, 2026 through July 31, 2027, the California DOJ publishes regional maximums from 8.1% to 8.8%; a lower local ordinance can control.
Reference: California Civil Code § 1947.12 / Tenant Protection Act
Source verified: 2026-09-13 · This primary source governs the state-level rule record used by connected Max Rental Tools workflows.
Official government source Editorial & verification policyConnected California rental tools
This guide is connected to the same dependency graph used by the calculator, rent-increase notice/PDF workflow, related articles, local guides and translated document pages. A verified rule change can therefore be traced to every downstream surface that may require review.
California maximum rent increase by region for 2026–27
For covered properties under California's Tenant Protection Act, the California Department of Justice currently publishes these statewide maximums for increases that begin from August 1, 2026 through July 31, 2027. A stricter city or county rent-control ordinance can produce a lower limit, and property-specific exemptions or eligibility rules still matter.
| Area | Counties | Statewide maximum |
|---|---|---|
| Los Angeles Area | Los Angeles, Orange | 8.7% |
| Riverside Area | Riverside, San Bernardino | 8.1% |
| San Diego Area | San Diego | 8.2% |
| San Francisco Area | Alameda, Contra Costa, Marin, San Francisco, San Mateo | 8.8% |
| All other counties | Counties not listed above | 8.6% |
Use the property address before relying on a percentage. The full calculator identifies the county and then checks for known local-rule flags. This table is a statewide Tenant Protection Act baseline, not a property-level legal determination.
California DOJ rent-cap chartCommon California rent increase questions
How much can a landlord raise rent in California?
A statewide formula may apply to covered properties. Exemptions, CPI inputs and local rules can change the final result, so verify the current official source before acting.
How much notice is required for a rent increase in California?
The calculator currently shows a baseline of 30 days for the sample inputs. Tenancy length, increase size, lease terms and local law can require a different period.
Can a landlord raise rent during a lease in California?
A fixed-term lease can restrict when rent changes take effect. Review the lease plus current state and local law before serving a notice.
Local California rent increase guides
Start with your city guide to identify the county and the local-rule checks that may apply beyond the statewide baseline.
AlamedaAlameda CountyAntiochContra Costa CountyBaldwin ParkLos Angeles CountyBell GardensLos Angeles CountyBerkeleyAlameda CountyBeverly HillsLos Angeles CountyCommerceLos Angeles CountyConcordContra Costa CountyCudahyLos Angeles CountyCulver CityLos Angeles CountyEast Palo AltoSan Mateo CountyHaywardAlameda CountyHuntington ParkLos Angeles CountyInglewoodLos Angeles CountyLarkspurMarin CountyLos AngelesLos Angeles CountyMaywoodLos Angeles CountyMountain ViewSanta Clara CountyOaklandAlameda CountyPalm SpringsRiverside CountyPasadenaLos Angeles CountyPomonaLos Angeles CountyRichmondContra Costa CountySacramentoSacramento CountySalinasMonterey CountySan FranciscoSan Francisco CountySan JoseSanta Clara CountySanta AnaOrange CountySanta MonicaLos Angeles CountyUnincorporated Los Angeles CountyLos Angeles CountyWest HollywoodLos Angeles County