How often can rent be raised in California?
In California, rent can generally be raised only once every 12 months for units covered by the 10% cap. Month-to-month tenants can also see increases with 30 days' written notice.
Step-by-step answer
- Step 1
Fixed-term leases
While you're inside a fixed-term lease in California, the rent generally cannot change until the lease ends. That effectively limits increases to once per lease cycle.
- Step 2
Month-to-month tenancies
On a month-to-month tenancy, the landlord can propose a new rent whenever they give 30 days' written notice and stay within the 10% annual cap. Multiple increases in a short window can still be challenged as unreasonable or retaliatory.
In California, rent can generally be raised only once every 12 months for units covered by the 10% cap. Month-to-month tenants can also see increases with 30 days' written notice.
The numbers that decide it
- Statewide formula
- 5% + regional CPI
- Cal. Civ. Code §1947.12
- Hard ceiling
- 10%
- The total can never exceed 10% in any 12-month period for covered units
- Typical 2026 cap in most metros
- ≈8–10%
- Depends on your regional CPI figure — check yours before relying on it
- Notice
- 30 or 90 days
- 90 days when the 12-month increase is more than 10%
Figures change — verify against the official source before relying on them.
Worked example
Worked example: $2,000 rent in Los Angeles
- Start with the current rent: $2,000 per month.
- Check coverage. AB 1482 generally covers units at least 15 years old; many new builds, some single-family homes, and owner-occupied duplexes are exempt, and your notice should state which applies.
- Look up your regional CPI figure. If it is 3.5%, the cap is 5% + 3.5% = 8.5%.
- Apply it: $2,000 × 0.085 = $170, so the highest covered rent would be about $2,170.
- Compare the ceiling: 10% of $2,000 is $200, so even a high CPI year would stop around $2,200.
- If the notice says $2,400, that is 20%. On a covered unit that appears to exceed the statutory cap, and because the increase is over 10% it would also generally require 90 days' notice rather than 30.
- If your city has its own stabilization ordinance (Los Angeles, Santa Monica, Oakland, San Francisco, Berkeley), the local cap is often lower and controls instead.
Two numbers decide most California cases: your regional CPI and whether the unit is covered at all. Get both before responding in writing.
Where these rules come from
- Cal. Civ. Code §1947.12 (AB 1482)
The statewide cap: 5% plus regional CPI, never more than 10% total, for most covered units at least 15 years old.
- Cal. Civ. Code §827(b)
Notice rules on month-to-month tenancies: generally 30 days, or 90 days when the increase over 12 months is more than 10%.
- California CPI figures used for the cap
The regional CPI series landlords must use when calculating the 5% + CPI figure for your area.
Check your specific situation
Where do you rent?
Free legal help in California
Walk through three quick steps to find the right tenant-rights program for your situation.
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Other common questions about California
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