Rent Increases · California
Rent increase notice in California
A California landlord must give 30 days’ written notice before a rent increase takes effect, and may raise the rent no more than 2 times in any 12 months.
Required notice
30 days
Tiered: 30 days where the increase is 10% or less of the rent charged in the preceding 12 months, 90 days where it is more. Separately, AB 1482 caps the increase at 5% plus CPI or 10%, whichever is lower, and permits no more than two increments in any 12-month period. Many units are exempt from AB 1482.
“If the proposed rent increase is 10 percent or less of the rental amount charged during the 12 months before the effective date of the increase, the notice shall be delivered at least 30 days before the effective date”
California has a statute specifically about rent increases
Cal. Civ. Code 827(b); 1947.12 (AB 1482) addresses rent increases directly, so the 30days is a floor written for exactly this situation — not borrowed from the termination rules, as it is in 29 other states.
Increases per 12 months
2 times
“If the proposed rent increase is 10 percent or less of the rental amount charged during the 12 months before the effective date of the increase, the notice shall be delivered at least 30 days before the effective date”
When the new rent can actually start
The notice period runs before the increase takes effect, not before you send it. Counting from the wrong end is the most common way a valid increase becomes an invalid one. In California, a notice served today makes the new rent collectable no earlier than 30days from now — and in most states it must also line up with a rent due date, so in practice the increase begins on the first rent date after the period expires, not on day 31 itself.
Rent is still owed at the old figure for the whole notice period. A tenant who pays the old amount during those 30 days is paying correctly, and treating the shortfall as arrears is a mistake that turns into a losing eviction case.
What the notice has to contain
Requirements vary, but a notice that includes all of the following is hard to attack anywhere:
- The current rent and the new rent, as figures.
- The date the new rent takes effect.
- The address of the unit and the tenant’s name.
- The date the notice was given, and a record of how it was delivered.
Keep proof of service. Where a dispute reaches a hearing, the argument is almost never about what the notice said — it is about whether the tenant received it, and when.
The detail specific to California
Tiered: 30 days where the increase is 10% or less of the rent charged in the preceding 12 months, 90 days where it is more. Separately, AB 1482 caps the increase at 5% plus CPI or 10%, whichever is lower, and permits no more than two increments in any 12-month period. Many units are exempt from AB 1482.
Notice is not the same as a cap
A notice period controls when rent can rise. It says nothing about how much. Only a handful of states cap the amount — California, Oregon and Washington do so statewide, and a number of cities do it locally through rent control or stabilisation. Everywhere else, a landlord who gives proper notice may raise the rent by any amount the market will bear.
Which means a short notice period is not the same as a weak protection, and a long one is not the same as a strong one. North Carolina requires only 7 days; Maryland requires 90. Neither caps the increase.
How this compares
Across the United States the requirement runs from 7 days to 90. California sits at 30. See every state side by side, including which ones have a real statute and which borrow from their termination rules.
Other states requiring 30 days
Common questions
- How much notice must a landlord give before raising rent in California?
- 30 days' written notice under Cal. Civ. Code 827(b); 1947.12 (AB 1482). Tiered: 30 days where the increase is 10% or less of the rent charged in the preceding 12 months, 90 days where it is more. Separately, AB 1482 caps the increase at 5% plus CPI or 10%, whichever is lower, and permits no more than two increments in any 12-month period. Many units are exempt from AB 1482.
- How often can rent be raised in California?
- No more than 2 times in any 12-month period, under Cal. Civ. Code 827(b); 1947.12 (AB 1482).
- Can a California landlord raise rent mid-lease?
- Not on a fixed-term lease, unless the lease itself allows it. A fixed rent for a fixed term is the bargain both sides signed, and it binds the landlord too. Rent increases on a fixed-term tenancy normally take effect at renewal; the notice periods here govern month-to-month tenancies and renewals.
- What happens if the notice is short or never given?
- The increase is generally ineffective — the tenant owes the old rent until a proper notice has run its course. Some states say so expressly. A landlord who collects the higher amount without valid notice is usually collecting an overpayment, not rent.
Serve the notice on the right date
Pacific Rentals Pro knows your state’s notice period, counts back from the date you want the new rent to start, and keeps the record of what was sent and when. The California rule on this page is the same data the app runs on.
Start free →Read against the cited source on November 6, 2026. Authority: Cal. Civ. Code 827(b); 1947.12 (AB 1482). General information about Californialaw, not legal advice — statutes change and city ordinances can impose longer notice and caps the state does not. Rent-controlled and rent-stabilised units follow separate rules.