Rent increase notice california rules decide how much warning you get before your rent goes up, and how big the raise can be. Under the rent increase notice california law, a raise of 10 percent or less needs at least 30 days’ written notice, and a raise over 10 percent needs at least 90 days.
What Rent Increase Notice California Actually Says
Take a breath. A notice is not an eviction. It is a written letter saying your rent will change on a set date. The rent increase notice california rules in Civil Code section 827 cover month-to-month, week-to-week, and other rentals shorter than a month.
The key number is 10 percent. It is measured against the rent charged at any time in the 12 months before the new rent starts. Past raises in that window count too. For example, on $2,000 rent, 10 percent is $200. A raise over $200 needs 90 days’ notice. As a result, bigger raises give you more time to plan.
The cap lives in Civil Code section 1947.12. It uses the lowest rent charged in the past 12 months as the starting point. The cost-of-living part comes from a federal price index for your metro area. Typically, that number changes each year. The statute does not print it, so confirm your area’s figure with the U.S. Bureau of Labor Statistics or the California Department of Industrial Relations. Knowing both rules is how you read any rent increase notice california landlords send.
| Provision | Exact rule | Section |
|---|---|---|
| Notice for a raise of 10% or less | At least 30 days before the new rent starts | Civ. Code 827(b)(2) |
| Notice for a raise over 10% | At least 90 days before the new rent starts | Civ. Code 827(b)(3)(A) |
| Subsidized housing income recertification | At least 30 days, even if over 10% | Civ. Code 827(b)(3)(B) |
| Rent cap | 5% plus cost-of-living change, or 10%, whichever is lower | Civ. Code 1947.12(a)(1) |
| How many raises | No more than 2 in any 12-month period | Civ. Code 1947.12(a)(2) |
| Time limit to sue for overcharges | 3 years from when the claim arose | Civ. Code 1947.12(k)(4) |
| Cap end date | In effect until January 1, 2030, then repealed | Civ. Code 1947.12(o) |
Who Rent Increase Notice California Covers (and Who It Does Not)
The notice rules apply to almost every residential renter on a periodic tenancy. The cap is narrower. Section 1947.12 lists homes that are exempt from the cap. In most cases, you still get the section 827 notice time even if the cap does not apply. That makes rent increase notice california protection broader than the cap.
The cap does not apply to these homes:
- Housing that got a certificate of occupancy within the previous 15 years (mobilehomes excepted).
- A single-family home or condo, but only if the owner is not a REIT, a corporation, or an LLC with a corporate member, and you got a written exemption notice.
- A duplex where the owner lived in one unit when your tenancy began and still lives there.
- Deed-restricted affordable housing and college or school dorms.
- Units under local rent control that limits raises to less than the state cap.
However, that single-family exemption depends on paperwork. If you never got the written notice the statute requires, the exemption may not apply. Also, when a new tenant moves in, the owner can set the first rent freely. The cap only limits later raises. Some cities have their own rent laws. Check with your city about any stricter rent increase notice california rules where you live.
What Your Landlord Must Do Under This Law
Your landlord must give written notice. Section 827 allows two ways: handing it to you personally, or mailing it under Code of Civil Procedure section 1013. If mailed, the law adds extra time, so the new rent starts later. Section 1947.12(e) says covered owners must follow section 827 for every raise. A verbal “your rent is going up” is not enough under rent increase notice california law.
Also, section 827(c) says a longer notice period wins if another law, regulation, recorded agreement, or contract requires one. For example, some subsidized housing contracts do. As a result, check your lease and any housing program papers. Every rent increase notice california landlords serve must also keep the raise within the cap, if the cap covers your home.
What You Can Do When It Is Broken
If the notice came too late, write to your landlord. Point to the correct date under section 827. Typically, the new rent should not start before the full notice period ends. Keep paying your current rent on time, and keep copies of everything. Check with your court or a local legal-aid office before refusing any amount.
If the raise breaks the cap, section 1947.12(k) gives you strong tools. You may be able to sue for the overcharge, get a court order stopping it, and ask for attorney’s fees. If the owner acted willfully or with fraud, a court can award up to three times the overcharge. The California Attorney General and your city attorney or county counsel can also enforce the law. Any lease clause waiving these rights is void.
You have 3 years to bring an overcharge claim. If a rent increase notice california dispute turns into an eviction threat, act fast. Contact a local legal-aid office or tenant attorney right away. Under rent increase notice california rules, you should not have to choose between your rights and your home.
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Frequently Asked Questions
Is a 30-day rent increase notice california landlords give always legal?
Only if the raise is 10 percent or less over the past 12 months. For a larger raise, the law requires at least 90 days. Earlier raises in that 12-month window count toward the 10 percent.
Can my landlord raise the rent three times this year?
Not if the cap covers your home. Section 1947.12 allows no more than two increases in any 12-month period. The total still cannot go over the cap.
What is the exact cap for 2026?
It is 5 percent plus your area’s cost-of-living change, never more than 10 percent. The statute does not list the yearly figure. Raises starting on or after August 1, 2026 use the April 2025 to April 2026 index change. Confirm your area’s number with the Bureau of Labor Statistics or legal aid before challenging any rent increase notice california landlords send.
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Find Your State’s Exact Rules
Notice periods, deposit caps, and the eviction timeline all change from state to state. Pick your state to see the exact days, dollar limits, and steps that apply where you live.
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Sources & How to Verify
The rules on this page are drawn from official government and legal-aid sources. Tenant law changes, so always confirm the exact rule with your state’s statute or a local legal-aid office.
- HUD: hud.gov — federal renter protections and fair housing
- Legal Services Corporation: lsc.gov — find free legal aid in your state
- Cornell Legal Information Institute: law.cornell.edu/wex — plain-English legal definitions
- Your state statute & court self-help portal: search “[your state] landlord tenant act” and “[your state] court self-help eviction” for the exact law and forms
Content last reviewed September 2026. If you notice outdated information, please contact us.
California Renter Guides
- California Eviction Process
- California Tenant Rights
- California Security Deposit Law
- California Rent Increase Laws
- California Repairs and Habitability
- Breaking a Lease in California
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Informational only — not legal advice. Tenant Rights Info is an independent educational resource, not a law firm, and this page does not provide legal advice. Landlord-tenant law varies by state and city and changes over time, so always verify the exact rule with your state’s statute, your local court’s self-help portal, or a legal-aid office. For urgent situations like an active eviction, contact a local legal-aid office or a licensed tenant attorney in your state right away.