California Rent Increase Rules: Caps, Notice Requirements, and Exemptions

California's Tenant Protection Act (AB 1482) established statewide rent caps that limit how much landlords can increase rent each year. Understanding these rules is critical to staying compliant and avoiding penalties.

Disclaimer: This guide provides general legal information for educational purposes only and does not constitute legal advice. Always consult a licensed attorney in California for advice specific to your situation. Information last verified: March 2026.

Statewide Rent Cap

For properties covered by AB 1482, the maximum annual rent increase is:

5% + local Consumer Price Index (CPI), or 10% — whichever is LOWER

This cap applies per 12-month period. Landlords cannot increase rent more than once in any 12-month period.

Notice Requirements

Properties Covered by AB 1482

Most residential properties in California are covered, including:

• Apartments and multi-family buildings
• Condos and townhouses (if not owner-occupied)
• Single-family homes owned by corporations, REITs, or LLCs with at least one corporate member
• Mobile homes and manufactured housing spaces

Exempt Properties

The following are exempt from the statewide rent cap:

1. New construction — properties with a Certificate of Occupancy issued within the last 15 years
2. Single-family homes — if owned by a natural person (not a corporation), not more than two properties, and tenant has been provided the exemption notice
3. Owner-occupied duplexes — where the owner lives in one unit
4. Affordable housing — subject to a government deed restriction
5. Dormitories — associated with educational institutions
6. Properties under local rent control — if the local ordinance is more restrictive

Local Rent Control Ordinances

Several California cities have their own rent control laws that may be more restrictive:

Always check your local city's ordinances — they override state law if more restrictive.

Penalties for Exceeding the Rent Cap

If a landlord increases rent beyond the allowable cap:

• The tenant may file a complaint with the city or take legal action
• The excessive portion may be deemed void and unenforceable
• The landlord may be required to refund the overcharge plus interest
• In some cities, penalties and attorney's fees may apply

Best Practices

1. Calculate CPI before each increase — Check your local CPI published by the Bureau of Labor Statistics
2. Document the calculation — Keep records showing your increase is within the cap
3. Serve proper notice — Use the correct notice period (30 or 90 days)
4. Check local rules first — Your city may have stricter limits
5. Include AB 1482 disclosure — Notify tenants whether the property is covered or exempt

How Landager Helps

Landager tracks lease terms including rent amounts, increase history, and renewal dates — making it easy to monitor your compliance with rent cap regulations.

Back to California Landlord-Tenant Laws Overview.