How RentRight Calculates Your Maximum Rent Increase
Complete transparency into our calculation methodology. Understand exactly how we determine compliant rent increases based on California law and local ordinances.
Staying Compliant Made Simple
RentRight automatically determines which rent control laws apply to your property and calculates the maximum allowable increase. We handle the complexity of overlapping jurisdictions so you can focus on managing your property.
How We Handle Multiple Jurisdictions
California rental properties may be subject to multiple rent control laws, but which ones apply depends on your property's location. A property is subject to either a city ordinance or a county ordinance—not both. State law (AB 1482) applies as a statewide ceiling on top of local rules. Here's how we determine which rules apply:
Step 1: Check Applicability
First, we determine which laws actually apply to your specific property based on:
- Building age - Many local ordinances only cover buildings built before a certain date
- Number of units - Some laws exempt small properties (e.g., single-family homes)
- Property type - Condos, mobile homes, and subsidized housing may have different rules
- Ownership structure - Owner-occupied duplexes often have different treatment
Step 2: Select the Governing Rate
Among the jurisdictions that apply to your property, we use the lowest rate. This ensures compliance with all applicable laws. AB 1482 acts as a statewide ceiling—if a local rate exceeds AB 1482's limit, the state cap applies.
• California AB 1482: ~8.0% (5% + CPI) ✓ applies
• LA County RSTPO: N/A (only covers unincorporated areas)
• LA City RSO: 3.0% (fixed rate) ✓ applies
Result: LA City RSO's 3.0% governs (lowest applicable rate)
• California AB 1482: ~8.0% (5% + CPI) ✓ applies
• LA County RSTPO: ~1.8% (60% × CPI, capped at 3%) ✓ applies
• LA City RSO: N/A (not within city limits)
Result: LA County's ~1.8% governs (lowest applicable rate)
Step 3: Determine Notice Requirements
For notice periods, we use the longest required notice across all applicable jurisdictions. This ensures you provide adequate notice under all laws.
• Standard California: 30 days for increases ≤10%
• Local ordinance: 60 days for any increase
Result: 60-day notice required
Jurisdiction Hierarchy
Your property is governed by state law (AB 1482) plus either a city or county ordinance—not both. AB 1482 sets a statewide ceiling; local laws can be stricter but not more permissive.
Property Coverage Requirements
Not all rental properties are subject to rent control. Coverage depends on several factors that we automatically evaluate for your property.
Building Age
AB 1482 (California): Buildings 15+ years old are covered. New construction is exempt.
LA City RSO: Only buildings with Certificate of Occupancy before Oct 1, 1978.
LA County RSTPO: Buildings with Certificate of Occupancy before Feb 1, 1995.
Property Type
Covered: Apartments, duplexes (if not owner-occupied), condos (with conditions).
Often Exempt: Single-family homes, owner-occupied duplexes, deed-restricted affordable housing.
Number of Units
AB 1482: Applies to properties with 2+ units (with corporate ownership) or single-family homes owned by corporations.
Local ordinances: May have different unit thresholds.
California AB 1482 Baseline
Most California rentals are covered by AB 1482 unless specifically exempt.
Rate: 5% + local CPI (capped at 10%)
Applies through: January 1, 2030
Understanding Exemptions
Your property may qualify for exemptions that allow higher increases or remove rent control entirely. We evaluate three possible states:
Covered
Rent control applies. You must follow the maximum allowable increase.
Exempt
Rent control does not apply. You can set rent at market rate (still subject to notice requirements).
Conditional / Requires Verification
Exemption may apply but requires additional documentation or tenant notice. We'll show you both scenarios until verified.
Common Exemptions for Landlords
New Construction
Buildings less than 15 years old are exempt from AB 1482.
Single-Family Homes
Exempt if owned by natural person (not corporation) and proper notice given.
Owner-Occupied
Owner-occupied duplexes and single-family with ADU where owner lives on-site.
Small Landlord Status
Some jurisdictions offer higher caps for qualifying small landlords.
How Rates Are Calculated
Different jurisdictions use different formulas. Here are the common types:
Fixed Annual Rate
Some jurisdictions publish a fixed rate each year. The rate is predetermined and doesn't change during the year.
Effective: July 1, 2025 - June 30, 2027
CPI-Based Calculation
Many jurisdictions tie increases to the Consumer Price Index (CPI), often with a multiplier and caps.
Formula: min(CPI × 60%, 3%)
Current CPI (LA Area): ~3.0%
Calculation: 3.0% × 60% = 1.8%
Cap check: 1.8% < 3% (no cap applied)
Result: ~1.8%
We automatically retrieve the latest CPI from the Bureau of Labor Statistics monthly.
California AB 1482 Formula
The statewide baseline for most covered properties.
Current CPI (LA Area): ~3.0%
Calculation: 5% + 3.0% = 8.0%
Cap check: 8.0% < 10% (no cap applied)
Result: ~8.0%
Notice & Registration Requirements
Notice Period Requirements
≤10% Increase: 30-day written notice
>10% Increase: 90-day written notice
Local Ordinances:
May require longer notice periods
We always calculate the longest required notice across all applicable jurisdictions.
Property Registration
• Annual property registration
• Registration fee payment
• Compliance certification
Check with your local rent board for specific registration requirements.
Official Data Sources
U.S. Bureau of Labor Statistics
Consumer Price Index data for California metropolitan areas
View BLS CPI DataCalifornia Department of Industrial Relations
AB 1482 (Tenant Protection Act) official guidance and rates
View AB 1482 InformationLocal Rent Boards & Agencies
Official ordinance text and annual rate announcements from each jurisdiction
We track LA County DCBA, LA City LAHD, and other local agencies for regulatory updates.
Data Accuracy & Updates
Our Monitoring System
Quality Commitments
Update Schedule
Important Legal Disclaimers
Not Legal Advice
This calculator provides estimates based on current regulations. Always consult with qualified legal counsel for specific compliance requirements and legal advice.
Accuracy Limitations
While we strive for accuracy, rent control laws are complex and subject to interpretation. Official determinations should come from local rent boards or legal counsel.
Rate Updates
Rent control rates are typically announced annually. We update our calculations promptly when new rates are published, but timing may vary by jurisdiction.
Your Responsibility
Landlords are responsible for verifying compliance with all applicable laws. RentRight is a tool to assist with compliance, not a substitute for professional advice.
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