The Real Rent Cap in Los Angeles Is 3%, Not 8% — Here’s Why

The Misconception That Costs LA Landlords Thousands

Every year, landlords in Los Angeles make the same expensive mistake. They look up California’s AB 1482 rent cap — currently around 8% for the LA metro area — and assume that is the number they can raise rent by. They send out rent increase notices at 7% or 8%, fully believing they are in compliance with the law.

They are wrong. And it can cost them dearly.

If your property is in the City of Los Angeles and was built before October 1, 1978, your rent increase is not governed by AB 1482. It is governed by the Los Angeles Rent Stabilization Ordinance, commonly known as LARSO or the RSO. And the current Allowable General Adjustment (AGA) under LARSO is just 3.0% — less than half of what AB 1482 would allow.

This is not a technicality. It is the difference between a legal rent increase and one that gives your tenant the right to file a complaint with the Los Angeles Housing Department (LAHD), recover excess rent, and potentially trigger an investigation into your property.

How LARSO Works: The Formula Behind the Cap

The Los Angeles Rent Stabilization Ordinance was originally adopted in 1979 in response to rapidly rising rents across the city. It has been amended multiple times, most recently in January 2026, when the City Council approved a significant change to how the annual rent increase is calculated.

The New Formula (Effective July 1, 2026)

Starting July 1, 2026, the Allowable General Adjustment is calculated using:

• 90% of the percentage change in CPI for the LA–Long Beach–Anaheim metropolitan area
• Floor: 1% — even if CPI is zero or negative, landlords can always raise rent by at least 1%
• Ceiling: 4% — no matter how high inflation runs, the maximum AGA is 4%

This is a substantial tightening from the prior formula.

The Old Formula (Prior to July 1, 2026)

Under the previous formula, the AGA was calculated as:

• 100% of the percentage change in CPI
• Floor: 3%
• Ceiling: 8%

The old formula also permitted additional increases for gas and electric utility pass-throughs and for each additional tenant (dependent) in the unit. These add-ons were eliminated under the 2026 amendments.

Current Allowable General Adjustment

For the period of July 1, 2025 through June 30, 2026, the AGA is 3.0%. This was calculated under the old formula but happens to fall within the range of the new formula as well. The CPI figure used is the Consumer Price Index for All Urban Consumers (CPI-U) for the Los Angeles–Long Beach–Anaheim metropolitan area, published by the Bureau of Labor Statistics.

Future AGAs under the new formula will be announced by LAHD each year, typically in May or June, and take effect on July 1.

The Math: What This Actually Means for Your Revenue

Numbers tell the story more clearly than any legal analysis. Consider a standard two-bedroom apartment in a LARSO-covered building with a current rent of $2,500 per month.

Scenario	Cap	Monthly Increase	Annual Impact
AB 1482 (LA CPI 3.0% + 5%)	8.0%	$200.00	$2,400.00
AB 1482 (LA CPI 3.7% + 5%, Aug 2026)	8.7%	$217.50	$2,610.00
LARSO (Current AGA)	3.0%	$75.00	$900.00
LARSO (Maximum under new formula)	4.0%	$100.00	$1,200.00

The gap is stark. A landlord who mistakenly applies the AB 1482 cap instead of the LARSO cap would overcharge by $125 to $142.50 per month. Over a year, that is $1,500 to $1,710 in excess rent that the tenant has a legal right to recover — plus penalties.

Now multiply that across a 10-unit building. You are looking at $15,000 to $17,100 per year in potential liability, not counting LAHD fines, attorney fees, or the cost of defending a complaint.

Which Properties Are Covered by LARSO?

LARSO applies to residential rental properties in the City of Los Angeles that meet all of the following criteria:

• Certificate of Occupancy issued before October 1, 1978
• Two or more units
• Located within the City of Los Angeles (not LA County unincorporated areas, not other cities within the county like Santa Monica, West Hollywood, or Pasadena — those have their own ordinances)

This covers approximately 650,000 rental units across the city, making LA’s rent stabilization system one of the largest in the United States. Only New York City has a larger rent-stabilized housing stock.

What Is NOT Covered by LARSO

• Single-family homes (unless illegally converted to multi-unit)
• Condominiums (unless rented as part of a multi-unit complex with a pre-1978 CoO)
• Properties with a Certificate of Occupancy issued on or after October 1, 1978
• Government-owned housing
• Units in a building where the landlord resides and the building has three or fewer units (limited exemption)
• Luxury accommodation (hotels, motels) not used as primary residences

If your property is in the City of LA but was built after 1978, AB 1482 is your governing law instead. If your property is in an unincorporated area of LA County with no local ordinance, AB 1482 also applies.

LARSO vs. AB 1482: Side-by-Side Comparison

Understanding the differences between LARSO and AB 1482 is critical for any landlord who owns property in the City of Los Angeles. These are two entirely different legal regimes with different formulas, different coverage, and different consequences.

Feature	LARSO (Los Angeles RSO)	AB 1482 (Statewide)
Rent Cap Formula	90% of CPI (1% floor, 4% ceiling)	5% + CPI (10% ceiling)
Current Cap	3.0% (July 2025–June 2026)	8.0% (Aug 2025–Jul 2026, LA region)
Construction Cutoff	Before October 1, 1978	15+ years old (rolling)
Unit Threshold	2+ units	2+ units (SFH exempt with notice)
Just Cause Required	Yes, from day one	After 12 months of tenancy
No-Fault Relocation	$10,650–$26,550 (varies)	One month’s rent
Registration Required	Yes ($43.32/unit/year)	No
Utility Pass-Throughs	Eliminated (as of Jan 2026)	Not applicable
Banking Unused Increases	No	No
Administering Agency	LAHD (LA Housing Dept)	Courts / tenant complaint
Sunset Date	None (permanent ordinance)	January 1, 2035 (extended by AB 12)

The most important line in this table is just cause timing. Under LARSO, just cause eviction protections apply from the first day of tenancy. There is no 12-month grace period like AB 1482. The moment a tenant moves into a LARSO-covered unit, you need a legally recognized reason to terminate their tenancy.

The Relocation Payment Trap

One of the most expensive surprises for LA landlords is LARSO’s relocation assistance requirements. If you need to evict a tenant for a no-fault reason — owner move-in, Ellis Act withdrawal, demolition, or major renovation — you must pay relocation assistance.

The amounts are significant and vary based on tenant circumstances:

Tenant Category	Relocation Amount (2025–2026)
Standard tenant	$10,650
Qualifying tenant (senior 62+, disabled, or minor children)	$26,550
Each additional qualifying tenant in same unit	Additional amounts per LAHD schedule

These amounts are adjusted annually by LAHD. For an Ellis Act withdrawal of a 10-unit building where several tenants are seniors or have children, the total relocation payments can easily reach $150,000 to $200,000 or more.

Compare this to AB 1482, which only requires one month’s rent as relocation assistance for no-fault evictions. The financial exposure under LARSO is dramatically higher.

Additionally, LARSO imposes specific notice periods for no-fault evictions that exceed state requirements. Ellis Act withdrawals, for example, require 120 days’ notice for most tenants and one full year’s notice for elderly or disabled tenants who have lived in the unit for at least one year.

Registration Requirements: $43.32 Per Unit, Every Year

Every landlord with a LARSO-covered property must register each unit with the Los Angeles Housing Department. The current annual registration fee is $43.32 per unit.

Key Registration Rules

• 50% of the fee may be passed through to tenants — you can charge tenants up to $21.66 per year ($1.81/month) as a surcharge on rent
• Registration is mandatory — failure to register does not exempt you from LARSO compliance; it just means you are also in violation of the registration requirement
• Late registration penalties can apply, and LAHD may restrict your ability to raise rent until registration is current
• LAHD tracks your rent history through the registration system, making it easy for tenants or investigators to verify whether your increases comply with the AGA

Non-registration is a red flag. If a tenant files a complaint and LAHD discovers your units are not registered, it signals broader non-compliance. LAHD has the authority to audit your rent increases going back to the original base rent and order refunds for any excess rent collected over the entire period of non-registration.

What Changed in January 2026

In January 2026, the Los Angeles City Council adopted amendments to the Rent Stabilization Ordinance that represented the most significant changes to LARSO in decades. Understanding these changes is essential for any landlord with pre-1978 properties in LA.

1. New AGA Formula

The formula shifted from 100% of CPI (3%–8% range) to 90% of CPI (1%–4% range). This change alone cuts the maximum possible rent increase in half — from 8% to 4%. Even in high-inflation years, LA landlords will never be able to raise rent by more than 4% on a LARSO-covered unit.

2. Elimination of Utility Pass-Through Increases

Under the old rules, landlords who paid for gas or electricity could pass through a portion of utility cost increases to tenants, on top of the AGA. This add-on has been eliminated. The AGA is now the complete allowable increase — no add-ons for utilities.

3. Elimination of Dependent (Additional Occupant) Surcharges

Previously, landlords could charge a small surcharge for each additional tenant beyond the first occupant in a unit. This was sometimes used to incrementally increase rent above the AGA. The 2026 amendments eliminated this provision as well.

4. Strengthened Enforcement

LAHD received additional enforcement authority and resources under the 2026 amendments. The department can now more aggressively pursue landlords who exceed the AGA, fail to register units, or attempt to circumvent rent stabilization through creative lease structures.

The net effect of these changes is clear: the City of Los Angeles has made a deliberate policy decision to tighten rent stabilization and reduce the gap between what landlords can charge and what tenants currently pay. Whether you agree with this policy or not, compliance is not optional.

How to Comply: Step-by-Step Checklist for LA Landlords

If you own rental property in the City of Los Angeles, here is what you need to do to ensure you are in full LARSO compliance:

1. Determine whether your property is covered. Check your Certificate of Occupancy date. If it was issued before October 1, 1978, and the property has two or more units, LARSO applies. You can verify this through the LA ZIMAS system or by contacting LAHD.
2. Register every unit with LAHD. If you have not already done so, register immediately. Pay the $43.32 per unit annual fee. Keep your registration current — LAHD will not let you file a legal rent increase on unregistered units.
3. Look up the current AGA. Check the LAHD website for the current Allowable General Adjustment. For July 2025–June 2026, it is 3.0%. Do not rely on AB 1482 calculators or statewide CPI tables — those give you the wrong number.
4. Calculate your maximum increase correctly. Multiply the current rent by the AGA percentage. On $2,500/month rent at 3.0% AGA, your maximum increase is $75/month. Do not add utility pass-throughs or dependent surcharges — those have been eliminated.
5. Serve proper written notice. Provide 30 days’ written notice for increases of 10% or less (which all LARSO increases will be). Serve the notice properly: personal delivery, substituted service, or mail (add 5 days for mailing).
6. Track the effective date. LARSO increases take effect based on the AGA period (July 1–June 30), but you must serve proper notice before the increase can take effect. Make sure your notice timing aligns with both the AGA period and the required notice period.
7. Keep records. Document every rent increase notice, the date it was served, the method of service, and the amount. LAHD maintains a rent registry, but your own records are your first line of defense in any dispute.
8. Never exceed the AGA. Even if you believe your property is exempt, verify with LAHD before applying a higher increase. The consequences of overcharging — refund of excess rent, penalties, and potential LAHD investigation — far outweigh the revenue from a slightly higher increase.
9. Review your leases annually. Make sure your lease language does not reference AB 1482 caps or statewide formulas if your property is actually subject to LARSO. Inconsistent lease terms create confusion and potential liability.
10. Consult an attorney for evictions. LARSO’s just cause requirements are stricter than AB 1482, and the relocation payment obligations are significantly higher. Do not attempt a no-fault eviction without legal counsel.

“The biggest compliance failure I see among LA landlords is not malice — it is confusion. They Google ‘California rent cap,’ get the AB 1482 number, and apply it without realizing their pre-1978 building is subject to a completely different law. That single mistake can trigger years of rent refund liability. Know which law governs your property before you raise rent by a single dollar.”

— Rachid Abadli, Founder & CEO at LeaseBase, California landlord and compliance technology developer

Common Mistakes LA Landlords Make

Beyond the core misconception about which cap applies, LA landlords frequently make these additional errors:

1. Confusing “Los Angeles” With “LA County”

LARSO applies only to the City of Los Angeles. If your property is in an unincorporated area of LA County, or in a separate incorporated city like Glendale, Burbank, Torrance, or Long Beach, LARSO does not apply. Some of those cities have their own rent control ordinances (like West Hollywood and Santa Monica), while others default to AB 1482. Always verify the exact jurisdiction of your property.

2. Applying the AGA to Vacant Units

LARSO allows landlords to set rent at market rate when a unit is voluntarily vacated. This is known as vacancy decontrol, permitted under the Costa-Hawkins Rental Housing Act. However, once a new tenant moves in, the rent is re-stabilized at the new initial rent, and all future increases are limited to the AGA. Some landlords mistakenly believe they can continue raising rent at market rates after resetting on vacancy — they cannot.

3. Ignoring the Registration Requirement

Some landlords assume that if they are not registered with LAHD, LARSO does not apply to them. This is incorrect. LARSO applies based on the property’s characteristics (age, location, unit count), not based on whether you have registered. Non-registration simply adds another violation to your record.

4. Using Statewide Calculators for LARSO Properties

Online rent increase calculators that reference AB 1482 will give you the wrong number for LARSO-covered properties. The formulas are completely different. Make sure any tool you use specifically accounts for Los Angeles rent stabilization rules.

How LARSO Interacts With AB 1482

AB 1482 explicitly exempts properties that are covered by a local rent control ordinance that is more restrictive. Since LARSO’s 3% cap is stricter than AB 1482’s ~8% cap, LARSO-covered properties are exempt from AB 1482’s rent cap provisions.

However, this exemption applies only to the rent cap. Some provisions of AB 1482 may still apply to LARSO properties in limited circumstances, particularly around notice requirements. In practice, LARSO’s own notice and just cause requirements are at least as protective as AB 1482’s, so the practical effect is that LARSO governs entirely for covered properties.

The key point: if your property is subject to LARSO, you follow LARSO. You do not get to pick the more favorable law. The stricter local ordinance controls.

Planning Ahead: Revenue Strategy Under LARSO

With the new 4% ceiling on LARSO increases, LA landlords with pre-1978 properties need to think differently about revenue growth. Here are practical strategies within the bounds of the law:

• Maximize vacancy decontrol. When a tenant voluntarily vacates, reset the rent to market rate. This is your primary mechanism for keeping rents aligned with the market in a LARSO building.
• Invest in capital improvements. LAHD allows landlords to petition for rent increases above the AGA for qualifying capital improvements. These are separate from the AGA and require LAHD approval, but they can provide additional revenue when major upgrades are needed.
• Apply the AGA every year. Do not skip years. Unlike some jurisdictions, LARSO does not allow you to bank unused increases. If you do not raise rent in a given year, that increase is lost permanently.
• Reduce operating costs. With limited ability to raise revenue, controlling expenses becomes more important. Energy efficiency upgrades, preventive maintenance, and vendor negotiation directly impact your bottom line.
• Track your portfolio by ordinance. If you own properties in different jurisdictions, make sure you know which law applies to each property. A property in the City of LA follows LARSO. A property in an unincorporated area of LA County follows AB 1482. A property in Santa Monica follows its own ordinance. Managing them all the same way is a compliance risk.

Frequently Asked Questions

What is the current LARSO rent increase for 2025–2026?

The Allowable General Adjustment (AGA) for July 1, 2025 through June 30, 2026 is 3.0%. This applies to all rent-stabilized units in the City of Los Angeles with a Certificate of Occupancy issued before October 1, 1978.

Is the LARSO cap really 3% when AB 1482 allows 8%?

Yes. AB 1482 explicitly exempts properties covered by stricter local rent control. LARSO is stricter, so it controls. You cannot choose between the two — the more restrictive ordinance applies automatically.

What happens if I raise rent above the LARSO cap?

The tenant can file a complaint with LAHD, which will investigate and can order you to refund all excess rent collected, plus penalties. In severe cases, LAHD can refer the matter for prosecution. Tenants may also pursue civil remedies including attorney’s fees.

Can I still raise rent to market rate when a tenant moves out?

Yes. Under Costa-Hawkins vacancy decontrol, you can set the initial rent at any amount when a unit is voluntarily vacated. However, once a new tenant moves in, the rent is re-stabilized and future increases are limited to the AGA.

Do I have to register my units with LAHD?

Yes. All LARSO-covered units must be registered with the Los Angeles Housing Department. The annual fee is $43.32 per unit, and you may pass through up to 50% ($21.66) to tenants. Failure to register does not exempt you from LARSO — it adds a separate violation.

What changed about LARSO in January 2026?

The LA City Council adopted a new AGA formula: 90% of CPI with a 1% floor and 4% ceiling, replacing the old formula of 100% of CPI with a 3% floor and 8% ceiling. Utility pass-through and dependent surcharge add-ons were also eliminated.

Stop Guessing. Know Your Actual Cap.

The difference between the right rent cap and the wrong one is not academic. For an LA landlord with a 10-unit pre-1978 building, applying the wrong formula can mean five or six figures in liability over just a few years. And with LAHD’s enhanced enforcement authority under the 2026 amendments, the risk of getting caught has never been higher.

Use the LeaseBase Los Angeles Rent Control Calculator to determine exactly what your LARSO-compliant maximum rent increase is. It accounts for the new formula, your specific rent amount, and the current AGA — so you never have to guess.

If you are not sure whether your property is covered by LARSO or AB 1482, the AB 1482 Calculator will help you determine which law applies based on your property’s age, location, and unit count. And the California Landlord Compliance Checklist covers the full landscape of state and local regulations you need to track.

Related reading

• AB 1482 California Rent Cap Guide — Full Breakdown
• California Rent Increase Notice Requirements 2026
• Common Rent Increase Mistakes & Penalties
• Why More California Landlords Are Self-Managing
• California Security Deposit Laws 2026: Complete Landlord Guide
• 2026 California Independent Landlord Report — Market Data & Trends