LA's Rent Stabilization Ordinance requires annual registration of every RSO-covered unit with the Los Angeles Housing Department (LAHD). The deadline is July 31 each year, the fee is set annually (2026: approximately $38.75 per unit), and non-registration has substantial consequences: rent increases become void, certain eviction categories are blocked, and administrative fines accrue. The registration process itself is straightforward — LAHD provides an online portal — but the compliance stakes are real.
Which properties must register
Annual registration applies to units covered by the LA Rent Stabilization Ordinance (LAMC Chapter XV). Coverage generally includes:
- Multi-unit properties with certificates of occupancy dated before October 1, 1978
- Located in the City of Los Angeles (not surrounding cities or unincorporated LA County)
- Both apartment-style and multi-unit configurations
Coverage typically excludes:
- Single-family homes and condominium units (though owners may still owe registration if the unit is otherwise covered by RSO)
- Buildings with certificates of occupancy dated on or after October 1, 1978
- Government-owned housing
- Housing subject to other regulatory regimes
- Owner-occupied duplexes in some configurations
The deadline
Registration is due by July 31 each year.
The LAHD registration window typically opens June 1. Landlords receive advance notice by mail — but not receiving the notice is not a defense to non-registration. Every RSO-covered property owner is expected to know the annual obligation.
Registration completed after July 31 is late but still valuable. Late registration reduces some but not all of the penalties for non-registration; consult the LAHD website for the specific late fee schedule.
The 2026 fee
For fiscal year 2026-27, LAHD's proposed fee is approximately $38.75 per unit. The fee is subject to annual adjustment through the City Council budget process. Fees can be paid:
- Directly by the landlord — most straightforward
- Passed through to tenants — a specified portion (typically 50%) can be added to monthly rent as a one-time "surcharge" following specific noticing requirements
Fees for prior years remain owed if not paid. Compound non-payment accumulates.
What registration requires
The registration form asks for:
- Property address and parcel number
- Number of covered units
- Current rent for each unit
- Current tenancy start date for each unit
- Owner and property management contact information
- Any changes since prior year registration (unit conversions, ownership changes, etc.)
Data submitted becomes part of LAHD's public registry — a portion of which is searchable by the public.
Consequences of non-registration
Missing annual registration has cascading effects:
1. Rent increases are void. A landlord who has not registered cannot lawfully raise rent. Any increase served during a non-registered period is uncollectible, and rent charged at the increased rate can be recovered by the tenant with statutory interest.
2. Certain evictions are blocked. Non-registered landlords are barred from serving certain no-fault eviction notices. Even at-fault evictions may be affected in some categories.
3. Administrative fines. LAHD can impose administrative fines for non-registration. Amounts vary by year but are typically several hundred dollars per unit per year of non-registration.
4. Registration surcharge passthroughs are voided. Landlords who intend to pass through the registration fee to tenants must have registered themselves. Non-registered landlords cannot collect the surcharge.
5. Private civil liability. Tenants can bring private actions to recover overpaid rent charged during periods of non-registration.
The registration process
LAHD's online registration portal is the primary submission channel. Steps:
1. Access the portal. Available through LAHD's website (housing.lacity.gov). Property owners create an account tied to their property portfolio.
2. Review pre-populated data. LAHD pre-fills information from prior year registrations. Landlords must verify and correct as needed.
3. Update tenant-level data. Current rent, tenancy start dates, and any tenancy changes since last year.
4. Report changes. Sold, converted, demolished, or newly-added units all require reporting.
5. Pay the fee. Online payment via credit card or ACH.
6. Print or download confirmation. Retain the registration confirmation for your records. LAHD may issue a physical registration certificate; retain a copy.
Registration verification
Registration status is publicly checkable. LAHD's registry allows anyone to verify whether a specific address is currently registered. Prospective tenants sometimes check this before signing a lease. Attorneys check it when litigating rent or eviction disputes. Failure to register creates visible risk beyond just the direct penalties.
A specific worked example
Consider a landlord who owns a 12-unit apartment building on Vermont Avenue, built in 1965.
- Coverage: pre-1978, City of LA, multi-unit → RSO applies → annual registration required
- Fee: 12 units × $38.75 = $465 annual registration fee
- Passthrough option: landlord may pass through 50% ($19.375 per unit) to tenants as a rent surcharge with proper 30-day notice
- Deadline: July 31
- If missed: rent increases scheduled for the following year become uncollectible until registration is completed and prior fees paid
Now imagine the landlord bought the building on July 15 — two weeks before the deadline. Are they responsible?
- The registration obligation runs with the property, not the owner
- The new owner is responsible for the current year's registration
- Prior year unpaid fees remain owed by whoever owned the property at that time (though title issues can arise)
- Best practice: verify registration status as part of pre-purchase due diligence
Comparison to unincorporated LA County
Unincorporated LA County has its own rent stabilization program (LACC Chapter 8.52) with its own registration requirements, administered by the LA County Department of Consumer and Business Affairs — a separate agency from LAHD. Fees, deadlines, and coverage differ from City of LA RSO.
If your property is in an incorporated city within LA County (Culver City, Beverly Hills, Santa Monica, etc.), that city's own rent-stabilization regime — if any — governs.
What to do next
Two immediate actions worth taking:
1. Confirm your registration status right now. If you're not sure whether you're currently registered, check via LAHD's public verification tool. Discovering non-registration in June is manageable; discovering it in December is expensive.
2. Add the July 31 deadline to your annual calendar. Registration is one of the most predictable compliance obligations — same date every year, same process. Missing it is nearly always avoidable with basic calendar hygiene.
LandlordOS surfaces annual registration status and the July 31 deadline as part of the RSO compliance record. Add your property to prepare your compliance surface.